This is not HP-specific and also happens on Dell HW. I'll take this as the tracking bug. This commit suggests that the BUG_ON is actually bogus:
http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=107437febd495a50e2cd09c81bbaa84d30e57b07 In the referenced thread there was a Cc to stable@, but that apparently got dropped when the patch was put into tip. This is *not* part of 3.15 yet. Instead it's currently staged for the next merge window. ** Tags removed: needs-upstream-testing ** Tags added: kernel-bug-exists-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1323165 Title: [HP ProLiant DL380p Gen8] kernel BUG at /build/buildd/linux-3.13.0/mm/memory.c:3756! Status in “linux” package in Ubuntu: Confirmed Bug description: The machine becomes non-responsive, unable to ssh, high load average, trying to access the running java process does not work as per syslog: May 26 06:19:38 server06 kernel: [75831.929529] ------------[ cut here ]------------ May 26 06:19:38 server06 kernel: [75831.930191] kernel BUG at /build/buildd/linux-3.13.0/mm/memory.c:3756! May 26 06:19:38 server06 kernel: [75831.931129] invalid opcode: 0000 [#1] SMP May 26 06:19:38 server06 kernel: [75831.931729] Modules linked in: xt_multiport ip6t_REJECT xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6table_filter ip6_tables gpio_ich nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables x_tables intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd serio_raw sb_edac edac_core lpc_ich hpwdt hpilo ioatdma lp dca ipmi_si parport acpi_power_meter mac_hid tg3 ptp psmouse hpsa pps_core May 26 06:19:38 server06 kernel: [75831.941585] CPU: 4 PID: 2930 Comm: java Not tainted 3.13.0-24-generic #47-Ubuntu May 26 06:19:38 server06 kernel: [75831.942633] Hardware name: HP ProLiant DL380p Gen8, BIOS P70 02/10/2014 May 26 06:19:38 server06 kernel: [75831.943583] task: ffff881fe8372fe0 ti: ffff881fe632a000 task.ti: ffff881fe632a000 May 26 06:19:38 server06 kernel: [75831.944654] RIP: 0010:[<ffffffff81179051>] [<ffffffff81179051>] handle_mm_fault+0xe61/0xf10 May 26 06:19:38 server06 kernel: [75831.946137] RSP: 0000:ffff881fe632bd98 EFLAGS: 00010246 May 26 06:19:38 server06 kernel: [75831.946885] RAX: 0000000000000100 RBX: 00007fc37320a370 RCX: ffff881fe632bb18 May 26 06:19:38 server06 kernel: [75831.947902] RDX: ffff881fe8372fe0 RSI: 0000000000000000 RDI: 8000000100c009e6 May 26 06:19:38 server06 kernel: [75831.948932] RBP: ffff881fe632be20 R08: 0000000000000000 R09: 00000000000000a9 May 26 06:19:38 server06 kernel: [75831.949952] R10: 0000000000000001 R11: 0000000000000000 R12: ffff881fd83a7cc8 May 26 06:19:38 server06 kernel: [75831.950961] R13: ffff880fe6787d40 R14: ffff880fe5d95780 R15: 0000000000000080 May 26 06:19:38 server06 kernel: [75831.951985] FS: 00007fc938145700(0000) GS:ffff880fffa80000(0000) knlGS:0000000000000000 May 26 06:19:38 server06 kernel: [75831.976736] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 26 06:19:38 server06 kernel: [75832.005183] CR2: 00007fc373620930 CR3: 0000000fe63fe000 CR4: 00000000000407e0 May 26 06:19:38 server06 kernel: [75832.033473] Stack: May 26 06:19:38 server06 kernel: [75832.060551] 0000000000000001 ffff881fe632bdb0 ffffffff8109a780 ffff881fe632bdd0 May 26 06:19:38 server06 kernel: [75832.117385] ffffffff810d7ad6 0000000000000001 ffffffff81f1ea20 ffff881fe632be78 May 26 06:19:38 server06 kernel: [75832.173599] ffffffff810d983d ffff881fe632be48 ffff8800000000a9 00000001ffffffff May 26 06:19:38 server06 kernel: [75832.231813] Call Trace: May 26 06:19:38 server06 kernel: [75832.258781] [<ffffffff8109a780>] ? wake_up_state+0x10/0x20 May 26 06:19:38 server06 kernel: [75832.286702] [<ffffffff810d7ad6>] ? wake_futex+0x66/0x90 May 26 06:19:38 server06 kernel: [75832.311849] [<ffffffff810d983d>] ? futex_wake_op+0x4ed/0x620 May 26 06:19:38 server06 kernel: [75832.337329] [<ffffffff81721a24>] __do_page_fault+0x184/0x560 May 26 06:19:38 server06 kernel: [75832.363061] [<ffffffff811112fc>] ? acct_account_cputime+0x1c/0x20 May 26 06:19:38 server06 kernel: [75832.387739] [<ffffffff8109d76b>] ? account_user_time+0x8b/0xa0 May 26 06:19:38 server06 kernel: [75832.411608] [<ffffffff8109dd84>] ? vtime_account_user+0x54/0x60 May 26 06:19:38 server06 kernel: [75832.436126] [<ffffffff81721e1a>] do_page_fault+0x1a/0x70 May 26 06:19:38 server06 kernel: [75832.458239] [<ffffffff8171e288>] page_fault+0x28/0x30 May 26 06:19:38 server06 kernel: [75832.481780] 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 26 06:19:38 server06 kernel: [75832.551672] RIP [<ffffffff81179051>] handle_mm_fault+0xe61/0xf10 May 26 06:19:38 server06 kernel: [75832.574254] RSP <ffff881fe632bd98> May 26 06:19:38 server06 kernel: [75832.630392] ---[ end trace e41b58adf8e0d72b ]--- With Precise, it runs with 16 threads with no problem so it would appear a regression. WORKAROUND: Run the task with 8 threads instead of 16. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.47 ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 May 26 09:30 seq crw-rw---- 1 root audio 116, 33 May 26 09:30 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Mon May 26 10:27:04 2014 HibernationDevice: RESUME=UUID=a777a6ba-8cca-4435-8869-15bd3294ee35 InstallationDate: Installed on 2014-04-30 (25 days ago) InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) MachineType: HP ProLiant DL380p Gen8 PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=UUID=cf3b3e5c-c6c7-4a56-b471-e1741ecbd865 ro RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127.2 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/10/2014 dmi.bios.vendor: HP dmi.bios.version: P70 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrP70:bd02/10/2014:svnHP:pnProLiantDL380pGen8:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL380p Gen8 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1323165/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
