Me Too! Me Too! Same Ooops, same place,
but with Fast! IDE drives instead of SCSI.
I thought for a moment that it might be a hard-to-find
IDE driver bug, but I see that Andreas managed to get it
to happen on a SCSI-only RAID0.
I first noticed this problem with .128/.129/.129+flufix
but that doesn't mean it didn't happen earlier.
In fact, the worrisome issue is that I get silent corruption
of data when WRITING to a filesystem on /dev/md0, and the
Ooops only shows up rarely.
We're talking *SEVERE* data loss here, folks. What broke it???
--
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Andreas Schuldei wrote:
...
> Nov 20 22:07:07 sigrid kernel: md: Setting up md0 as a striped device.
> Nov 20 22:07:07 sigrid kernel: REGISTER_DEV sda5 to md0 done
> Nov 20 22:07:07 sigrid kernel: REGISTER_DEV sdb5 to md0 done
> Nov 20 22:07:07 sigrid kernel: raid0 : Allocating 8 bytes for hash.
> Nov 20 22:07:07 sigrid kernel: md: Loading md0.
...
> Unable to handle kernel NULL Pointer dereference at virtual address 00000008
> current->tss.cr3 = 00101000, %cr3 = 00101000
> *pde = 00000000
> Oops: 0000
> CPU: 1
> EIP: 0010:[<c016e0de>]
> EFLAGS: 00010212
> eax: 00005580 ebx: c4808028 ecx: 00000080 edx: 0000001e
> esi: 00000000 edi: 0015600e ebp: 00000040 esp: c0095de0
> ds: 0018 es: 0018 ss: 0018
> Prosess swapper (pid: 1, process nr: 2, stackpage=c0095000)
> Stack: c3fdd84e 00000009 00000000 c4806000 002ac01c c4804000 00023620 00000000
> 00000004 c016c626 c01fadd4 c3fdd84e c3fdd850 00000002 00000000 c0095e5c
> 00000001 c016aeb1 00000000 c3fdd84e c3fdd850 00000002 0015600e c001b000
...
> >>EIP: c016e0de <raid0_map+a6/13c>
>
> Code: c016e0de <raid0_map+a6/13c>
> Code: c016e0de <raid0_map+a6/13c> 8b 46 08 movl 0x8(%esi),%eax
> Code: c016e0e1 <raid0_map+a9/13c> 03 06 addl (%esi),%eax
> Code: c016e0e3 <raid0_map+ab/13c> 39 c7 cmpl %eax,%edi
> Code: c016e0e5 <raid0_map+ad/13c> 7c 27 jl c016e10e
><raid0_map+d6/13c>
> Code: c016e0e7 <raid0_map+af/13c> 8b 5b 04 movl 0x4(%ebx),%ebx
> Code: c016e0f0 <raid0_map+b8/13c> 85 db testl %ebx,%ebx
> Code: c016e0f2 <raid0_map+ba/13c> 75 1e jne c016e10c
><raid0_map+d4/13c>
> Code: c016e0f4 <raid0_map+bc/13c> 57 pushl %edi
> Code: c016e0f5 <raid0_map+bd/13c> 68 6a dc 00 90 pushl $0x9000dc6a
> Code: c016e100 <raid0_map+c8/13c> 90 nop
> Code: c016e101 <raid0_map+c9/13c> 90 nop
--
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