Date: Wed, 6 Jul 2005 02:31:37 +0200 From: Michael Nottebrock <lofi@freebsd.org> To: freebsd-stable@freebsd.org Subject: Panic: don't do that ... while unloading snd_ich.ko Message-ID: <200507060231.44255.lofi@freebsd.org>
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Readily reproducable, 5.4-STABLE as of last week.
Kernel messages prior to panic (from memory):
pcm0: unregister: mixer busy
WARNING: Driver mistake: destroy_dev on 30/3
Backtrace:
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#0 0xc04ea796 in doadump () at pcpu.h:160
160 __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td));
(kgdb) bt
#0 0xc04ea796 in doadump () at pcpu.h:160
#1 0xc04eacc0 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:4=
13
#2 0xc04eaf54 in poweroff_wait (junk=3D0xc067dd2a, howto=3D-1066935045)=20
at /usr/src/sys/kern/ker
#3 0xc04c455a in idestroy_dev (dev=3D0xc337e190)=20
at /usr/src/sys/kern/kern_conf.c:563
#4 0xc04c4684 in destroy_dev (dev=3D0xc06d3428)=20
at /usr/src/sys/kern/kern_conf.c:612
#5 0xc07a0f6c in ?? ()
#6 0xc06d3428 in devt_stash ()
#7 0xc2379980 in ?? ()
#8 0xc2379980 in ?? ()
#9 0xc2324200 in ?? ()
#10 0xe96c2c18 in ?? ()
#11 0xc07b0d7e in ?? ()
#12 0xc2379980 in ?? ()
#13 0xc2379980 in ?? ()
#14 0xc2379980 in ?? ()
#15 0xe96c2c30 in ?? ()
#16 0xc04feb37 in device_detach (dev=3D0xc23b65e0)=20
at /usr/src/sys/kern/subr_bus.c:2301
Previous frame inner to this frame (corrupt stack?)
=2D-=20
,_, | Michael Nottebrock | lofi@freebsd.org
(/^ ^\) | FreeBSD - The Power to Serve | http://www.freebsd.org
\u/ | K Desktop Environment on FreeBSD | http://freebsd.kde.org
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