ping ? 2014-03-03 18:50 GMT+09:00, Namjae Jeon <linkinjeon@xxxxxxxxx>: > Hi Pablo. > > We got the below crash with our kernel(Kernel version: 3.8.13), not > sure exactly what caused this issue. So, sharing the backtrace. > Please help if there is any such known issue or any point which can > help in debugging this issue. > > When we check at the address being referenced it is shown '00200200' - > which is actually the value for LIST_POISON2. > In this code path, POISON is marked after deletion in > function->hlist_nulls_del_rcu() > So, is this a case of deleting, already deleted node? or racy issue ? > > It is grateful that you give me any valuable opinon to find the root cause. > Thanks. > > Unable to handle kernel paging request at virtual address 00200200 > pgd = c0003000 > [00200200] *pgd=8000009e004003, *pmd=00000000 > > CPU: 2 Tainted: P O (3.8.13 #1) > PC is at nf_ct_delete_from_lists+0x50/0xc0 > LR is at _raw_spin_lock_bh+0x2c/0x30 > pc : [<c031d9a0>] lr : [<c038deac>] psr: 20000113 > sp : d90bfe08 ip : d90bfdf0 fp : d90bfe1c > r10: d5b24740 r9 : d5b24740 r8 : c031da10 > r7 : 00000102 r6 : d5b247bc r5 : c054d3dc r4 : d5b24740 > r3 : 00004533 r2 : 00200200 r1 : 00000277 r0 : d5b24740 > Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel > Control: 30c5387d Table: b6b7c800 DAC: 55555555 > Process swapper/2 (pid: 0, stack limit = 0xd90be238) > Stack: (0xd90bfe08 to 0xd90c0000) > fe00: d5b24740 d90be000 d90bfe34 d90bfe20 c031da40 > c031d95c > fe20: d90bfe38 d901c000 d90bfe64 d90bfe38 c004d754 c031da1c 00000000 > d901c000 > fe40: d901c000 d90be000 d5b247bc c0522084 00000000 c031da10 d90bfeac > d90bfe68 > fe60: c004e8c8 c004d720 c04736a0 d901c820 00200200 d90bfe78 d90bfe78 > d90bfe78 > fe80: c0044d24 00000001 d90be000 00000004 c0522084 c0522088 d90be000 > 00000101 > fea0: d90bfefc d90bfeb0 c0045074 c004e72c 0000001e 0000000a c061f568 > 00200040 > fec0: 0000000a 00000002 00000004 00000102 00000008 d90be000 0000001e > 00000000 > fee0: c0554cb4 c0396ab0 d90be000 c0536150 d90bff14 d90bff00 c004576c > c0044f78 > ff00: d90bff18 c051e2f4 d90bff34 d90bff18 c0013ba0 c00456d0 00000010 > fef92000 > ff20: c0531478 d90bff58 d90bff54 d90bff38 c00085fc c0013b34 c0013f18 > 60000013 > ff40: ffffffff d90bff8c d90bffac d90bff58 c038e304 c00085ac ffffffed > 00f52000 > ff60: c053290c 00000000 d90be000 c05321b4 d90be000 c0554748 c0396ab0 > d90be000 > ff80: c0536150 d90bffac d90bffb0 d90bffa0 c0013f2c c0013f18 60000013 > ffffffff > ffa0: d90bffdc d90bffb0 c0014184 c0013ee0 00000000 00000002 00000000 > 30c2387d > ffc0: c0554a1c 9e007000 412fc0f3 00000000 d90bfff4 d90bffe0 c038236c > c001408c > ffe0: c0381870 b7046340 00000000 d90bfff8 9e381888 c0382238 ffffffff > ffffffff > > Backtrace: > [<c031d950>] (nf_ct_delete_from_lists+0x0/0xc0) from [<c031da40>] > (death_by_timeout+0x30/0x68) > r5 90be000 r4 5b24740 > [<c031da10>] (death_by_timeout+0x0/0x68) from [<c004d754>] > (call_timer_fn+0x40/0x158) > r4 901c000 r3 90bfe38 > [<c004d714>] (call_timer_fn+0x0/0x158) from [<c004e8c8>] > (run_timer_softirq+0x1a8/0x280) > [<c004e720>] (run_timer_softirq+0x0/0x280) from [<c0045074>] > (__do_softirq+0x108/0x2cc) > [<c0044f6c>] (__do_softirq+0x0/0x2cc) from [<c004576c>] > (irq_exit+0xa8/0xb0) > [<c00456c4>] (irq_exit+0x0/0xb0) from [<c0013ba0>] (handle_IRQ+0x78/0x108) > r4:c051e2f4 r3 90bff18 > [<c0013b28>] (handle_IRQ+0x0/0x108) from [<c00085fc>] > (gic_handle_irq+0x5c/0xa4) > r6 90bff58 r5:c0531478 r4:fef92000 r3:00000010 > [<c00085a0>] (gic_handle_irq+0x0/0xa4) from [<c038e304>] > (__irq_svc+0x44/0x78) > Exception stack(0xd90bff58 to 0xd90bffa0) > ff40: ffffffed > 00f52000 > ff60: c053290c 00000000 d90be000 c05321b4 d90be000 c0554748 c0396ab0 > d90be000 > ff80: c0536150 d90bffac d90bffb0 d90bffa0 c0013f2c c0013f18 60000013 > ffffffff > r7 90bff8c r6:ffffffff r5:60000013 r4:c0013f18 > [<c0013ed4>] (default_idle+0x0/0x64) from [<c0014184>] > (cpu_idle+0x104/0x168) > [<c0014080>] (cpu_idle+0x0/0x168) from [<c038236c>] > (secondary_start_kernel+0x140/0x160) > [<c038222c>] (secondary_start_kernel+0x0/0x160) from [<9e381888>] > (0x9e381888) > r4:b7046340 r3:c0381870 > Code: e7821003 e5943014 e5942018 e3130001 (e5823000) > -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
