Date: Sun, 4 Dec 2005 12:20:26 +0200 (IST) From: Evgeny Zislis <kesor@kesor.net> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/89926: if_iwi : sleeping thread owns a non-sleepable lock Message-ID: <200512041020.jB4AKQAo000814@thinky5e.kesor.net> Resent-Message-ID: <200512041030.jB4AU48Z011169@freefall.freebsd.org>
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>Number: 89926 >Category: kern >Synopsis: if_iwi : sleeping thread owns a non-sleepable lock >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Dec 04 10:30:04 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Evgeny Zislis >Release: FreeBSD 6.0-STABLE i386 >Organization: None >Environment: System: FreeBSD thinky5e.kesor.net 6.0-STABLE FreeBSD 6.0-STABLE #: Sun Dec 4 05:09:00 IST 2005 root@thinky5e.kesor.net:/usr/obj/usr/src/sys/THINKY5E.debug i386 Lenovo ThinkPad R50e with Intel 2200BG wifi card >Description: For unknown apparent reasons, expecially when running X and Gnome, the kernel panics. (attached backtrace that leads to if_iwi) >How-To-Repeat: While using kismet with the iwi driver, and X, the system will crash with no apparent reason. >Fix: Kernel backtrace : (kgdb) backtrace #0 doadump () at pcpu.h:165 During symbol reading, Incomplete CFI data; unspecified registers at 0xc05ae853. #1 0xc05aede2 in boot (howto=0x104) at /usr/src/sys/kern/kern_shutdown.c:399 #2 0xc05af158 in panic (fmt=0xc07cae7e "sleeping thread (tid %d) owns a non-sleepable lock") at /usr/src/sys/kern/kern_shutdown.c:555 #3 0xc05d786f in propagate_priority (td=0xc3873000) at /usr/src/sys/kern/subr_turnstile.c:189 #4 0xc05d8612 in turnstile_wait (lock=0xc3a42b6c, owner=0xc3873000) at /usr/src/sys/kern/subr_turnstile.c:628 #5 0xc05a40e7 in _mtx_lock_sleep (m=0xc3a42b6c, tid=0xc3229300, opts=0x0, file=0x0, line=0x0) at /usr/src/sys/kern/kern_mutex.c:555 #6 0xc05a3c9b in _mtx_lock_flags (m=0x0, opts=0x0, file=0xc3d8a29f "/usr/src/sys/modules/iwi/../../dev/iwi/if_iwi.c", line=0x578) at /usr/src/sys/kern/kern_mutex.c:276 #7 0xc3d890e1 in iwi_ioctl (ifp=0xc3a42000, cmd=0xc361bb80, data=0x217 <Address 0x217 out of bounds>) at /usr/src/sys/modules/iwi/../../dev/iwi/if_iwi.c:2115 #8 0xc0594666 in ithread_loop (arg=0xc3221700) at /usr/src/sys/kern/kern_intr.c:547 #9 0xc0593224 in fork_exit (callout=0xc05943f0 <ithread_loop>, arg=0x0, frame=0x0) at /usr/src/sys/kern/kern_fork.c:789 #10 0xc07610dc in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:208 >Release-Note: >Audit-Trail: >Unformatted:
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