[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-users] CPU soft lockup XEN 4.1rc
Hello, Similar to others I have freezeups on the system, it is consistent with high IO load. If the system runs (even with multiple) XenU it does not happen. But I can consistently force the situation to occur. Running 4 dd processes dumping 20GB each on a LVM/mdadm soft RAID5 volume it consistenly crashes in a DomU. Running without XEN I do not see the problem at all - (e.g. after about 3TB of read/write) nothing happened. Any suggestion would be very welcome. Marc [ .. more .. ] It appears to be very unpredictable of when it actually occurs, here are a few examples. Kind of odd that on Aug29th it always happened on the same second ;-{. > syslog.2:Aug 29 17:35:47 nwsc-xen-Q45 kernel: [ 2698.560009] BUG: soft lockup > - CPU#0 stuck for 146s! [events/0:9] > syslog.2:Aug 29 17:35:47 nwsc-xen-Q45 kernel: [ 2698.561016] BUG: soft lockup > - CPU#1 stuck for 146s! [rsyslogd:2024] > syslog.2:Aug 29 22:57:27 nwsc-xen-Q45 kernel: [ 4198.404353] BUG: soft lockup > - CPU#0 stuck for 122s! [md1_raid5:1243] > syslog.2:Aug 29 23:07:27 nwsc-xen-Q45 kernel: [ 4798.336110] BUG: soft lockup > - CPU#0 stuck for 101s! [xend:2583] > syslog.2:Aug 29 23:07:27 nwsc-xen-Q45 kernel: [ 4798.337007] BUG: soft lockup > - CPU#1 stuck for 101s! [bdi-default:19] > syslog.2:Aug 29 23:12:27 nwsc-xen-Q45 kernel: [ 5098.304013] BUG: soft lockup > - CPU#0 stuck for 136s! [blkback.5.xvdd1:7226] > syslog.2:Aug 29 23:12:27 nwsc-xen-Q45 kernel: [ 5098.305010] BUG: soft lockup > - CPU#1 stuck for 136s! [sh:7262] > syslog.6:Aug 17 12:07:08 nwsc-xen-Q45 kernel: [ 2998.596016] BUG: soft lockup > - CPU#0 stuck for 73s! [xend:2506] > syslog.6:Aug 17 12:07:08 nwsc-xen-Q45 kernel: [ 2998.597555] BUG: soft lockup > - CPU#1 stuck for 73s! [md0_raid5:598] > syslog.6:Aug 17 12:17:08 nwsc-xen-Q45 kernel: [ 3598.534068] BUG: soft lockup > - CPU#1 stuck for 150s! [xend:2506] It does not appear to relate to a specific process. (Those above are from Xen 4.0.1 with Debian 2.6.32-5-xen-amd64). This one is with Xen 4.1.2-rc2-pre/Debian 2.6.32-5-xen-amd64. Both are on Intel DQ45CB board with 4GB ram. > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348062] BUG: soft lockup - CPU#0 > stuck for 79s! [xend:2767] > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348073] Modules linked in: > xt_tcpudp xt_physdev iptable_filter ip_tables x_ta bles > ext4 jbd2 crc16 sata_sil24 hid_apple sky2 via_velocity crc_ccitt usb_storage > raid456 md_mod async_raid6_recov async_ pq raid6_pq > async_xor xor async_memcpy async_tx dm_mod ext3 jbd mbcache firewire_sbp2 > loop sr_mod cdrom sg xenfs xen_evtc hn bridge stp 3w_9xxx > usbhid hid sd_mod crc_t10dif snd_hda_codec_analog snd_hda_intel snd_hda_codec > snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi > snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device firewire_ohci > psmouse i2c_i801 video firewire_core uhci_hcd ata_piix > snd crc_itu_t output serio_raw evdev ahci pcspkr ehci_hcd i2c_core usbcor > e nls_base e1000e button ata_generic soundcore snd_page_alloc > libata thermal scsi_mod processor thermal_sys acpi_processo > r > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348219] CPU 0: > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348222] Modules linked in: > xt_tcpudp xt_physdev iptable_filter ip_tables x_ta bles > ext4 jbd2 crc16 sata_sil24 hid_apple sky2 via_velocity crc_ccitt usb_storage > raid456 md_mod async_raid6_recov async_ pq raid6_pq > async_xor xor async_memcpy async_tx dm_mod ext3 jbd mbcache firewire_sbp2 > loop sr_mod cdrom sg xenfs xen_evtc hn bridge stp 3w_9xxx > usbhid hid sd_mod crc_t10dif snd_hda_codec_analog snd_hda_intel snd_hda_codec > snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi > snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device firewire_ohci > psmouse i2c_i801 video firewire_core uhci_hcd ata_piix > snd crc_itu_t output serio_raw evdev ahci pcspkr ehci_hcd i2c_core usbcor > e nls_base e1000e button ata_generic soundcore snd_page_alloc > libata thermal scsi_mod processor thermal_sys acpi_processo > r > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348318] Pid: 2767, comm: xend Not > tainted 2.6.32-5-xen-amd64 #1 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348322] RIP: > e033:[<00007fa4064c0289>] [<00007fa4064c0289>] 0x7fa4064c0289 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348330] RSP: > e02b:00007fa402ee54a0 EFLAGS: 00000206 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348334] RAX: 0000000001c3a320 > RBX: 0000000001f8ace0 RCX: 00007fa40650f844 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348338] RDX: ffffffffffffffe0 > RSI: 0000000000000000 RDI: 00007fa4067a9e40 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348341] RBP: 0000000000000000 > R08: 0000000000000008 R09: 0000000000000001 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348345] R10: 0000000000000000 > R11: 0000000000000246 R12: 00007fa4067a9e40 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348349] R13: 00007fa402ee555c > R14: 00007fa402ee5548 R15: 00000000ffffffff > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348356] FS: > 00007fa402ee6700(0000) GS:ffff880002995000(0000) knlGS:000000000 > 0000000 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348360] CS: e033 DS: 0000 ES: > 0000 CR0: 000000008005003b > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348363] CR2: 00007fb2ed832e28 > CR3: 00000000bba8e000 CR4: 0000000000002660 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348367] DR0: 0000000000000000 > DR1: 0000000000000000 DR2: 0000000000000000 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348371] DR3: 0000000000000000 > DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Aug 31 13:05:41 nwsc-xen-Q45 kernel: [ 4039.348375] Call Trace: > > Aug 31 13:07:51 nwsc-xen-Q45 init: Id "T1" respawning too fast: disabled for > 5 minutes _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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