5.3-RELEASE TODO

From: Scott Long <scottl_at_FreeBSD.org>
Date: Fri, 5 Nov 2004 01:41:07 -0700 (MST)
This is an automated weekly mailing of the FreeBSD 5.3 open issues list.
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FreeBSD 5.3


                          FreeBSD 5.3 Open Issues

                                Open Issues

 This is a list of open issues that need to be resolved for FreeBSD 5.3. If
 you have any updates for this list, please e-mail re_at_FreeBSD.org.

Issues that require investigation

 +------------------------------------------------------------------------+
 |    Issue     |    Status     |    Responsible     |    Description     |
 +------------------------------------------------------------------------+

Show stopper defects for 5.3-RELEASE

 +------------------------------------------------------------------------+
 |    Issue     |    Status     |    Responsible     |    Description     |
 +------------------------------------------------------------------------+

Required features for 5.3-RELEASE

 +------------------------------------------------------------------------+
 |    Issue     |    Status     |    Responsible     |    Description     |
 +------------------------------------------------------------------------+

Desired features and bugfixes for 5.3-RELEASE

 +------------------------------------------------------------------------+
 |      Issue       |   Status    |  Responsible   |     Description      |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | There have been      |
 |                  |             |                | reports that         |
 |                  |             |                | specific gigabit     |
 |                  |             |                | ethernet cards       |
 |                  |             |                | supported by the     |
 |                  |             |                | if_re driver are     |
 | Reports of poor  |             |                | experiencing poor    |
 | performance with |             |                | performance; a patch |
 | the if_re driver | In progress | John-Mark      | has been posted that |
 | (re ethernet     |             | Gurney         | corrects timer and   |
 | interfaces)      |             |                | interrupt problems   |
 |                  |             |                | with the driver, and |
 |                  |             |                | is believed to       |
 |                  |             |                | correct the          |
 |                  |             |                | performace problems. |
 |                  |             |                | The patch will be    |
 |                  |             |                | merged to 6.x and    |
 |                  |             |                | 5.x shortly.         |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | With improved        |
 |                  |             |                | support for          |
 |                  |             |                | threading            |
 |                  |             |                | primitives, support  |
 |                  |             |                | is now required to   |
 | GDB thread       |             | David Xu,      | ease debugging of    |
 | support          | In progress | Marcel         | threaded             |
 |                  |             | Moolenaar      | applications.        |
 |                  |             |                | Ideally, this        |
 |                  |             |                | support will work    |
 |                  |             |                | for both libthr and  |
 |                  |             |                | libkse threading     |
 |                  |             |                | models.              |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | Kernel bits          |
 | KSE support for  | In progress | Ken Smith      | implemented,         |
 | sparc64          |             |                | userland not         |
 |                  |             |                | implemented.         |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | Almost all process   |
 |                  |             |                | debugging tools have |
 |                  |             |                | been updated to use  |
 |                  |             |                | non-procfs kernel    |
 |                  |             |                | primitives, with the |
 |                  |             |                | exception of         |
 |                  |             |                | truss(1). As procfs  |
 |                  |             |                | is considered        |
 |                  |             |                | deprecated due to    |
 |                  |             |                | its inherent         |
 |                  |             |                | security risks, it   |
 | truss support    |             |                | is highly desirable  |
 | for ptrace       | --          | --             | to update truss to   |
 |                  |             |                | operate in a         |
 |                  |             |                | post-procfs world.   |
 |                  |             |                | Dag-Erling Smorgrav  |
 |                  |             |                | had prototype        |
 |                  |             |                | patches;             |
 |                  |             |                | Robert Drehmel is    |
 |                  |             |                | developing and       |
 |                  |             |                | testing patches now. |
 |                  |             |                | Support for system   |
 |                  |             |                | call tracing has     |
 |                  |             |                | been added to        |
 |                  |             |                | ptrace().            |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | FAST_IPSEC currently |
 |                  |             |                | cannot be used       |
 |                  |             |                | directly with the    |
 |                  |             |                | KAME IPv6            |
 |                  |             |                | implementation,      |
 |                  |             |                | requiring an         |
 |                  |             |                | additional level of  |
 |                  |             |                | IP tunnel            |
 |                  |             |                | indirection to       |
 |                  |             |                | protect IPv6 packets |
 | FAST_IPSEC and   |             |                | when using hardware  |
 | KAME             | Not done    | --             | crypto acceleration. |
 | compatibility    |             |                | This issue must be   |
 |                  |             |                | resolved so that the |
 |                  |             |                | two services may     |
 |                  |             |                | more easily be used  |
 |                  |             |                | together. Among      |
 |                  |             |                | other things, this   |
 |                  |             |                | will require a       |
 |                  |             |                | careful review of    |
 |                  |             |                | the handling of mbuf |
 |                  |             |                | header copying and   |
 |                  |             |                | m_tag support in the |
 |                  |             |                | KAME IPv6 code.      |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | A process cannot be  |
 |                  |             |                | interrupted while    |
 |                  |             |                | waiting on a lock.   |
 | rpc.lockd(8)     |             |                | Fixing this requires |
 | stability        | --          | --             | that the RPC code be |
 |                  |             |                | taught how to deal   |
