SysRq : Changing Loglevel Loglevel set to 8 SysRq : Show backtrace of all active CPUs sending NMI to all CPUs: NMI backtrace for cpu 0 CPU: 0 PID: 7037 Comm: urpmq Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff88000387de80 ti: ffff88007dddc000 task.ti: ffff88007dddc000 RIP: 0010:[] [] __const_udelay+0x15/0x29 RSP: 0000:ffff8800bf203b68 EFLAGS: 00000006 RAX: 0000000001062560 RBX: 0000000000002710 RCX: 0000000000000007 RDX: 00000000001859ed RSI: 0000000000000c00 RDI: 0000000000418958 RBP: ffff8800bf203b68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000046 R11: 0000000000000046 R12: 0000000000000008 R13: 000000000000006c R14: 0000000000000001 R15: ffffffff81668f90 FS: 00007f20be79b700(0000) GS:ffff8800bf200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f0428984000 CR3: 0000000012f19000 CR4: 00000000000007f0 Stack: ffff8800bf203b88 ffffffff81025de1 0000000080010002 ffffffff816692b0 ffff8800bf203b98 ffffffff8126bc4f ffff8800bf203bc8 ffffffff8126c186 ffff88003780c000 0000000000000001 0000000000000026 ffff88003780c001 Call Trace: [] arch_trigger_all_cpu_backtrace+0xa8/0xd2 [] sysrq_handle_showallcpus+0xe/0x10 [] __handle_sysrq+0x94/0x126 [] sysrq_filter+0xee/0x287 [] input_to_handler+0x5e/0xcb [] input_pass_values.part.3+0x76/0x134 [] input_handle_event+0x457/0x46d [] input_event+0x55/0x6f [] input_sync+0xf/0x11 [] atkbd_interrupt+0x4d5/0x595 [] serio_interrupt+0x43/0x7d [] i8042_interrupt+0x292/0x2a8 [] ? tick_sched_do_timer+0x33/0x33 [] handle_irq_event_percpu+0x44/0x19f [] handle_irq_event+0x3c/0x5c [] ? apic_eoi+0x18/0x1a [] handle_edge_irq+0x95/0xae [] handle_irq+0x158/0x16d [] ? get_parent_ip+0xe/0x3e [] do_IRQ+0x58/0xda [] common_interrupt+0x6a/0x6a [] ? preempt_schedule_irq+0x3c/0x59 [] ? __zone_watermark_ok+0x7a/0x85 [] zone_watermark_ok+0x1a/0x1c [] compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x5f0/0x799 [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? new_sync_read+0x74/0x98 [] ? fsnotify_access+0x5a/0x63 [] ? vfs_read+0xac/0xd2 [] ? fdput_pos.isra.13+0x29/0x30 [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: 48 ff c8 75 fb 48 ff c8 5d c3 55 48 89 e5 ff 15 a4 0c 48 00 5d c3 55 48 8d 04 bd 00 00 00 00 48 89 e5 65 48 8b 14 25 20 26 01 00 <48> 69 d2 fa 00 00 00 f7 e2 48 8d 7a 01 e8 cd ff ff ff 5d c3 48 NMI backtrace for cpu 1 CPU: 1 PID: 7072 Comm: ps Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff88000387c6e0 ti: ffff880059bcc000 task.ti: ffff880059bcc000 RIP: 0010:[] [] seq_put_decimal_ull+0x46/0x72 RSP: 0018:ffff880059bcfce8 EFLAGS: 00000206 RAX: 00000000000000ad RBX: ffff880091097480 RCX: 00000000000000ae RDX: 0000000000000030 RSI: 0000000000000020 RDI: ffff8800b0230000 RBP: ffff880059bcfcf8 R08: 000000000000000a R09: 00000000ffffffff R10: ffffffff81136749 R11: ffffffff59bcfcb0 R12: ffff880080768000 R13: ffff8800ba205a40 R14: 0000000000000001 R15: 0000000000003d00 FS: 00007f042896a700(0000) GS:ffff8800bf300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000f0b018 CR3: 000000003abb8000 CR4: 00000000000007e0 Stack: 00000000ffffffff ffff880091097480 ffff880059bcfe28 ffffffff8116d751 ffff8800749e8480 0000000000800e06 5300880000000000 ffffffffffffffff 0000000000000000 