>> It's crashing in the kernel, so it should be reported as a kernel issue. >> If you include the full oops in a reply, I can take a look. Hi Jens, Thanks for the quick response. I have included a few crash (separate by ===== ), let me know if you can tell anything from it, or, need me to reproduce again. crash> log .... sd 2:0:0:1: Attached scsi generic sg2 type 0 Unable to handle kernel paging request at ffffa3fb09d94000 RIP: [<ffffffff8000873a>] __handle_mm_fault+0xcf/0xe5c PGD 0 Oops: 0000 [1] SMP last sysfs file: /block/sdb/stat CPU 0 Modules linked in: ib_iser(U) iscsi_tcp(U) libiscsi(U) scsi_transport_iscsi(U) autofs4 hidp rfcomm l2cap bluetooth lockd(U) sunrpc(U) rdma_ucm(U) qlgc_vnic(U) ib_sdp(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ipoib(U) ipoib_helper(U) ib_cm(U) ib_sa(U) ipv6 xfrm_nalgo crypto_api ib_uverbs(U) ib_umad(U) iw_nes(U) iw_cxgb3(U) cxgb3(U) ib_ipath(U) mlx4_ib(U) ib_mthca(U) ib_mad(U) ib_core(U) dm_multipath scsi_dh video hwmon backlight sbs i2c_ec i2c_core button battery asus_acpi acpi_memhotplug ac parport_pc lp parport sg tg3 libphy mlx4_core(U) shpchp pcspkr serio_raw dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod ata_piix libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd Pid: 8637, comm: fio Tainted: G 2.6.18-128.el5 #1 RIP: 0010:[<ffffffff8000873a>] [<ffffffff8000873a>] __handle_mm_fault+0xcf/0xe5c RSP: 0018:ffff810067ebbc18 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffa3fb09d94000 RCX: 0000000000000001 RDX: ffffa3fb09d94000 RSI: ffff810067b011e8 RDI: ffff81007df2e100 RBP: ffff810000000000 R08: 0000000000000000 R09: 0000000000000247 R10: ffff81007b103bc0 R11: 000000004b703a70 R12: 00003ffffffff000 R13: ffff810067ebbda8 R14: ffff810067b011e8 R15: ffff810066dbe040 FS: 00002b33483fd0f0(0000) GS:ffffffff803ac000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffffa3fb09d94000 CR3: 00000000672e6000 CR4: 00000000000006e0 Process fio (pid: 8637, threadinfo ffff810067eba000, task ffff810066dbe040) Stack: ffff810067bbd0a8 0000000100000004 0000000018ef0600 ffff81007df2e100 0000000000000400 00000000000085d4 0000000000800010 ffffffff8001bd3d ffff810066dbe230 0000000480034508 ffff810067eb8ce8 0000000000000007 Call Trace: [<ffffffff8001bd3d>] generic_make_request+0x1d2/0x1e9 [<ffffffff80066b9a>] do_page_fault+0x4cb/0x830 [<ffffffff800dd928>] bio_set_pages_dirty+0x23/0x38 [<ffffffff8005be48>] blk_backing_dev_unplug+0x54/0x58 [<ffffffff80089c4a>] dequeue_task+0x18/0x37 [<ffffffff8005dde9>] error_exit+0x0/0x84 [<ffffffff80061e03>] copy_user_generic+0x8f/0x16c [<ffffffff800ea594>] sys_io_getevents+0x32b/0x3b0 [<ffffffff800e9a3b>] timeout_func+0x0/0x10 [<ffffffff8008a461>] default_wake_function+0x0/0xe [<ffffffff8005d28d>] tracesys+0xd5/0xe0 Code: 48 83 3b 00 75 1a 48 8b 54 24 10 48 8b 7c 24 18 48 89 de e8 RIP [<ffffffff8000873a>] __handle_mm_fault+0xcf/0xe5c RSP <ffff810067ebbc18> crash> bt PID: 8637 TASK: ffff810066dbe040 CPU: 0 COMMAND: "fio" #0 [ffff810067ebb970] crash_kexec at ffffffff800aaa0c #1 [ffff810067ebba30] __die at ffffffff8006520f #2 [ffff810067ebba70] do_page_fault at ffffffff80066e1c #3 [ffff810067ebbb60] error_exit at ffffffff8005dde9 [exception RIP: __handle_mm_fault+207] RIP: ffffffff8000873a RSP: ffff810067ebbc18 RFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffa3fb09d94000 RCX: 0000000000000001 RDX: ffffa3fb09d94000 RSI: ffff810067b011e8 