Re: Boot panic -CURRENT #196643

On Sat, Aug 29, 2009 at 10:00:45PM +0200, Andreas Tobler wrote:
> Kostik Belousov wrote:
> >On Sat, Aug 29, 2009 at 08:32:34PM +0200, Andreas Tobler wrote:
> >>Hello,
> >>
> >>I synced the sources today to #196643.
> >Try 196644.
> 
> [tc:head/src/sys] andreast% svn info
> Path: .
> URL: svn://svn.freebsd.org/base/head/sys
> Repository Root: svn://svn.freebsd.org/base
> Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
> Revision: 196644
> Node Kind: directory
> Schedule: normal
> Last Changed Author: kib
> Last Changed Rev: 196644
> Last Changed Date: 2009-08-29 20:01:02 +0200 (Sat, 29 Aug 2009)
> 
> Still the same, as below.
> 
> But with WITNESS etc. on:
> 
> I get this panic:
> ---
> Trying to mount root from zfs:zroot
> panic: thread_alloc got thread with kstack
> cpuid = 0
> KDB: enter: panic
> [thread pid 1 tid 100002 ]
> Stopped at	kdb_enter+0x3a: movl	$0,kdb_why
Can you show me the backtrace (from ddb) ?

> ---
> 
> >
> >>And built a kernel with WITNESS etc. off.
> >>
> >>My boot partition sits on zfs.
> >>
> >>I get the below panic. Unfortunately I can't bt since the usb keyboard 
> >>ist not functional at this moment.
> >>
> >>---
> >>Trying to mount root from zfs:zroot
> >>spin lock 0x80dccc00 (sched lock 1) held by 0x8595baf0 (tid 100003) too 
> >>long
> >>panic: spin lock held too long
> >>cpuid = 0
> >>KDB: enter: panic
> >>[thread pid 1 tid 100002 ]
> >>Stopped at	kdb_enter+0x3a: movl	$0,kdb_why
> >>---
> >>
> >>Unfortunately I can't say exactly which version the previous, working, 
> >>kernel has. The svn nbr has gone. (I have this subversion:
> >>subversion-freebsd-1.6.5)
> 
> This question is still open.

r196639 will work for you.