0000000000000000 0000000000000000 0000000000000000 Call Trace: [] do_task_stat+0x7cf/0x980 [] proc_tgid_stat+0xf/0x11 [] proc_single_show+0x4c/0x6e [] seq_read+0x163/0x330 [] vfs_read+0x7d/0xd2 [] ? __fdget_pos+0xd/0x3c [] SyS_read+0x42/0x79 [] system_call_fastpath+0x12/0x17 Code: 0f 48 8b 0f 48 8d 78 01 48 89 7b 18 40 88 34 01 48 83 fa 09 48 8b 43 18 48 8b 3b 77 10 48 8d 48 01 83 c2 30 48 89 4b 18 88 14 07 17 8b 73 08 48 01 c7 29 c6 e8 89 84 0a 00 85 c0 74 0a 48 98 INFO: NMI handler (arch_trigger_all_cpu_backtrace_handler) took too long to run: 76.962 msecs SysRq : HELP : loglevel(0-9) reboot(b) crash(c) terminate-all-tasks(e) memory-full-oom-kill(f) kill-all-tasks(i) thaw-filesystems(j) sak(k) show-backtrace-all-active-cpus(l) show-memory-usage(m) nice-all-RT-tasks(n) poweroff(o) show-registers(p) show-all-timers(q) unraw(r) sync(s) show-task-states(t) unmount(u) force-fb(V) show-blocked-tasks(w) dump-ftrace-buffer(z) SysRq : Show backtrace of all active CPUs sending NMI to all CPUs: NMI backtrace for cpu 1 CPU: 1 PID: 7037 Comm: urpmq Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff88000387de80 ti: ffff88007dddc000 task.ti: ffff88007dddc000 RIP: 0010:[] [] compact_zone+0x3b6/0x4b2 RSP: 0000:ffff88007dddfa38 EFLAGS: 00000297 RAX: 00000000ffffffff RBX: ffffffff8168be40 RCX: 0000000000000008 RDX: 0000000000000800 RSI: 0000000000000009 RDI: ffffffff8168be40 RBP: ffff88007dddfa98 R08: 0000000000000000 R09: fffffffffffffef1 R10: 0000000000000038 R11: ffffffff8168be40 R12: 00000000000bf800 R13: 00000000000bf600 R14: ffff88007dddfab8 R15: 0000160000000000 FS: 00007f20be79b700(0000) GS:ffff8800bf300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f143453c000 CR3: 0000000012f19000 CR4: 00000000000007e0 Stack: ffff8800bf312e80 ffffea0002fd0000 0000000000000020 ffff88000387de80 0000000000000004 ffff88007dddfac8 0000000000000000 0000000000000000 0000000000000009 ffff88007dddfcec 0000000000000002 0000000000000000 Call Trace: [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x5f0/0x799 [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? new_sync_read+0x74/0x98 [] ? fsnotify_access+0x5a/0x63 [] ? vfs_read+0xac/0xd2 [] ? fdput_pos.isra.13+0x29/0x30 [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: 00 48 8b 1d 9b 2e 5a 00 48 85 db 74 9e 48 8b 7b 08 44 89 e6 ff 13 48 83 c3 10 48 83 3b 00 eb eb 41 83 7e 40 01 4d 8b 6e 38 19 c0 <89> 45 c0 4d 8d a5 00 02 00 00 83 65 c0 04 49 81 e4 00 fe ff ff NMI backtrace for cpu 0 CPU: 0 PID: 7356 Comm: kwin Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff8800b8c23f00 ti: ffff88009b1f8000 task.ti: ffff88009b1f8000 RIP: 0010:[] [] delay_tsc+0x1/0xa2 RSP: 0000:ffff8800bf203b48 EFLAGS: 00000807 RAX: 0000000026e004c0 RBX: 0000000000002710 RCX: 0000000000000007 RDX: 00000000001859f9 RSI: 0000000000000c00 RDI: 00000000001859fa RBP: ffff8800bf203b58 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000046 R11: 0000000000000046 R12: 0000000000000008 R13: 000000000000006c R14: 0000000000000001 R15: ffffffff81668f90 FS: 00007f445c0f17c0(0000) GS:ffff8800bf200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000003a5b1d8 CR3: 00000000a6d15000 CR4: 00000000000007f0 Stack: ffff8800bf203b58 