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Go Back   Linux Archive > Debian > Debian Kernel

 
 
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Old 05-09-2011, 05:55 PM
Ferenc Wagner
 
Default Bug#626189: linux-image-2.6.32-5-xen-686: kernel BUG (invalid opcode) on reboot -f

Package: linux-image-2.6.32-5-xen-686
Version: 2.6.32-31
Severity: normal

Hi,

As a STONITH measure, I issued reboot -f on a Xen dom0 while several
domUs were running. This didn't kill the machine but resulted in the
BUGs below, and made further interaction impossible, although the kernel
was running and some firewall logs even made it through the syslog daemon.
Of course I didn't try to reproduce the issue (it's a production system in
active/backup HA), but I'm willing to do further experiments that don't
risk further data loss if needed. This happened on a perfectly stock and
up-to-date squeeze Xen system running several PV guests.

Thanks,
Feri.

[527638.438831] md: stopping all md devices.
[527638.438971] md: md1 switched to read-only mode.
[527638.439256] md: md0 switched to read-only mode.
[527639.452674] xenbus_dev_shutdown: backend/console/10/0: Initialising != Connected, skipping
[527644.461066] xenbus_dev_shutdown: backend/vif/10/0 timeout closing device
[527649.464084] xenbus_dev_shutdown: backend/vbd/10/51712 timeout closing device
[527649.464166] xenbus_dev_shutdown: backend/console/9/0: Initialising != Connected, skipping
[527654.469068] xenbus_dev_shutdown: backend/vif/9/0 timeout closing device
[527659.473064] xenbus_dev_shutdown: backend/vbd/9/51712 timeout closing device
[527659.473146] xenbus_dev_shutdown: backend/console/8/0: Initialising != Connected, skipping
[527664.477114] xenbus_dev_shutdown: backend/vif/8/0 timeout closing device
[527669.481109] xenbus_dev_shutdown: backend/vbd/8/51712 timeout closing device
[527669.481191] xenbus_dev_shutdown: backend/console/7/0: Initialising != Connected, skipping
[527671.204239] ------------[ cut here ]------------
[527671.204318] kernel BUG at /build/buildd-linux-2.6_2.6.32-31-i386-qYaaJr/linux-2.6-2.6.32/debian/build/source_i386_xen/drivers/md/md.c:6199!
[527671.204417] invalid opcode: 0000 [#1] SMP
[527671.204542] last sysfs file: /sys/devices/pci0000:01/0000:01:06.0/host2/rport-2:0-1/target2:0:1/2:0:1:11/state
[527671.204633] Modules linked in: xt_physdev xen_evtchn xenfs bridge 8021q garp stp bonding ip6t_REJECT ip6t_LOG nf_conntrack_ipv6 ip6table_filter ip6_tables xt_recent ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp ipt_LOG xt_limit xt_multiport iptable_filter ip_tables ebtable_filter ebtables x_tables ext2 mbcache dm_round_robin scsi_dh_emc dm_multipath scsi_dh ipmi_devintf ipmi_si ipmi_msghandler snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr shpchp evdev pci_hotplug psmouse dcdbas serio_raw pl2303 usbserial i2c_piix4 button i2c_core processor acpi_processor xfs exportfs dm_mod raid1 md_mod sd_mod crc_t10dif sg sr_mod cdrom ata_generic qla2xxx ohci_hcd aic7xxx scsi_transport_spi pata_serverworks scsi_transport_fc ehci_hcd libata scsi_tgt usbcore nls_base tg3 libphy floppy scsi_mod thermal thermal_sys [last unloaded: scsi_wait_scan]
[527671.206298]
[527671.206353] Pid: 16345, comm: flush-253:0 Not tainted (2.6.32-5-xen-686 #1) PowerEdge 2650
[527671.206470] EIP: 0061:[<d0a5390a>] EFLAGS: 00010246 CPU: 2
[527671.206562] EIP is at md_write_start+0x1b/0x140 [md_mod]
[527671.206643] EAX: 00000001 EBX: c2396400 ECX: d08f69c8 EDX: cf9f7000
[527671.206704] ESI: 000004c1 EDI: cf9f7000 EBP: c2300530 ESP: ca3d9cd8
[527671.206761] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0069
[527671.206819] Process flush-253:0 (pid: 16345, ti=ca3d8000 task=cfab0440 task.ti=ca3d8000)
[527671.206902] Stack:
