Messages in this thread | | | Subject | [BUG] NULL pointer dereference | From | Paul Larson <> | Date | 09 Oct 2002 09:01:47 -0500 |
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During some testing I was doing on linux-2.5.41-mm1 I came across the NULL pointer dereference below. I suspect it is also in 2.5.41 vanilla, but I have not been able to reproduce it so far. It was on an 8-way PIII-700, 16 GB ram. I had been running ltp at the time and it had completed. I was hitting tab at the time it happened to get a command line completion in bash.
Unable to handle kernel NULL pointer dereference at virtual address 0000002c printing eip: c01525b5 *pde = 00104001 Oops: 0000
CPU: 0 EIP: 0060:[<c01525b5>] Not tainted EFLAGS: 00010046 EIP is at fasync_helper+0x75/0xf0 eax: c0359198 ebx: 00000000 ecx: 0000002c edx: 0000007e esi: 0000002c edi: 00000000 ebp: cc2682c0 esp: f637bec4 ds: 0068 es: 0068 ss: 0068 Process python (pid: 1253, threadinfo=f637a000 task=f6c8f1a0) Stack: 00000000 f7c0c9bc f7c0c960 ffffffff 00000000 c014dc45 ffffffff cc2682c0 00000000 0000002c f7c0c960 f7ff5620 f7c0c960 f63b8ca0 c014dd83 ffffffff cc2682c0 00000000 cc2682c0 c014453b f7c0c960 cc2682c0 f7ff5760 00000286 Call Trace: [<c014dc45>] pipe_read_fasync+0x45/0x70 [<c014dd83>] pipe_read_release+0x13/0x30 [<c014453b>] __fput+0x2b/0xd0 [<c0142cd9>] filp_close+0x99/0xb0 [<c011c3eb>] put_files_struct+0x4b/0xd0 [<c011cd69>] do_exit+0x109/0x2e0 [<c011e16b>] do_softirq+0x5b/0xc0 [<c01111df>] smp_apic_timer_interrupt+0x10f/0x120 [<c01071d3>] syscall_call+0x7/0xb
Code: 8b 16 85 d2 74 36 90 8d 74 26 00 39 6a 0c 75 22 85 ff 75 ba
Thanks, Paul Larson
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