ffffffff811df814 ffff8800bf203b68 ffffffff811df83d ffff8800bf203b88 ffffffff81025de1 0000000080010002 ffffffff816692b0 ffff8800bf203b98 ffffffff8126bc4f ffff8800bf203bc8 ffffffff8126c186 Call Trace: [] ? __delay+0xa/0xc [] __const_udelay+0x27/0x29 [] arch_trigger_all_cpu_backtrace+0xa8/0xd2 [] sysrq_handle_showallcpus+0xe/0x10 [] __handle_sysrq+0x94/0x126 [] sysrq_filter+0xee/0x287 [] input_to_handler+0x5e/0xcb [] input_pass_values.part.3+0x76/0x134 [] input_handle_event+0x457/0x46d [] input_event+0x55/0x6f [] input_sync+0xf/0x11 [] atkbd_interrupt+0x4d5/0x595 [] serio_interrupt+0x43/0x7d [] i8042_interrupt+0x292/0x2a8 [] ? tick_sched_do_timer+0x33/0x33 [] handle_irq_event_percpu+0x44/0x19f [] handle_irq_event+0x3c/0x5c [] ? apic_eoi+0x18/0x1a [] handle_edge_irq+0x95/0xae [] handle_irq+0x158/0x16d [] ? get_parent_ip+0xe/0x3e [] do_IRQ+0x58/0xda [] common_interrupt+0x6a/0x6a [] ? compact_zone+0x217/0x4b2 [] ? compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x409/0x799 [] ? anon_vma_prepare+0x2b/0x12c [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? set_next_entity+0x3a/0x63 [] ? debug_smp_processor_id+0x17/0x19 [] ? __switch_to+0x33f/0x49c [] ? _raw_spin_unlock_irq+0x14/0x27 [] ? debug_smp_processor_id+0x17/0x19 [] ? __schedule+0x2d9/0x451 [] ? SyS_mmap_pgoff+0x183/0x1cf [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: 7a 01 e8 cd ff ff ff 5d c3 48 69 ff c7 10 00 00 55 48 89 e5 e8 c7 ff ff ff 5d c3 55 48 8d 3c bf 48 89 e5 e8 b8 ff ff ff 5d c3 55 <48> 89 e5 41 56 41 55 41 54 41 89 fc bf 01 00 00 00 53 e8 f7 6f INFO: NMI handler (arch_trigger_all_cpu_backtrace_handler) took too long to run: 182.694 msecs SysRq : Show backtrace of all active CPUs sending NMI to all CPUs: NMI backtrace for cpu 1 CPU: 1 PID: 7037 Comm: urpmq Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff88000387de80 ti: ffff88007dddc000 task.ti: ffff88007dddc000 RIP: 0010:[] [] __zone_watermark_ok+0x77/0x85 RSP: 0000:ffff88007dddfa10 EFLAGS: 00000212 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 000000000000057c RSI: 0000000000000009 RDI: ffffffff8168be40 RBP: ffff88007dddfa18 R08: 0000000000000000 R09: 000000000000ca1f R10: 0000000000001c5b R11: ffffffff8168be40 R12: 00000000000bf800 R13: 00000000000bf600 R14: ffff88007dddfab8 R15: 0000160000000000 FS: 00007f20be79b700(0000) GS:ffff8800bf300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f143453c000 CR3: 0000000012f19000 CR4: 00000000000007e0 Stack: ffffffff8168be40 ffff88007dddfa28 ffffffff810d839e ffff88007dddfa98 ffffffff810ef3d7 ffff8800bf312e80 ffffea0002fd0000 0000000000000020 ffff88000387de80 0000000000000004 ffff88007dddfac8 0000000000000000 Call Trace: [] zone_watermark_ok+0x1a/0x1c [] compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x5f0/0x799 [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? new_sync_read+0x74/0x98 [] ? fsnotify_access+0x5a/0x63 [] ? vfs_read+0xac/0xd2 [] ? fdput_pos.isra.13+0x29/0x30 [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: d2 31 c0 31 c9 48 03 54 df 18 49 39 d1 7e 27 39 ce 76 21 48 6b d1 58 49 d1 fa 48 8b 94 17 28 01 00 00 48 d3 e2 48 ff c1 49 29 d1 <4d> 39 d1 7f df 31 c0 eb 02 b0 01 5b 5d c3 49 b9 13 da 4b 