We've observed this on another instance running 12.04, ami-3c994355, with a read-heavy postgresql load.
CPU0 rip: ffffffff8105e51a try_to_wake_up+0xca flags: 00001202 i nz rsp: ffff880f22deb7d0 rax: 0000000000000004 rcx: ffff880f22deb900 rdx: 0000000000000082 rbx: ffff880c633196e0 rsi: 0000000000000000 rdi: ffff880c63319cc0 rbp: ffff880f22deb820 r8: ffffea0024739ec0 r9: 0000000000000001 r10: 57ff5831a9739ec0 r11: 0000000000000000 r12: ffff880c63319cc0 r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000003 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22de8000/0000000000000000 Code (instr addr ffffffff8105e51a) 66 90 45 85 ff 74 0e 44 8b 7d cc e9 aa 00 00 00 0f 1f 00 f3 90 <44> 8b 4b 28 45 85 c9 75 f5 48 8b Stack: ffffffff81c70004 ffffffff81c70004 0000000000000001 000000041e7b3969 0000000000000000 ffff880a931f9c70 0000000000000001 ffff880f22fbcaf0 ffff880f22deb900 0000000000000000 ffff880f22deb830 ffffffff8105e662 ffff880f22deb850 ffffffff81089356 0000007fff570000 ffff880f22fbcad8 Call Trace: [<ffffffff8105e51a>] try_to_wake_up+0xca <-- [<ffffffff8105e662>] default_wake_function+0x12 [<ffffffff81089356>] autoremove_wake_function+0x16 [<ffffffff810893bb>] wake_bit_function+0x3b [<ffffffff8104b0a8>] __wake_up_common+0x58 [<ffffffff8104cc78>] __wake_up+0x48 [<ffffffff81088ff1>] __wake_up_bit+0x31 [<ffffffff811147ca>] unlock_page+0x2a [<ffffffff811b05d6>] mpage_end_io+0x46 [<ffffffff811a928d>] bio_endio+0x1d [<ffffffff812ebf43>] req_bio_endio.isra.45+0xa3 [<ffffffff812ec695>] blk_update_request+0xf5 [<ffffffff812ec9d1>] blk_update_bidi_request+0x31 [<ffffffff812eea90>] __blk_end_bidi_request+0x20 [<ffffffff812eeadf>] __blk_end_request_all+0x1f [<ffffffff814093dc>] blkif_interrupt+0x1cc [<ffffffff810d6925>] handle_irq_event_percpu+0x55 [<ffffffff8130bbdb>] radix_tree_lookup+0xb [<ffffffff810d6b3e>] handle_irq_event+0x4e [<ffffffff810d9ae4>] handle_edge_irq+0x84 [<ffffffff813a3eb9>] __xen_evtchn_do_upcall+0x199 [<ffffffff813a5f9f>] xen_evtchn_do_upcall+0x2f [<ffffffff8165fb7e>] xen_do_hypervisor_callback+0x1e [<ffffffff810013aa>] hypercall_page+0x3aa [<ffffffff810013aa>] hypercall_page+0x3aa [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b33>] xen_spin_lock_flags+0x63 [<ffffffff8165556e>] _raw_spin_lock_irqsave+0x2e [<ffffffff8105507e>] update_shares+0x9e [<ffffffff8105ddd8>] rebalance_domains+0x48 [<ffffffff8105e078>] run_rebalance_domains+0x48 [<ffffffff8106d318>] __do_softirq+0xa8 [<ffffffff813a3f27>] __xen_evtchn_do_upcall+0x207 [<ffffffff8165fb2c>] call_softirq+0x1c [<ffffffff81015295>] do_softirq+0x65 [<ffffffff8106d6fe>] irq_exit+0x8e [<ffffffff813a5fa5>] xen_evtchn_do_upcall+0x35 [<ffffffff8165fb7e>] xen_do_hypervisor_callback+0x1e CPU1 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001246 i z p rsp: ffff880ec1225ec8 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: ffff880ec1225fd8 rsi: 0000000000000000 rdi: 0000000000000001 rbp: ffff880ec1225ee0 r8: 0000000000000000 r9: 0000000000000000 r10: 0000000000000001 r11: 0000000000000246 r12: ffffffff81cdbd60 r13: 0000000000000001 r14: 0000000000000000 r15: 0000000000000000 cs: e033 ss: e02b ds: 002b es: 002b fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22e04000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000000 00000000ffffffff ffffffff8100a190 ffff880ec1225f10 ffffffff8101b893 ffff880ec1225fd8 