regarding stack 4k page kernel, this just happened on wolfe-02. running (I believe) a 4k page kernel. $ grep CONFIG_PPC.*.*PAGES /boot/config-3.13.0-8-generic CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_64K_PAGES is not set
wolfe-02 login: [241848.101690] Unable to handle kernel paging request for data at address 0x2001400000044 [241848.112613] Faulting instruction address: 0xc000000000954b60 [241848.112704] Oops: Kernel access of bad area, sig: 11 [#1] [241848.112777] SMP NR_CPUS=2048 NUMA pSeries [241848.112871] Modules linked in: btrfs xor raid6_pq libcrc32c veth xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables dm_crypt [241848.113353] CPU: 1 PID: 10355 Comm: kworker/u4:0 Not tainted 3.13.0-8-generic #28-Ubuntu [241848.113465] Workqueue: netns .cleanup_net [241848.113540] task: c0000002192621f0 ti: c000000253eec000 task.ti: c000000253eec000 [241848.113655] NIP: c000000000954b60 LR: c000000000954b68 CTR: c000000000954b00 [241848.113768] REGS: c000000253eef760 TRAP: 0300 Not tainted (3.13.0-8-generic) [241848.113871] MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 44002024 XER: 00000000 [241848.114117] CFAR: c0000000001d2820 DAR: 0002001400000044 DSISR: 40000000 SOFTE: 1 GPR00: c000000000954b68 c000000253eef9e0 c0000000010b0dd0 0002001400000044 GPR04: f00000000b7698d8 c00000034674d900 c000000000954b68 c0000003fe023508 GPR08: 0000000000010000 c0000002536a0000 000000000000000e 0000000000000001 GPR12: 0000000044002028 c00000000fe80300 c0000000000c3f00 c000000363207c40 GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR20: 0000000000000000 0000000000000000 0000000000000001 c000000000f630fc GPR24: 0000000000000001 fffffffffffffef7 0000000000000000 c000000000f58638 GPR28: 0000000000000001 c0000003506f3900 0000000000002000 0000000000000000 [241848.115585] NIP [c000000000954b60] .tcp_net_metrics_exit+0x60/0x110 [241848.115675] LR [c000000000954b68] .tcp_net_metrics_exit+0x68/0x110 [241848.115762] Call Trace: [241848.115805] [c000000253eef9e0] [c000000000954b68] .tcp_net_metrics_exit+0x68/0x110 (unreliable) [241848.115945] [c000000253eefa70] [c0000000008cc49c] .ops_exit_list.isra.2+0x6c/0xd0 [241848.116078] [c000000253eefb00] [c0000000008ccef0] .cleanup_net+0x150/0x250 [241848.116198] [c000000253eefbc0] [c0000000000b9e28] .process_one_work+0x1a8/0x4d0 [241848.116320] [c000000253eefc60] [c0000000000baaf0] .worker_thread+0x180/0x4a0 [241848.116429] [c000000253eefd30] [c0000000000c4010] .kthread+0x110/0x130 [241848.116538] [c000000253eefe30] [c00000000000a160] .ret_from_kernel_thread+0x5c/0x7c [241848.116659] Instruction dump: [241848.116731] 7d295030 2f890000 e93d0288 419e0058 3bc00000 3b800001 60000000 60420000 [241848.116920] 7bc81f24 7c69402a 2fa30000 419e0024 <ebe30000> 4b8b809d 60000000 2fbf0000 [241848.117115] ---[ end trace 531dcfc8ed4b2948 ]--- [241848.124367] [241848.129853] Unable to handle kernel paging request for data at address 0xffffffffffffffd8 [241848.129968] Faulting instruction address: 0xc0000000000c49c0 [241848.130056] Oops: Kernel access of bad area, sig: 11 [#2] [241848.130128] SMP NR_CPUS=2048 NUMA pSeries [241848.130220] Modules linked in: btrfs xor raid6_pq libcrc32c veth xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables dm_crypt [241848.130695] CPU: 0 PID: 10355 