[527671.206945] cbc7e7f0 0000005d 00000040 cbc70000 cbc7e7f0 c2396420 000004c1 cf9f7000
[527671.207133] <0> c2300530 d08f5d9d c1450050 c100676f cf9f7000 c219df00 c2396400 ce0d6510
[527671.207333] <0> cf830cc0 cfab0684 c300bea0 cf5aa128 00000009 c108eb9e c2e85da0 d08cd020
[527671.207566] Call Trace:
[527671.207626] [<d08f5d9d>] ? make_request+0x27/0x6dd [raid1]
[527671.207701] [<c100676f>] ? xen_restore_fl_direct_end+0x0/0x1
[527671.207765] [<c108eb9e>] ? find_get_page+0x1f/0x85
[527671.207835] [<d0a552e6>] ? md_make_request+0xa4/0xd8 [md_mod]
[527671.207922] [<c11316c5>] ? generic_make_request+0x266/0x2b4
[527671.208020] [<d09d18bb>] ? dm_merge_bvec+0xfd/0x13d [dm_mod]
[527671.208028] [<d09d18da>] ? dm_merge_bvec+0x11c/0x13d [dm_mod]
[527671.208028] [<d09d17be>] ? dm_merge_bvec+0x0/0x13d [dm_mod]
[527671.208028] [<c10d9699>] ? __bio_add_page+0x155/0x220
[527671.208028] [<c10908c6>] ? mempool_alloc+0x3b/0xdd
[527671.208028] [<c11317cf>] ? submit_bio+0xbc/0xd6
[527671.208028] [<c10d978c>] ? bio_add_page+0x28/0x2e
[527671.208028] [<d0b2d84b>] ? _xfs_buf_ioapply+0x206/0x22b [xfs]
[527671.208028] [<d0b2e254>] ? xfs_buf_iorequest+0x38/0x60 [xfs]
[527671.208028] [<d0b31809>] ? xfs_bdstrat_cb+0x32/0x35 [xfs]
[527671.208028] [<d0b15aa1>] ? xfs_iflush+0x1d9/0x236 [xfs]
[527671.208028] [<d0b32d95>] ? xfs_fs_write_inode+0xbd/0xf1 [xfs]
[527671.208028] [<c10d181a>] ? writeback_single_inode+0xf8/0x273
[527671.208028] [<c10d2354>] ? writeback_inodes_wb+0x3dd/0x49c
[527671.208028] [<c10d2528>] ? wb_writeback+0x115/0x178
[527671.208028] [<c10d272f>] ? wb_do_writeback+0x121/0x131
[527671.208028] [<c1042967>] ? process_timeout+0x0/0x5
[527671.208028] [<c10d2760>] ? bdi_writeback_task+0x21/0x89
[527671.208028] [<c109fa85>] ? bdi_start_fn+0x59/0xa4
[527671.208028] [<c109fa2c>] ? bdi_start_fn+0x0/0xa4
[527671.208028] [<c104b348>] ? kthread+0x61/0x66
[527671.208028] [<c104b2e7>] ? kthread+0x0/0x66
[527671.208028] [<c1009b07>] ? kernel_thread_helper+0x7/0x10
[527671.208028] Code: eb 05 b9 fe ff ff ff 5a 89 c8 59 5b 5e 5f 5d c3 55 57 56 53 89 c3 83 ec 14 f6 42 14 01 0f 84 25 01 00 00 8b 40 24 83 f8 01 75 04 <0f> 0b eb fe 31 ff 83 f8 02 75 30 c7 43 24 00 00 00 00 8d 83 48
[527671.208028] EIP: [<d0a5390a>] md_write_start+0x1b/0x140 [md_mod] SS:ESP 0069:ca3d9cd8
[527671.208028] ---[ end trace 3e0021f3cbea08f1 ]---
[527671.268386] ------------[ cut here ]------------
[527671.268563] kernel BUG at /build/buildd-linux-2.6_2.6.32-31-i386-qYaaJr/linux-2.6-2.6.32/debian/build/source_i386_xen/drivers/md/md.c:6199!
[527671.268762] invalid opcode: 0000 [#2] SMP
[527671.269099] last sysfs file: /sys/devices/pci0000:01/0000:01:06.0/host2/rport-2:0-1/target2:0:1/2:0:1:11/state
[527671.269285] Modules linked in: xt_physdev xen_evtchn xenfs bridge 8021q garp stp bonding ip6t_REJECT ip6t_LOG nf_conntrack_ipv6 ip6table_filter ip6_tables xt_recent ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp ipt_LOG xt_limit xt_multiport iptable_filter ip_tables ebtable_filter ebtables x_tables ext2 mbcache dm_round_robin scsi_dh_emc dm_multipath scsi_dh ipmi_devintf ipmi_si ipmi_msghandler snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr shpchp evdev pci_hotplug psmouse dcdbas serio_raw pl2303 usbserial i2c_piix4 button i2c_core processor acpi_processor xfs exportfs dm_mod raid1 md_mod sd_mod crc_t10dif sg sr_mod cdrom ata_generic qla2xxx ohci_hcd aic7xxx scsi_transport_spi pata_serverworks scsi_transport_fc ehci_hcd libata scsi_tgt usbcore nls_base tg3 libphy floppy scsi_mod thermal thermal_sys [last unloaded: scsi_wait_scan]
[527671.272028]
[527671.272028] Pid: 16424, comm: flush-253:29 Tainted: G D (2.6.32-5-xen-686 #1) PowerEdge 2650
[527671.272028] EIP: 0061:[<d0a5390a>] EFLAGS: 00010246 CPU: 0
[527671.272028] EIP is at md_write_start+0x1b/0x140 [md_mod]
