https://bugzilla.kernel.org/show_bug.cgi?id=42703 Summary: random hangs on virtualization host Product: Virtualization Version: unspecified Kernel Version: 3.0.0-16 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm AssignedTo: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx ReportedBy: gbramdewilde@xxxxxxxxx Regression: No Hi, We are experiencing random system crashes on our ubuntu 11.10 server running an openstack / KVM cloud. Unfortunately we did not observe any specific behavior that trigers the problem, but I have collected a couple of stack traces. Running on a dell 710 dual Intel Xeon X5650 CPU's Please let me know if I can provide more information. Kind regards bram Jan 13 17:06:46 cmggcn01 kernel: [876590.142455] general protection fault: 0000 [#1] SMP Jan 13 17:06:46 cmggcn01 kernel: [876590.165966] CPU 4 Jan 13 17:06:46 cmggcn01 kernel: [876590.166135] Modules linked in: ebt_arp ebt_ip 8021q garp ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp kvm_intel kvm nbd vesafb ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi dcdbas dm_multipath psmouse serio_raw ghes hed acpi_power_meter bonding i7core_edac lp joydev parport edac_core ses enclosure usbhid hid megaraid_sas bnx2 Jan 13 17:06:46 cmggcn01 kernel: [876590.313703] Jan 13 17:06:46 cmggcn01 kernel: [876590.337109] Pid: 93, comm: ksmd Not tainted 3.0.0-14-server #23-Ubuntu Dell Inc. PowerEdge R710/0MD99X Jan 13 17:06:46 cmggcn01 kernel: [876590.362347] RIP: 0010:[<ffffffffa01b3411>] [<ffffffffa01b3411>] kvm_set_pte_rmapp+0x51/0x130 [kvm] Jan 13 17:06:46 cmggcn01 kernel: [876590.386424] RSP: 0018:ffff8817f4129bc0 EFLAGS: 00010202 Jan 13 17:06:46 cmggcn01 kernel: [876590.411497] RAX: 000088050d943ff8 RBX: 000088050d943ff8 RCX: ffffffffa01b33c0 Jan 13 17:06:46 cmggcn01 kernel: [876590.435831] RDX: ffff8817f4129c88 RSI: 0000000000000000 RDI: 000088050d943ff8 Jan 13 17:06:46 cmggcn01 kernel: [876590.460571] RBP: ffff8817f4129c00 R08: ffff880bf6012960 R09: 0000000000000100 Jan 13 17:06:46 cmggcn01 kernel: [876590.484258] R10: 00000000000000ab R11: 0000000000000002 R12: ffffc900288c3ff8 Jan 13 17:06:46 cmggcn01 kernel: [876590.507470] R13: ffff8817f4129c88 R14: ffff880b917d8000 R15: 00000000002f7279 Jan 13 17:06:46 cmggcn01 kernel: [876590.531508] FS: 0000000000000000(0000) GS:ffff88183fc40000(0000) knlGS:0000000000000000 Jan 13 17:06:46 cmggcn01 kernel: [876590.554747] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jan 13 17:06:46 cmggcn01 kernel: [876590.577706] CR2: 00007f3ac168a000 CR3: 0000000001c03000 CR4: 00000000000026e0 Jan 13 17:06:46 cmggcn01 kernel: [876590.602479] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 13 17:06:46 cmggcn01 kernel: [876590.624973] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jan 13 17:06:46 cmggcn01 kernel: [876590.647214] Process ksmd (pid: 93, threadinfo ffff8817f4128000, task ffff8817f63fdc80) Jan 13 17:06:46 cmggcn01 kernel: [876590.669444] Stack: Jan 13 17:06:46 cmggcn01 kernel: [876590.690742] ffff8817f4129c10 ffffffffa01b3409 000000000000008f ffff880b6bea70b0 Jan 13 17:06:46 cmggcn01 kernel: [876590.713167] 0000000000000002 00007f54c4050000 ffff880b6bea7000 000000000010d9ff Jan 13 17:06:46 cmggcn01 kernel: [876590.735595] ffff8817f4129c70 ffffffffa01b0dd9 ffff8817f4129c80 ffffffffa01b33c0 Jan 13 17:06:46 cmggcn01 kernel: [876590.758191] Call Trace: Jan 13 17:06:46 cmggcn01 kernel: [876590.780877] [<ffffffffa01b3409>] ? kvm_set_pte_rmapp+0x49/0x130 [kvm] Jan 13 17:06:46 cmggcn01 kernel: [876590.804088] [<ffffffffa01b0dd9>] kvm_handle_hva+0x99/0x180 [kvm] Jan 13 17:06:46 cmggcn01 kernel: [876590.829628] [<ffffffffa01b33c0>] ? rmap_write_protect+0x150/0x150 [kvm] Jan 13 17:06:46 cmggcn01 kernel: [876590.853510] [<ffffffffa01b7ad1>] kvm_set_spte_hva+0x21/0x30 [kvm] Jan 13 17:06:46 cmggcn01 kernel: [876590.876966] [<ffffffffa019591d>] kvm_mmu_notifier_change_pte+0x5d/0x90 [kvm] Jan 13 17:06:46 cmggcn01 kernel: [876590.901395] [<ffffffff8114d87e>] __mmu_notifier_change_pte+0x3e/0x80 Jan 13 17:06:46 cmggcn01 kernel: [876590.925191] [<ffffffff8114e07f>] write_protect_page+0x10f/0x170 Jan 13 17:06:46 cmggcn01 kernel: [876590.950156] [<ffffffff8114e2df>] ? replace_page+0x1ff/0x280 Jan 13 17:06:46 cmggcn01 kernel: [876590.974177] [<ffffffff8114e3e0>] try_to_merge_one_page+0x80/0x220 Jan 13 17:06:46 cmggcn01 kernel: [876590.999032] [<ffffffff8114e5f7>] try_to_merge_with_ksm_page+0x77/0xc0 Jan 13 17:06:46 cmggcn01 kernel: [876591.022944] [<ffffffff8114f616>] cmp_and_merge_page+0xe6/0x260 Jan 13 17:06:46 cmggcn01 kernel: [876591.046993] [<ffffffff8114f83f>] ksm_scan_thread+0xaf/0x2a0 Jan 13 17:06:46 cmggcn01 kernel: [876591.070807] [<ffffffff81081660>] ? add_wait_queue+0x60/0x60 Jan 13 17:06:46 cmggcn01 kernel: [876591.094345] [<ffffffff8114f790>] ? cmp_and_merge_page+0x260/0x260 Jan 13 17:06:46 cmggcn01 kernel: [876591.118363] [<ffffffff81080bbc>] kthread+0x8c/0xa0 Jan 13 17:06:46 cmggcn01 kernel: [876591.147851] [<ffffffff81609164>] kernel_thread_helper+0x4/0x10 Jan 13 17:06:46 cmggcn01 kernel: [876591.178092] [<ffffffff81080b30>] ? flush_kthread_worker+0xa0/0xa0 Jan 13 17:06:46 cmggcn01 kernel: [876591.203396] [<ffffffff81609160>] ? gs_change+0x13/0x13 Jan 13 17:06:46 cmggcn01 kernel: [876591.226913] Code: 0f 85 e8 00 00 00 48 89 f8 66 66 66 90 49 8b 3c 24 49 89 c7 31 f6 49 c1 e7 12 49 c1 ef 1e e8 f7 fd ff ff 48 85 c0 48 89 c3 74 77 Jan 13 17:06:46 cmggcn01 kernel: [876591.299573] RIP [<ffffffffa01b3411>] kvm_set_pte_rmapp+0x51/0x130 [kvm] Jan 13 17:06:46 cmggcn01 kernel: [876591.323386] RSP <ffff8817f4129bc0> Jan 13 17:06:46 cmggcn01 kernel: [876591.394334] ---[ end trace a6f88f15bc3d2aa0 ]--- Jan 13 17:07:46 cmggcn01 kernel: [876651.245759] INFO: rcu_sched_state detected stall on CPU 14 (t=15000 jiffies) Jan 13 17:07:46 cmggcn01 kernel: [876651.249812] INFO: rcu_sched_state detected stalls on CPUs/tasks: { 14} (detected by 22, t=15002 jiffies) Jan 16 12:03:42 cmggcn01 kernel: [232444.624348] general protection fault: 0000 [#1] SMP Jan 16 12:03:42 cmggcn01 kernel: [232444.624791] CPU 14 Jan 16 12:03:42 cmggcn01 kernel: [232444.624971] Modules linked in: ebt_arp ebt_ip 8021q garp ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp kvm_intel kvm nbd ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi vesafb bonding psmouse ghes acpi_power_meter dcdbas dm_multipath joydev hed i7core_edac serio_raw edac_core lp parport ses enclosure usbhid hid megaraid_sas bnx2 Jan 16 12:03:42 cmggcn01 kernel: [232444.630415] Jan 16 12:03:42 cmggcn01 kernel: [232444.630541] Pid: 92, comm: ksmd Not tainted 3.0.0-14-server #23-Ubuntu Dell Inc. PowerEdge R710/0MD99X Jan 16 12:03:42 cmggcn01 kernel: [232444.631356] RIP: 0010:[<ffffffff8114ecee>] [<ffffffff8114ecee>] remove_rmap_item_from_tree+0x9e/0x150 Jan 16 12:03:42 cmggcn01 kernel: [232444.632148] RSP: 0018:ffff8817f3e1fe10 EFLAGS: 00010286 Jan 16 12:03:42 cmggcn01 kernel: [232444.632589] RAX: ffff8817bbee8c30 RBX: ffff880bf5847fc0 RCX: ffff880bf56f8463 Jan 16 12:03:42 cmggcn01 kernel: [232444.633188] RDX: 0000880ba0f4d030 RSI: 0000000000020072 RDI: ffffea0028d70730 Jan 16 12:03:42 cmggcn01 kernel: [232444.633785] RBP: ffff8817f3e1fe30 R08: ffffea0028d70738 R09: ffff880c3fff6928 Jan 16 12:03:42 cmggcn01 kernel: [232444.634383] R10: 00000000000000b7 R11: ffffea0028e44180 R12: ffff880bf56f8460 Jan 16 12:03:42 cmggcn01 kernel: [232444.634980] R13: ffffea0028d70730 R14: ffff8817f3e1fe98 R15: ffff8817f3e20000 Jan 16 12:03:42 cmggcn01 kernel: [232444.635406] FS: 0000000000000000(0000) GS:ffff88183fce0000(0000) knlGS:0000000000000000 Jan 16 12:03:42 cmggcn01 kernel: [232444.635858] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jan 16 12:03:42 cmggcn01 kernel: [232444.636340] CR2: 0000000001c1be08 CR3: 0000000001c03000 CR4: 00000000000026e0 Jan 16 12:03:42 cmggcn01 kernel: [232444.636939] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 16 12:03:42 cmggcn01 kernel: [232444.637535] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jan 16 12:03:42 cmggcn01 kernel: [232444.638134] Process ksmd (pid: 92, threadinfo ffff8817f3e1e000, task ffff8817f3e20000) Jan 16 12:03:42 cmggcn01 kernel: [232444.638949] Stack: Jan 16 12:03:42 cmggcn01 kernel: [232444.639208] ffff880bf60e4980 ffff8817f3e20000 ffffea0022feb118 ffff880bf5847fc0 Jan 16 12:03:42 cmggcn01 kernel: [232444.640235] ffff8817f3e1fe70 ffffffff8114f55a ffff8817f3e1fe60 0000000000000000 