RDI: ffff81007df2e100 RBP: ffff810000000000 R8: 0000000000000000 R9: 0000000000000247 R10: ffff81007b103bc0 R11: 000000004b703a70 R12: 00003ffffffff000 R13: ffff810067ebbda8 R14: ffff810067b011e8 R15: ffff810066dbe040 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #4 [ffff810067ebbc50] generic_make_request at ffffffff8001bd3d #5 [ffff810067ebbcf0] bio_set_pages_dirty at ffffffff800dd928 #6 [ffff810067ebbd10] blk_backing_dev_unplug at ffffffff8005be48 #7 [ffff810067ebbda0] error_exit at ffffffff8005dde9 [exception RIP: copy_user_generic+143] RIP: ffffffff80061e03 RSP: ffff810067ebbe58 RFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000004 RDX: 0000000000000020 RSI: ffff810067ebbf18 RDI: 0000000018ef0600 RBP: 0000000000000001 R8: 0000000000000000 R9: 0000000000000247 R10: ffff81007b103bc0 R11: 000000004b703a70 R12: ffff810068253340 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #8 [ffff810067ebbe60] sys_io_getevents at ffffffff800ea594 #9 [ffff810067ebbf80] tracesys at ffffffff8005d28d (via system_call) RIP: 00002b33481fb5b4 RSP: 00007fff628b9c10 RFLAGS: 00000246 RAX: ffffffffffffffda RBX: ffffffff8005d28d RCX: ffffffffffffffff RDX: 0000000000000001 RSI: 0000000000000001 RDI: 00002b334c8df000 RBP: 0000000000000001 R8: 0000000000000000 R9: 0000000000000000 R10: 0000000018ef0600 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000001 R15: 00007fff628b9c50 ORIG_RAX: 00000000000000d0 CS: 0033 SS: 002b ================================================================== crash> log sd 2:0:0:1: Attached scsi disk sdb sd 2:0:0:1: Attached scsi generic sg2 type 0 list_del corruption. prev->next should be ffff810061d24548, but was 29b63c9ee4946311 ----------- [cut here ] --------- [please bite here ] --------- Kernel BUG at lib/list_debug.c:65 invalid opcode: 0000 [1] SMP last sysfs file: /block/sdb/stat CPU 0 Modules linked in: ib_iser(U) iscsi_tcp(U) libiscsi(U) scsi_transport_iscsi(U) autofs4 hidp rfcomm l2cap bluetooth lockd(U) sunrpc(U) rdma_ucm(U) qlgc_vnic(U) ib_sdp(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ipoib(U) ipoib_helper(U) ib_cm(U) ib_sa(U) ipv6 xfrm_nalgo crypto_api ib_uverbs(U) ib_umad(U) iw_nes(U) iw_cxgb3(U) cxgb3(U) ib_ipath(U) mlx4_ib(U) ib_mthca(U) ib_mad(U) ib_core(U) dm_multipath scsi_dh video hwmon backlight sbs i2c_ec i2c_core button battery asus_acpi acpi_memhotplug ac parport_pc lp parport sg pcspkr tg3 serio_raw mlx4_core(U) libphy shpchp dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod ata_piix libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd Pid: 0, comm: swapper Tainted: G 2.6.18-128.el5 #1 RIP: 0010:[<ffffffff8014c5a3>] [<ffffffff8014c5a3>] list_del+0x21/0x71 RSP: 0018:ffffffff80425d30 EFLAGS: 00010082 RAX: 0000000000000058 RBX: ffff810061d24548 RCX: ffffffff802f7aa8 RDX: ffffffff802f7aa8 RSI: 0000000000000000 RDI: ffffffff802f7aa0 RBP: ffff8100606cf200 R08: ffffffff802f7aa8 R09: 0000000000000046 R10: 0000000000000001 R11: ffffffff80161742 R12: ffff810061d24548 R13: 0000000000000800 R14: 0000000000000000 R15: 0000000000000213 FS: 0000000000000000(0000) GS:ffffffff803ac000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 00002afdc88d3000 CR3: 000000006230e000 CR4: 00000000000006e0 Process swapper (pid: 0, threadinfo ffffffff803dc000, task ffffffff802eeae0) Stack: ffff810061d24480 ffffffff800e993e ffff810061d24480 ffff8100606cf200 ffff8100606cf268 