[527671.272028] EAX: 00000001 EBX: c2396400 ECX: d08f69c8 EDX: ce803700
[527671.272028] ESI: 000004c1 EDI: ce803700 EBP: c2300530 ESP: cdabbcd8
[527671.272028] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0069
[527671.272028] Process flush-253:29 (pid: 16424, ti=cdaba000 task=c17d61c0 task.ti=cdaba000)
[527671.272028] Stack:
[527671.272028] cbcbfc00 0000005d 00000040 cbcb0000 cbcbfc00 c2396420 000004c1 ce803700
[527671.272028] <0> c2300530 d08f5d9d c1450050 c100676f ce803700 c219df00 c2396400 cd199be8
[527671.272028] <0> cf830cc0 c17d6404 c306f780 cf754b28 00000009 c108eb9e c2fed0c0 d0bd2020
[527671.272028] Call Trace:
[527671.272028] [<d08f5d9d>] ? make_request+0x27/0x6dd [raid1]
[527671.272028] [<c100676f>] ? xen_restore_fl_direct_end+0x0/0x1
[527671.272028] [<c108eb9e>] ? find_get_page+0x1f/0x85
[527671.272028] [<d0a552e6>] ? md_make_request+0xa4/0xd8 [md_mod]
[527671.272028] [<c11316c5>] ? generic_make_request+0x266/0x2b4
[527671.272028] [<d09d18bb>] ? dm_merge_bvec+0xfd/0x13d [dm_mod]
[527671.272028] [<d09d18da>] ? dm_merge_bvec+0x11c/0x13d [dm_mod]
[527671.272028] [<d09d17be>] ? dm_merge_bvec+0x0/0x13d [dm_mod]
[527671.272028] [<c10d9699>] ? __bio_add_page+0x155/0x220
[527671.272028] [<c10908c6>] ? mempool_alloc+0x3b/0xdd
[527671.272028] [<c11317cf>] ? submit_bio+0xbc/0xd6
[527671.272028] [<c10d978c>] ? bio_add_page+0x28/0x2e
[527671.272028] [<d0b2d84b>] ? _xfs_buf_ioapply+0x206/0x22b [xfs]
[527671.272028] [<d0b2e254>] ? xfs_buf_iorequest+0x38/0x60 [xfs]
[527671.272028] [<d0b31809>] ? xfs_bdstrat_cb+0x32/0x35 [xfs]
[527671.272028] [<d0b15aa1>] ? xfs_iflush+0x1d9/0x236 [xfs]
[527671.272028] [<d0b32d95>] ? xfs_fs_write_inode+0xbd/0xf1 [xfs]
[527671.272028] [<c10d181a>] ? writeback_single_inode+0xf8/0x273
[527671.272028] [<c10d2354>] ? writeback_inodes_wb+0x3dd/0x49c
[527671.272028] [<c10d2528>] ? wb_writeback+0x115/0x178
[527671.272028] [<c10d272f>] ? wb_do_writeback+0x121/0x131
[527671.272028] [<c1042967>] ? process_timeout+0x0/0x5
[527671.272028] [<c10d2760>] ? bdi_writeback_task+0x21/0x89
[527671.272028] [<c109fa85>] ? bdi_start_fn+0x59/0xa4
[527671.272028] [<c109fa2c>] ? bdi_start_fn+0x0/0xa4
[527671.272028] [<c104b348>] ? kthread+0x61/0x66
[527671.272028] [<c104b2e7>] ? kthread+0x0/0x66
[527671.272028] [<c1009b07>] ? kernel_thread_helper+0x7/0x10
[527671.272028] Code: eb 05 b9 fe ff ff ff 5a 89 c8 59 5b 5e 5f 5d c3 55 57 56 53 89 c3 83 ec 14 f6 42 14 01 0f 84 25 01 00 00 8b 40 24 83 f8 01 75 04 <0f> 0b eb fe 31 ff 83 f8 02 75 30 c7 43 24 00 00 00 00 8d 83 48
[527671.272028] EIP: [<d0a5390a>] md_write_start+0x1b/0x140 [md_mod] SS:ESP 0069:cdabbcd8
[527671.272028] ---[ end trace 3e0021f3cbea08f2 ]---
[527671.272034] ------------[ cut here ]------------
[527671.272034] kernel BUG at /build/buildd-linux-2.6_2.6.32-31-i386-qYaaJr/linux-2.6-2.6.32/debian/build/source_i386_xen/drivers/md/md.c:6199!
[527671.272034] invalid opcode: 0000 [#3] SMP
[527671.272034] last sysfs file: /sys/devices/pci0000:01/0000:01:06.0/host2/rport-2:0-1/target2:0:1/2:0:1:11/state
[527671.272034] Modules linked in: xt_physdev xen_evtchn xenfs bridge 8021q garp stp bonding ip6t_REJECT ip6t_LOG nf_conntrack_ipv6 ip6table_filter ip6_tables xt_recent ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp ipt_LOG xt_limit xt_multiport iptable_filter ip_tables ebtable_filter ebtables x_tables ext2 mbcache dm_round_robin scsi_dh_emc dm_multipath scsi_dh ipmi_devintf ipmi_si ipmi_msghandler snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr shpchp evdev pci_hotplug psmouse dcdbas serio_raw pl2303 usbserial i2c_piix4 button i2c_core processor acpi_processor xfs exportfs dm_mod raid1 md_mod sd_mod crc_t10dif sg sr_mod cdrom ata_generic qla2xxx ohci_hcd aic7xxx scsi_transport_spi pata_serverworks scsi_transport_fc ehci_hcd libata scsi_tgt usbcore nls_base tg3 libphy floppy scsi_mod thermal thermal_sys [last unloaded: scsi_wait_scan]