 |                  |             |                | with lock            |
 |                  |             |                | cancellation and     |
 |                  |             |                | interruption events. |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | Kernel modules are   |
 |                  |             |                | currently built      |
 |                  |             |                | independently from a |
 |                  |             |                | kernel               |
 |                  |             |                | configuration, and   |
 |                  |             |                | independently from   |
 |                  |             |                | one another,         |
 |                  |             |                | resulting in         |
 |                  |             |                | substantially        |
 |                  |             |                | redundant            |
 |                  |             |                | compilation of       |
 |                  |             |                | objects, as well as  |
 |                  |             |                | the inability to     |
 |                  |             |                | easily manage        |
 |                  |             |                | compile-time options |
 | Revised kld      |             |                | for kernel objects   |
 | build            | Not done    | Peter Wemm     | (such as MAC, PAE,   |
 | infrastructure   |             |                | etc) that may        |
 |                  |             |                | require conditional  |
 |                  |             |                | compilation in the   |
 |                  |             |                | kernel modules. In   |
 |                  |             |                | order to improve     |
 |                  |             |                | build performance    |
 |                  |             |                | and better support   |
 |                  |             |                | options of this      |
 |                  |             |                | sort, the KLD build  |
 |                  |             |                | infrastructure needs |
 |                  |             |                | to be revamped.      |
 |                  |             |                | Peter Wemm has done  |
 |                  |             |                | some initial         |
 |                  |             |                | prototyping, and     |
 |                  |             |                | should be contacted  |
 |                  |             |                | before starting on   |
 |                  |             |                | this work.           |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | Truss appears to     |
 |                  |             |                | contain a race       |
 |                  |             |                | condition during the |
 |                  |             |                | start-up of          |
 |                  |             |                | debugging, which can |
 |                  |             |                | result in truss      |
 |                  |             |                | failing to attach to |
 |                  |             |                | the process before   |
 |                  |             |                | it exits. The        |
 |                  |             |                | symptom is that      |
 |                  |             |                | truss reports that   |
 |                  |             |                | it cannot open the   |
 |                  |             |                | procfs node          |
 |                  |             |                | supporting the       |
 |                  |             |                | process being        |
 |                  |             |                | debugged. A bug also |
 | Race conditions  | Errata      | Robert Drehmel | appears to exist     |
 | in truss         | candidate   |                | where in truss will  |
 |                  |             |                | hang if execve()     |
 |                  |             |                | returns ENOENT. A    |
 |                  |             |                | further race appears |
 |                  |             |                | to exist in which    |
 |                  |             |                | truss will return    |
 |                  |             |                | "PIOCWAIT:           |
 |                  |             |                | Input/output error"  |
 |                  |             |                | occasionally on      |
 |                  |             |                | startup. The fix for |
 |                  |             |                | this sufficiently    |
 |                  |             |                | changes process      |
 |                  |             |                | execution handling   |
 |                  |             |                | that we will defer   |
 |                  |             |                | the fix to post-5.0  |
 |                  |             |                | and consider this    |
 |                  |             |                | errata.              |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | The LOR reported in  |
 |                  |             |                | PR kern/55175 needs  |
 | filedesc LOR     | Not done    | --             | to be fixed.         |
 |                  |             |                | Filedesc locking     |
 |                  |             |                | needs to be heavily  |
 |                  |             |                | reviewed in general. |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | Userland bits        |
 | KSE support for  | In progress | Marcel         | implemented, kernel  |
 | alpha            |             | Moolenaar      | bits not             |
 |                  |             |                | implemented.         |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | For kernel API/ABI   |
 |                  |             |                | compatibility        |
 |                  |             |                | reasons, it would be |
 | CAM locking      | In progress | Scott Long,    | desirable to have    |
 |                  |             | Justin Gibbs   | the CAM locking      |
 |                  |             |                | strategy determined  |
 |                  |             |                | and loosely          |
 |                  |             |                | implemented for 5.3. |
 |------------------+-------------+----------------+----------------------|
 |                  |             |                | When running syscons |
 |                  |             |                | on an Ultra-30 with  |
 |                  |             |                | Creator-3D typing    |
 |                  |             |                | characters on the    |
 |                  |             |                | keyboard produces    |
 |                  |             |                | garbage. Problem     |
 |                  |             |                | reported by Kris     |
 | syscons not      |             |                | Kennaway. Debugging  |
 | working on       | Not done    | --             | difficult due to     |
 | Sparc64 Ultra-30 |             |                | lack of this         |
 |                  |             |                | particular           |
 |                  |             |                | configuration among  |
 |                  |             |                | developers and       |
 |                  |             |                | problem isn't        |
 |                  |             |                | present on similar   |
 |                  |             |                | hardware (e.g. no    |
 |                  |             |                | problem on Ultra-60  |
 |                  |             |                | w/Creator-3D).       |
 +------------------------------------------------------------------------+

