Date: Tue, 25 Mar 2003 18:41:50 -0500 (EST) From: John Baldwin <jhb@FreeBSD.org> To: John Baldwin <jhb@FreeBSD.org> Cc: Martin Karlsson <mk-freebsd@bredband.net>, freebsd-current@freebsd.org, Andrew Gallatin <gallatin@cs.duke.edu> Subject: Re: panic: blockable sleep lock (sleep mutex) Giant @ /usr/src/sys/vm/vm_fault.c:206 Message-ID: <XFMail.20030325184150.jhb@FreeBSD.org> In-Reply-To: <XFMail.20030325182018.jhb@FreeBSD.org>
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On 25-Mar-2003 John Baldwin wrote:
>
> On 25-Mar-2003 Andrew Gallatin wrote:
>>
>> Martin Karlsson writes:
>>
>> > #9 0xc02dca88 in calltrap () at {standard input}:96
>> > #10 0xc01e7b0b in panic (fmt=0x0) at /usr/src/sys/kern/kern_shutdown.c:528
>> > #11 0xc020256e in witness_lock (lock=0xc03760c0, flags=8, file=0xc0332416
>> "/usr/src/sys/vm/vm_fault.c", line=206)
>> > at /usr/src/sys/kern/subr_witness.c:604
>> > #12 0xc01e0237 in _mtx_lock_flags (m=0xc03760c0, opts=0, file=0xc0332416
>> "/usr/src/sys/vm/vm_fault.c", line=206) at /usr/src/sys/kern/kern_mutex.c:336
>>
>>
>> It looks like the witness mutex debugging system crashed. This sort
>> of thing tends to happen when the witness data structures become
>> corrupt. A frequent cause of this is a module failing to destroy a
>> mutex.
>>
>> I think the recent addition of the
>>
>> MTX_SYSINIT(linux_osname, &osname_lock, "linux osname", MTX_DEF);
>>
>> could be causing the problem, as I do not see how its getting torn
>> down.
>
> Oh, good catch Drew. My bad it seems :( I'll work up a patch.
http://www.FreeBSD.org/~jhb/patches/linux.patch Similar to Drew's
except that I patched alpha as well. Similarly untested. Apply
with patch -p6 while in /sys. Please let me know if it fixes the
problem.
--
John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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