[527671.272034]
[527671.272034] Pid: 1870, comm: kdmflush Tainted: G D (2.6.32-5-xen-686 #1) PowerEdge 2650
[527671.272034] EIP: 0061:[<d0a5390a>] EFLAGS: 00010246 CPU: 2
[527671.272034] EIP is at md_write_start+0x1b/0x140 [md_mod]
[527671.272034] EAX: 00000001 EBX: c2396400 ECX: d08f69c8 EDX: cf9f7500
[527671.272034] ESI: 00000021 EDI: cf9f7500 EBP: c2300530 ESP: cc919da8
[527671.272034] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0069
[527671.272034] Process kdmflush (pid: 1870, ti=cc918000 task=cfdaa640 task.ti=cc918000)
[527671.272034] Stack:
[527671.272034] 0001dfe9 d14411be 0001dfe9 c1021407 d14411be c2396420 00000021 cf9f7500
[527671.272034] <0> c2300530 d08f5d9d 0001dfea 0a8042b0 cf9f7500 c219df00 c2396400 cff6aa80
[527671.272034] <0> c30a1320 cff6aaac c30b0e58 00000001 c30b0e20 c102ce6b 9b4986df 00008a06
[527671.272034] Call Trace:
[527671.272034] [<c1021407>] ? pvclock_clocksource_read+0xf9/0x10f
[527671.272034] [<d08f5d9d>] ? make_request+0x27/0x6dd [raid1]
[527671.272034] [<c102ce6b>] ? enqueue_entity+0x82/0x129
[527671.272034] [<c11992d1>] ? HYPERVISOR_event_channel_op+0x15/0x4c
[527671.272034] [<c102dcd6>] ? enqueue_task_fair+0x38/0x6d
[527671.272034] [<d0a552e6>] ? md_make_request+0xa4/0xd8 [md_mod]
[527671.272034] [<c10902c6>] ? generic_file_aio_read+0x362/0x57b
[527671.272034] [<c100676f>] ? xen_restore_fl_direct_end+0x0/0x1
[527671.272034] [<c10b7020>] ? kmem_cache_alloc+0x79/0xe5
[527671.272034] [<c11316c5>] ? generic_make_request+0x266/0x2b4
[527671.272034] [<c10908c6>] ? mempool_alloc+0x3b/0xdd
[527671.272034] [<d09d01e4>] ? __map_bio+0x35/0xdd [dm_mod]
[527671.272034] [<d09d0fbf>] ? __split_and_process_bio+0x1c6/0x6c5 [dm_mod]
[527671.272034] [<c128f229>] ? _spin_unlock_irqrestore+0xd/0xf
[527671.272034] [<d0a5223e>] ? md_wakeup_thread+0x22/0x24 [md_mod]
[527671.272034] [<c112bc9c>] ? blk_unplug+0x2e/0x31
[527671.272034] [<c1006778>] ? check_events+0x8/0xc
[527671.272034] [<c1006048>] ? xen_force_evtchn_callback+0xc/0x10
[527671.272034] [<c1006778>] ? check_events+0x8/0xc
[527671.272034] [<c103457e>] ? default_wake_function+0x0/0x8
[527671.272034] [<d09d14f8>] ? dm_flush+0x3a/0x48 [dm_mod]
[527671.272034] [<d09d1599>] ? dm_wq_work+0x93/0x114 [dm_mod]
[527671.272034] [<c1048843>] ? worker_thread+0x141/0x1bd
[527671.272034] [<d09d1506>] ? dm_wq_work+0x0/0x114 [dm_mod]
[527671.272034] [<c104b57a>] ? autoremove_wake_function+0x0/0x2d
[527671.272034] [<c1048702>] ? worker_thread+0x0/0x1bd
[527671.272034] [<c104b348>] ? kthread+0x61/0x66
[527671.272034] [<c104b2e7>] ? kthread+0x0/0x66
[527671.272034] [<c1009b07>] ? kernel_thread_helper+0x7/0x10
[527671.272034] Code: eb 05 b9 fe ff ff ff 5a 89 c8 59 5b 5e 5f 5d c3 55 57 56 53 89 c3 83 ec 14 f6 42 14 01 0f 84 25 01 00 00 8b 40 24 83 f8 01 75 04 <0f> 0b eb fe 31 ff 83 f8 02 75 30 c7 43 24 00 00 00 00 8d 83 48
[527671.272034] EIP: [<d0a5390a>] md_write_start+0x1b/0x140 [md_mod] SS:ESP 0069:cc919da8
[527671.272034] ---[ end trace 3e0021f3cbea08f3 ]---
[527671.305394] ------------[ cut here ]------------
[527671.305591] kernel BUG at /build/buildd-linux-2.6_2.6.32-31-i386-qYaaJr/linux-2.6-2.6.32/debian/build/source_i386_xen/drivers/md/md.c:6199!
[527671.305826] invalid opcode: 0000 [#4] SMP
[527671.306258] last sysfs file: /sys/devices/pci0000:01/0000:01:06.0/host2/rport-2:0-1/target2:0:1/2:0:1:11/state