ffffffff800e9e24 0000000000000282 0000000000000000 ffff8100624f0400 ffff8100624f071c 0000000000000246 0000000000000800 Call Trace: <IRQ> [<ffffffff800e993e>] __aio_put_req+0x4a/0x117 [<ffffffff800e9e24>] aio_complete+0x18c/0x1c8 [<ffffffff800ee095>] dio_bio_end_aio+0x9f/0xbf [<ffffffff8002ca64>] __end_that_request_first+0x265/0x5df [<ffffffff88079fb4>] :scsi_mod:scsi_end_request+0x27/0xcd [<ffffffff8807a1a8>] :scsi_mod:scsi_io_completion+0x14e/0x324 [<ffffffff880a67cd>] :sd_mod:sd_rw_intr+0x21d/0x257 [<ffffffff8807a43d>] :scsi_mod:scsi_device_unbusy+0x67/0x81 [<ffffffff800376ff>] blk_done_softirq+0x5f/0x6d [<ffffffff80011fbc>] __do_softirq+0x89/0x133 [<ffffffff8005e2fc>] call_softirq+0x1c/0x28 [<ffffffff8006cada>] do_softirq+0x2c/0x85 [<ffffffff8006c962>] do_IRQ+0xec/0xf5 [<ffffffff80056be3>] mwait_idle+0x0/0x4a [<ffffffff8005d615>] ret_from_intr+0x0/0xa <EOI> [<ffffffff80056c19>] mwait_idle+0x36/0x4a [<ffffffff80048d19>] cpu_idle+0x95/0xb8 [<ffffffff803e7801>] start_kernel+0x220/0x225 [<ffffffff803e722f>] _sinittext+0x22f/0x236 Code: 0f 0b 68 3e 62 2a 80 c2 41 00 48 8b 03 48 8b 50 08 48 39 da RIP [<ffffffff8014c5a3>] list_del+0x21/0x71 RSP <ffffffff80425d30> crash> bt PID: 0 TASK: ffffffff802eeae0 CPU: 0 COMMAND: "swapper" #0 [ffffffff80425a90] crash_kexec at ffffffff800aaa0c #1 [ffffffff80425b50] __die at ffffffff8006520f #2 [ffffffff80425b90] die at ffffffff8006bc17 #3 [ffffffff80425bc0] do_invalid_op at ffffffff8006c1d7 #4 [ffffffff80425c80] error_exit at ffffffff8005dde9 [exception RIP: list_del+33] RIP: ffffffff8014c5a3 RSP: ffffffff80425d30 RFLAGS: 00010082 RAX: 0000000000000058 RBX: ffff810061d24548 RCX: ffffffff802f7aa8 RDX: ffffffff802f7aa8 RSI: 0000000000000000 RDI: ffffffff802f7aa0 RBP: ffff8100606cf200 R8: ffffffff802f7aa8 R9: 0000000000000046 R10: 0000000000000001 R11: ffffffff80161742 R12: ffff810061d24548 R13: 0000000000000800 R14: 0000000000000000 R15: 0000000000000213 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #5 [ffffffff80425d38] __aio_put_req at ffffffff800e993e #6 [ffffffff80425d58] aio_complete at ffffffff800e9e24 #7 [ffffffff80425d98] dio_bio_end_aio at ffffffff800ee095 #8 [ffffffff80425dc8] __end_that_request_first at ffffffff8002ca64 #9 [ffffffff80425e58] scsi_io_completion at ffffffff8807a1a8 #10 [ffffffff80425eb8] sd_rw_intr at ffffffff880a67cd #11 [ffffffff80425f18] blk_done_softirq at ffffffff800376ff #12 [ffffffff80425f38] __do_softirq at ffffffff80011fbc #13 [ffffffff80425f68] call_softirq at ffffffff8005e2fc #14 [ffffffff80425f80] do_softirq at ffffffff8006cada #15 [ffffffff80425f90] do_IRQ at ffffffff8006c962 --- <IRQ stack> --- #16 [ffffffff803ddee8] ret_from_intr at ffffffff8005d615 [exception RIP: mwait_idle+54] RIP: ffffffff80056c19 RSP: ffffffff803ddf90 RFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000090000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff802f0658 RBP: ffffffff802eecd0 R8: ffffffff803dc000 R9: 000000000000003f R10: ffff81005e5ed0c0 R11: 0000000000000050 R12: 00000000005f44fb R13: 0000008ef40d85b4 R14: ffff810037fd9080 R15: ffffffff802eeae0 ORIG_RAX: ffffffffffffffbd CS: 0010 SS: 0018 #17 [ffffffff803ddf90] cpu_idle at ffffffff80048d19 ===================================================== crash> log sd 2:0:0:1: Attached scsi generic sg2 type 0 stack segment: 0000 [1] SMP last sysfs file: /block/sdb/stat CPU 0 Modules linked in: ib_iser(U) iscsi_tcp(U) libiscsi(U) scsi_transport_iscsi(U) autofs4 hidp rfcomm l2cap bluetooth lockd(U) sunrpc(U) rdma_ucm(U) qlgc_vnic(U) ib_sdp(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ipoib(U) ipoib_helper(U) ib_cm(U) ib_sa(U) ipv6 xfrm_nalgo crypto_api ib_uverbs(U) ib_umad(U) iw_nes(U) iw_cxgb3(U) cxgb3(U) ib_ipath(U) mlx4_ib(U) ib_mthca(U) ib_mad(U) ib_core(U) dm_multipath scsi_dh video hwmon backlight sbs i2c_ec i2c_core button battery asus_acpi acpi_memhotplug ac parport_pc lp parport sg mlx4_core(U) serio_raw pcspkr tg3 shpchp libphy dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod ata_piix libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd Pid: 0, comm: swapper Tainted: G 2.6.18-128.el5 #1 RIP: 0010:[<ffffffff886940fe>] [<ffffffff886940fe>] :ib_iser:iser_snd_completion+0x1d/0xf7 RSP: 0018:ffffffff80425e90 EFLAGS: 00010297 RAX: 0000000000000000 RBX: ffff810068092440 RCX: 0000000000000000 RDX: 00000000a03c0000 RSI: 0000000000000286 RDI: ffff810068092340 RBP: 60c6a2c052d4011f R08: ffffffff803dc000 R09: 0000000000000000 R10: 0000000000000042 R11: 0000000000000000 R12: ffff810068092340 R13: 000000000000000a R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffffffff803ac000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 00002ada14c6e000 CR3: 0000000068ae5000 CR4: 00000000000006e0 Process swapper (pid: 0, threadinfo ffffffff803dc000, task ffffffff802eeae0) Stack: ffff81006b97f860 ffff810068092340 ffff81006e9a0800 000000000000000a 0000000000000000 ffffffff886934f2 ffff810068092340 0000008000000000 0000004c7c078780 ffff81006b850600 0000000000000000 0002000000000000 Call Trace: <IRQ> [<ffffffff886934f2>] :ib_iser:iser_cq_tasklet_fn+0x4e/0x14f [<ffffffff800923c3>] tasklet_action+0x89/0xfd [<ffffffff80011fbc>] __do_softirq+0x89/0x133 [<ffffffff8005e2fc>] call_softirq+0x1c/0x28 [<ffffffff8006cada>] do_softirq+0x2c/0x85 [<ffffffff8006c962>] do_IRQ+0xec/0xf5 [<ffffffff80056be3>] mwait_idle+0x0/0x4a [<ffffffff8005d615>] ret_from_intr+0x0/0xa <EOI> [<ffffffff80056c19>] mwait_idle+0x36/0x4a [<ffffffff80048d19>] cpu_idle+0x95/0xb8 [<ffffffff803e7801>] start_kernel+0x220/0x225 [<ffffffff803e722f>] _sinittext+0x22f/0x236 Code: 4c 8b 75 00 4d 8b 2e 7e 18 48 89 da 48 c7 c6 a0 63 69 88 48 RIP [<ffffffff886940fe>] :ib_iser:iser_snd_completion+0x1d/0xf7 RSP <ffffffff80425e90> crash> bt PID: 0 TASK: ffffffff802eeae0 CPU: 0 COMMAND: "swapper" #0 [ffffffff80426de0] crash_kexec at ffffffff800aaa0c #1 [ffffffff80426ea0] __die at ffffffff8006520f #2 [ffffffff80426ee0] die at ffffffff8006bc17 #3 [ffffffff80426f10] do_stack_segment at ffffffff8006c564 #4 [ffffffff80426f50] stack_segment at ffffffff8005e221 [exception RIP: iser_snd_completion+29] RIP: ffffffff886940fe RSP: ffffffff80425e90 RFLAGS: 00010297 RAX: 0000000000000000 RBX: ffff810068092440 RCX: 0000000000000000 RDX: 00000000a03c0000 RSI: 0000000000000286 RDI: ffff810068092340 RBP: 60c6a2c052d4011f R8: ffffffff803dc000 R9: 0000000000000000 R10: 0000000000000042 R11: 0000000000000000 R12: ffff810068092340 R13: 000000000000000a R14: 0000000000000000 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 --- <exception stack> --- #5 [ffffffff80425e90] iser_snd_completion at ffffffff886940fe #6 [ffffffff80425eb8] iser_cq_tasklet_fn at ffffffff886934f2 #7 [ffffffff80425f18] tasklet_action at ffffffff800923c3 #8 [ffffffff80425f38] __do_softirq at ffffffff80011fbc #9 [ffffffff80425f68] call_softirq at ffffffff8005e2fc #10 [ffffffff80425f80] do_softirq at ffffffff8006cada #11 [ffffffff80425f90] do_IRQ at ffffffff8006c962 --- <IRQ stack> --- #12 [ffffffff803ddee8] ret_from_intr at ffffffff8005d615 [exception RIP: mwait_idle+54] RIP: ffffffff80056c19 RSP: ffffffff803ddf90 RFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000090000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff802f0658 RBP: ffffffff802eecd0 R8: ffffffff803dc000 R9: 000000000000003f R10: ffff81006a3ef1c0 R11: ffff810068b03ee8 R12: 00000000000384db R13: 00000102e7100b0e R14: ffff810037fd9080 R15: ffffffff802eeae0 ORIG_RAX: ffffffffffffffbd CS: 0010 SS: 0018 #13 [ffffffff803ddf90] cpu_idle at ffffffff80048d19 =========================================================== crash> log sd 4:0:0:1: Attached scsi disk sdb sd 4:0:0:1: Attached scsi generic sg3 type 0 NMI Watchdog detected LOCKUP on CPU 2 CPU 2 Modules linked in: ib_iser(U) iscsi_tcp(U) libiscsi(U) scsi_transport_iscsi(U) autofs4 hidp rfcomm l2cap bluetooth lockd(U) sunrpc(U) cpufreq_ondemand acpi_cpufreq freq_table rdma_ucm(U) qlgc_vnic(U) ib_sdp(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ipoib(U) ipoib_helper(U) ib_cm(U) ib_sa(U) ipv6 xfrm_nalgo crypto_api ib_uverbs(U) ib_umad(U) iw_nes(U) iw_cxgb3(U) cxgb3(U) ib_ipath(U) mlx4_ib(U) ib_mthca(U) ib_mad(U) ib_core(U) dm_multipath scsi_dh video hwmon backlight sbs i2c_ec button battery asus_acpi acpi_memhotplug ac parport_pc lp parport snd_hda_intel snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device sr_mod snd_pcm_oss cdrom snd_mixer_oss fio_driver(PU) shpchp snd_pcm i2c_i801 pcspkr sg snd_timer snd_page_alloc snd_hwdep snd serio_raw i2c_core e1000e soundcore fio_port(PU) mlx4_core(U) dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod ata_piix libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd Pid: 0, comm: swapper Tainted: P 2.6.18-128.el5 #1 RIP: 0010:[<ffffffff80064cc0>] [<ffffffff80064cc0>] .text.lock.spinlock+0xe/0x30 RSP: 0018:ffff810104787d98 EFLAGS: 00000086 RAX: 0000000000000246 RBX: 0000000000000000 RCX: ffff8101093c3340 RDX: 0000000000000063 RSI: ffff8101093c3340 RDI: ffff81010915b71c RBP: ffff81010915b400 R08: 0000000000000286 R09: ffff81010a577800 R10: ffff810110523800 R11: ffffffff800449ab R12: ffff81010915b71c R13: ffff810108283708 R14: 0000000000000800 R15: 0000000000001800 FS: 0000000000000000(0000) GS:ffff81010475fe40(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 000000000040e000 CR3: 00000001079d0000 CR4: 00000000000006e0 Process swapper (pid: 0, threadinfo ffff810104780000, task ffff810104760080) Stack: ffffffff800ee02d ffff8101080e235c 0000000000000000 ffff8101093c3340 ffff8101388ff340 ffff810108283708 ffffffff8002ca64 ffff8101388ff340 0000000000000001 0000000000000000 0000000000000286 0000000000000001 Call Trace: <IRQ> [<ffffffff800ee02d>] dio_bio_end_aio+0x37/0xbf [<ffffffff8002ca64>] __end_that_request_first+0x265/0x5df [<ffffffff88079fb4>] :scsi_mod:scsi_end_request+0x27/0xcd [<ffffffff8807a1a8>] :scsi_mod:scsi_io_completion+0x14e/0x324 [<ffffffff880a67cd>] :sd_mod:sd_rw_intr+0x21d/0x257 [<ffffffff8807a43d>] :scsi_mod:scsi_device_unbusy+0x67/0x81 [<ffffffff800376ff>] blk_done_softirq+0x5f/0x6d [<ffffffff80011fbc>] __do_softirq+0x89/0x133 [<ffffffff8005e2fc>] call_softirq+0x1c/0x28 [<ffffffff8006cada>] do_softirq+0x2c/0x85 [<ffffffff8006c962>] do_IRQ+0xec/0xf5 [<ffffffff8005d615>] ret_from_intr+0x0/0xa <EOI> [<ffffffff8018d192>] acpi_processor_idle+0x275/0x43a [<ffffffff8018d188>] acpi_processor_idle+0x26b/0x43a [<ffffffff8018cf1d>] acpi_processor_idle+0x0/0x43a [<ffffffff8018cf1d>] acpi_processor_idle+0x0/0x43a [<ffffffff80048d19>] cpu_idle+0x95/0xb8 [<ffffffff80076be6>] start_secondary+0x45a/0x469 Code: 83 3f 00 7e f9 e9 f9 fe ff ff f3 90 83 3f 00 7e f9 e9 f8 fe BUG: warning at arch/x86_64/kernel/crash.c:148/nmi_shootdown_cpus() (Tainted: P ) Call Trace: <NMI> [<ffffffff80079d56>] machine_crash_shutdown+0xaa/0xf3 [<ffffffff800aaa00>] crash_kexec+0xcc/0xe8 [<ffffffff800449ab>] mempool_free_slab+0x0/0xe [<ffffffff80064cc0>] .text.lock.spinlock+0xe/0x30 [<ffffffff8006535d>] die_nmi+0x46/0xa3 [<ffffffff80065ac3>] nmi_watchdog_tick+0x157/0x1d3 [<ffffffff800656e1>] default_do_nmi+0x81/0x225 [<ffffffff8006594e>] do_nmi+0x43/0x61 [<ffffffff80064fa7>] nmi+0x7f/0x88 [<ffffffff800449ab>] mempool_free_slab+0x0/0xe [<ffffffff80064cc0>] .text.lock.spinlock+0xe/0x30 <<EOE>> <IRQ> [<ffffffff800ee02d>] dio_bio_end_aio+0x37/0xbf [<ffffffff8002ca64>] __end_that_request_first+0x265/0x5df [<ffffffff88079fb4>] :scsi_mod:scsi_end_request+0x27/0xcd [<ffffffff8807a1a8>] :scsi_mod:scsi_io_completion+0x14e/0x324 [<ffffffff880a67cd>] :sd_mod:sd_rw_intr+0x21d/0x257 [<ffffffff8807a43d>] :scsi_mod:scsi_device_unbusy+0x67/0x81 [<ffffffff800376ff>] blk_done_softirq+0x5f/0x6d [<ffffffff80011fbc>] __do_softirq+0x89/0x133 [<ffffffff8005e2fc>] call_softirq+0x1c/0x28 [<ffffffff8006cada>] do_softirq+0x2c/0x85 [<ffffffff8006c962>] do_IRQ+0xec/0xf5 [<ffffffff8005d615>] ret_from_intr+0x0/0xa <EOI> [<ffffffff8018d192>] acpi_processor_idle+0x275/0x43a [<ffffffff8018d188>] acpi_processor_idle+0x26b/0x43a [<ffffffff8018cf1d>] acpi_processor_idle+0x0/0x43a [<ffffffff8018cf1d>] acpi_processor_idle+0x0/0x43a [<ffffffff80048d19>] cpu_idle+0x95/0xb8 [<ffffffff80076be6>] start_secondary+0x45a/0x469 crash> bt PID: 0 TASK: ffff810104760080 CPU: 2 COMMAND: "swapper" #0 [ffff810104788dc0] crash_kexec at ffffffff800aaa0c #1 [ffff810104788e80] die_nmi at ffffffff8006535d #2 [ffff810104788ea0] nmi_watchdog_tick at ffffffff80065ac3 #3 [ffff810104788ef0] default_do_nmi at ffffffff800656e1 #4 [ffff810104788f40] do_nmi at ffffffff8006594e #5 [ffff810104788f50] nmi at ffffffff80064fa7 [exception RIP: .text.lock.spinlock+14] RIP: ffffffff80064cc0 RSP: ffff810104787d98 RFLAGS: 00000086 RAX: 0000000000000246 RBX: 0000000000000000 RCX: ffff8101093c3340 RDX: 0000000000000063 RSI: ffff8101093c3340 RDI: ffff81010915b71c RBP: ffff81010915b400 R8: 0000000000000286 R9: ffff81010a577800 R10: ffff810110523800 R11: ffffffff800449ab R12: ffff81010915b71c R13: ffff810108283708 R14: 0000000000000800 R15: 0000000000001800 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 --- <exception stack> --- #6 [ffff810104787d98] .text.lock.spinlock at ffffffff80064cc0 (via _spin_lock_irqsave) #7 [ffff810104787d98] dio_bio_end_aio at ffffffff800ee02d #8 [ffff810104787dc8] __end_that_request_first at ffffffff8002ca64 #9 [ffff810104787e58] scsi_io_completion at ffffffff8807a1a8 #10 [ffff810104787eb8] sd_rw_intr at ffffffff880a67cd #11 [ffff810104787f18] blk_done_softirq at ffffffff800376ff #12 [ffff810104787f38] __do_softirq at ffffffff80011fbc #13 [ffff810104787f68] call_softirq at ffffffff8005e2fc #14 [ffff810104787f80] do_softirq at ffffffff8006cada #15 [ffff810104787f90] do_IRQ at ffffffff8006c962 --- <IRQ stack> --- #16 [ffff810104781df8] ret_from_intr at ffffffff8005d615 [exception RIP: acpi_processor_idle+629] RIP: ffffffff8018d192 RSP: ffff810104781ea8 RFLAGS: 00000282 RAX: ffff810104781fd8 RBX: ffff81013baf5960 RCX: 0000000000000003 RDX: ffff81013baf5800 RSI: 0000000000000082 RDI: ffffffff8049fd6c RBP: ffff810104781ee8 R8: ffff810104780000 R9: ffff810104781ecc R10: 0000000000000046 R11: ffff810104781ee8 R12: ffff810107cb9880 R13: 0000000010008040 R14: ffff810107cb9880 R15: ffff810107cb9880 ORIG_RAX: ffffffffffffff85 CS: 0010 SS: 0018 #17 [ffff810104781ea0] acpi_processor_idle at ffffffff8018d188 #18 [ffff810104781ef0] cpu_idle at ffffffff80048d19 ============================================================= crash> log sd 4:0:0:1: Attached scsi disk sdb sd 4:0:0:1: Attached scsi generic sg3 type 0 __end_that: dev sdb: flags = REQ_SORTED REQ_CMD REQ_STARTED REQ_DONTPREP REQ_ELVPRIV sector 756, nr/cnr 4/4 bio ffff8101095435c0, biotail ffff8101095435c0, buffer 0000000000000000, data 0000000000000000, len 0 __end_that_request_first: bio idx 57565 >= vcnt 3573 general protection fault: 0000 [1] SMP last sysfs file: /block/sdb/stat CPU 2 Modules linked in: ib_iser(U) iscsi_tcp(U) libiscsi(U) scsi_transport_iscsi(U) autofs4 hidp rfcomm l2cap bluetooth lockd(U) sunrpc(U) cpufreq_ondemand acpi_cpufreq freq_table rdma_ucm(U) qlgc_vnic(U) ib_sdp(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ipoib(U) ipoib_helper(U) ib_cm(U) ib_sa(U) ipv6 xfrm_nalgo crypto_api ib_uverbs(U) ib_umad(U) iw_nes(U) iw_cxgb3(U) cxgb3(U) ib_ipath(U) mlx4_ib(U) ib_mthca(U) ib_mad(U) ib_core(U) dm_multipath scsi_dh video hwmon backlight sbs i2c_ec button battery asus_acpi acpi_memhotplug ac parport_pc lp parport snd_hda_intel snd_seq_dummy snd_seq_oss fio_driver(PU) snd_seq_midi_event snd_seq fio_port(PU) snd_seq_device sr_mod snd_pcm_oss i2c_i801 e1000e cdrom snd_mixer_oss i2c_core shpchp snd_pcm serio_raw pcspkr snd_timer snd_page_alloc snd_hwdep snd soundcore mlx4_core(U) sg dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod ata_piix libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd Pid: 3695, comm: fio Tainted: P 2.6.18-128.el5 #1 RIP: 0010:[<ffffffff8002cc0e>] [<ffffffff8002cc0e>] __end_that_request_first+0x40f/0x5df RSP: 0018:ffff810104787dd0 EFLAGS: 00010202 RAX: 00000000000e0dd0 RBX: 0000000000000000 RCX: a0a6be50cb5fe143 RDX: ffff8101095435c0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8101095435c0 R08: ffffffff802f7aa8 R09: 0000000000000046 R10: ffff810104787a70 R11: 0000000000000080 R12: ffff81010892d968 R13: ffff810107c87e78 R14: 0000000000000000 R15: 0000000000000800 FS: 00002b7ea90760f0(0000) GS:ffff81010475fe40(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000040e000 CR3: 0000000106eff000 CR4: 00000000000006e0 Process fio (pid: 3695, threadinfo ffff810106c98000, task ffff8101381ac7a0) Stack: ffff81010892d968 0000000000000001 0000000000000000 ffffffff8005bd48 0000000000000001 ffff810107c87e78 ffff81011e9663c0 ffff81010892d968 0000000000000001 0000000000000001 0000000000000000 ffffffff88079fb4 Call Trace: <IRQ> [<ffffffff8005bd48>] blk_run_queue+0x41/0x72 [<ffffffff88079fb4>] :scsi_mod:scsi_end_request+0x27/0xcd [<ffffffff8807a1a8>] :scsi_mod:scsi_io_completion+0x14e/0x324 [<ffffffff880a67cd>] :sd_mod:sd_rw_intr+0x21d/0x257 [<ffffffff8807a43d>] :scsi_mod:scsi_device_unbusy+0x67/0x81 [<ffffffff800376ff>] blk_done_softirq+0x5f/0x6d [<ffffffff80011fbc>] __do_softirq+0x89/0x133 [<ffffffff8005e2fc>] call_softirq+0x1c/0x28 [<ffffffff8006cada>] do_softirq+0x2c/0x85 [<ffffffff8006c962>] do_IRQ+0xec/0xf5 [<ffffffff8005d615>] ret_from_intr+0x0/0xa <EOI> [<ffffffff800e95a7>] aio_pread+0x0/0x9b [<ffffffff800e9ef3>] aio_run_iocb+0x93/0x18a [<ffffffff80126d43>] selinux_file_permission+0x9f/0xb6 [<ffffffff800eaa84>] io_submit_one+0x29d/0x2ea [<ffffffff800eafc3>] sys_io_submit+0x9b/0x108 [<ffffffff8005d28d>] tracesys+0xd5/0xe0 Code: 8b 44 08 08 c1 e8 09 41 89 45 50 41 89 45 38 0f b7 72 2a 48 RIP [<ffffffff8002cc0e>] __end_that_request_first+0x40f/0x5df RSP <ffff810104787dd0> crash> bt PID: 3695 TASK: ffff8101381ac7a0 CPU: 2 COMMAND: "fio" #0 [ffff810104787bb0] crash_kexec at ffffffff800aaa0c #1 [ffff810104787c70] __die at ffffffff8006520f #2 [ffff810104787cb0] die at ffffffff8006bc17 #3 [ffff810104787ce0] do_general_protection at ffffffff80065657 #4 [ffff810104787d20] error_exit at ffffffff8005dde9 [exception RIP: __end_that_request_first+1039] RIP: ffffffff8002cc0e RSP: ffff810104787dd0 RFLAGS: 00010202 RAX: 00000000000e0dd0 RBX: 0000000000000000 RCX: a0a6be50cb5fe143 RDX: ffff8101095435c0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8101095435c0 R8: ffffffff802f7aa8 R9: 0000000000000046 R10: ffff810104787a70 R11: 0000000000000080 R12: ffff81010892d968 R13: ffff810107c87e78 R14: 0000000000000000 R15: 0000000000000800 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #5 [ffff810104787de8] blk_run_queue at ffffffff8005bd48 #6 [ffff810104787e28] scsi_end_request at ffffffff88079fb4 #7 [ffff810104787e58] scsi_io_completion at ffffffff8807a1a8 #8 [ffff810104787eb8] sd_rw_intr at ffffffff880a67cd #9 [ffff810104787f18] blk_done_softirq at ffffffff800376ff #10 [ffff810104787f38] __do_softirq at ffffffff80011fbc #11 [ffff810104787f68] call_softirq at ffffffff8005e2fc #12 [ffff810104787f80] do_softirq at ffffffff8006cada #13 [ffff810104787f90] do_IRQ at ffffffff8006c962 --- <IRQ stack> --- #14 [ffff810106c99df8] ret_from_intr at ffffffff8005d615 [exception RIP: aio_run_iocb+147] RIP: ffffffff800e9ef3 RSP: ffff810106c99ea8 RFLAGS: 00000282 RAX: 0000000000000000 RBX: ffff810107c45bf8 RCX: ffffffff800e95a7 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8101095bcbc0 RBP: 0000000000000001 R8: ffff810106c99d28 R9: 0000000000000000 R10: 0000000000000000 R11: 0000000000000048 R12: ffff81010b602118 R13: ffff8101381ac7a0 R14: ffffffff80124525 R15: ffff810106510ec0 ORIG_RAX: ffffffffffffff85 CS: 0010 SS: 0018 #15 [ffff810106c99ea0] selinux_file_permission at ffffffff80126d43 #16 [ffff810106c99ec0] io_submit_one at ffffffff800eaa84 #17 [ffff810106c99ef0] sys_io_submit at ffffffff800eafc3 #18 [ffff810106c99f80] tracesys at ffffffff8005d28d (via system_call) RIP: 00002b7ea8e74607 RSP: 00007fff01c473d8 RFLAGS: 00000202 RAX: ffffffffffffffda RBX: ffffffff8005d28d RCX: ffffffffffffffff RDX: 0000000015bb0e10 RSI: 0000000000000001 RDI: 00002b7ead554000 RBP: 0000000015bab980 R8: 0000000012c75a91 R9: 00000000001a81fc R10: 000000004b704f43 R11: 0000000000000202 R12: 0000000015bb1020 R13: 0000000000000000 R14: 00002b7ead1ddb00 R15: 00007fff01c47430 ORIG_RAX: 00000000000000d1 CS: 0033 SS: 002b ================================================================== -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html