Re: 2.6.13 kernel OOPS

[Mikael Pettersson <mikpe@csd.uu.se>]

M.H.VanLeeuwen writes:
 > Hi,
 > 
 > Is this a known problem?
 > 
 > Thanks,
 > Martin
 > 
 > 
 > cat /proc/sys/net/ipv4/conf/lo/rp_filter
 > 
 >  <1>Unable to handle kernel paging request at virtual address 419a91d8
 >  printing eip:
 > c0116644
 > *pde = 00000000
 > Oops: 0000 [#6]
 > Modules linked in:
 > CPU:    0
 > EIP:    0060:[<c0116644>]    Not tainted VLI
 > EFLAGS: 00010246   (2.6.13)
 > EIP is at do_proc_dointvec_conv+0x14/0x40
 > eax: c1b40f28   ebx: 00000000   ecx: 419a91d8   edx: c1b40f24
 > esi: 00001000   edi: 00000001   ebp: 0804d008   esp: c1b40eec
 > ds: 007b   es: 007b   ss: 0068
 > Process cat (pid: 503, threadinfo=c1b40000 task=c22245d0)
 > Stack: c0116731 00000000 00000000 00000000 419a91d8 00000001 00000000 c1b40fbc
 >        c22245d0 c1b656a4 00000000 00000000 00030002 c1b40f0b c2242b84 c1b656a4
 >        c1e12420 0804d008 00000000 c12910e0 c01169a5 0804d008 c1b40f64 c1b40fa4
 > Call Trace:
 >  [<c0116731>] do_proc_dointvec+0xc1/0x320
 >  [<c01169a5>] proc_dointvec+0x15/0x20
 >  [<c0116630>] do_proc_dointvec_conv+0x0/0x40
 >  [<c011637e>] do_rw_proc+0x6e/0x80
 >  [<c01163b0>] proc_readsys+0x0/0x20
 >  [<c01163c0>] proc_readsys+0x10/0x20
 >  [<c014415e>] vfs_read+0x7e/0x140
 >  [<c01444ac>] sys_read+0x3c/0x70
 >  [<c0102539>] syscall_call+0x7/0xb
 > Code: 00 00 83 c4 0c 89 c8 5b 5e 5f 5d c3 8d 74 26 00 8d bc 27 00 00 00 00 83 7c 24 04 00 74 0d 8b 00 85 c0 75 18 8b 02 89 01 31 c0 c3 <8b> 09 85 c9 78 16 c7 00 00 00 00 00 31 c0 89 0a c3 8b 02 f7 d8
 > 
 > 
 > bash-2.05$ /bld/linux-2.6.13/scripts/ver_linux
 > If some fields are empty or look unusual you may have an old version.
 > Compare to the current minimal requirements in Documentation/Changes.
 > 
 > Linux shadow 2.6.12 #1 SMP Sat Jun 18 09:36:33 CDT 2005 i686 unknown unknown GNU/Linux
 > 
 > Gnu C                  4.0.0

Sure looks a lot like the old gcc-4.0.0 miscompilation bug.
Change to gcc-4.0.1 or gcc-3.4.4.
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