[527671.306484] Modules linked in: xt_physdev xen_evtchn xenfs bridge 8021q garp stp bonding ip6t_REJECT ip6t_LOG nf_conntrack_ipv6 ip6table_filter ip6_tables xt_recent ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp ipt_LOG xt_limit xt_multiport iptable_filter ip_tables ebtable_filter ebtables x_tables ext2 mbcache dm_round_robin scsi_dh_emc dm_multipath scsi_dh ipmi_devintf ipmi_si ipmi_msghandler snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr shpchp evdev pci_hotplug psmouse dcdbas serio_raw pl2303 usbserial i2c_piix4 button i2c_core processor acpi_processor xfs exportfs dm_mod raid1 md_mod sd_mod crc_t10dif sg sr_mod cdrom ata_generic qla2xxx ohci_hcd aic7xxx scsi_transport_spi pata_serverworks scsi_transport_fc ehci_hcd libata scsi_tgt usbcore nls_base tg3 libphy floppy scsi_mod thermal thermal_sys [last unloaded: scsi_wait_scan]
[527671.309292]
[527671.309292] Pid: 16884, comm: flush-253:27 Tainted: G D (2.6.32-5-xen-686 #1) PowerEdge 2650
[527671.309292] EIP: 0061:[<d0a5390a>] EFLAGS: 00010246 CPU: 2
[527671.309292] EIP is at md_write_start+0x1b/0x140 [md_mod]
[527671.309292] EAX: 00000001 EBX: c2396400 ECX: d08f69c8 EDX: cf9f7a80
[527671.309292] ESI: 000004c1 EDI: cf9f7a80 EBP: c2300530 ESP: ca177cd8
[527671.309292] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0069
[527671.309292] Process flush-253:27 (pid: 16884, ti=ca176000 task=c17d3fc0 task.ti=ca176000)
[527671.309292] Stack:
[527671.309292] cbc7e7b0 0000005d 00000040 cbc70000 cbc7e7b0 c2396420 000004c1 cf9f7a80
[527671.309292] <0> c2300530 d08f5d9d c1450050 c100676f cf9f7a80 c219df00 c2396400 ce0d6900
[527671.309292] <0> cf830cc0 c17d4204 c2f8cf60 cf754d28 00000009 c108eb9e c3024c00 d0bc6020
[527671.309292] Call Trace:
[527671.309292] [<d08f5d9d>] ? make_request+0x27/0x6dd [raid1]
[527671.309292] [<c100676f>] ? xen_restore_fl_direct_end+0x0/0x1
[527671.309292] [<c108eb9e>] ? find_get_page+0x1f/0x85
[527671.309292] [<d0a552e6>] ? md_make_request+0xa4/0xd8 [md_mod]
[527671.309292] [<c11316c5>] ? generic_make_request+0x266/0x2b4
[527671.309292] [<d09d18bb>] ? dm_merge_bvec+0xfd/0x13d [dm_mod]
[527671.309292] [<d09d18da>] ? dm_merge_bvec+0x11c/0x13d [dm_mod]
[527671.309292] [<d09d17be>] ? dm_merge_bvec+0x0/0x13d [dm_mod]
[527671.309292] [<c10d9699>] ? __bio_add_page+0x155/0x220
[527671.309292] [<c10908c6>] ? mempool_alloc+0x3b/0xdd
[527671.309292] [<c11317cf>] ? submit_bio+0xbc/0xd6
[527671.309292] [<c10d978c>] ? bio_add_page+0x28/0x2e
[527671.309292] [<d0b2d84b>] ? _xfs_buf_ioapply+0x206/0x22b [xfs]
[527671.309292] [<d0b2e254>] ? xfs_buf_iorequest+0x38/0x60 [xfs]
[527671.309292] [<d0b31809>] ? xfs_bdstrat_cb+0x32/0x35 [xfs]
[527671.309292] [<d0b15aa1>] ? xfs_iflush+0x1d9/0x236 [xfs]
[527671.309292] [<d0b32d95>] ? xfs_fs_write_inode+0xbd/0xf1 [xfs]
[527671.309292] [<c10d181a>] ? writeback_single_inode+0xf8/0x273
[527671.309292] [<c10d2354>] ? writeback_inodes_wb+0x3dd/0x49c
[527671.309292] [<c10d2528>] ? wb_writeback+0x115/0x178
[527671.309292] [<c10d272f>] ? wb_do_writeback+0x121/0x131
[527671.309292] [<c1042967>] ? process_timeout+0x0/0x5
[527671.309292] [<c10d2760>] ? bdi_writeback_task+0x21/0x89
[527671.309292] [<c109fa85>] ? bdi_start_fn+0x59/0xa4
[527671.309292] [<c109fa2c>] ? bdi_start_fn+0x0/0xa4
[527671.309292] [<c104b348>] ? kthread+0x61/0x66
[527671.309292] [<c104b2e7>] ? kthread+0x0/0x66
[527671.309292] [<c1009b07>] ? kernel_thread_helper+0x7/0x10
[527671.309292] Code: eb 05 b9 fe ff ff ff 5a 89 c8 59 5b 5e 5f 5d c3 55 57 56 53 89 c3 83 ec 14 f6 42 14 01 0f 84 25 01 00 00 8b 40 24 83 f8 01 75 04 <0f> 0b eb fe 31 ff 83 f8 02 75 30 c7 43 24 00 00 00 00 8d 83 48
[527671.309292] EIP: [<d0a5390a>] md_write_start+0x1b/0x140 [md_mod] SS:ESP 0069:ca177cd8
[527671.309292] ---[ end trace 3e0021f3cbea08f4 ]---
[527674.485190] xenbus_dev_shutdown: backend/vif/7/0 timeout closing device
[527705.028364] Firewall heartbeat: IN=bond0 OUT= MAC=00:06:5b:8e:72:72:00:06:5b:8e:71:d5:08:00 SRC=10.253.2.7 DST=10.253.2.8 LEN=236 TOS=0x10 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=38631 DPT=694 LEN=216