ffffffff81cdbd60 0000000000000000 0000000000000000 ffff880ec1225f40 ffffffff81012236 ffffffff8100a9d9 58e9d471e076535d 0000000000000000 0000000000000000 ffff880ec1225f50 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff8100a190>] xen_safe_halt+0x10 [<ffffffff8101b893>] default_idle+0x53 [<ffffffff81012236>] cpu_idle+0xd6 [<ffffffff8100a9d9>] xen_irq_enable_direct_reloc+0x4 [<ffffffff8162ebc3>] cpu_bringup_and_idle+0xe CPU2 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880ec0ef1930 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880ec0ef1948 rdi: 0000000000000003 rbp: ffff880ec0ef1978 r8: ffff880ec316d700 r9: ffff880ee5400100 r10: 0000000000000022 r11: 0000000000000202 r12: 000000000000001d r13: 0000000000000001 r14: ffff880ec0ef1a01 r15: ffff880c63319c00 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007f7566bae700 gs: 0000 @ ffff880f22e20000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000246 00000000fffffffa ffffffff813a464e ffff880ec0ef1964 ffffffff00000001 0000000000000000 00000010813a404e ffff880ec0ef1978 ffff880c63319cc0 ffff880ec0ef1988 ffffffff813a6130 ffff880ec0ef19d8 ffffffff8163a7a1 0000000200000000 0000000000000000 000000000000ffff Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b33>] xen_spin_lock_flags+0x63 [<ffffffff8165556e>] _raw_spin_lock_irqsave+0x2e [<ffffffff8104ce20>] task_rq_lock+0x40 [<ffffffff8105f32c>] task_sched_runtime+0x2c [<ffffffff8108aef8>] thread_group_cputime+0x78 [<ffffffff8105f983>] thread_group_times+0x33 [<ffffffff811dacc3>] do_task_stat+0x6c3 [<ffffffff8116c3da>] mem_cgroup_add_lru_list+0x1a [<ffffffff81008c39>] xen_set_pte_at+0x39 [<ffffffff81006739>] pte_mfn_to_pfn+0x89 [<ffffffff81006800>] xen_pte_val+0x30 [<ffffffff81005191>] __raw_callee_save_xen_pte_val+0x11 [<ffffffff811147ca>] unlock_page+0x2a [<ffffffff8113a892>] follow_page+0x322 [<ffffffff8113d901>] sys_mincore+0x131 [<ffffffff811db8b4>] proc_tgid_stat+0x14 [<ffffffff811d64dc>] proc_single_show+0x5c [<ffffffff81196f13>] seq_read+0x123 [<ffffffff81174e80>] vfs_read+0xb0 [<ffffffff81174f9a>] sys_read+0x4a [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU3 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880c50209950 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880c50209968 rdi: 0000000000000003 rbp: ffff880c50209998 r8: ffff880ec316dd00 r9: ffff880ee5400130 r10: 0000000000000000 r11: 0000000000000202 r12: 0000000000000023 r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22e4f600 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22e3c000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880c50209984 ffffffff00000001 0000000000000000 00000016813a404e ffff880c50209998 ffff880f22dfb6c0 ffff880c502099a8 ffffffff813a6130 ffff880c502099f8 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8163cfe4>] idle_balance+0xab [<ffffffff81114760>] sleep_on_page+0x20 [<ffffffff81653329>] __schedule+0x699 [<ffffffff81114760>] sleep_on_page+0x20 [<ffffffff8165344f>] schedule+0x3f [<ffffffff816534ff>] io_schedule+0x8f [<ffffffff8111476e>] sleep_on_page_killable+0xe [<ffffffff81653bca>] __wait_on_bit_lock+0x5a [<ffffffff811146c7>] __lock_page_killable+0x67 [<ffffffff81005988>] pte_pfn_to_mfn+0x88 [<ffffffff81089380>] autoremove_wake_function+0x40 [<ffffffff81115af7>] do_generic_file_read.constprop.33+0x287 [<ffffffff81116a4f>] generic_file_aio_read+0xef [<ffffffff8113aada>] handle_pte_fault+0xfa [<ffffffff81174522>] do_sync_read+0xd2 [<ffffffff81298d33>] security_file_permission+0x93 [<ffffffff811749a1>] rw_verify_area+0x61 [<ffffffff81174e80>] vfs_read+0xb0 [<ffffffff81174f9a>] sys_read+0x4a [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU4 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880a931f9950 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880a931f9968 rdi: 0000000000000003 rbp: ffff880a931f9998 r8: ffff880ec12fe300 r9: ffff880ee5400160 r10: 0000000000000000 r11: 0000000000000202 r12: 0000000000000029 r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22e6b600 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22e58000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880a931f9984 ffffffff00000001 0000000000000000 0000001c813a404e ffff880a931f9998 ffff880f22dfb6c0 ffff880a931f99a8 ffffffff813a6130 ffff880a931f99f8 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8163cfe4>] idle_balance+0xab [<ffffffff81114760>] sleep_on_page+0x20 [<ffffffff81653329>] __schedule+0x699 [<ffffffff81114760>] sleep_on_page+0x20 [<ffffffff8165344f>] schedule+0x3f [<ffffffff816534ff>] io_schedule+0x8f [<ffffffff8111476e>] sleep_on_page_killable+0xe [<ffffffff81653bca>] __wait_on_bit_lock+0x5a [<ffffffff811146c7>] __lock_page_killable+0x67 [<ffffffff81005988>] pte_pfn_to_mfn+0x88 [<ffffffff81089380>] autoremove_wake_function+0x40 [<ffffffff81115af7>] do_generic_file_read.constprop.33+0x287 [<ffffffff81116a4f>] generic_file_aio_read+0xef [<ffffffff8113aada>] handle_pte_fault+0xfa [<ffffffff81174522>] do_sync_read+0xd2 [<ffffffff81298d33>] security_file_permission+0x93 [<ffffffff811749a1>] rw_verify_area+0x61 [<ffffffff81174e80>] vfs_read+0xb0 [<ffffffff81174f9a>] sys_read+0x4a [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU5 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001206 i nz p rsp: ffff880f22e77c20 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880f22e77c38 rdi: 0000000000000003 rbp: ffff880f22e77c68 r8: ffff880ec12fe900 r9: ffff880ee5400190 r10: 0000000000000001 r11: 0000000000000206 r12: 000000000000002f r13: 0000000000000001 r14: ffffffff81e0b101 r15: 7fffffffffffff00 cs: e033 ss: e02b ds: 002b es: 002b fs: 0000 @ 00007ff5b1375700 gs: 0000 @ ffff880f22e74000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000000 00000000fffffffa ffffffff813a464e ffff880f22e77c54 ffffffff00000001 0000000000000000 00000022813a404e ffff880f22e77c68 ffff880f22dfb6c0 ffff880f22e77c78 ffffffff813a6130 ffff880f22e77cc8 ffffffff8163a7a1 0000000000000005 0000000000000000 ffff880f22e77ca8 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff810583f8>] do_sched_rt_period_timer+0x138 [<ffffffff8100a540>] xen_clocksource_read+0x20 [<ffffffff8105865a>] sched_rt_period_timer+0x2a [<ffffffff8108cfc8>] __run_hrtimer+0x78 [<ffffffff81058630>] do_sched_rt_period_timer+0x370 [<ffffffff8100a629>] xen_clocksource_get_cycles+0x9 [<ffffffff8108d853>] hrtimer_interrupt+0xe3 [<ffffffff8100a507>] xen_timer_interrupt+0x27 [<ffffffff810d6925>] handle_irq_event_percpu+0x55 [<ffffffff813a404e>] info_for_irq+0xe [<ffffffff810d9bd7>] handle_percpu_irq+0x47 [<ffffffff813a3eb9>] __xen_evtchn_do_upcall+0x199 [<ffffffff813a5f9f>] xen_evtchn_do_upcall+0x2f [<ffffffff8165fb7e>] xen_do_hypervisor_callback+0x1e CPU6 