Documentation items that must be resolved for 5.3

+----------------------------------------------------------------------------------------------+
|    Issue     | Status |Responsible|                       Description                        |
|--------------+--------+-----------+----------------------------------------------------------|
|              |        |Gavin      |The installation documentation doesn't take into account  |
|i386 Floppy   |        |Atkinson,  |the new floppy images (with a full kernel split across    |
|Installation  |Done    |Bruce A.   |multiple disks). This should be updated.                  |
|Docs          |        |Mah        |References:                                               |
|              |        |           |docs/70485 (closed)                                       |
|--------------+--------+-----------+----------------------------------------------------------|
|Finish        |        |Simon L.   |Finish removing mention of individual devices in the      |
|hardware notes|Done    |Nielsen,   |hardware notes and use auto-generated lists, based on     |
|trimming      |        |Christian  |driver manual pages, instead.                             |
|              |        |Brueffer   |                                                          |
|--------------+--------+-----------+----------------------------------------------------------|
|              |        |           |The snd(4) and pcm(4) drivers have been renamed but their |
|              |        |           |manual pages are still outdated. sound(4) has to be added |
|              |        |           |and pcm(4), csa(4), gusc(4), sbc(4), and uaudio(4) should |
|sound(4)      |        |           |be revised. Other manual pages which refer to pcm(4) (if  |
|related manual|Done    |Simon L.   |any) should possibly be revised, too. In addition,        |
|pages         |        |Nielsen    |supported cards list needs to be updated.                 |
|              |        |           |References:                                               |
|              |        |           |Manpage for snd_solo on -doc_at_                             |
|              |        |           |[PATCH] sound(4) related manpages 5.3 TODO item on -doc_at_  |
|              |        |           |src/share/man/man4/Makefile rev.1.279                     |
|--------------+--------+-----------+----------------------------------------------------------|
|              |        |           |This section is outdated, some rewrites are needed for    |
|Sound section |        |Marc       |5.3-RELEASE.                                              |
|in the        |Done    |Fonvieille |References:                                               |
|Handbook      |        |           |doc/en_US.ISO8859-1/books/handbook/multimedia/chapter.sgml|
|              |        |           |rev.1.94                                                  |
|--------------+--------+-----------+----------------------------------------------------------|
|FDP           |        |           |With the snd(4) and pcm(4) drivers changes, documentations|
|documentations|Not done|--         |(FAQ) regarding the use of these drivers need an update.  |
|related pcm(4)|        |           |                                                          |
|--------------+--------+-----------+----------------------------------------------------------|
|              |        |           |Xin LI pointed out that FreeBSD 5.3-RELEASE is the first  |
|              |        |           |stable release on 5.X and it is (hopefully) not for early |
|              |        |           |adopters. Early Adopter's Guide is still useful, but      |
|Early         |        |Bruce A.   |contains a bit old information. Some parts of this guide  |
|Adopter's     |Done    |Mah, Tom   |need a rewrite, and this document should be published as  |
|Guide         |        |Rhodes     |"4.X to 5.X Migration Guide", which focuses difference    |
|              |        |           |between 4.X and 5.X.                                      |
|              |        |           |References:                                               |
|              |        |           |Draft for review                                          |
|              |        |           |discussion on -doc_at_ and -current_at_                         |
|--------------+--------+-----------+----------------------------------------------------------|
|              |        |           |Some parts are outdated. doc/70485 has been committed, but|
|              |        |           |more work is needed to reflect the realities. bmah_at_       |
|              |        |           |pointed out that we should have "quick-start" installation|
|Installation  |Not done|Tom Rhodes |guide for each platform instead of the current ones       |
|Notes         |        |           |because they become too long and difficult to be          |
|              |        |           |maintained.                                               |
|              |        |           |References:                                               |
|              |        |           |doc/70485 (closed)                                        |
|--------------+--------+-----------+----------------------------------------------------------|
|              |        |Ken Tom,   |Update the X11 chapter of the Handbook for X.Org's X11    |
|Xorg          |Done    |Marc       |server.                                                   |
|              |        |Fonvieille |References:                                               |
|              |        |           |books/handbook/config/chapter.sgml rev.1.147              |
|--------------+--------+-----------+----------------------------------------------------------|
|              |        |           |Ch.11.4 and 11.5 of the Handbook must be updated to       |
|              |        |           |mention the new rc.d scripts and some ports use           |
|rc.d scripts  |Done    |Tom Rhodes |/etc/rc.conf for their configuration.                     |
|              |        |           |References:                                               |
|              |        |           |books/handbook/config/chapter.sgml rev.1.170              |
|              |        |           |books/handbook/config/chapter.sgml rev.1.172              |
|--------------+--------+-----------+----------------------------------------------------------|
|Handbook's    |        |           |Chapter 8 must be updated to match 5.3-RELEASE.           |
|kernel        |Done    |Ceri Davies|References:                                               |
|configuration |        |           |docs/70674 (closed)                                       |
|chapter       |        |           |books/handbook/kernelconfig/chapter.sgml rev.1.135        |
|--------------+--------+-----------+----------------------------------------------------------|
|              |        |           |Some parts of Section 14.10 are outdated and are not      |
|Handbook's    |        |           |correct for 5.X systems.                                  |
|IPsec section |Not done|--         |References:                                               |
|              |        |           |ipsec on -doc_at_                                            |
|              |        |           |Problem with IPSEC in handbook on -doc_at_                   |
|--------------+--------+-----------+----------------------------------------------------------|
|Handbook's    |Not done|--         |Vinum chapter needs to be revised for 5.X systems.        |
|Vinum chapter |        |           |                                                          |
+----------------------------------------------------------------------------------------------+