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Archive: 20110509175541.11693.32735.reportbug@tac.ki.iif.hu ">http://lists.debian.org/20110509175541.11693.32735.reportbug@tac.ki.iif.hu
 
Old 05-12-2011, 06:32 AM
Ian Campbell
 
Default Bug#626189: linux-image-2.6.32-5-xen-686: kernel BUG (invalid opcode) on reboot -f

On Mon, 2011-05-09 at 19:55 +0200, Ferenc Wagner wrote:
> Package: linux-image-2.6.32-5-xen-686
> Version: 2.6.32-31
> Severity: normal
>
> Hi,
>
> As a STONITH measure, I issued reboot -f on a Xen dom0 while several
> domUs were running. This didn't kill the machine but resulted in the
> BUGs below, and made further interaction impossible, although the kernel
> was running and some firewall logs even made it through the syslog daemon.
> Of course I didn't try to reproduce the issue (it's a production system in
> active/backup HA), but I'm willing to do further experiments that don't
> risk further data loss if needed. This happened on a perfectly stock and
> up-to-date squeeze Xen system running several PV guests.

2.6.32-34 (in stable-proposed-updates) contains fixes to vmalloc syncing
and vunmap which can both have an impact on both LVM and XFS. I think it
would be worth trying that updated kernel.

Cheers,
Ian.

--
Ian Campbell

I am currently transitioning to a new OpenPGP key, please see:
http://www.hellion.org.uk/key-transition-2011-04-27-2F6BCD59-to-79074FA8.txt

Oh, that sound of male ego. You travel halfway across the galaxy and
it's still the same song.
-- Eve McHuron, "Mudd's Women", stardate 1330.1
 
Old 06-27-2011, 08:00 PM
Ferenc Wagner
 
Default Bug#626189: linux-image-2.6.32-5-xen-686: kernel BUG (invalid opcode) on reboot -f

Ian Campbell <ijc@hellion.org.uk> writes:

> On Mon, 2011-05-09 at 19:55 +0200, Ferenc Wagner wrote:
>
>> As a STONITH measure, I issued reboot -f on a Xen dom0 while several
>> domUs were running. This didn't kill the machine but resulted in the
>> BUGs below, and made further interaction impossible, although the kernel
>> was running and some firewall logs even made it through the syslog daemon.
>> Of course I didn't try to reproduce the issue (it's a production system in
>> active/backup HA), but I'm willing to do further experiments that don't
>> risk further data loss if needed. This happened on a perfectly stock and
>> up-to-date squeeze Xen system running several PV guests.
>
> 2.6.32-34 (in stable-proposed-updates) contains fixes to vmalloc syncing
> and vunmap which can both have an impact on both LVM and XFS. I think it
> would be worth trying that updated kernel.

