Sami, Good observation: I do not have a machine check exception. The similarities are: a reported bug on the same line; similar behaviour; and java involved. For reference I copy my kernel bug below (I get several instances of this, only that the next ones are tainted). As soon as I have a problem with the new upstream kernel I will report it back
May 9 09:55:29 wintermute kernel: [604868.582044] ------------[ cut here ]------------ May 9 09:55:29 wintermute kernel: [604868.582059] kernel BUG at /build/buildd/linux-3.13.0/mm/memory.c:3756! May 9 09:55:29 wintermute kernel: [604868.582064] invalid opcode: 0000 [#1] SMP May 9 09:55:29 wintermute kernel: [604868.582069] Modules linked in: veth xt_addrtype xt_conntrack iptable_filter ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables bridge stp llc bnep rfcomm bluetooth aufs binfmt_misc kvm_amd kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel joydev aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd parport_pc ppdev psmouse amd64_edac_mod sp5100_tco serio_raw edac_core lp fam15h_power k10temp i2c_piix4 edac_mce_amd mac_hid parport hid_generic usbhid hid usb_storage ixgbe igb mdio i2c_algo_bit dca ahci ptp libahci pps_core May 9 09:55:29 wintermute kernel: [604868.582148] CPU: 21 PID: 25260 Comm: java Not tainted 3.13.0-24-generic #46-Ubuntu May 9 09:55:29 wintermute kernel: [604868.582152] Hardware name: Supermicro H8QG6/H8QG6, BIOS 3.5 12/16/2013 May 9 09:55:29 wintermute kernel: [604868.582156] task: ffff8876d3985fc0 ti: ffff8871f58c8000 task.ti: ffff8871f58c8000 May 9 09:55:29 wintermute kernel: [604868.582159] RIP: 0010:[<ffffffff81179051>] [<ffffffff81179051>] handle_mm_fault+0xe61/0xf10 May 9 09:55:29 wintermute kernel: [604868.582171] RSP: 0000:ffff8871f58c9d98 EFLAGS: 00010246 May 9 09:55:29 wintermute kernel: [604868.582174] RAX: 0000000000000100 RBX: 00007fa583801ea0 RCX: ffff8871f58c9b18 May 9 09:55:29 wintermute kernel: [604868.582177] RDX: ffff8876d3985fc0 RSI: 0000000000000000 RDI: 80000020286009e6 May 9 09:55:29 wintermute kernel: [604868.582180] RBP: ffff8871f58c9e20 R08: 0000000000000000 R09: 00000000000000a9 May 9 09:55:29 wintermute kernel: [604868.582182] R10: 0000000000000001 R11: 0000000000000000 R12: ffff883fb68b30e0 May 9 09:55:29 wintermute kernel: [604868.582185] R13: ffff882e351b2600 R14: ffff88702aceec80 R15: 0000000000000080 May 9 09:55:29 wintermute kernel: [604868.582188] FS: 00007fa5603f2700(0000) GS:ffff882fe7d40000(0000) knlGS:0000000000000000 May 9 09:55:29 wintermute kernel: [604868.582192] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b May 9 09:55:29 wintermute kernel: [604868.582194] CR2: 00007fa583a05620 CR3: 0000007861d59000 CR4: 00000000000407e0 May 9 09:55:29 wintermute kernel: [604868.582198] Stack: May 9 09:55:29 wintermute kernel: [604868.582200] ffff8871f58c9e20 ffff88702aceec80 00007fad7d38fd70 00007fa583804020 May 9 09:55:29 wintermute kernel: [604868.582241] 0000000000002190 00007fad7401bb68 0000000000000000 0000000000000002 May 9 09:55:29 wintermute kernel: [604868.582266] ffff887101ef5e20 00007fad781a900f ffff8800000000a9 ffffffffffffff03 May 9 09:55:29 wintermute kernel: [604868.582283] Call Trace: May 9 09:55:29 wintermute kernel: [604868.582297] [<ffffffff817219a4>] __do_page_fault+0x184/0x560 May 9 09:55:29 wintermute kernel: [604868.582311] [<ffffffff811112fc>] ? acct_account_cputime+0x1c/0x20 May 9 09:55:29 wintermute kernel: [604868.582321] [<ffffffff8109d76b>] ? account_user_time+0x8b/0xa0 May 9 09:55:29 wintermute kernel: [604868.582329] [<ffffffff8109dd84>] ? vtime_account_user+0x54/0x60 May 9 09:55:29 wintermute kernel: [604868.582338] [<ffffffff81721d9a>] do_page_fault+0x1a/0x70 May 9 09:55:29 wintermute kernel: [604868.582349] [<ffffffff8171e208>] page_fault+0x28/0x30 May 9 09:55:29 wintermute kernel: [604868.582353] Code: ff 48 89 d9 4c 89 e2 4c 89 ee 4c 89 f7 44 89 4d c8 e8 34 c1 ff ff 85 c0 0f 85 94 f5 ff ff 49 8b 3c 24 44 8b 4d c8 e9 68 f3 ff ff <0f> 0b be 8e 00 00 00 48 c7 c7 18 25 a6 81 44 89 4d c8 e8 18 e7 May 9 09:55:29 wintermute kernel: [604868.582415] RIP [<ffffffff81179051>] handle_mm_fault+0xe61/0xf10 May 9 09:55:29 wintermute kernel: [604868.582421] RSP <ffff8871f58c9d98> May 9 09:55:29 wintermute kernel: [604868.582426] ---[ end trace 77f5d1b963750a41 ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1315736 Title: [Dell PowerEdge R720] Machine Check Exception To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1315736/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
