We are seeing following errors on two of our nodes which brings the node to freeze.
Node 1: May 8 11:19:05 kernel: [89019.043852] Pid: 15145, comm: python Tainted: GB 2.6.32-344-ec2 #46-Ubuntu May 8 11:19:05 kernel: [89019.043852] Call Trace: May 8 11:19:05 kernel: [89019.043852] [<ffffffff810b2d90>] bad_page+0xd0/0x130 May 8 11:19:05 kernel: [89019.043852] [<ffffffff810b5964>] free_hot_cold_page+0x2a4/0x300 May 8 11:19:05 kernel: [89019.043852] [<ffffffff810b5a11>] __pagevec_free+0x51/0xb0 May 8 11:19:05 kernel: [89019.043852] [<ffffffff8101d472>] ? ___pte_free_tlb+0x22/0x90 May 8 11:19:05 kernel: [89019.043852] [<ffffffff810b853c>] release_pages+0x22c/0x280 May 8 11:19:05 kernel: [89019.043852] [<ffffffff810de6e4>] free_pages_and_swap_cache+0xb4/0xe0 May 8 11:19:05 kernel: [89019.043852] [<ffffffff810d40bf>] unmap_region+0x14f/0x170 May 8 11:19:05 kernel: [89019.043852] [<ffffffff810d46c5>] do_munmap+0x295/0x3b0 May 8 11:19:05 kernel: [89019.043852] [<ffffffff810d4831>] sys_munmap+0x51/0x80 May 8 11:19:05 kernel: [89019.043852] [<ffffffff81009bb8>] system_call_fastpath+0x16/0x1b May 8 11:19:05 kernel: [89019.043852] [<ffffffff81009b50>] ? system_call+0x0/0x52 Node 2: May 8 07:58:42 kernel: [1986597.770228] CPU 7 May 8 07:58:42 kernel: [1986597.770231] Modules linked in: ipv6 May 8 07:58:42 kernel: [1986597.770237] Pid: 25928, comm: python Not tainted 2.6.32-344-ec2 #46-Ubuntu May 8 07:58:42 kernel: [1986597.770240] RIP: e030:[<ffffffff810b521f>] [<ffffffff810b521f>] free_pcppages_bulk+0x17f/0x360 May 8 07:58:42 kernel: [1986597.770251] RSP: e02b:ffff8800bd85fa38 EFLAGS: 00010002 May 8 07:58:42 kernel: [1986597.770254] RAX: dead000000200200 RBX: 0000000000000001 RCX: ffffffff816af2c0 May 8 07:58:42 kernel: [1986597.770257] RDX: ffffffff816af2f0 RSI: 0000000000000030 RDI: ffffffff816b0fc0 May 8 07:58:42 kernel: [1986597.770259] RBP: ffff8800bd85faa8 R08: ffff880006fbe970 R09: 4000000000020068 May 8 07:58:42 kernel: [1986597.770262] R10: 0000000000000000 R11: dead000000200200 R12: ffff880004cff8f0 May 8 07:58:42 kernel: [1986597.770264] R13: ffff880004cff918 R14: ffffffff816aef00 R15: dead000000100100 May 8 07:58:42 kernel: [1986597.770272] FS: 00007f9c5ffef700(0000) GS:ffff880002ccd000(0000) knlGS:0000000000000000 May 8 07:58:42 kernel: [1986597.770275] CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033 May 8 07:58:42 kernel: [1986597.770278] CR2: 00007f604762b000 CR3: 00000000580b7000 CR4: 0000000000002660 May 8 07:58:42 kernel: [1986597.770281] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 May 8 07:58:42 kernel: [1986597.770284] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 May 8 07:58:42 kernel: [1986597.770287] Process python (pid: 25928, threadinfo ffff8800bd85e000, task ffff8800bdbec0c0) May 8 07:58:42 kernel: [1986597.770291] ffffffff816b0f40 0000000200000026 ffffffff816af2f0 0000000000000030 May 8 07:58:42 kernel: [1986597.770296] <0> ffffffff816af2f8 00000007ffffffff ffffffff816af2c0 000000010000e033 May 8 07:58:42 kernel: [1986597.770301] <0> 0000000000000246 00000000000003c0 0000000000002600 0000000000000001 May 8 07:58:42 kernel: [1986597.770312] [<ffffffff810b5929>] free_hot_cold_page+0x269/0x300 May 8 07:58:42 kernel: [1986597.770316] [<ffffffff810b5a98>] free_hot_page+0x28/0x60 May 8 07:58:42 kernel: [1986597.770319] [<ffffffff810b8106>] put_page+0x46/0x170 May 8 07:58:42 kernel: [1986597.770325] [<ffffffff813ff6d4>] skb_release_data+0x74/0xd0 May 8 07:58:42 kernel: [1986597.770328] [<ffffffff813ff1d9>] __kfree_skb+0x19/0xa0 May 8 07:58:42 kernel: [1986597.770332] [<ffffffff81446d3d>] tcp_recvmsg+0x72d/0xac0 May 8 07:58:42 kernel: [1986597.770338] [<ffffffff8100892c>] ? __switch_to+0x2ec/0x780 May 8 07:58:42 kernel: [1986597.770341] [<ffffffff813fa574>] sock_common_recvmsg+0x34/0x50 May 8 07:58:42 kernel: [1986597.770345] [<ffffffff813fa169>] sock_aio_read+0x149/0x150 May 8 07:58:42 kernel: [1986597.770349] [<ffffffff810ee592>] do_sync_read+0xf2/0x130 May 8 07:58:42 kernel: [1986597.770355] [<ffffffff8105a3f0>] ? autoremove_wake_function+0x0/0x40 May 8 07:58:42 kernel: [1986597.770359] [<ffffffff814afd03>] ? thread_return+0x4e/0x42b May 8 07:58:42 kernel: [1986597.770365] [<ffffffff812dd951>] ? security_file_permission+0x11/0x20 May 8 07:58:42 kernel: [1986597.770368] [<ffffffff810ef011>] vfs_read+0x181/0x1a0 May 8 07:58:42 kernel: [1986597.770371] [<ffffffff810ef07c>] sys_read+0x4c/0x80 May 8 07:58:42 kernel: [1986597.770374] [<ffffffff81009bb8>] system_call_fastpath+0x16/0x1b May 8 07:58:42 kernel: [1986597.770377] [<ffffffff81009b50>] ? system_call+0x0/0x52 May 8 07:58:42 kernel: [1986597.770429] RSP <ffff8800bd85fa38> May 8 07:58:42 kernel: [1986597.770447] ---[ end trace c65215bb68b9f489 ]--- Are these because of the same bug? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1052275 Title: "BUG: Bad page state in process" when running on EC2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-ec2/+bug/1052275/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
