Ubuntu
linux package

Kernel oops when nbd device is removed before it is unmounted

Bug #861656 reported by Serge Hallyn on 2011-09-28

This bug affects 5 people

	Status	Importance	Assigned to
linux (Ubuntu)	Invalid	Undecided	Unassigned
Oneiric	Invalid	Undecided	Unassigned
Quantal	Won't Fix	Undecided	Unassigned
nova (Ubuntu)	Fix Released	High	Chuck Short
Oneiric	Invalid	High	Unassigned
Quantal	Invalid	High	Chuck Short
qemu-kvm (Ubuntu)	Invalid	Undecided	Unassigned
Oneiric	Invalid	Undecided	Unassigned
Quantal	Invalid	Undecided	Unassigned

Bug Description

My host has xfs rootfs. It runs openstack with lxc, which creates the container root filesystems on qemu-nbd block devices with ext4fs by default.

For probably 1 in 8 containers, when the host is working hard, I end up with ext4 errors which in the end prevent the host from cleanly rebooting. http://people.canonical.com/~serge/20110927_001.jpg is one example. Here is another one:

[ 178.736380] JBD2: I/O error detected when updating journal superblock for nbd13-8.
[ 178.736567] journal commit I/O error
[ 182.374588] br100: port 4(veth2) entering forwarding state
[ 182.376240] device veth2 left promiscuous mode
[ 182.376245] br100: port 4(veth2) entering disabled state
[ 182.983726] nbd14: NBD_DISCONNECT
[ 182.983979] nbd14: Receive control failed (result -32)
[ 182.984075] nbd14: queue cleared
[ 182.984525] nbd14: Attempted send on closed socket
[ 182.984530] end_request: I/O error, dev nbd14, sector 328280
[ 182.984533] Buffer I/O error on device nbd14, logical block 41035
[ 182.984538] EXT4-fs warning (device nbd14): ext4_end_bio:242: I/O error writing to inode 32327 (offset 0 size 4096 starting block 41036)
[ 182.984597] nbd14: Attempted send on closed socket
[ 182.984600] end_request: I/O error, dev nbd14, sector 328256
[ 182.984602] Buffer I/O error on device nbd14, logical block 41032
[ 182.984605] EXT4-fs warning (device nbd14): ext4_end_bio:242: I/O error writing to inode 32342 (offset 0 size 4096 starting block 41033)
[ 182.984770] JBD2: Detected IO errors while flushing file data on nbd14-8
[ 182.984776] nbd14: Attempted send on closed socket
[ 182.984779] end_request: I/O error, dev nbd14, sector 1049856
[ 182.984794] Aborting journal on device nbd14-8.
[ 182.984802] nbd14: Attempted send on closed socket
[ 182.984804] end_request: I/O error, dev nbd14, sector 1048576
[ 182.984807] Buffer I/O error on device nbd14, logical block 131072
[ 182.984809] lost page write due to I/O error on nbd14
[ 182.984812] JBD2: I/O error detected when updating journal superblock for nbd14-8.
[ 182.984825] journal commit I/O error
[ 184.789984] br100: port 3(veth1) entering forwarding state
[ 184.791634] device veth1 left promiscuous mode
[ 184.791639] br100: port 3(veth1) entering disabled state
[ 185.236242] nbd12: NBD_DISCONNECT
[ 185.236362] nbd12: Receive control failed (result -32)
[ 185.236418] nbd12: queue cleared
[ 185.236734] nbd12: Attempted send on closed socket
[ 185.236737] end_request: I/O error, dev nbd12, sector 328280
[ 185.236740] Buffer I/O error on device nbd12, logical block 41035
[ 185.236745] EXT4-fs warning (device nbd12): ext4_end_bio:242: I/O error writing to inode 32327 (offset 0 size 4096 starting block 41036)
[ 185.236804] nbd12: Attempted send on closed socket
[ 185.236806] end_request: I/O error, dev nbd12, sector 328256
[ 185.236809] Buffer I/O error on device nbd12, logical block 41032
[ 185.236812] EXT4-fs warning (device nbd12): ext4_end_bio:242: I/O error writing to inode 32342 (offset 0 size 4096 starting block 41033)
[ 185.236998] JBD2: Detected IO errors while flushing file data on nbd12-8
[ 185.237005] nbd12: Attempted send on closed socket
[ 185.237007] end_request: I/O error, dev nbd12, sector 1049856
[ 185.237025] Aborting journal on device nbd12-8.
[ 185.237034] nbd12: Attempted send on closed socket
[ 185.237036] end_request: I/O error, dev nbd12, sector 1048576
[ 185.237039] Buffer I/O error on device nbd12, logical block 131072
[ 185.237041] lost page write due to I/O error on nbd12
[ 185.237044] JBD2: I/O error detected when updating journal superblock for nbd12-8.
[ 185.237059] journal commit I/O error
[ 185.342363] nbd14: Attempted send on closed socket
[ 185.342369] end_request: I/O error, dev nbd14, sector 0
[ 185.342374] Buffer I/O error on device nbd14, logical block 0
[ 185.342375] lost page write due to I/O error on nbd14
[ 185.342388] EXT4-fs error (device nbd14): ext4_put_super:771: Couldn't clean up the journal
[ 185.342392] EXT4-fs (nbd14): Remounting filesystem read-only
[ 185.342394] EXT4-fs (nbd14): previous I/O error to superblock detected
[ 185.342399] nbd14: Attempted send on closed socket
[ 185.342401] end_request: I/O error, dev nbd14, sector 0
[ 185.342404] Buffer I/O error on device nbd14, logical block 0
[ 185.342405] lost page write due to I/O error on nbd14
[ 185.352231] nbd12: Attempted send on closed socket
[ 185.352236] end_request: I/O error, dev nbd12, sector 0
[ 185.352239] Buffer I/O error on device nbd12, logical block 0
[ 185.352241] lost page write due to I/O error on nbd12
[ 185.352252] EXT4-fs error (device nbd12): ext4_put_super:771: Couldn't clean up the journal
[ 185.352256] EXT4-fs (nbd12): Remounting filesystem read-only
[ 185.352258] EXT4-fs (nbd12): previous I/O error to superblock detected