I've upgraded to Debian 6.0.2 right now; it contains 2.6.32-35, so I
guess the fixes you mentioned are applied. During the necessary reboot
I got a much different failure, which may be totally unrelated, or may
shed some light onto this issue, please see below (sorry for the garbled
second Xen console part). The machine failed to reboot, a hard reset
resulted in a RAID resync.

Regards,
Feri.

INIT: Switching to runlevel: 6
INIT: Sending processes the TERM signal
Using makefile-style concurrent boot in runlevel 6.
Stopping Munin-Node: done.
Stopping IPMI event daemon ipmievd.
(XEN) mm.c:2364:d0 Bad type (saw 74000001 != exp 10000000) for mfn 3a12f (pfn 212f)
(XEN) mm.c:2733:d0 Error while pinning mfn 3a12f
(XEN) mm.c:2364:d0 Bad type (saw 74000001 != exp 10000000) for mfn 13a2d0 (pfn 78d0)
(XEN) mm.c:2733:d0 Error while pinning mfn 13a2d0
(XEN) mm.c:2364:d0 Bad type (saw 74000001 != exp 10000000) for mfn 3a0ac (pfn 20ac)
(XEN) mm.c:2733:d0 Error while pinning mfn 3a0ac
(XEN) mm.c:2364:d0 Bad type (saw 74000001 != exp 10000000) for mfn 13a3c4 (pfn 79c4)
(XEN) mm.c:2733:d0 Error while pinning mfn 13a3c4
(XEN) mm.c:2364:d0 Bad type (saw 74000001 != exp 10000000) for mfn 3a777 (pfn 2777)
(XEN) mm.c:2733:d0 Error while pinning mfn 3a777
(XEN) mm.c:2364:d0 Bad type (saw 74000001 != exp 10000000) for mfn 3a12f (pfn 212f)
(XEN) mm.c:868:d0 Attempt to create linear p.t. with write perms
(XEN) mm.c:1330:d0 Failure in alloc_l2_table: entry 64
(XEN) mm.c:2117:d0 Error while validating mfn 1330a0 (pfn eaa0) for type 20000000: caf=80000003 taf=20000001
(XEN) mm.c:1440:d0 Failure in alloc_l3_table: entry 0
(XEN) mm.c:2117:d0 Error while validating mfn 134de7 (pfn cfe7) for type 30000000: caf=80000003 taf=30000001
(XEN) mm.c:2733:d0 Error while pinning mfn 134de7
[4229972.391472] 6 multicall(s) failed: cpu 2
[4229972.391607] Pid: 31057, comm: ntp Tainted: G W 2.6.32-5-xen-686 #1
[4229972.391703] Call Trace:
[4229972.391802] [<c10042e5>] ? xen_mc_flush+0xa2/0x150
[4229972.391890] [<c1004e59>] ? xen_mc_issue+0x11/0x1f
[4229972.391967] [<c1005481>] ? xen_dup_mmap+0x18/0x1e
[4229972.392049] [<c1035f3e>] ? dup_mm+0x2d7/0x389
[4229972.392130] [<c1006778>] ? check_events+0x8/0xc
[4229972.392214] [<c1036960>] ? copy_process+0x91b/0xf28
[4229972.392298] [<c10370a7>] ? do_fork+0x13a/0x2bc
[4229972.392382] [<c10ba219>] ? fd_install+0x1e/0x3c
[4229972.392456] [<c10c17e0>] ? do_pipe_flags+0x8a/0xc8
[4229972.392534] [<c1144963>] ? copy_to_user+0x29/0xf8
[4229972.392606] [<c1007b6e>] ? sys_clone+0x21/0x27
[4229972.392679] [<c1008f9c>] ? syscall_call+0x7/0xb
[4229972.392752] call 1/16: op=14 arg=[ceaa0000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392769] call 2/16: op=14 arg=[c212f000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392784] call 3/16: op=26 arg=[c309b8d0] result=-22 xen_do_pin+0x12/0x45
[4229972.392799] call 4/16: op=14 arg=[c78d0000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392814] call 5/16: op=26 arg=[c309b8e0] result=-22 xen_do_pin+0x12/0x45
[4229972.392829] call 6/16: op=14 arg=[cb63f000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392844] call 7/16: op=14 arg=[c79b7000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392859] call 8/16: op=14 arg=[c20ac000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392874] call 9/16: op=26 arg=[c309b8f0] result=-22 xen_do_pin+0x12/0x45
[4229972.392889] call 10/16: op=14 arg=[c79c4000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392904] call 11/16: op=26 arg=[c309b900] result=-22 xen_do_pin+0x12/0x45
[4229972.392919] call 12/16: op=14 arg=[c2777000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392936] call 13/16: op=26 arg=[c309b910] result=-22 xen_do_pin+0x12/0x45