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001206 i nz p rsp: ffff880ebd6c7780 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880ebd6c7798 rdi: 0000000000000003 rbp: ffff880ebd6c77c8 r8: ffff880ec12fef00 r9: ffff880ee54001c0 r10: 0000000000000000 r11: 0000000000000206 r12: 0000000000000035 r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22ea3600 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22e90000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880ebd6c77b4 ffffffff00000001 0000000000000000 00000028813a404e ffff880ebd6c77c8 ffff880f22dfb6c0 ffff880ebd6c77d8 ffffffff813a6130 ffff880ebd6c7828 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8163cfe4>] idle_balance+0xab [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff81653329>] __schedule+0x699 [<ffffffff8165344f>] schedule+0x3f [<ffffffff8165454c>] schedule_hrtimeout_range_clock+0x12c [<ffffffff8108c890>] update_rmtp+0x70 [<ffffffff8108d684>] hrtimer_start_range_ns+0x14 [<ffffffff816545a3>] schedule_hrtimeout_range+0x13 [<ffffffff811877a9>] poll_schedule_timeout+0x49 [<ffffffff81187cfa>] do_poll.isra.4+0x1ca [<ffffffff81188c39>] do_sys_poll+0x1b9 [<ffffffff811878b0>] poll_freewait+0xe0 [<ffffffff811879a0>] __pollwait+0xf0 [<ffffffff815a203b>] inet_recvmsg+0x6b [<ffffffff8152221d>] sock_recvmsg+0x11d [<ffffffff81008c39>] xen_set_pte_at+0x39 [<ffffffff81137127>] do_anonymous_page.isra.38+0x247 [<ffffffff8113abc1>] handle_pte_fault+0x1e1 [<ffffffff810067be>] xen_pmd_val+0xe [<ffffffff81005209>] __raw_callee_save_xen_pmd_val+0x11 [<ffffffff8113af98>] handle_mm_fault+0x1f8 [<ffffffff8103cc65>] pvclock_clocksource_read+0x55 [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8100a540>] xen_clocksource_read+0x20 [<ffffffff8100a629>] xen_clocksource_get_cycles+0x9 [<ffffffff810933ed>] ktime_get_ts+0xad [<ffffffff81187e3a>] poll_select_set_timeout+0x7a [<ffffffff81188da6>] sys_poll+0x76 [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU7 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001206 i nz p rsp: ffff880c98f8fb60 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880c98f8fb78 rdi: 0000000000000003 rbp: ffff880c98f8fba8 r8: ffff880ec12ff500 r9: ffff880ee54001f0 r10: 57fefef53fc2bec0 r11: 0000000000000206 r12: 000000000000003b r13: 0000000000000001 r14: 0000000000000001 r15: ffff880c98f8fc01 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22eac000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: ffffea003ac2bec0 00000000fffffffa ffffffff813a464e ffff880c98f8fb94 ffffffff00000001 0000000000000000 0000002e813a404e ffff880c98f8fba8 ffff880f22fbcae8 ffff880c98f8fbb8 ffffffff813a6130 ffff880c98f8fc08 ffffffff8163a7a1 ffff880c98f8fbd8 0000000000000000 ffff880e653e73f0 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b33>] xen_spin_lock_flags+0x63 [<ffffffff8165556e>] _raw_spin_lock_irqsave+0x2e [<ffffffff8104cc62>] __wake_up+0x32 [<ffffffff81088ff1>] __wake_up_bit+0x31 [<ffffffff811147ca>] unlock_page+0x2a [<ffffffff81137609>] __do_fault+0x439 [<ffffffff8119401f>] mntput+0x1f [<ffffffff8113aada>] handle_pte_fault+0xfa [<ffffffff810067be>] xen_pmd_val+0xe [<ffffffff81005209>] __raw_callee_save_xen_pmd_val+0x11 [<ffffffff8113af98>] handle_mm_fault+0x1f8 [<ffffffff81658ddb>] do_page_fault+0x14b [<ffffffff81314931>] strncpy_from_user+0x31 [<ffffffff8115f06f>] kmem_cache_free+0x2f [<ffffffff8120d2cc>] ext4_llseek+0x2c [<ffffffff81655a35>] page_fault+0x25 CPU8 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880bf12f7840 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880bf12f7858 rdi: 0000000000000003 rbp: ffff880bf12f7888 r8: ffff880ec12ffb00 r9: ffff880ee5400490 r10: 0000000000000000 r11: 0000000000000202 r12: 0000000000000041 r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22edb600 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22ec8000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880bf12f7874 ffffffff00000001 0000000000000000 00000034813a404e ffff880bf12f7888 ffff880f22dfb6c0 ffff880bf12f7898 ffffffff813a6130 ffff880bf12f78e8 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8163cfe4>] idle_balance+0xab [<ffffffff81653329>] __schedule+0x699 [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8165344f>] schedule+0x3f [<ffffffff81653a95>] schedule_timeout+0x2a5 [<ffffffff8100aa1f>] xen_restore_fl_direct_reloc+0x4 [<ffffffff81527501>] sk_wait_data+0xd1 [<ffffffff81089340>] add_wait_queue+0x60 [<ffffffff8157e048>] tcp_recvmsg+0x4c8 [<ffffffff815a203b>] inet_recvmsg+0x6b [<ffffffff815a20b4>] inet_sendmsg+0x64 [<ffffffff8152221d>] sock_recvmsg+0x11d [<ffffffff815223ae>] sock_sendmsg+0x10e [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8152555e>] sys_recvfrom+0xee [<ffffffff8100a540>] xen_clocksource_read+0x20 [<ffffffff8106b4d1>] sys_setitimer+0x61 [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU9 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001206 i nz p rsp: ffff880c96e9d840 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880c96e9d858 rdi: 0000000000000003 rbp: ffff880c96e9d888 r8: ffff880ec13a2100 r9: ffff880ee54004c0 r10: 0000000000000000 r11: 0000000000000206 r12: 0000000000000047 r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22ef7600 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22ee4000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880c96e9d874 ffffffff00000001 0000000000000000 0000003a813a404e ffff880c96e9d888 ffff880f22dfb6c0 ffff880c96e9d898 ffffffff813a6130 ffff880c96e9d8e8 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8163cfe4>] idle_balance+0xab [<ffffffff81653329>] __schedule+0x699 [<ffffffff8165344f>] schedule+0x3f [<ffffffff81653a95>] schedule_timeout+0x2a5 [<ffffffff8100aa1f>] xen_restore_fl_direct_reloc+0x4 [<ffffffff81527501>] sk_wait_data+0xd1 [<ffffffff81089340>] add_wait_queue+0x60 [<ffffffff8157e048>] tcp_recvmsg+0x4c8 [<ffffffff81655c9a>] error_exit+0x2a [<ffffffff815a203b>] inet_recvmsg+0x6b [<ffffffff815a20b4>] inet_sendmsg+0x64 [<ffffffff8152221d>] sock_recvmsg+0x11d [<ffffffff815223ae>] sock_sendmsg+0x10e [<ffffffff81116a4f>] generic_file_aio_read+0xef [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8152555e>] sys_recvfrom+0xee [<ffffffff8100a540>] xen_clocksource_read+0x20 [<ffffffff8100a629>] xen_clocksource_get_cycles+0x9 [<ffffffff81092f27>] getnstimeofday+0x57 [<ffffffff8109301a>] do_gettimeofday+0x1a [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU10 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880e6e867840 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880e6e867858 rdi: 0000000000000003 rbp: ffff880e6e867888 r8: ffff880ec13a2700 r9: ffff880ee54004f0 r10: 0000000000000000 r11: 0000000000000202 r12: 000000000000004d