Hi, I'm currently stuck with a Kernel OOPS errors which seems to happen when my system is under heavy load. The steps to reproduce the problem are unknown from me.
The bug happens when accessing to the __wake_up_common at the following line: http://elixir.free-electrons.com/linux/v3.0.35/source/kernel/sched.c#L4456 It seems i'm trying to access a task in a workqueue which has been poisoning. I'm wondering if the following calltrace triggers something to you or what could cause this behavior. Best Regards, Sebastien. Unable to handle kernel paging request at virtual address 00100100 pgd = 80004000 [00100100] *pgd=00000000 Internal error: Oops: 17 [#1] PREEMPT SMP Modules linked in: sd8xxx mlan(P) CPU: 3 Tainted: P (3.0.35-rt56-PD13.2.4-Oct-B421 #1) PC is at __wake_up_common+0x78/0x90 LR is at try_to_wake_up+0x5c/0x2f4 pc : [<800c5c64>] lr : [<800cf5f0>] psr: 60000013 sp : ba2ade18 ip : 001000f4 fp : ba2ade44 r10: 00000001 r9 : 000000c3 r8 : 00000001 r7 : ba457e3c r6 : 00000000 r5 : 80166620 r4 : 001000f4 r3 : 001000f4 r2 : 00000000 r1 : 20000013 r0 : 00000000 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c53c7d Table: 4a5b404a DAC: 00000015 Process irq/150-enet (pid: 1156, stack limit = 0xba2ac2f0) Stack: (0xba2ade18 to 0xba2ae000) de00: 8c0272e0 00000001 de20: 8c0272e0 ba457e20 000000c3 00000001 00000001 00002000 bfd16000 0000004a de40: ba2ade64 800ce9b0 000000c3 ba809520 ba5d6c00 ba5d6c80 ba5d6c00 ba77c02e de60: 00000058 8040bf68 ba809520 804e0d8c bfd16000 8072a744 8072a764 ba2adeac de80: 00000152 bfd16000 00000000 00000000 8072a208 80417980 bfd16000 80418b94 dea0: 8077ea60 ba809520 8c026320 8072a764 807161c0 ba809520 ba2adeec ffdf53e0 dec0: 00000800 bfd1706c 00000058 bfd1706c 00000800 8041b49c 4a77c810 800ae6b0 dee0: ba77c020 000007f0 00000002 ba2adee4 bfd16000 bfd16000 ffdf53e0 8032b74c df00: 00000096 00000002 ba809520 8074db9c ba702240 02000000 ffdf53e0 bfd16bcc df20: 00000000 bfd16c58 4a61a020 bfd1706c bfd17488 bfd17490 80716220 8071620c df40: 00000000 ba2ac000 ba2ac000 807161c0 807161c0 bfc18220 00000001 bfc18220 df60: 8072a034 80716220 8071620c 8010f850 ba2ac000 807161c0 bfc1823c 8010f768 df80: bffdfe3c 8010f830 bfc18220 00000008 00000013 bffdfe2c bfc18220 8010f620 dfa0: 00000013 00000000 00000000 00000000 00000000 800edf90 00000000 bfc18220 dfc0: 00000000 00000000 00000000 ba2adfcc ba2adfcc 00000000 00000000 00000000 dfe0: ba2adfe0 ba2adfe0 bffdfe2c 800edf10 800a1368 800a1368 a79596d4 c2e48e91 [<800c5c64>] (__wake_up_common+0x78/0x90) from [<800ce9b0>] (__wake_up_sync_key+0x48/0x64) [<800ce9b0>] (__wake_up_sync_key+0x48/0x64) from [<8040bf68>] (sock_def_readable+0x3c/0x64) [<8040bf68>] (sock_def_readable+0x3c/0x64) from [<804e0d8c>] (packet_rcv+0x2d8/0x3b8) [<804e0d8c>] (packet_rcv+0x2d8/0x3b8) from [<80417980>] (__netif_receive_skb+0x1ac/0x390) [<80417980>] (__netif_receive_skb+0x1ac/0x390) from [<8041b49c>] (netif_receive_skb+0xa4/0xb4) [<8041b49c>] (netif_receive_skb+0xa4/0xb4) from [<8032b74c>] (fec_enet_interrupt+0x4f8/0x8a0) [<8032b74c>] (fec_enet_interrupt+0x4f8/0x8a0) from [<8010f850>] (irq_forced_thread_fn+0x20/0x58) [<8010f850>] (irq_forced_thread_fn+0x20/0x58) from [<8010f768>] (irq_thread+0x148/0x1d8) [<8010f768>] (irq_thread+0x148/0x1d8) from [<800edf90>] (kthread+0x80/0x88) [<800edf90>] (kthread+0x80/0x88) from [<800a1368>] (kernel_thread_exit+0x0/0x8) Code: e51b2028 e2522001 e50b2028 0a000003 (e5b3400c)
