usb/144387: if_run panic

[Hans Petter Selasky]

On Monday 01 March 2010 12:50:27 Alexander Kuznetsov wrote:
> >Number:         144387
> >Category:       usb
> >Synopsis:       if_run panic
> >Confidential:   no
> >Severity:       non-critical
> >Priority:       low
> >Responsible:    freebsd-usb
> >State:          open
> >Quarter:
> >Keywords:
> >Date-Required:
> >Class:          sw-bug
> >Submitter-Id:   current-users
> >Arrival-Date:   Mon Mar 01 12:00:06 UTC 2010
> >Closed-Date:
> >Last-Modified:
> >Originator:     Alexander Kuznetsov
> >Release:        9.0-CURRENT (both i386 and amd64)
> >Organization:
> >Environment:
> >Description:
> 
> if_run causes kernel panic
> 
> run0: device timeout
> panic: mutex run0 not owned at
>  /usr/src/sys/modules/usb/run/../../../dev/usb/wlan/run/if_run.c:3376 cpuid
>  = 0
> KDB: enter: panic
> [ thread pid 0 tid 100068 ]
> Stopped at kdb_enter+0x3d: movq $0,0x6b5b30(%rip)
> db>bt
> Tracing pid 0 tid 100068 td 0xffffff000252d000
> kdb_enter() at kdb_enter+0x3d
> panic() at panic+0x17b
> _mtx_assert() at _mtx_assert+0xdc
> run_usb_timeout_cb() at run_usb_timeout_cb+0x35
> taskqueue_run() at taskqueue_run+0x91
> taskqueue_thread_loop() at taskqueue_thread_loop+0x3f
> fork_exit() at fork_exit+0x12a
> fork_trampoline() at fork_trampoline+0xe
> --- trap 0, rip = 0, rsp = 0xffffff80001bcd30, rbp = 0 ---
> db>
> 
> >How-To-Repeat:
> 
> # kldload if_run
> # ifconfig wlan create wlandev run0 wlanmode hostap
> # ifconfig wlan0 ssid test
> # ifconfig wlan0 inet 192.168.0.10
> [panic after some seconds]
> 
> >Fix:
> >
> >
> >Release-Note:
> >Audit-Trail:
> >Unformatted:

This is a know issue which has been fixed, but not committed to -current yet.

--HPS