Testing focuses for 5.3-RELEASE

 +------------------------------------------------------------------------+
 |       Issue       |    Status     |  Responsible  |    Description     |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | KSE has matured to |
 |                   |               |               | the point of being |
 |                   |               |               | more stable and    |
 |                   |               |               | POSIX-compliant    |
 |                   |               |               | than the           |
 |                   |               |               | traditional        |
 |                   |               |               | libc_r. All Tier-1 |
 |                   |               |               | platforms MUST     |
 |                   |               |               | have stable KSE    |
 | KSE as the        |               | David Xu,     | support for 5.3 in |
 | default threads   | Needs testing | Daniel        | order to support a |
 | library           |               | Eischen       | consistent         |
 |                   |               |               | transition.        |
 |                   |               |               | Additionally, all  |
 |                   |               |               | ports that depend  |
 |                   |               |               | on the pthreads    |
 |                   |               |               | API must be        |
 |                   |               |               | modified to        |
 |                   |               |               | properly detect    |
 |                   |               |               | and support the    |
 |                   |               |               | default threading  |
 |                   |               |               | library.           |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Binutils needs     |
 |                   |               |               | updating in order  |
 | Updated binutils  |               |               | to support new     |
 | for all platforms | Needs testing | David O'Brien | platforms, newer   |
 |                   |               |               | GDB versions, and  |
 |                   |               |               | Thread Local       |
 |                   |               |               | Storage.           |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | The previous GCC   |
 |                   |               |               | 3.3 snapshot       |
 |                   |               |               | included           |
 |                   |               |               | regressions in     |
 |                   |               |               | alignment of       |
 |                   |               |               | floating point     |
 | gcc 3.3 floating  |               |               | arguments,         |
 | point alignment   | Needs testing |               | resulting in a     |
 | regression        |               |               | substantial        |
 |                   |               |               | performance        |
 |                   |               |               | degradation. The   |
 |                   |               |               | recent GCC 3.4.2   |
 |                   |               |               | import should fix  |
 |                   |               |               | this, but more     |
 |                   |               |               | testing is needed. |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Jun Kuriyama has   |
 |                   |               |               | reported a failed  |
 |                   |               |               | locking assertion  |
 | in6_pcbnotify()   | Done          | Robert Watson | with IPv6 TCP      |
 | panic with TCP    |               |               | notifications.     |
 |                   |               |               | This problem is    |
 |                   |               |               | believed to be     |
 |                   |               |               | corrected.         |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | To complete        |
 |                   |               |               | support for        |
 |                   |               |               | thread-local       |
 |                   |               |               | storage on         |
 |                   |               |               | FreeBSD,           |
 | Per-platform      |               | Doug Rabson,  | per-architecture   |
 | Thread-Local      | Needs testing | Marcel        | changes must be    |
 | Storage           |               | Moolenaar     | made. Currently    |
 |                   |               |               | pending platforms  |
 |                   |               |               | are amd64, alpha,  |
 |                   |               |               | ia64, i386,        |
 |                   |               |               | sparc64, and       |
 |                   |               |               | powerpc.           |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | High load on SMP   |
 |                   |               |               | systems appears to |
 |                   |               |               | result in a hard   |
 |                   |               |               | hang related to VM |
 |                   |               |               | IPI. Doug White    |
 | SMP instability   |               | Doug White,   | has prepared a     |
 | under load        | Needs testing | Alan L. Cox   | candidate patch    |
 |                   |               |               | that appears to    |
 |                   |               |               | resolve this       |
 |                   |               |               | instability, which |
 |                   |               |               | is currently in    |
 |                   |               |               | testing for merge  |
 |                   |               |               | to the CVS HEAD.   |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Significant parts  |
 |                   |               |               | of the network     |
 |                   |               |               | stack (especially  |
 |                   |               |               | IPv4, UNIX domain  |
 |                   |               |               | IPC, and sockets)  |
 |                   |               |               | now have           |
