Michael Nottebrock
2005-Jul-06 00:31 UTC
Panic: don't do that ... while unloading snd_ich.ko
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" : "=r"
(td));
(kgdb) bt
#0 0xc04ea796 in doadump () at pcpu.h:160
#1 0xc04eacc0 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:413
#2 0xc04eaf54 in poweroff_wait (junk=0xc067dd2a, howto=-1066935045)
at /usr/src/sys/kern/ker
#3 0xc04c455a in idestroy_dev (dev=0xc337e190)
at /usr/src/sys/kern/kern_conf.c:563
#4 0xc04c4684 in destroy_dev (dev=0xc06d3428)
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=0xc23b65e0)
at /usr/src/sys/kern/subr_bus.c:2301
Previous frame inner to this frame (corrupt stack?)
--
,_, | 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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Greg 'groggy' Lehey
2005-Jul-06 00:47 UTC
Panic: don't do that ... while unloading snd_ich.ko
On Wednesday, 6 July 2005 at 2:31:37 +0200, Michael Nottebrock wrote:> 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 30/3This is a phkism. It's supposed to tell the developer to fix his code. You'll have to look at the code and work out what's wrong. I don't understand how this could get into STABLE, though. Greg -- The virus contained in this message was detected by LEMIS anti-virus. Finger grog@FreeBSD.org for PGP public key. See complete headers for address and phone numbers. -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 187 bytes Desc: not available Url : http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20050706/f264fb5e/attachment.bin