Re: serious issue caused by usb device, stalling almost all operations

Sorry, I replied to another message regarding this matter by mistake..

Here is my intended response to the USB issue:

Wow, i mounted my phone last nite and nothing that bad happened to my 
FreeBSD server.  The only negative issue that I had was my Phone reset. 
This definately makes me nervous plugging my phone in now.

Is there any other messages in /var/log/messages??

hbca# dmesg | grep da
rum0: need multicast update callback
da0 at umass-sim0 bus 0 scbus0 target 0 lun 0
da0: <HTC Android Phone 0100> Removable Direct Access SCSI-2 device
da0: 1.000MB/s transfers
da0: Attempt to query device size failed: NOT READY, Medium not present
da1 at umass-sim0 bus 0 scbus0 target 0 lun 1
da1: <HTC Android Phone 0100> Removable Direct Access SCSI-2 device
da1: 1.000MB/s transfers
da1: Attempt to query device size failed: NOT READY, Medium not present
(da0:umass-sim0:0:0:0): lost device
(da0:umass-sim0:0:0:0): removing device entry
(da1:umass-sim0:0:0:1): lost device
(da1:umass-sim0:0:0:1): removing device entry
da0 at umass-sim0 bus 0 scbus0 target 0 lun 0
da0: <HTC Android Phone 0100> Removable Direct Access SCSI-2 device
da0: 1.000MB/s transfers
da0: Attempt to query device size failed: NOT READY, Medium not present
da1 at umass-sim0 bus 0 scbus0 target 0 lun 1
da1: <HTC Android Phone 0100> Removable Direct Access SCSI-2 device
da1: 1.000MB/s transfers
da1: Attempt to query device size failed: NOT READY, Medium not present
(da0:umass-sim0:0:0:0): lost device
(da0:umass-sim0:0:0:0): removing device entry
(da1:umass-sim0:0:0:1): lost device
(da1:umass-sim0:0:0:1): removing device entry
hbca#

On Wed, 20 Oct 2010, Alexander Best wrote:

> hi there,
>
> i'm running HEAD (r213495; amd64). i stumbled upon this severe problem:
>
> after attaching my mobile phone, it simply resets without doing mount or
> anything. however after letting the device come up again it won't show up in
> the console. after detaching it the usb subsystem seemed to have completely
> crashed. but that's not all. the following programs now simply hang without
> producing any output C-C won't do anything:
>
> - dmesg
> - top
> - ps
> - killall
> - camcontrol devlist
> - usbconfig
>
> i cannot even kill the apps, since top and ps aren't working so there's no way
> to find out the PIDs. using 'killall dmesg' e.g. won't work either, since
> killall will also stall.
>
> this is the console output which i could grab with
> 'vidcontrol -H -P < /dev/ttyv0' (since dmesg doesn't work anymore):
>
> ugen3.3: <Samsung> at usbus3
> umass0: <USB Mass Storage Interface> on usbus3
> (probe0:umass-sim0:0:0:0): TEST UNIT READY. CDB: 0 0 0 0 0 0
> (probe0:umass-sim0:0:0:0): CAM status: SCSI Status Error
> (probe0:umass-sim0:0:0:0): SCSI status: Check Condition
> (probe0:umass-sim0:0:0:0): SCSI sense: UNIT ATTENTION asc:28,0 (Not ready to rea
> dy change, medium may have changed)
> da0 at umass-sim0 bus 0 scbus9 target 0 lun 0
> da0: <Samsung SGH-i550 1.0> Removable Direct Access SCSI-0 device
> da0: 40.000MB/s transfers
> da0: 3777MB (7736320 512 byte sectors: 255H 63S/T 481C)
> (da0:umass-sim0:0:0:0): AutoSense failed
> ugen3.3: <Samsung> at usbus3 (disconnected)
> umass0: at uhub8, port 3, addr 3 (disconnected)
> (da0:umass-sim0:0:0:0): AutoSense failed
> (da0:umass-sim0:0:0:0): lost device
> (da0:umass-sim0:0:0:0): Invalidating pack
> (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0xa, scsi status ==
> 0x0
> (da0:umass-sim0:0:0:0): removing device entry
> lock order reversal:
> 1st 0xffffffff80a37d50 GEOM topology (GEOM topology) _at_ /usr/src/sys/geom/label/
> g_label.c:320
> 2nd 0xffffffff808387a0 sysctl lock (sysctl lock) _at_ /usr/src/sys/kern/kern_sysct
> l.c:257
> KDB: stack backtrace:
> db_trace_self_wrapper() at db_trace_self_wrapper+0x35
> kdb_backtrace() at kdb_backtrace+0x4e
> _witness_debugger() at _witness_debugger+0x29
> witness_checkorder() at witness_checkorder+0xad2
> _sx_xlock() at _sx_xlock+0xae
> sysctl_ctx_free() at sysctl_ctx_free+0x2e
> dacleanup() at dacleanup+0x65
> camperiphfree() at camperiphfree+0x152
> cam_periph_release_locked() at cam_periph_release_locked+0x84
> cam_periph_release() at cam_periph_release+0x6d
> daclose() at daclose+0x223
> g_disk_access() at g_disk_access+0x21c
> g_access() at g_access+0x3b7
> g_label_taste() at g_label_taste+0x3be
> g_new_provider_event() at g_new_provider_event+0x145
> one_event() at one_event+0x2d5
> g_run_events() at g_run_events+0xe
> g_event_procbody() at g_event_procbody+0x8b
> fork_exit() at fork_exit+0xfd
> fork_trampoline() at fork_trampoline+0xe
> --- trap 0, rip = 0, rsp = 0xffffff800003ecf0, rbp = 0 ---
>
> cheers.
> alex
>
> -- 
> a13x
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