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 <[EMAIL PROTECTED]>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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