bug or hardware issue ?

[Andrew Muhametshin]

Mike Tancsa wrote:
> Got this on the serial console.  Any idea if its 
> a bug or a hardware issue. It seems to last about 
> 10 days before barfing.  Nothing too special 
> about the box as it just runs clamav on inbound mail.
>
> vm_page_cache: attempting to cache busy page
>
>
> Fatal trap 12: page fault while in kernel mode
> fault virtual address   = 0x1c
> fault code              = supervisor read, page not present
> instruction pointer     = 0x20:0xc0543c03
> stack pointer           = 0x28:0xe6c0ec50
> frame pointer           = 0x28:0xe6c0ec54
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                          = DPL 0, pres 1, def32 1, gran 1
> processor eflags        = interrupt enabled, resume, IOPL = 0
> current process         = 28 (pagedaemon)
> trap number             = 12
> panic: page fault
> Uptime: 10d15h2m19s
>
> <...>skip<...>
>
> ---Type <return> to continue, or q <return> to quit---
> #7  0xc0543c03 in _mtx_trylock (m=0x0, opts=0, 
> file=0x0, line=0) at /usr/src/sys/kern/kern_mutex.c:428
>          rval = 4
>
> <...>skip<...>
>   

I have dug into a similar problem:
Sometimes (not always), there is a crash of system at use of the
emulator "qemu":

http://www.freebsd.org/cgi/query-pr.cgi?pr=110892

And you have not found out the answer?


Regards,
Andrew R.Muhametshin