 |                   |               |               | fine-grained       |
 |                   |               |               | locking of their   |
 |                   |               |               | data structures.   |
 |                   |               |               | It's possible to   |
 |                   |               |               | run many common    |
 |                   |               |               | network subsystems |
 |                   |               |               | and services       |
 |                   |               |               | without the Giant  |
 | Fine-grained      |               |               | lock. However, a   |
 | network stack     |               |               | number of device   |
 | locking without   | Needs testing | Robert Watson | drivers and less   |
 | Giant             |               |               | mainstream network |
 |                   |               |               | subsystems are     |
 |                   |               |               | currently not      |
 |                   |               |               | MPSAFE. 5.3 betas  |
 |                   |               |               | have shipped with  |
 |                   |               |               | Giant-free         |
 |                   |               |               | networking by      |
 |                   |               |               | default, with some |
 |                   |               |               | bug reports and    |
 |                   |               |               | fixes in later     |
 |                   |               |               | betas and release  |
 |                   |               |               | candidates. Please |
 |                   |               |               | report any         |
 |                   |               |               | problems to the    |
 |                   |               |               | current_at_ mailing   |
 |                   |               |               | list.              |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | KLDs work when     |
 |                   |               |               | loaded from        |
 |                   |               |               | userland, but not  |
 |                   |               | David         | from the loader.   |
 | kld support for   | Needs testing | O'Brien, Ian  | kldxref and loader |
 | amd64             |               | Dowse         | support has been   |
 |                   |               |               | committed to HEAD  |
 |                   |               |               | and RELENG_5 and   |
 |                   |               |               | needs final        |
 |                   |               |               | testing.           |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Recent changes to  |
 |                   |               |               | the ATA driver     |
 |                   |               |               | trigger a bug on   |
 |                   |               | So/ren        | sparc64 that       |
 | ATA panics under  | Needs testing | Schmidt,      | causes a panic on  |
 | sparc64           |               | Scott Long    | boot. This was     |
 |                   |               |               | caused by bugs in  |
 |                   |               |               | busdma that have   |
 |                   |               |               | been hopefully     |
 |                   |               |               | fixed.             |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | The ifconf() ioctl |
 |                   |               |               | for listing        |
 |                   |               |               | network interfaces |
 |                   |               |               | performs a         |
 |                   |               |               | copyout() while    |
 |                   |               |               | holding the global |
 |                   |               |               | ifnet list mutex.  |
 |                   |               |               | This generates a   |
 | ifconf() sleep    | Done          | Brooks Davis  | witness warning in |
 | warning           |               |               | the event that     |
 |                   |               |               | copyout()          |
 |                   |               |               | generates a page   |
 |                   |               |               | fault, and risks   |
 |                   |               |               | more serious       |
 |                   |               |               | problems. This     |
 |                   |               |               | problem is         |
 |                   |               |               | believed to be     |
 |                   |               |               | corrected.         |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | There are reports  |
 |                   |               |               | of applications    |
 |                   |               |               | wedging in poll()  |
 |                   |               |               | and select() while |
 |                   |               |               | running the        |
 |                   |               |               | network stack      |
 |                   |               |               | without the Giant  |
 | poll()/select()   |               |               | lock. A recent     |
 | application wedge |               |               | sleepq change      |
 | reports with      | Done          | Robert Watson | appears to have    |
 | debug.mpsafenet=1 |               |               | caused some of the |
 |                   |               |               | observed problems  |
 |                   |               |               | to go away (others |
 |                   |               |               | are difficult to   |
 |                   |               |               | test for due to    |
 |                   |               |               | recent SMP         |
 |                   |               |               | instability). This |
 |                   |               |               | problem appears to |
 |                   |               |               | be corrected.      |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | There have been    |
 |                   |               |               | several reports of |
 |                   |               |               | if_em cards        |