r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22f13600 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22f00000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880e6e867874 ffffffff00000001 0000000000000000 00000040813a404e ffff880e6e867888 ffff880f22dfb6c0 ffff880e6e867898 ffffffff813a6130 ffff880e6e8678e8 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8163cfe4>] idle_balance+0xab [<ffffffff81653329>] __schedule+0x699 [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8165344f>] schedule+0x3f [<ffffffff81653a95>] schedule_timeout+0x2a5 [<ffffffff8100aa1f>] xen_restore_fl_direct_reloc+0x4 [<ffffffff81527501>] sk_wait_data+0xd1 [<ffffffff81089340>] add_wait_queue+0x60 [<ffffffff8157e048>] tcp_recvmsg+0x4c8 [<ffffffff815a203b>] inet_recvmsg+0x6b [<ffffffff815a20b4>] inet_sendmsg+0x64 [<ffffffff8152221d>] sock_recvmsg+0x11d [<ffffffff815223ae>] sock_sendmsg+0x10e [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8152555e>] sys_recvfrom+0xee [<ffffffff8100a540>] xen_clocksource_read+0x20 [<ffffffff8100a629>] xen_clocksource_get_cycles+0x9 [<ffffffff81092f27>] getnstimeofday+0x57 [<ffffffff8109301a>] do_gettimeofday+0x1a [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU11 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880b5e2bf840 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880b5e2bf858 rdi: 0000000000000003 rbp: ffff880b5e2bf888 r8: ffff880ec13a2d00 r9: ffff880ee5400520 r10: 0000000000000000 r11: 0000000000000202 r12: 0000000000000053 r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22f2f600 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22f1c000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880b5e2bf874 ffffffff00000001 0000000000000000 00000046813a404e ffff880b5e2bf888 ffff880f22dfb6c0 ffff880b5e2bf898 ffffffff813a6130 ffff880b5e2bf8e8 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8163cfe4>] idle_balance+0xab [<ffffffff81653329>] __schedule+0x699 [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8165344f>] schedule+0x3f [<ffffffff81653a95>] schedule_timeout+0x2a5 [<ffffffff8100aa1f>] xen_restore_fl_direct_reloc+0x4 [<ffffffff81527501>] sk_wait_data+0xd1 [<ffffffff81089340>] add_wait_queue+0x60 [<ffffffff8157e048>] tcp_recvmsg+0x4c8 [<ffffffff81655c9a>] error_exit+0x2a [<ffffffff815a203b>] inet_recvmsg+0x6b [<ffffffff815a20b4>] inet_sendmsg+0x64 [<ffffffff8152221d>] sock_recvmsg+0x11d [<ffffffff815223ae>] sock_sendmsg+0x10e [<ffffffff81116a4f>] generic_file_aio_read+0xef [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8152555e>] sys_recvfrom+0xee [<ffffffff8100a540>] xen_clocksource_read+0x20 [<ffffffff8100a629>] xen_clocksource_get_cycles+0x9 [<ffffffff81092f27>] getnstimeofday+0x57 [<ffffffff8109301a>] do_gettimeofday+0x1a [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU12 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880c3b303840 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880c3b303858 rdi: 0000000000000003 rbp: ffff880c3b303888 r8: ffff880ec13a3300 r9: ffff880ee5400550 r10: 0000000000000000 r11: 0000000000000202 r12: 0000000000000059 r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22f4b600 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22f38000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880c3b303874 ffffffff00000001 0000000000000000 0000004c813a404e ffff880c3b303888 