68 2f NMI backtrace for cpu 0 CPU: 0 PID: 7356 Comm: kwin Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff8800b8c23f00 ti: ffff88009b1f8000 task.ti: ffff88009b1f8000 RIP: 0010:[] [] delay_tsc+0xa/0xa2 RSP: 0000:ffff8800bf203b30 EFLAGS: 00000807 RAX: 0000000026e004c0 RBX: 0000000000002710 RCX: 0000000000000007 RDX: 00000000001859f9 RSI: 0000000000000c00 RDI: 00000000001859fa RBP: ffff8800bf203b48 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000046 R11: 0000000000000046 R12: 0000000000000008 R13: 000000000000006c R14: 0000000000000001 R15: ffffffff81668f90 FS: 00007f445c0f17c0(0000) GS:ffff8800bf200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000003a5b1d8 CR3: 00000000a6d15000 CR4: 00000000000007f0 Stack: 0000000000000008 000000000000006c 0000000000000001 ffff8800bf203b58 ffffffff811df814 ffff8800bf203b68 ffffffff811df83d ffff8800bf203b88 ffffffff81025de1 0000000080010002 ffffffff816692b0 ffff8800bf203b98 Call Trace: [] __delay+0xa/0xc [] __const_udelay+0x27/0x29 [] arch_trigger_all_cpu_backtrace+0xa8/0xd2 [] sysrq_handle_showallcpus+0xe/0x10 [] __handle_sysrq+0x94/0x126 [] sysrq_filter+0xee/0x287 [] input_to_handler+0x5e/0xcb [] input_pass_values.part.3+0x76/0x134 [] input_handle_event+0x457/0x46d [] input_event+0x55/0x6f [] input_sync+0xf/0x11 [] atkbd_interrupt+0x4d5/0x595 [] serio_interrupt+0x43/0x7d [] i8042_interrupt+0x292/0x2a8 [] ? tick_sched_do_timer+0x33/0x33 [] handle_irq_event_percpu+0x44/0x19f [] handle_irq_event+0x3c/0x5c [] ? apic_eoi+0x18/0x1a [] handle_edge_irq+0x95/0xae [] handle_irq+0x158/0x16d [] ? get_parent_ip+0xe/0x3e [] do_IRQ+0x58/0xda [] common_interrupt+0x6a/0x6a [] ? zone_watermark_ok+0x1a/0x1c [] ? zone_watermark_ok+0x1a/0x1c [] compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x409/0x799 [] ? anon_vma_prepare+0x2b/0x12c [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? set_next_entity+0x3a/0x63 [] ? debug_smp_processor_id+0x17/0x19 [] ? __switch_to+0x33f/0x49c [] ? _raw_spin_unlock_irq+0x14/0x27 [] ? debug_smp_processor_id+0x17/0x19 [] ? __schedule+0x2d9/0x451 [] ? SyS_mmap_pgoff+0x183/0x1cf [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: 48 69 ff c7 10 00 00 55 48 89 e5 e8 c7 ff ff ff 5d c3 55 48 8d 3c bf 48 89 e5 e8 b8 ff ff ff 5d c3 55 48 89 e5 41 56 41 55 41 54 <41> 89 fc bf 01 00 00 00 53 e8 f7 6f e7 ff e8 9a 9c 00 00 41 89 SysRq : Show backtrace of all active CPUs sending NMI to all CPUs: NMI backtrace for cpu 1 CPU: 1 PID: 7037 Comm: urpmq Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff88000387de80 ti: ffff88007dddc000 task.ti: ffff88007dddc000 RIP: 0010:[] [] preempt_count_add+0x0/0x8b RSP: 0000:ffff8800bf303b20 EFLAGS: 00000807 RAX: 0000000026e004c0 RBX: 0000000000002710 RCX: 0000000000000007 RDX: 00000000001859f9 RSI: 0000000000000c00 RDI: 0000000000000001 RBP: ffff8800bf303b48 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000046 R11: 0000000000000046 R12: 00000000001859fa R13: 000000000000006c R14: 0000000000000001 R15: ffffffff81668f90 FS: 00007f20be79b700(0000) GS:ffff8800bf300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f143453c000 CR3: 0000000012f19000 CR4: 00000000000007e0 Stack: ffffffff811df878 0000000000002710 