Hi

We did more testing, and managed to get a page fault, which causes a
system freeze.

[17232921.280000] Unable to handle kernel NULL pointer dereference at virtual a8
[17232921.280000]  printing eip:
[17232921.280000] c012a5c5
[17232921.280000] *pde = 00000000
[17232921.280000] Oops: 0000 [#1]
[17232921.280000] Modules linked in: zd1211 ipt_LOG ipt_state iptable_filter ipd
[17232921.280000] CPU:    0
[17232921.280000] EIP:    0060:[<c012a5c5>]    Not tainted VLI
[17232921.280000] EFLAGS: 00210046   (2.6.14.2)
[17232921.280000] EIP is at copy_siginfo_to_user+0x35/0x1e0
[17232921.280000] eax: fffffff2   ebx: 00000000   ecx: c18f7d7c   edx: 00000000
[17232921.280000] esi: c18f7cfc   edi: 00000000   ebp: c040af44   esp: c040af28
[17232921.280000] ds: 007b   es: 007b   ss: 0068
[17232921.280000] Process swapper (pid: 0, threadinfo=c040a000 task=c03abc40)
[17232921.280000] Stack: c040af40 c040af60 c040af38 c0122df5 00000000 c18f7cec
[17232921.280000]        c0102b3a c18f7cfc 00000000 c18f8000 c040afb8 c01032f6
[17232921.280000]        c021ded9 c18f8074 c18f8000 c040afb8 00000000 c040007b
[17232921.280000] Call Trace:
[17232921.280000]  [<c010369f>] show_stack+0x7f/0xa0
[17232921.280000]  [<c0103838>] show_registers+0x158/0x1d0
[17232921.280000]  [<c0103a21>] die+0xd1/0x160
[17232921.280000]  [<c0357481>] do_page_fault+0x3e1/0x620
[17232921.280000]  [<c0103353>] error_code+0x4f/0x54
[17232921.280000]  [<c0102b3a>] setup_rt_frame+0xca/0x2f0

Can anyone help us in analysing this?

Regards
Keith


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