unknown mtx_assert at /usr/src/sys/x86/x86/io_apic.c:161

Michael Jung mikej at paymentallianceintl.com
Sat Jan 15 01:55:15 UTC 2011


Thanks, I actually didn¹t see the MCA errors on the screen as the system has
reloaded but noted them in the ddb.txt file last night.

The Motherboard, CPU, Memory and PS were replaced today.  I¹ll post back if
this has or not corrected the problem but I suspect you are on target in
that the hardware was defective.  This machine was remote and I found the
fan in the power supply not working, so I¹m suspecting that the CPU was or
other logic was damaged.

Thanks for your reply.


On 1/14/11 4:13 PM, "John Baldwin" <jhb at freebsd.org> wrote:

> On Thursday, January 13, 2011 11:26:46 am Michael Jung wrote:
>> > Links to crash info below.
>> >
> This might be a hardware problem.  The panic you got is a "should never
> happen" panic.  Note that in the code line sourced, the second argument to
> mtx_assert() is MA_OWNED.  The panic is saying that it is some invalid value
> (i.e. something other than MA_OWNED).  Given that is a constant, that's not
> very likely at all barring some hardware glitch.
> You do have a somewhat scary looking machine check logged before your panic:
> MCA: Bank 1, Status 0xd000000000000171
> MCA: Global Cap 0x0000000000000105, Status 0x0000000000000000
> MCA: Vendor "AuthenticAMD", ID 0x20fc2, APIC ID 0
> It is a correctable error, but given the nature of the panic I'd suspect a
> hardware problem.
> mcelog doesn't provide many more details:
> HARDWARE ERROR. This is *NOT* a software problem!
> Please contact your hardware vendor
> CPU 0 1 instruction cache
>        bit62 = error overflow (multiple errors)
>   memory/cache error 'evict mem transaction, instruction transaction, level 1'
> STATUS d000000000000171 MCGSTATUS 0
> CPUID Vendor AMD Family 15 Model 44
> --
> John Baldwin

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