Comm: kworker/u4:0 Tainted: G D 3.13.0-8-generic #28-Ubuntu [241848.130833] task: c0000002192621f0 ti: c000000253eec000 task.ti: c000000253eec000 [241848.130938] NIP: c0000000000c49c0 LR: c0000000000bb278 CTR: c0000000000ded80 [241848.131042] REGS: c000000253eeeed0 TRAP: 0300 Tainted: G D (3.13.0-8-generic) [241848.131145] MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 42004028 XER: 00000000 [241848.131391] CFAR: 00003fff90fa7250 DAR: ffffffffffffffd8 DSISR: 40000000 SOFTE: 0 GPR00: c0000000000bb278 c000000253eef150 c0000000010b0dd0 c0000002192621f0 GPR04: 0000000000000000 0000000000000001 0000000000000800 0000000000000000 GPR08: 0000000000000001 0000000000000000 0000000000000001 0000000000000018 GPR12: 0000000022004088 c00000000fe80000 000000000075a000 0000000000000001 GPR16: 0000000000000000 c000000000eee780 c000000000096c48 c00000000110df34 GPR20: c000000000eee780 0000000000000001 0000000000000000 0000000000000004 GPR24: c000000000eee780 c000000001109a60 c000000253eec000 c000000000eee780 GPR28: c000000219262690 0000000000000000 c0000002192621f0 c0000002192621f0 [241848.132789] NIP [c0000000000c49c0] .kthread_data+0x20/0x40 [241848.132861] LR [c0000000000bb278] .wq_worker_sleeping+0x28/0xf0 [241848.132947] Call Trace: [241848.132988] [c000000253eef150] [c0000002192632d4] 0xc0000002192632d4 (unreliable) [241848.133109] [c000000253eef1d0] [c0000000000bb278] .wq_worker_sleeping+0x28/0xf0 [241848.133231] [c000000253eef260] [c000000000a14a7c] .__schedule+0x65c/0x8c0 [241848.133338] [c000000253eef4e0] [c000000000096c48] .do_exit+0x738/0xb30 [241848.133443] [c000000253eef5d0] [c000000000021c60] .die+0x2f0/0x450 [241848.133550] [c000000253eef670] [c0000000000474e0] .bad_page_fault+0xe0/0x130 [241848.133656] [c000000253eef6f0] [c000000000009284] handle_page_fault+0x2c/0x30 [241848.133780] --- Exception: 300 at .tcp_net_metrics_exit+0x60/0x110 [241848.133780] LR = .tcp_net_metrics_exit+0x68/0x110 [241848.133938] [c000000253eefa70] [c0000000008cc49c] .ops_exit_list.isra.2+0x6c/0xd0 [241848.134057] [c000000253eefb00] [c0000000008ccef0] .cleanup_net+0x150/0x250 [241848.134161] [c000000253eefbc0] [c0000000000b9e28] .process_one_work+0x1a8/0x4d0 [241848.134280] [c000000253eefc60] [c0000000000baaf0] .worker_thread+0x180/0x4a0 [241848.134385] [c000000253eefd30] [c0000000000c4010] .kthread+0x110/0x130 [241848.134489] [c000000253eefe30] [c00000000000a160] .ret_from_kernel_thread+0x5c/0x7c [241848.134607] Instruction dump: [241848.134677] 4e800020 60000000 60000000 60420000 7c0802a6 fbe1fff8 f8010010 f821ff81 [241848.134850] 7c7f1b78 60000000 60000000 e93f0458 <e869ffd8> 38210080 e8010010 ebe1fff8 [241848.135026] ---[ end trace 531dcfc8ed4b2949 ]--- [241848.140660] [241848.140706] Fixing recursive fault but reboot is needed! -- 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/1301496 Title: kernel crash: Unable to handle kernel paging request for data Status in “linux” package in Ubuntu: Confirmed Bug description: We've seen this happen twice now on ppc64el guests that are probably under load. I don't have a lot of the details on what was going on when they failed, but I have the stack traces. [101168.836780] Unable to handle kernel paging request for data at address 0x00010001 [101168.836886] Faulting instruction address: 