[ 178.733767] nbd13: NBD_DISCONNECT
[ 178.733865] nbd13: Receive control failed (result -32)
[ 178.733911] nbd13: shutting down socket
[ 178.733914] nbd13: queue cleared
[ 178.734250] nbd13: Attempted send on closed socket
[ 178.734254] end_request: I/O error, dev nbd13, sector 328280
[ 178.734257] Buffer I/O error on device nbd13, logical block 41035
[ 178.734262] EXT4-fs warning (device nbd13): ext4_end_bio:242: I/O error writing to inode 32327 (offset 0 size 4096 starting block 41036)
[ 178.734334] nbd13: Attempted send on closed socket
[ 178.734336] end_request: I/O error, dev nbd13, sector 328256
[ 178.734338] Buffer I/O error on device nbd13, logical block 41032
[ 178.734342] EXT4-fs warning (device nbd13): ext4_end_bio:242: I/O error writing to inode 32342 (offset 0 size 4096 starting block 41033)
[ 178.736325] JBD2: Detected IO errors while flushing file data on nbd13-8
[ 178.736339] nbd13: Attempted send on closed socket
[ 178.736343] end_request: I/O error, dev nbd13, sector 1049856
[ 178.736361] Aborting journal on device nbd13-8.
[ 178.736370] nbd13: Attempted send on closed socket
[ 178.736372] end_request: I/O error, dev nbd13, sector 1048576
[ 178.736375] Buffer I/O error on device nbd13, logical block 131072
[ 178.736377] lost page write due to I/O error on nbd13
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu2
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: serge 18231 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf6afc000 irq 47'
   Mixer name : 'Conexant CX20583 (Pebble HSF)'
   Components : 'HDA:14f15067,102802d8,00100300'
   Controls : 9
   Simple ctrls : 6
DistroRelease: Ubuntu 11.10
HibernationDevice: RESUME=UUID=6dd34b33-9e9e-46ef-9cd8-3ce1c68b7da3
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
MachineType: Dell Inc. Vostro 1220
NonfreeKernelModules: wl
Package: linux (not installed)
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=d31d979b-16d0-4522-9043-23b4f85aeb89 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
RelatedPackageVersions:
linux-restricted-modules-3.0.0-12-generic N/A
linux-backports-modules-3.0.0-12-generic N/A
linux-firmware 1.60
Tags: oneiric running-unity
Uname: Linux 3.0.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout kvm libvirtd lpadmin plugdev sambashare
dmi.bios.date: 10/15/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.3.0
dmi.board.name: 0X482M
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.3.0:bd10/15/2009:svnDellInc.:pnVostro1220:pvr:rvnDellInc.:rn0X482M:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Vostro 1220
dmi.sys.vendor: Dell Inc.
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu2
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: serge 7491 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf6afc000 irq 47'
   Mixer name : 'Conexant CX20583 (Pebble HSF)'
   Components : 'HDA:14f15067,102802d8,00100300'
   Controls : 9
   Simple ctrls : 6
DistroRelease: Ubuntu 11.10
HibernationDevice: RESUME=UUID=6dd34b33-9e9e-46ef-9cd8-3ce1c68b7da3
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
MachineType: Dell Inc. Vostro 1220
NonfreeKernelModules: wl
Package: linux (not installed)
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=d31d979b-16d0-4522-9043-23b4f85aeb89 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
RelatedPackageVersions:
linux-restricted-modules-3.0.0-12-generic N/A
linux-backports-modules-3.0.0-12-generic N/A
linux-firmware 1.60
Tags: oneiric running-unity
Uname: Linux 3.0.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout kvm libvirtd lpadmin plugdev sambashare
dmi.bios.date: 10/15/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.3.0
dmi.board.name: 0X482M
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.3.0:bd10/15/2009:svnDellInc.:pnVostro1220:pvr:rvnDellInc.:rn0X482M:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Vostro 1220
dmi.sys.vendor: Dell Inc.