 | if_em wedging     |               |               | "wedging" under    |
 | under high pps    | Done          | Max Laier     | high               |
 |                   |               |               | packets-per-second |
 |                   |               |               | load. This problem |
 |                   |               |               | appears to have    |
 |                   |               |               | been corrected.    |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | A recent           |
 |                   |               |               | regression in the  |
 |                   |               |               | USB code is        |
 | Panic on USB      |               | Warner Losh,  | causing panics     |
 | detach            | Needs testing | Scott Long    | when a USB device  |
 |                   |               |               | detaches,          |
 |                   |               |               | especially USB     |
 |                   |               |               | hubs. A fix is in  |
 |                   |               |               | RELENG_5 now.      |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | There are reports  |
 |                   |               |               | that racoon is     |
 |                   |               |               | unable to complete |
 |                   |               |               | IKE negotiation    |
 |                   |               |               | due to a send to   |
 |                   |               |               | the pfkey socket   |
 |                   |               |               | returning ENOBUFS. |
 | KAME IPSEC        |               | Robert        | This appears to be |
 | "ENOBUFS" problem | Done          | Watson, Sam   | a result of an     |
 | with racoon and   |               | Leffler       | incorrect          |
 | mbuma             |               |               | assumption about   |
 |                   |               |               | mbuf data size due |
 |                   |               |               | to a change        |
 |                   |               |               | resulting from     |
 |                   |               |               | mbuma. This        |
 |                   |               |               | problem appears to |
 |                   |               |               | have been          |
 |                   |               |               | corrected.         |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | BIND9 is now in    |
 |                   |               |               | RELENG_5 and HEAD. |
 |                   |               | Doug Barton,  | Testing is needed  |
 | BIND9 import into |               | Dag-Erling    | of basic           |
 | 5-CURRENT         | Done          | Smorgrav, Tom | functionality,     |
 |                   |               | Rhodes        | migration from     |
 |                   |               |               | 8.x, and 3rd party |
 |                   |               |               | packages in the    |
 |                   |               |               | ports tree.        |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Synaptics updates  |
 |                   |               |               | to the psm(4)      |
 |                   |               |               | driver have        |
 |                   |               |               | resulted in poor   |
 |                   |               |               | interactivity for  |
 |                   |               |               | taps and button    |
 | Synaptics         | Needs testing | Philip Paeps  | press events for   |
 | touchpad problems |               |               | some users.        |
 |                   |               |               | Support is now     |
 |                   |               |               | disabled by        |
 |                   |               |               | default but work   |
 |                   |               |               | will procede to    |
 |                   |               |               | fix the underlying |
 |                   |               |               | problems.          |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Significant work   |
 |                   |               |               | has happened in    |
 | Scheduler-related |               | Scott Long,   | the scheduler to   |
 | hangs involving   | Needs testing | Julian        | fix stability      |
 | threads           |               | Elischer      | problems. More     |
 |                   |               |               | testing for UP and |
 |                   |               |               | SMP under heavily  |
 |                   |               |               | load is needed.    |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Jun Kuriyama has   |
 |                   |               |               | reported problems  |
 |                   |               |               | with NFS over IPv6 |
 |                   |               |               | not functioning    |
 |                   |               |               | correctly as of    |
 |                   |               |               | the improved NFS   |
 |                   |               |               | support for        |
 |                   |               |               | disconnection      |
 |                   |               |               | changes. Doug      |
 |                   |               |               | White has tracked  |
 | NFS over IPv6     |               |               | down the source of |
 | problems          | Done          | Doug White    | the problem        |
 |                   |               |               | (EMSGSIZE being    |
 |                   |               |               | returned by IPv6   |
 |                   |               |               | UDP send routine   |
 |                   |               |               | due to             |
 |                   |               |               | fragmentation),    |
 |                   |               |               | and is currently   |
 |                   |               |               | exploring possible |
 |                   |               |               | fixes. This        |
 |                   |               |               | problem appears to |
 |                   |               |               | have been          |