ffff880f22dfb6c0 ffff880c3b303898 ffffffff813a6130 ffff880c3b3038e8 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8163cfe4>] idle_balance+0xab [<ffffffff81653329>] __schedule+0x699 [<ffffffff8165344f>] schedule+0x3f [<ffffffff81653a95>] schedule_timeout+0x2a5 [<ffffffff8100aa1f>] xen_restore_fl_direct_reloc+0x4 [<ffffffff81527501>] sk_wait_data+0xd1 [<ffffffff81089340>] add_wait_queue+0x60 [<ffffffff8157e048>] tcp_recvmsg+0x4c8 [<ffffffff815a203b>] inet_recvmsg+0x6b [<ffffffff815a20b4>] inet_sendmsg+0x64 [<ffffffff8152221d>] sock_recvmsg+0x11d [<ffffffff815223ae>] sock_sendmsg+0x10e [<ffffffff81137127>] do_anonymous_page.isra.38+0x247 [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8152555e>] sys_recvfrom+0xee [<ffffffff8100a540>] xen_clocksource_read+0x20 [<ffffffff8100a629>] xen_clocksource_get_cycles+0x9 [<ffffffff81092f27>] getnstimeofday+0x57 [<ffffffff8109301a>] do_gettimeofday+0x1a [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU13 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880f22f57cb8 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880f22f57cd0 rdi: 0000000000000003 rbp: ffff880f22f57d00 r8: ffff880ec13a3900 r9: ffff880ee5400580 r10: 0000000000000000 r11: 0000000000000202 r12: 000000000000005f r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22f67600 cs: e033 ss: e02b ds: 002b es: 002b fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22f54000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880f22f57cec ffffffff00000001 0000000000000000 00000052813a404e ffff880f22f57d00 ffff880f22dfb6c0 ffff880f22f57d10 ffffffff813a6130 ffff880f22f57d60 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8105de29>] rebalance_domains+0x99 [<ffffffff8100a50c>] xen_timer_interrupt+0x2c [<ffffffff8105e078>] run_rebalance_domains+0x48 [<ffffffff8106d318>] __do_softirq+0xa8 [<ffffffff813a3f27>] __xen_evtchn_do_upcall+0x207 [<ffffffff8165fb2c>] call_softirq+0x1c [<ffffffff81015295>] do_softirq+0x65 [<ffffffff8106d6fe>] irq_exit+0x8e [<ffffffff813a5fa5>] xen_evtchn_do_upcall+0x35 [<ffffffff8165fb7e>] xen_do_hypervisor_callback+0x1e CPU14 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880b45eb3800 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880b45eb3818 rdi: 0000000000000003 rbp: ffff880b45eb3848 r8: ffff880ec13a3f00 r9: ffff880ee54005b0 r10: 0000000015091c00 r11: 0000000000000202 r12: 0000000000000065 r13: 0000000000000001 r14: ffff880eab073501 r15: ffff880ebe3ee300 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22f70000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000000 00000000fffffffa ffffffff813a464e ffff880b45eb3834 ffffffff00000001 0000000000000000 00000058813a404e ffff880b45eb3848 ffffffff81f15eb0 ffff880b45eb3858 ffffffff813a6130 ffff880b45eb38a8 ffffffff8163a7a1 ffff880ebe3ee3c0 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816555c5>] _raw_spin_lock_irq+0x15 [<ffffffff812ef324>] blk_queue_bio+0x154 [<ffffffff812ebff4>] generic_make_request.part.50+0x74 [<ffffffff812ec3f8>] generic_make_request+0x68 [<ffffffff812ec485>] submit_bio+0x85 [<ffffffff811153e5>] add_to_page_cache_locked+0x85 [<ffffffff811b0eb0>] mpage_readpages+0x120 [<ffffffff81214a70>] noalloc_get_block_write+0x30 [<ffffffff8111dba9>] __alloc_pages_nodemask+0x109 [<ffffffff81214a70>] noalloc_get_block_write+0x30 [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8121074d>] ext4_readpages+0x1d [<ffffffff81120098>] read_pages+0x48 [<ffffffff811202b3>] __do_page_cache_readahead+0x163 [<ffffffff8130bbdb>] radix_tree_lookup+0xb [<ffffffff811207b9>] ondemand_readahead+0x189 [<ffffffff81005988>] pte_pfn_to_mfn+0x88 [<ffffffff81120941>] page_cache_sync_readahead+0x31 [<ffffffff81115b1e>] do_generic_file_read.constprop.33+0x2ae [<ffffffff81116a4f>] generic_file_aio_read+0xef [<ffffffff8113aada>] handle_pte_fault+0xfa [<ffffffff81174522>] do_sync_read+0xd2 [<ffffffff81298d33>] security_file_permission+0x93 [<ffffffff811749a1>] rw_verify_area+0x61 [<ffffffff81174e80>] vfs_read+0xb0 [<ffffffff81174f9a>] sys_read+0x4a [<ffffffff8165d8c2>] system_call_fastpath+0x16 CPU15 rip: ffffffff810013aa hypercall_page+0x3aa flags: 00001202 i nz rsp: ffff880c49ec9840 rax: 0000000000000000 rcx: ffffffff810013aa rdx: 0000000000000000 rbx: 0000000000000000 rsi: ffff880c49ec9858 rdi: 0000000000000003 rbp: ffff880c49ec9888 r8: ffff880ec0c40500 r9: ffff880ee54005e0 r10: 0000000000000000 r11: 0000000000000202 r12: 000000000000006b r13: 0000000000000001 r14: ffff880f22dfb601 r15: ffff880f22f9f600 cs: e033 ss: e02b ds: 0000 es: 0000 fs: 0000 @ 00007ff790365740 gs: 0000 @ ffff880f22f8c000/0000000000000000 Code (instr addr ffffffff810013aa) cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc Stack: 0000000000000049 00000000fffffffa ffffffff813a464e ffff880c49ec9874 ffffffff00000001 0000000000000000 0000005e813a404e ffff880c49ec9888 ffff880f22dfb6c0 ffff880c49ec9898 ffffffff813a6130 ffff880c49ec98e8 ffffffff8163a7a1 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810013aa>] hypercall_page+0x3aa <-- [<ffffffff813a464e>] xen_poll_irq_timeout+0x3e [<ffffffff813a6130>] xen_poll_irq+0x10 [<ffffffff8163a7a1>] xen_spin_lock_slow+0x97 [<ffffffff81011b9a>] xen_spin_lock+0x4a [<ffffffff816552de>] _raw_spin_lock+0xe [<ffffffff8104fdac>] double_rq_lock+0x2c [<ffffffff8105db18>] load_balance+0xf8 [<ffffffff816554ee>] _raw_spin_unlock_irqrestore+0x1e [<ffffffff8163cfe4>] idle_balance+0xab [<ffffffff81653329>] __schedule+0x699 [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8165344f>] schedule+0x3f [<ffffffff81653a95>] schedule_timeout+0x2a5 [<ffffffff8100aa1f>] xen_restore_fl_direct_reloc+0x4 [<ffffffff81527501>] sk_wait_data+0xd1 [<ffffffff81089340>] add_wait_queue+0x60 [<ffffffff8157e048>] tcp_recvmsg+0x4c8 [<ffffffff815a203b>] inet_recvmsg+0x6b [<ffffffff815a20b4>] inet_sendmsg+0x64 [<ffffffff8152221d>] sock_recvmsg+0x11d [<ffffffff815223ae>] sock_sendmsg+0x10e [<ffffffff8100a25d>] xen_force_evtchn_callback+0xd [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8100aa32>] check_events+0x12 [<ffffffff8152555e>] sys_recvfrom+0xee [<ffffffff8100a540>] xen_clocksource_read+0x20 [<ffffffff8100a629>] xen_clocksource_get_cycles+0x9 [<ffffffff81092f27>] getnstimeofday+0x57 [<ffffffff8109301a>] do_gettimeofday+0x1a [<ffffffff8165d8c2>] system_call_fastpath+0x16 ** Summary changed: - Scheduler deadlock running 3.0.0 on multiple EC2 instance types + Kernel lockup running 3.0.0 and 3.2.0 on multiple EC2 instance types -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1011792 Title: Kernel lockup running 3.0.0 and 3.2.0 on multiple EC2 instance types To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1011792/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
