A.P. Lawrence

Best of the Newsgroups: panic trap bios checksum

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From: Bela Lubkin <belal@caldera.com>
Subject: Re: meaning of CheckSum: 0x02 * * Invalid * * in hw output ?
Date: Fri, 20 Dec 2002 14:12:13 GMT References: <862c810.0212180852.2a1e3b3a@posting.google.com> <20021219142815.O10531@mammoth.ca.caldera.com> <862c810.0212200514.753755db@posting.google.com>

Terry Paterson wrote:

> > > I have a server in the field which is occassionally panicing, with a
> > > k_trap (..00E )message.
> > > 
> > > we are trying to have the hardware checked out - running diagnostics
> > > on the RAM, etc ..

> Unexpected trap in kernel mode:
> cr0 0x8001003B     cr2  0x00000040     cr3 0x00002000     tlb  0x00000000
> ss  0x0000C9D0     uesp 0x00000000     efl 0x000C0283     ipl  0x00000000
> cs  0x00000158     eip  0xF00E11D9     err 0x00000000     trap 0x0000000E
> eax 0x00000000     ecx  0x00000020     edx 0xF0843C00     ebx  0xF0876000
> esp 0xE000007C     ebp  0xE0000DC0     esi 0x00000001     edi  0xF0885500
> ds  0x00000160     es   0x00000160     fs  0x00000000     gs   0x00000000
> cpu 0x00000001
> 
> PANIC: k_trap - Kernel mode trap type 0x0000000E
> Cannot dump 196493 pages to dumpdev hd (1/41) : space for only 131072 pages
> Dump not completed
> Warning: aac system coming down.

Well, that's a little bit of info.  One bit is that you have 768MB of
RAM but only 512MB of swap.  That isn't the cause of the panic, but it
prevents a panic dump from being written to /dev/swap, and that makes
further debugging difficult.

You got a trap E at kernel code address 0xF00E11D9 (eip), due to a
reference to address 0x00000040 (cr2).  Now run:

  # echo ts F00E11D9 | crash
  # echo dis F00E11D9-20 20 | crash

and post the results.

>Bela<

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