 |                   |               |               | corrected.         |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | There have been    |
 |                   |               |               | reports of         |
 |                   |               |               | occasional         |
 |                   |               |               | corruption of      |
 |                   |               |               | socket buffers.    |
 |                   |               |               | This may have been |
 | Reports of socket |               |               | the result of      |
 | buffer corruption | Done          | Robert Watson | missing socket     |
 | in tcp_output()   |               |               | buffer locking in  |
 |                   |               |               | tcp_output(),      |
 |                   |               |               | which has now been |
 |                   |               |               | corrected in 6.x   |
 |                   |               |               | and 5.x; this      |
 |                   |               |               | problem is         |
 |                   |               |               | believed to be     |
 |                   |               |               | fixed.             |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | There have been    |
 |                   |               |               | reports of system  |
 |                   |               |               | hangs while using  |
 |                   |               |               | ISDN with the i4b  |
 |                   |               |               | ISDN framework on  |
 |                   |               |               | SMP systems. These |
 |                   |               |               | likely result from |
 |                   |               |               | insufficient       |
 |                   |               |               | synchronization in |
 |                   |               |               | the i4b            |
 |                   |               |               | implementation     |
 |                   |               |               | when runnning      |
 | Reports of hangs  |               |               | without the Giant  |
 | using i4b         | Done          | Robert Watson | lock over the      |
 | (isdn4bsd)        |               |               | network stack. The |
 |                   |               |               | workaround until   |
 |                   |               |               | this is fixed is   |
 |                   |               |               | to re-assert the   |
 |                   |               |               | Giant lock over    |
 |                   |               |               | the stack when i4b |
 |                   |               |               | is compiled into   |
 |                   |               |               | the kernel; this   |
 |                   |               |               | has been committed |
 |                   |               |               | to 6.x and and     |
 |                   |               |               | 5.x. This problem  |
 |                   |               |               | appears to have    |
 |                   |               |               | been corrected.    |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | There have been    |
 |                   |               |               | reports that       |
 |                   |               |               | multicast socket   |
 |                   |               |               | options on raw     |
 |                   |               |               | sockets no longer  |
 |                   |               |               | work properly with |
 |                   |               |               | daemons changing   |
 |                   |               |               | privilege or       |
 |                   |               |               | setuid binaries.   |
 | Problems with     |               | Robert        | These symptoms     |
 | multicast and     | Done          | Watson,       | have been tracked  |
 | setuid            |               | Christian     | down to bugs       |
 | binaries/daemons  |               | Peron         | relating to        |
 |                   |               |               | permitting limited |
 |                   |               |               | use of raw sockets |
 |                   |               |               | in jail(). A patch |
 |                   |               |               | correcting these   |
 |                   |               |               | problems has been  |
 |                   |               |               | merged to 6.x and  |
 |                   |               |               | 5.x. This problem  |
 |                   |               |               | appears to have    |
 |                   |               |               | been corrected.    |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | There have been    |
 |                   |               |               | reports of a       |
 |                   |               |               | so_count invariant |
 |                   |               |               | violation in       |
 |                   |               |               | sofree(), which    |
 |                   |               |               | may relate to race |
 | Reports of        |               | Robert        | conditions in      |
 | sodealloc() panic | Done          | Watson, Brian | sofree() against   |
 | under heavy load  |               | Feldman       | accept(), which    |
 |                   |               |               | were recently      |
 |                   |               |               | corrected in 6.x,  |
 |                   |               |               | and has been       |
 |                   |               |               | merged to 5.x.     |
 |                   |               |               | This problem       |
 |                   |               |               | appears to have    |
 |                   |               |               | been corrected.    |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Apple's Darwin     |
 |                   |               |               | operating system   |
 |                   |               |               | has fairly         |
 |                   |               |               | extensive          |
 | Merge of Darwin   |               |               | improvements to    |
 | msdosfs, other    | Done          | --            | msdosfs and other  |