[4229972.392951] call 14/16: op=14 arg=[ccfe7000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392967] call 15/16: op=14 arg=[cb96d000] result=0 xen_pin_page+0xc6/0xd5
[4229972.392982] call 16/16: op=26 arg=[c309b920] result=-22 xen_do_pin+0x12/0x45
[4229972.392994] ------------[ cut here ]------------
[4229972.393029] WARNING: at /build/buildd-linux-2.6_2.6.32-31-i386-qYaaJr/linux-2.6-2.6.32/debian/build/source_i386_xen/arch/x86/xen/multicalls.c:182 xen_mc_issue+0x11/0x1f()
[4229972.393029] Hardware name: PowerEdge 2650
[4229972.393029] Modules linked in: ebtable_filter xen_evtchn xenfs bridge 8021q garp stp bonding ip6t_REJECT ip6t_LOG nf_conntrack_ipv6 ip6table_filter ip6_tables xt_recent ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp ipt_LOG xt_limit xt_multiport iptable_filter ip_tables ebtables x_tables ext2 mbcache dm_round_robin scsi_dh_emc dm_multipath scsi_dh ipmi_devintf ipmi_si ipmi_msghandler snd_pcm snd_timer snd soundcore shpchp snd_page_alloc pci_hotplug dcdbas evdev pcspkr psmouse serio_raw pl2303 usbserial i2c_piix4 i2c_core processor button acpi_processor xfs exportfs dm_mod raid1 md_mod sd_mod crc_t10dif sg sr_mod cdrom ata_generic qla2xxx ohci_hcd pata_serverworks libata scsi_transport_fc aic7xxx scsi_transport_spi ehci_hcd floppy tg3 scsi_tgt libphy scsi_mod usbcore nls_base thermal thermal_sys [last unloaded: ebtable_filter]
[4229972.393029] Pid: 31057, comm: ntp Tainted: G W 2.6.32-5-xen-686 #1
[4229972.393029] Call Trace:
[4229972.393029] [<c1037799>] ? warn_slowpath_common+0x5e/0x8a
[4229972.393029] [<c10377cf>] ? warn_slowpath_null+0xa/0xc
[4229972.393029] [<c1004e59>] ? xen_mc_issue+0x11/0x1f
[4229972.393029] [<c1005481>] ? xen_dup_mmap+0x18/0x1e
[4229972.393029] [<c1035f3e>] ? dup_mm+0x2d7/0x389
[4229972.393029] [<c1006778>] ? check_events+0x8/0xc
[4229972.393029] [<c1036960>] ? copy_process+0x91b/0xf28
[4229972.393029] [<c10370a7>] ? do_fork+0x13a/0x2bc
[4229972.393029] [<c10ba219>] ? fd_install+0x1e/0x3c
[4229972.393029] [<c10c17e0>] ? do_pipe_flags+0x8a/0xc8
[4229972.393029] [<c1144963>] ? copy_to_user+0x29/0xf8
[4229972.393029] [<c1007b6e>] ? sys_clone+0x21/0x27
[4229972.393029] [<c1008f9c>] ? syscall_call+0x7/0xb
[4229972.393029] ---[ end trace 9f88decb42d7b503 ]---
(XEN) mm.c:2364:d0 Batype (saw 740001 != exp 100000) for mfn 3a12fpfn 212f)
(XEN) mm.c:868:d0 Attpt to create liar p.t. with wre perms
(XEN) mm.c:1330:d0 Faile in alloc_l2_tle: entry 64
(XEN) mm.c:2117:d0rror while valiting mfn 1330a0pfn eaa0) for te 20000000: caf0000003 taf=200001
(XEN) mm.c:440:d0 Failure alloc_l3_tableentry 0
(XEN) mm.c:2117:d0 Errowhile validatinmfn 134de7 (pfnfe7) for type 300000: caf=800003 taf=30000001(XEN) mm.c:25000 Error while italling new bastr 134de7
[4229972.397875] 1 multicall(s) failed: cpu 2
[4229972.397945] Pid: 31057, comm: ntp Tainted: G W 2.6.32-5-xen-686 #1
[4229972.398026] Call Trace:
[4229972.398106] [<c10042e5>] ? xen_mc_flush+0xa2/0x150
[4229972.398177] [<c100395d>] ? xen_end_context_switch+0x8/0x10
[4229972.398251] [<c1007d25>] ? __switch_to+0x124/0x141
[4229972.398321] [<c103a9b4>] ? do_group_exit+0x5f/0x82
[4229972.398390] [<c1008de0>] ? ret_from_fork+0x0/0x1c
[4229972.398463] call 1/5: op=26 arg=[c309b8d0] result=-22 xen_write_cr3+0x5a/0xa1
[4229972.398479] call 2/5: op=3 arg=[68] result=0 xen_mc_entry+0x2b/0x2f
[4229972.398494] call 3/5: op=10 arg=[3b09a030] result=0 load_TLS_descriptor+0x28/0x47
[4229972.398509] call 4/5: op=10 arg=[3b09a038] result=0 load_TLS_descriptor+0x28/0x47
[4229972.398522] call 5/5: op=10 arg=[3b09a040] result=0 load_TLS_descriptor+0x28/0x47
[lots of simiar stuff elided]



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