0000000000000008 000000000000006c 0000000000000001 ffff8800bf303b58 ffffffff811df814 ffff8800bf303b68 ffffffff811df83d ffff8800bf303b88 ffffffff81025de1 0000000080010002 Call Trace: [] ? delay_tsc+0x18/0xa2 [] __delay+0xa/0xc [] __const_udelay+0x27/0x29 [] arch_trigger_all_cpu_backtrace+0xa8/0xd2 [] sysrq_handle_showallcpus+0xe/0x10 [] __handle_sysrq+0x94/0x126 [] sysrq_filter+0xee/0x287 [] input_to_handler+0x5e/0xcb [] input_pass_values.part.3+0x76/0x134 [] input_handle_event+0x457/0x46d [] input_event+0x55/0x6f [] input_sync+0xf/0x11 [] atkbd_interrupt+0x4d5/0x595 [] serio_interrupt+0x43/0x7d [] i8042_interrupt+0x292/0x2a8 [] ? tick_sched_do_timer+0x33/0x33 [] handle_irq_event_percpu+0x44/0x19f [] handle_irq_event+0x3c/0x5c [] ? apic_eoi+0x18/0x1a [] handle_edge_irq+0x95/0xae [] handle_irq+0x158/0x16d [] ? get_parent_ip+0xe/0x3e [] do_IRQ+0x58/0xda [] common_interrupt+0x6a/0x6a [] ? preempt_schedule_irq+0x3c/0x59 [] ? __zone_watermark_ok+0x66/0x85 [] zone_watermark_ok+0x1a/0x1c [] compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x5f0/0x799 [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? new_sync_read+0x74/0x98 [] ? fsnotify_access+0x5a/0x63 [] ? vfs_read+0xac/0xd2 [] ? fdput_pos.isra.13+0x29/0x30 [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: 8b 45 00 48 8b 00 48 8b 58 08 48 89 df e8 15 f4 00 00 85 c0 74 0e 48 8b 45 00 48 8b 00 48 8b 00 48 8b 58 08 5a 48 89 d8 5b 5d c3 <55> 48 89 e5 53 89 fb 41 50 65 01 3c 25 90 b8 00 00 83 3d c1 3d NMI backtrace for cpu 0 CPU: 0 PID: 7356 Comm: kwin Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff8800b8c23f00 ti: ffff88009b1f8000 task.ti: ffff88009b1f8000 RIP: 0010:[] [] compact_zone+0x1fa/0x4b2 RSP: 0000:ffff88009b1fba38 EFLAGS: 00000217 RAX: 00000000000bf600 RBX: ffffffff8168be40 RCX: ffff88009b1fba09 RDX: 0000000000000000 RSI: 0000000000000009 RDI: ffff8800b8c23f00 RBP: ffff88009b1fba98 R08: 0000000000000000 R09: fffffffffffffefb R10: 0000000000000038 R11: ffffffff8168be40 R12: 00000000000bf800 R13: 00000000000bf600 R14: ffff88009b1fbab8 R15: 0000160000000000 FS: 00007f445c0f17c0(0000) GS:ffff8800bf200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000003a5b1d8 CR3: 00000000a6d15000 CR4: 00000000000007f0 Stack: ffff8800354be660 ffffea0002fd0000 0000000000000020 ffff8800b8c23f00 0000000000000004 ffff88009b1fbac8 ffff8800a6d1a800 0000000000000000 0000000000000009 ffff88009b1fbcec 0000000000000002 0000000000000000 Call Trace: [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x409/0x799 [] ? anon_vma_prepare+0x2b/0x12c [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? set_next_entity+0x3a/0x63 [] ? debug_smp_processor_id+0x17/0x19 [] ? __switch_to+0x33f/0x49c [] ? _raw_spin_unlock_irq+0x14/0x27 [] ? debug_smp_processor_id+0x17/0x19 [] ? __schedule+0x2d9/0x451 [] ? SyS_mmap_pgoff+0x183/0x1cf [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: 00 48 8b 45 b8 f6 40 16 04 0f 85 3e 01 00 00 c6 83 7c 05 00 00 01 e9 32 01 00 00 41 8b 76 48 83 fe ff 0f 84 b4 01 00 00 40 88 f1 01 00 00 00 45 31 c0 d3 e2 48 89 df 31 c9 48 63 d2 48 03 53 SysRq : Show backtrace of all active CPUs sending NMI to all CPUs: NMI backtrace for cpu 1 CPU: 1 PID: 7037 Comm: urpmq Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff88000387de80 ti: ffff88007dddc000 task.ti: ffff88007dddc000 RIP: 0010:[] [] __const_udelay+0x15/0x29 RSP: 0000:ffff8800bf303b68 EFLAGS: 00000006 RAX: 0000000001062560 RBX: 0000000000002710 RCX: 0000000000000007 RDX: 00000000001859ed RSI: 0000000000000c00 RDI: 0000000000418958 RBP: ffff8800bf303b68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000046 R11: 0000000000000046 R12: 0000000000000008 R13: 000000000000006c R14: 0000000000000001 R15: ffffffff81668f90 FS: 00007f20be79b700(0000) GS:ffff8800bf300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f143453c000 CR3: 0000000012f19000 CR4: 00000000000007e0 Stack: ffff8800bf303b88 ffffffff81025de1 0000000080010002 ffffffff816692b0 ffff8800bf303b98 ffffffff8126bc4f ffff8800bf303bc8 ffffffff8126c186 ffff88003780c000 0000000000000001 0000000000000026 ffff88003780c001 Call Trace: [] arch_trigger_all_cpu_backtrace+0xa8/0xd2 [] sysrq_handle_showallcpus+0xe/0x10 [] __handle_sysrq+0x94/0x126 [] sysrq_filter+0xee/0x287 [] input_to_handler+0x5e/0xcb [] input_pass_values.part.3+0x76/0x134 [] input_handle_event+0x457/0x46d [] input_event+0x55/0x6f [] input_sync+0xf/0x11 [] atkbd_interrupt+0x4d5/0x595 [] serio_interrupt+0x43/0x7d [] i8042_interrupt+0x292/0x2a8 [] ? tick_sched_do_timer+0x33/0x33 [] handle_irq_event_percpu+0x44/0x19f [] handle_irq_event+0x3c/0x5c [] ? apic_eoi+0x18/0x1a [] handle_edge_irq+0x95/0xae [] handle_irq+0x158/0x16d [] ? get_parent_ip+0xe/0x3e [] do_IRQ+0x58/0xda [] common_interrupt+0x6a/0x6a [] ? __zone_watermark_ok+0x6e/0x85 [] zone_watermark_ok+0x1a/0x1c [] compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x5f0/0x799 [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? new_sync_read+0x74/0x98 [] ? fsnotify_access+0x5a/0x63 [] ? vfs_read+0xac/0xd2 [] ? fdput_pos.isra.13+0x29/0x30 [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: 48 ff c8 75 fb 48 ff c8 5d c3 55 48 89 e5 ff 15 a4 0c 48 00 5d c3 55 48 8d 04 bd 00 00 00 00 48 89 e5 65 48 8b 14 25 20 26 01 00 <48> 69 d2 fa 00 00 00 f7 e2 48 8d 7a 01 e8 cd ff ff ff 5d c3 48 NMI backtrace for cpu 0 CPU: 0 PID: 7356 Comm: kwin Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff8800b8c23f00 ti: ffff88009b1f8000 task.ti: ffff88009b1f8000 RIP: 0010:[] [] __zone_watermark_ok+0x5d/0x85 RSP: 0000:ffff88009b1fba10 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000007 RDX: 0000000000000f00 RSI: 0000000000000009 RDI: ffffffff8168be40 RBP: ffff88009b1fba18 R08: 0000000000000000 R09: 00000000000006fd R10: 0000000000000071 R11: ffffffff8168be40 R12: 00000000000bf800 R13: 00000000000bf600 R14: ffff88009b1fbab8 R15: 0000160000000000 FS: 00007f445c0f17c0(0000) GS:ffff8800bf200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f26fa192000 CR3: 00000000a6d15000 CR4: 00000000000007f0 Stack: ffffffff8168be40 ffff88009b1fba28 ffffffff810d839e ffff88009b1fba98 ffffffff810ef3d7 ffff8800354be660 ffffea0002fd0000 0000000000000020 ffff8800b8c23f00 0000000000000004 ffff88009b1fbac8 ffff8800a6d1a800 Call Trace: [] zone_watermark_ok+0x1a/0x1c [] compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x409/0x799 [] ? anon_vma_prepare+0x2b/0x12c [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? set_next_entity+0x3a/0x63 [] ? debug_smp_processor_id+0x17/0x19 [] ? __switch_to+0x33f/0x49c [] ? _raw_spin_unlock_irq+0x14/0x27 [] ? debug_smp_processor_id+0x17/0x19 [] ? __schedule+0x2d9/0x451 [] ? SyS_mmap_pgoff+0x183/0x1cf [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: c2 41 80 e0 10 74 11 4c 89 d0 41 b8 04 00 00 00 48 99 49 f7 f8 49 29 c2 4c 89 d2 31 c0 31 c9 48 03 54 df 18 49 39 d1 7e 27 39 ce <76> 21 48 6b d1 58 49 d1 fa 48 8b 94 17 28 01 00 00 48 d3 e2 48 SysRq : Show backtrace of all active CPUs sending NMI to all CPUs: NMI backtrace for cpu 0 CPU: 0 PID: 7356 Comm: kwin Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff8800b8c23f00 ti: ffff88009b1f8000 task.ti: ffff88009b1f8000 RIP: 0010:[] [] delay_tsc+0x1/0xa2 RSP: 0000:ffff8800bf203b48 EFLAGS: 00000807 RAX: 0000000026e004c0 RBX: 0000000000002710 RCX: 0000000000000007 RDX: 00000000001859f9 RSI: 0000000000000c00 RDI: 00000000001859fa RBP: ffff8800bf203b58 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000046 R11: 0000000000000046 R12: 0000000000000008 R13: 000000000000006c R14: 0000000000000001 R15: ffffffff81668f90 FS: 00007f445c0f17c0(0000) GS:ffff8800bf200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007ffc189c5640 CR3: 00000000a6d15000 CR4: 00000000000007f0 Stack: ffff8800bf203b58 ffffffff811df814 ffff8800bf203b68 ffffffff811df83d ffff8800bf203b88 ffffffff81025de1 0000000080010002 ffffffff816692b0 ffff8800bf203b98 ffffffff8126bc4f ffff8800bf203bc8 ffffffff8126c186 Call Trace: [] ? __delay+0xa/0xc [] __const_udelay+0x27/0x29 [] arch_trigger_all_cpu_backtrace+0xa8/0xd2 [] sysrq_handle_showallcpus+0xe/0x10 [] __handle_sysrq+0x94/0x126 [] sysrq_filter+0xee/0x287 [] input_to_handler+0x5e/0xcb [] input_pass_values.part.3+0x76/0x134 [] input_handle_event+0x457/0x46d [] input_event+0x55/0x6f [] input_sync+0xf/0x11 [] atkbd_interrupt+0x4d5/0x595 [] serio_interrupt+0x43/0x7d [] i8042_interrupt+0x292/0x2a8 [] ? tick_sched_do_timer+0x33/0x33 [] handle_irq_event_percpu+0x44/0x19f [] handle_irq_event+0x3c/0x5c [] ? apic_eoi+0x18/0x1a [] handle_edge_irq+0x95/0xae [] handle_irq+0x158/0x16d [] ? get_parent_ip+0xe/0x3e [] do_IRQ+0x58/0xda [] common_interrupt+0x6a/0x6a [] ? retint_kernel+0x20/0x30 [] ? __zone_watermark_ok+0x17/0x85 [] zone_watermark_ok+0x1a/0x1c [] compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x409/0x799 [] ? anon_vma_prepare+0x2b/0x12c [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? set_next_entity+0x3a/0x63 [] ? debug_smp_processor_id+0x17/0x19 [] ? __switch_to+0x33f/0x49c [] ? _raw_spin_unlock_irq+0x14/0x27 [] ? debug_smp_processor_id+0x17/0x19 [] ? __schedule+0x2d9/0x451 [] ? SyS_mmap_pgoff+0x183/0x1cf [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: 7a 01 e8 cd ff ff ff 5d c3 48 69 ff c7 10 00 00 55 48 89 e5 e8 c7 ff ff ff 5d c3 55 48 8d 3c bf 48 89 e5 e8 b8 ff ff ff 5d c3 55 <48> 89 e5 41 56 41 55 41 54 41 89 fc bf 01 00 00 00 53 e8 f7 6f NMI backtrace for cpu 1 CPU: 1 PID: 7037 Comm: urpmq Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff88000387de80 ti: ffff88007dddc000 task.ti: ffff88007dddc000 RIP: 0010:[] [] __zone_watermark_ok+0x5d/0x85 RSP: 0000:ffff88007dddfa10 