Jan 16 12:03:42 cmggcn01 kernel: [232444.640953] ffff8817f3e20000 000000000000005b ffff8817f3e20000 ffff8817f3e1fe98 Jan 16 12:03:42 cmggcn01 kernel: [232444.641622] Call Trace: Jan 16 12:03:42 cmggcn01 kernel: [232444.641828] [<ffffffff8114f55a>] cmp_and_merge_page+0x2a/0x260 Jan 16 12:03:42 cmggcn01 kernel: [232444.642325] [<ffffffff8114f83f>] ksm_scan_thread+0xaf/0x2a0 Jan 16 12:03:42 cmggcn01 kernel: [232444.642796] [<ffffffff81081660>] ? add_wait_queue+0x60/0x60 Jan 16 12:03:42 cmggcn01 kernel: [232444.643269] [<ffffffff8114f790>] ? cmp_and_merge_page+0x260/0x260 Jan 16 12:03:42 cmggcn01 kernel: [232444.643785] [<ffffffff81080bbc>] kthread+0x8c/0xa0 Jan 16 12:03:42 cmggcn01 kernel: [232444.644198] [<ffffffff81609164>] kernel_thread_helper+0x4/0x10 Jan 16 12:03:42 cmggcn01 kernel: [232444.644690] [<ffffffff81080b30>] ? flush_kthread_worker+0xa0/0xa0 Jan 16 12:03:42 cmggcn01 kernel: [232444.645207] [<ffffffff81609160>] ? gs_change+0x13/0x13 Jan 16 12:03:42 cmggcn01 kernel: [232444.645642] Code: 28 4c 89 e7 e8 84 fc ff ff 48 85 c0 49 89 c5 74 d2 f0 0f ba 28 00 19 c0 85 c0 0f 85 a1 00 00 00 48 8b 43 30 48 8b 53 38 48 85 c0 Jan 16 12:03:42 cmggcn01 kernel: [232444.648047] RIP [<ffffffff8114ecee>] remove_rmap_item_from_tree+0x9e/0x150 Jan 16 12:03:42 cmggcn01 kernel: [232444.648721] RSP <ffff8817f3e1fe10> Jan 16 12:03:42 cmggcn01 kernel: [232444.695308] ---[ end trace 1466b29b5c8949e3 ]--- Jan 18 11:52:42 cmggcn01 kernel: [89218.740228] general protection fault: 0000 [#1] SMP Jan 18 11:52:42 cmggcn01 kernel: [89218.740662] CPU 3 Jan 18 11:52:42 cmggcn01 kernel: [89218.740823] Modules linked in: ebt_arp ebt_ip 8021q garp ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp kvm_intel kvm nbd vesafb ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi psmouse dcdbas dm_multipath serio_raw joydev ghes hed acpi_power_meter bonding lp parport i7core_edac edac_core ses enclosure usbhid hid megaraid_sas bnx2 Jan 18 11:52:42 cmggcn01 kernel: [89218.745746] Jan 18 11:52:42 cmggcn01 kernel: [89218.745869] Pid: 92, comm: ksmd Not tainted 3.0.0-14-server #23-Ubuntu Dell Inc. PowerEdge R710/0MD99X Jan 18 11:52:42 cmggcn01 kernel: [89218.746672] RIP: 0010:[<ffffffff812edf23>] [<ffffffff812edf23>] rb_insert_color+0x43/0x150 Jan 18 11:52:42 cmggcn01 kernel: [89218.747377] RSP: 0018:ffff8817f3e4ddb8 EFLAGS: 00010206 Jan 18 11:52:42 cmggcn01 kernel: [89218.748058] RAX: ffff88135bb7ffe8 RBX: ffff88135bb7ffe8 RCX: 0000000000000008 Jan 18 11:52:42 cmggcn01 kernel: [89218.748982] RDX: ffff8809af4934e8 RSI: ffffffff81ee9840 RDI: ffff88098e40d9e8 Jan 18 11:52:42 cmggcn01 kernel: [89218.749617] RBP: ffff8817f3e4dde0 R08: 0000000000000079 R09: 0000000000000029 Jan 18 11:52:42 cmggcn01 kernel: [89218.750208] R10: ffff880aac5be000 R11: 0000000000000001 R12: ffff8809af4934e8 Jan 18 11:52:42 cmggcn01 kernel: [89218.750794] R13: 00008809ae4a5ae8 R14: ffff88098e40d9e8 R15: ffffffff81ee9840 Jan 18 11:52:42 cmggcn01 kernel: [89218.751386] FS: 0000000000000000(0000) GS:ffff880c3fc20000(0000) knlGS:0000000000000000 Jan 18 11:52:42 cmggcn01 kernel: [89218.752054] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jan 18 11:52:42 cmggcn01 kernel: [89218.752526] CR2: 00007f819ff52000 CR3: 0000000001c03000 CR4: 00000000000026e0 Jan 18 11:52:42 cmggcn01 kernel: [89218.753116] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 18 11:52:42 cmggcn01 kernel: [89218.753708] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jan 18 11:52:42 cmggcn01 kernel: [89218.754296] Process ksmd (pid: 92, threadinfo ffff8817f3e4c000, task ffff8817f63a9720) Jan 18 11:52:42 cmggcn01 kernel: [89218.754956] Stack: Jan 18 11:52:42 cmggcn01 kernel: [89218.755120] ffffea00255b4190 ffff88098e40d9c0 ffffea00264a9c80 ffff8809af4934f0 Jan 18 11:52:42 cmggcn01 kernel: [89218.755785] 0000000000000000 ffff8817f3e4de30 ffffffff8114e855 ffff8809af4934e8 Jan 18 11:52:42 cmggcn01 kernel: [89218.756276] ffff8817f3e4de48 ffff8817f3e4de30 ffffea0052a42d28 ffffea00255b4190 Jan 18 11:52:42 cmggcn01 kernel: [89218.756711] Call Trace: Jan 18 11:52:42 cmggcn01 kernel: [89218.756892] [<ffffffff8114e855>] unstable_tree_search_insert+0xe5/0x150 Jan 18 11:52:42 cmggcn01 kernel: [89218.757499] [<ffffffff8114f690>] cmp_and_merge_page+0x160/0x260 Jan 18 11:52:42 cmggcn01 kernel: [89218.758284] [<ffffffff8114f83f>] ksm_scan_thread+0xaf/0x2a0 Jan 18 11:52:42 cmggcn01 kernel: [89218.759010] [<ffffffff81081660>] ? add_wait_queue+0x60/0x60 Jan 18 11:52:42 cmggcn01 kernel: [89218.759524] [<ffffffff8114f790>] ? cmp_and_merge_page+0x260/0x260 Jan 18 11:52:42 cmggcn01 kernel: [89218.760037] [<ffffffff81080bbc>] kthread+0x8c/0xa0 Jan 18 11:52:42 cmggcn01 kernel: [89218.760438] [<ffffffff81609164>] kernel_thread_helper+0x4/0x10 Jan 18 11:52:42 cmggcn01 kernel: [89218.760927] [<ffffffff81080b30>] ? flush_kthread_worker+0xa0/0xa0 Jan 18 11:52:42 cmggcn01 kernel: [89218.761439] [<ffffffff81609160>] ? gs_change+0x13/0x13 Jan 18 11:52:42 cmggcn01 kernel: [89218.761862] Code: 0f 1f 84 00 00 00 00 00 49 83 e4 fc 74 4a 49 8b 04 24 a8 01 75 42 48 89 c3 48 83 e3 fc 4c 8b 6b 10 4d 39 e5 74 7a 4d 85 ed 74 45 Jan 18 11:52:42 cmggcn01 kernel: [89218.764260] RIP [<ffffffff812edf23>] rb_insert_color+0x43/0x150 Jan 18 11:52:42 cmggcn01 kernel: [89218.764772] RSP <ffff8817f3e4ddb8> Jan 18 11:52:42 cmggcn01 kernel: [89218.811669] ---[ end trace e5a6d0f7fdfec15f ]--- Jan 27 13:41:28 cmggcn01 kernel: [871350.761867] general protection fault: 0000 [#2] SMP Jan 27 13:41:28 cmggcn01 kernel: [871350.790117] CPU 14 Jan 27 13:41:28 cmggcn01 kernel: [871350.790387] Modules linked in: btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs ebt_arp ebt_ip 8021q garp ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp kvm_intel kvm nbd vesafb ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi psmouse dcdbas dm_multipath serio_raw joydev ghes hed acpi_power_meter bonding lp parport i7core_edac edac_core ses enclosure usbhid hid megaraid_sas bnx2 Jan 27 13:41:28 cmggcn01 kernel: [871351.005151] Jan 27 13:41:28 cmggcn01 kernel: [871351.036187] Pid: 90, comm: kswapd0 Tainted: G D 3.0.0-14-server #23-Ubuntu Dell Inc. PowerEdge R710/0MD99X Jan 27 13:41:28 cmggcn01 kernel: [871351.072809] RIP: 0010:[<ffffffffa01a5890>] [<ffffffffa01a5890>] kvm_unmap_rmapp+0x20/0x60 [kvm] Jan 27 13:41:28 cmggcn01 kernel: [871351.105190] RSP: 0018:ffff8817f3e27a60 EFLAGS: 00010202 Jan 27 13:41:28 cmggcn01 kernel: [871351.141329] RAX: 00008817f5d067f8 RBX: ffffc9001fd41ff8 RCX: ffffffffa01a58d0 Jan 27 13:41:28 cmggcn01 kernel: [871351.179076] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00008817f5d067f8 Jan 27 13:41:28 cmggcn01 kernel: [871351.212086] RBP: ffff8817f3e27a80 R08: ffff8817f315b3e0 R09: 0000000000000100 Jan 27 13:41:28 cmggcn01 kernel: [871351.245788] R10: 000000000000000e R11: 0000000000000002 R12: ffff8817f2f0c000 Jan 27 13:41:28 cmggcn01 kernel: [871351.277514] R13: 0000000000000000 R14: ffff880be235e000 R15: 00000000000d3cff Jan 27 13:41:28 cmggcn01 kernel: [871351.308421] FS: 0000000000000000(0000) GS:ffff88183fce0000(0000) knlGS:0000000000000000 Jan 27 13:41:28 cmggcn01 kernel: [871351.339685] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jan 27 13:41:28 cmggcn01 kernel: [871351.370089] CR2: 00007f8836442000 CR3: 0000000001c03000 CR4: 00000000000026e0 Jan 27 13:41:28 cmggcn01 kernel: [871351.399771] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 27 13:41:28 cmggcn01 kernel: [871351.428208] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jan 27 13:41:28 cmggcn01 kernel: [871351.456153] Process kswapd0 (pid: 90, threadinfo ffff8817f3e26000, task ffff8817f63ac560) Jan 27 13:41:28 cmggcn01 kernel: [871351.484943] Stack: Jan 27 13:41:28 cmggcn01 kernel: [871351.512984] 0000000000000000 ffffc9001fd41ff8 0000000000000001 00007f834a87e000 Jan 27 13:41:28 cmggcn01 kernel: [871351.542025] ffff8817f3e27aa0 ffffffffa01a5945 ffff880be235e060 0000000000000001 Jan 27 13:41:28 cmggcn01 kernel: [871351.571050] ffff8817f3e27b10 ffffffffa01a1dd9 ffff8817f3e27ae0 ffffffffa01a58d0 Jan 27 13:41:28 cmggcn01 kernel: [871351.600455] Call Trace: Jan 27 13:41:28 cmggcn01 kernel: [871351.628903] [<ffffffffa01a5945>] kvm_age_rmapp+0x75/0x90 [kvm] Jan 27 13:41:28 cmggcn01 kernel: [871351.659242] [<ffffffffa01a1dd9>] kvm_handle_hva+0x99/0x180 [kvm] Jan 27 13:41:28 cmggcn01 kernel: [871351.687386] [<ffffffffa01a58d0>] ? kvm_unmap_rmapp+0x60/0x60 [kvm] Jan 27 13:41:28 cmggcn01 kernel: [871351.716053] [<ffffffffa01a8af7>] kvm_age_hva+0x17/0x20 [kvm] Jan 27 13:41:28 cmggcn01 kernel: [871351.746652] [<ffffffffa018a4dd>] kvm_mmu_notifier_clear_flush_young+0x4d/0x90 [kvm] Jan 27 13:41:28 cmggcn01 kernel: [871351.774490] [<ffffffff8114d7b8>] __mmu_notifier_clear_flush_young+0x48/0x60 Jan 27 13:41:28 cmggcn01 kernel: [871351.801948] [<ffffffff81138f1b>] page_referenced_one+0x18b/0x1f0 Jan 27 13:41:28 cmggcn01 kernel: [871351.827654] [<ffffffff8113a8a5>] page_referenced_anon+0xd5/0x130 Jan 27 13:41:28 cmggcn01 kernel: [871351.852371] [<ffffffff8113a9c8>] page_referenced+0xc8/0xf0 Jan 27 13:41:28 cmggcn01 kernel: [871351.875896] [<ffffffff8111cbe9>] shrink_active_list.isra.50+0x1d9/0x370 Jan 27 13:41:28 cmggcn01 kernel: [871351.899681] [<ffffffff811146cd>] ? throttle_vm_writeout+0x3d/0xa0 Jan 27 13:41:28 cmggcn01 kernel: [871351.922135] [<ffffffff8111dd8b>] balance_pgdat+0x16b/0x6f0 Jan 27 13:41:28 cmggcn01 kernel: [871351.944598] [<ffffffff8111e3fa>] kswapd+0xea/0x1f0 Jan 27 13:41:28 cmggcn01 kernel: [871351.967441] [<ffffffff8111e310>] ? balance_pgdat+0x6f0/0x6f0 Jan 27 13:41:28 cmggcn01 kernel: [871351.989825] [<ffffffff81080bbc>] kthread+0x8c/0xa0 Jan 27 13:41:28 cmggcn01 kernel: [871352.012498] [<ffffffff81609164>] kernel_thread_helper+0x4/0x10 Jan 27 13:41:28 cmggcn01 kernel: [871352.035112] [<ffffffff81080b30>] ? flush_kthread_worker+0xa0/0xa0 Jan 27 13:41:28 cmggcn01 kernel: [871352.057481] [<ffffffff81609160>] ? gs_change+0x13/0x13 Jan 27 13:41:28 cmggcn01 kernel: [871352.080582] Code: e7 d0 e8 e0 66 90 e9 a2 fe ff ff 55 48 89 e5 41 55 41 54 53 48 83 ec 08 66 66 66 66 90 45 31 ed 49 89 fc 48 89 f3 eb 20 0f 1f 00 <f6> 00 01 74 35 48 8b 15 74 7a 02 00 48 89 c6 4c 89 e7 41 bd 01 Jan 27 13:41:28 cmggcn01 kernel: [871352.128618] RIP [<ffffffffa01a5890>] kvm_unmap_rmapp+0x20/0x60 [kvm] Jan 27 13:41:28 cmggcn01 kernel: [871352.152218] RSP <ffff8817f3e27a60> Jan 27 13:41:28 cmggcn01 kernel: [871352.221414] ---[ end trace e5a6d0f7fdfec160 ]--- Jan 27 13:42:28 cmggcn01 kernel: [871412.095485] INFO: rcu_sched_state detected stall on CPU 0 (t=15000 jiffies) Jan 27 13:42:28 cmggcn01 kernel: [871412.095493] INFO: rcu_sched_state detected stall on CPU 17 (t=15000 jiffies) Jan 27 13:45:29 cmggcn01 kernel: [871591.757675] INFO: rcu_sched_state detected stall on CPU 17 (t=60030 jiffies) Jan 27 13:45:29 cmggcn01 kernel: [871591.757686] INFO: rcu_sched_state detected stall on CPU 0 (t=60030 jiffies) Jan 27 13:48:29 cmggcn01 kernel: [871771.419867] INFO: rcu_sched_state detected stall on CPU 0 (t=105060 jiffies) Jan 27 13:48:29 cmggcn01 kernel: [871771.419878] INFO: rcu_sched_state detected stall on CPU 17 (t=105060 jiffies) -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