 | fixes             |               |               | kernel services;   |
 |                   |               |               | these fixes must   |
 |                   |               |               | be reviewed and    |
 |                   |               |               | merged to the      |
 |                   |               |               | FreeBSD tree.      |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | There have been    |
 |                   |               |               | reports that if_de |
 |                   |               |               | ethernet cds       |
 |                   |               |               | behave poorly when |
 |                   |               |               | running with       |
 |                   |               |               | debug.mpsafenet=1, |
 |                   |               |               | even though the    |
 |                   |               |               | driver is marked   |
 | Reports of poor   |               |               | to run all         |
 | performance of    |               | Robert        | portions with the  |
 | the if_de driver  | Done          | Watson,       | Giant lock. This   |
 | (de ethernet      |               | John-Mark     | suggests a race    |
 | interfaces)       |               | Gurney        | condition specific |
 |                   |               |               | to this drive,     |
 |                   |               |               | which is currently |
 |                   |               |               | being debugged. A  |
 |                   |               |               | patch has been     |
 |                   |               |               | committed to the   |
 |                   |               |               | 6.x and 5.x        |
 |                   |               |               | branches, and      |
 |                   |               |               | appears to correct |
 |                   |               |               | the problem.       |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Attaching GDB to a |
 |                   |               |               | threaded process   |
 |                   |               |               | will leave the     |
 |                   |               |               | process in an      |
 |                   |               |               | unkillable state.  |
 |                   |               |               | Rebooting the      |
 |                   |               |               | machine is the     |
 | Threaded          |               |               | only way to        |
 | application get   |               |               | recover from this. |
 | stuck in an       |               |               | This is easily     |
 | unkillable state  | Done          | David Xu      | triggered when a   |
 | when touched by   |               |               | KDE app crashes    |
 | GDB               |               |               | and KDE            |
 |                   |               |               | automatically      |
 |                   |               |               | attaches GDB to it |
 |                   |               |               | to extract a stack |
 |                   |               |               | trace. A candidate |
 |                   |               |               | fix is in          |
 |                   |               |               | 6-CURRENT. More    |
 |                   |               |               | testing and review |
 |                   |               |               | is needed.         |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | Truss appears to   |
 |                   |               |               | have another       |
 |                   |               |               | problem. It is     |
 |                   |               |               | repeatable by      |
 |                   |               |               | running "truss -f  |
 | More truss        |               | Alfred        | fsck -p /",        |
 | problems          | Done          | Perlstein     | suspending it with |
 |                   |               |               | ^Z, and then       |
 |                   |               |               | killing truss. It  |
 |                   |               |               | will leave behind  |
 |                   |               |               | the fsck processes |
 |                   |               |               | which will be      |
 |                   |               |               | unkillable.        |
 |-------------------+---------------+---------------+--------------------|
 |                   |               |               | There have been    |
 |                   |               |               | reports that,      |
 |                   |               |               | under extremely    |
 |                   |               |               | high load, the     |
 |                   |               |               | tcp_output()       |
 |                   |               |               | routine may appear |
 |                   |               |               | to run for         |
 | Reports of        |               | George V.     | extended periods,  |
 | TCP-related       |               | Neville-Neil, | resulting in the   |
 | instability under | Needs testing | Robert        | appearance of a    |
 | extremely high    |               | Watson,       | hang for an        |
 | load; possibly    |               | Scott Long    | extended period    |
 | related to SACK   |               |               | (up to 30          |
 |                   |               |               | minutes), followed |
 |                   |               |               | by recovery. A fix |
 |                   |               |               | for SACK was       |
 |                   |               |               | developed and      |
 |                   |               |               | committed that     |
 |                   |               |               | hopefully corrects |
 |                   |               |               | this problem.      |
 +------------------------------------------------------------------------+

   ----------------------------------------------------------------------

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  Last modified: 2004/11/04 17:49:51
Received on Fri Nov 05 2004 - 07:39:10 UTC

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