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000007 RDX: 0000000000000f00 RSI: 0000000000000009 RDI: ffffffff8168be40 RBP: ffff88007dddfa18 R08: 0000000000000000 R09: 0000000000000701 R10: 0000000000000071 R11: ffffffff8168be40 R12: 00000000000bf800 R13: 00000000000bf600 R14: ffff88007dddfab8 R15: 0000160000000000 FS: 00007f20be79b700(0000) GS:ffff8800bf300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f143453c000 CR3: 0000000012f19000 CR4: 00000000000007e0 Stack: ffffffff8168be40 ffff88007dddfa28 ffffffff810d839e ffff88007dddfa98 ffffffff810ef3d7 ffff8800bf312e80 ffffea0002fd0000 0000000000000020 ffff88000387de80 0000000000000004 ffff88007dddfac8 0000000000000000 Call Trace: [] zone_watermark_ok+0x1a/0x1c [] compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [] __alloc_pages_nodemask+0x5f0/0x799 [] do_huge_pmd_anonymous_page+0x13c/0x255 [] handle_mm_fault+0x112/0x808 [] __do_page_fault+0x27a/0x358 [] ? new_sync_read+0x74/0x98 [] ? fsnotify_access+0x5a/0x63 [] ? vfs_read+0xac/0xd2 [] ? fdput_pos.isra.13+0x29/0x30 [] do_page_fault+0xc/0xe [] page_fault+0x22/0x30 Code: c2 41 80 e0 10 74 11 4c 89 d0 41 b8 04 00 00 00 48 99 49 f7 f8 49 29 c2 4c 89 d2 31 c0 31 c9 48 03 54 df 18 49 39 d1 7e 27 39 ce <76> 21 48 6b d1 58 49 d1 fa 48 8b 94 17 28 01 00 00 48 d3 e2 48 SysRq : Show backtrace of all active CPUs sending NMI to all CPUs: NMI backtrace for cpu 0 CPU: 0 PID: 7037 Comm: urpmq Not tainted 3.18.0-rc3+ #46 Hardware name: Acer TravelMate 5720 /Columbia , BIOS V1.34 04/15/2008 task: ffff88000387de80 ti: ffff88007dddc000 task.ti: ffff88007dddc000 RIP: 0010:[] [] __const_udelay+0x15/0x29 RSP: 0000:ffff8800bf203b68 EFLAGS: 00000006 RAX: 0000000001062560 RBX: 0000000000002710 RCX: 0000000000000007 RDX: 00000000001859ed RSI: 0000000000000c00 RDI: 0000000000418958 RBP: ffff8800bf203b68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000046 R11: 0000000000000046 R12: 0000000000000008 R13: 000000000000006c R14: 0000000000000001 R15: ffffffff81668f90 FS: 00007f20be79b700(0000) GS:ffff8800bf200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007faaeda2a000 CR3: 0000000012f19000 CR4: 00000000000007f0 Stack: ffff8800bf203b88 ffffffff81025de1 0000000080010002 ffffffff816692b0 ffff8800bf203b98 ffffffff8126bc4f ffff8800bf203bc8 ffffffff8126c186 ffff88003780c000 0000000000000001 0000000000000026 ffff88003780c001 Call Trace: [] arch_trigger_all_cpu_backtrace+0xa8/0xd2 [] sysrq_handle_showallcpus+0xe/0x10 [] __handle_sysrq+0x94/0x126 [] sysrq_filter+0xee/0x287 [] input_to_handler+0x5e/0xcb [] input_pass_values.part.3+0x76/0x134 [] input_handle_event+0x457/0x46d [] input_event+0x55/0x6f [] input_sync+0xf/0x11 [] atkbd_interrupt+0x4d5/0x595 [] serio_interrupt+0x43/0x7d [] i8042_interrupt+0x292/0x2a8 [] ? tick_sched_do_timer+0x33/0x33 [] handle_irq_event_percpu+0x44/0x19f [] handle_irq_event+0x3c/0x5c [] ? apic_eoi+0x18/0x1a [] handle_edge_irq+0x95/0xae [] handle_irq+0x158/0x16d [] ? get_parent_ip+0xe/0x3e [] do_IRQ+0x58/0xda [] common_interrupt+0x6a/0x6a [] ? compact_zone+0x215/0x4b2 [] ? compact_zone+0x215/0x4b2 [] compact_zone_order+0x4c/0x5f [] try_to_compact_pages+0xc4/0x1d6 [] __alloc_pages_direct_compact+0x61/0x1bf [