0xc000000000954b60 [101168.836934] Oops: Kernel access of bad area, sig: 11 [#1] [101168.836971] SMP NR_CPUS=2048 NUMA pSeries [101168.837020] Modules linked in: veth xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables dm_crypt [101168.837234] CPU: 1 PID: 19760 Comm: kworker/u4:0 Not tainted 3.13.0-8-generic #28-Ubuntu [101168.837294] Workqueue: netns .cleanup_net [101168.837332] task: c0000003f99d43e0 ti: c0000001cce44000 task.ti: c0000001cce44000 [101168.837386] NIP: c000000000954b60 LR: c000000000954b68 CTR: c000000000954b00 [101168.837439] REGS: c0000001cce47760 TRAP: 0300 Not tainted (3.13.0-8-generic) [101168.837493] MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24002024 XER: 00000000 [101168.837620] CFAR: 000000001063ea4c DAR: 0000000000010001 DSISR: 40000000 SOFTE: 1 GPR00: c000000000954b68 c0000001cce479e0 c0000000010b0dd0 0000000000010001 GPR04: f0000000099918f0 c0000002be072380 c000000000954b68 c0000003fe023508 GPR08: 0000000000010000 c000000209fc0000 000000000000000e 0000000000000001 GPR12: 0000000044002028 c00000000fe80300 c0000000000c3f00 c0000002be1e8bc0 GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR20: 0000000000000000 0000000000000000 0000000000000001 c000000000f630fc GPR24: 0000000000000001 fffffffffffffef7 0000000000000000 c000000000f58638 GPR28: 0000000000000001 c0000003fbdc0000 0000000000002000 0000000000000000 [101168.838355] NIP [c000000000954b60] .tcp_net_metrics_exit+0x60/0x110 [101168.838402] LR [c000000000954b68] .tcp_net_metrics_exit+0x68/0x110 [101168.838448] Call Trace: [101168.838469] [c0000001cce479e0] [c000000000954b68] .tcp_net_metrics_exit+0x68/0x110 (unreliable) [101168.838542] [c0000001cce47a70] [c0000000008cc49c] .ops_exit_list.isra.2+0x6c/0xd0 [101168.838605] [c0000001cce47b00] [c0000000008ccef0] .cleanup_net+0x150/0x250 [101168.838662] [c0000001cce47bc0] [c0000000000b9e28] .process_one_work+0x1a8/0x4d0 [101168.838726] [c0000001cce47c60] [c0000000000baaf0] .worker_thread+0x180/0x4a0 [101168.838783] [c0000001cce47d30] [c0000000000c4010] .kthread+0x110/0x130 [101168.838841] [c0000001cce47e30] [c00000000000a160] .ret_from_kernel_thread+0x5c/0x7c [101168.838903] Instruction dump: [101168.838940] 7d295030 2f890000 e93d0288 419e0058 3bc00000 3b800001 60000000 60420000 [101168.839031] 7bc81f24 7c69402a 2fa30000 419e0024 <ebe30000> 4b8b809d 60000000 2fbf0000 [101168.839127] ---[ end trace fb028b2b5c006a6a ]--- --- AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14-0ubuntu1 Architecture: ppc64el ArecordDevices: Error: [Errno 2] No such file or directory CRDA: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 14.04 Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinux-3.13.0-19-generic root=UUID=19eaa2f9-0f24-49b9-ba48-24879242481c ro console=hvc0 earlyprintk ProcVersionSignature: User Name 3.13.0-19.40-generic 3.13.6 RelatedPackageVersions: linux-restricted-modules-3.13.0-19-generic N/A linux-backports-modules-3.13.0-19-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: trusty uec-images Uname: Linux 3.13.0-19-generic ppc64le UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dialout dip floppy netdev plugdev sudo video WifiSyslog: _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1301496/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
