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SubjectRe: NFSD die with 2.4.1 (resend with ksymoops)
On Wednesday February 14, wrote:
> Hi all,
> I have a machine with kernel 2.4.1 + acls patch. It exports some volume via
> NFS (installed with RedHat 7.0 + custom 2.4.1 kernel). The underlying
> filesystem is ext2. I tried with NFS v2 and v3 and without ACLs in the
> kernel. results are the same.
> Unable to handle kernel NULL pointer dereference at virtual address 00000000
> 00000000
> *pde = 00000000
> Oops: 0000
> CPU: 0
> EIP: 0010:[acpi_exit+0/-1072693248]
> EFLAGS: 00010286
> eax: 00000000 ebx: c4f5c03c ecx: c091d040 edx: c0173710
> esi: c4f63424 edi: c4f5c03c ebp: c4f5c03c esp: c4f61f38
> ds: 0018 es: 0018 ss: 0018
> Process nfsd (pid: 2690, stackpage=c4f61000)
> Stack: c0173774 c091d040 00008000 c4f63000 c02f9220 c4f5c014 c4f63000
> c091d040
> a1ffc014 c016bdbb c4f63000 c4f5c01c c4f63400 c4f63138 c02f9220
> c4f63490
> c0273e38 c4f63000 c4f5c014 c4f60000 0034fdbb c7f68560 c4f60550
> c4f63400
> Call Trace: [nfssvc_encode_diropres+100/520] [nfsd_dispatch+275/360]
> [svc_process+684/1348] [nfsd+401/760] [kernel_thread+35/48]
> Code: Bad EIP value.
> Using defaults from ksymoops -t elf32-i386 -a i386

This trace seems to make sense, except that nfssvc_encode_diropres
doesn't seem to make any subroutine calls at offset 100 as seems to be

Could you run

echo disassemble nfssvc_encode_diropres | gdb -batch -x /dev/stdin vmlinux

giving it the vmlinux that was running when this oops was produced? and
also tell me exactly what patches you have ontop of 2.4.1 and where to
find them.

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