See original description

Tags:

Revision history for this message

Brad Figg (brad-figg) wrote on 2011-09-28: Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 861656

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status:	New → Incomplete

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: AcpiTables.txt

AcpiTables.txt Edit (128.7 KiB, text/plain)

apport information

tags:	added: apport-collected oneiric running-unity
description:	updated

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: AlsaDevices.txt

AlsaDevices.txt Edit (410 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: BootDmesg.txt

BootDmesg.txt Edit (60.7 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: Card0.Amixer.values.txt

Card0.Amixer.values.txt Edit (1.1 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: Card0.Codecs.codec.0.txt

Card0.Codecs.codec.0.txt Edit (8.2 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: CurrentDmesg.txt

CurrentDmesg.txt Edit (7.4 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: IwConfig.txt

IwConfig.txt Edit (455 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: Lspci.txt

Lspci.txt Edit (13.5 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: Lsusb.txt

#10

Lsusb.txt Edit (967 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: PciMultimedia.txt

#11

PciMultimedia.txt Edit (586 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: ProcCpuinfo.txt

#12

ProcCpuinfo.txt Edit (1.5 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: ProcInterrupts.txt

#13

ProcInterrupts.txt Edit (1.4 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: ProcModules.txt

#14

ProcModules.txt Edit (4.7 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: PulseSinks.txt

#15

PulseSinks.txt Edit (2.1 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: PulseSources.txt

#16

PulseSources.txt Edit (3.2 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: RfKill.txt

#17

RfKill.txt Edit (244 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: UdevDb.txt

#18

UdevDb.txt Edit (137.0 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: UdevLog.txt

#19

UdevLog.txt Edit (286.1 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: WifiSyslog.txt

#20

WifiSyslog.txt Edit (1.4 MiB, text/plain)

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Changed in linux (Ubuntu):
status:	Incomplete → Confirmed

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Chuck Short (zulcss) wrote on 2011-09-28: Re: many ext4 errors

#21

I similar messages in my syslog:

kern.log.1:Sep 20 19:57:41 kyle kernel: [33637.113487] Buffer I/O error on device nbd11, logical block 175536
kern.log.1:Sep 20 19:57:41 kyle kernel: [33637.115168] EXT4-fs warning (device nbd11): ext4_end_bio:242: I/O error writing to inode 32819 (offset 720896 size 4096 starting block 175537)
kern.log.1:Sep 20 19:57:41 kyle kernel: [33637.121937] nbd11: Attempted send on closed socket
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.277883] nbd12: NBD_DISCONNECT
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.282922] nbd12: Receive control failed (result -32)
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.287766] nbd12: queue cleared
kern.log.1:Sep 20 19:57:45 kyle kernel: 4[34.056 X4f ann dvc b1) x4edbo22 / ro rtn oioe381(fst352 ie49 trigbok167)<3>[33641.343984] Aborting journal on device nbd12-8.
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.346785] nbd12: Attempted send on closed socket
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.349576] end_request: I/O error, dev nbd12, sector 1048576
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.352019] Buffer I/O error on device nbd12, logical block 131072
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.352019] lost page write due to I/O error on nbd12
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.352455] JBD2: I/O error detected when updating journal superblock for nbd12-8.
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.460332] nbd12: Attempted send on closed socket
kern.log.1:Sep 20 19:57:45 kyle kernel: [33641.497480] nbd12: Attempted send on closed socket<3>361525]edrqet / ro,dvnd2 etr0<3>[33641.508089] Buffer I/O error on device nbd12, logical blok 0
kern.log.1:Sep 20 19:57:59 kyle kernel: [33655.528128] nbd13: NBD_DISCONNECT
kern.log.1:Sep 20 19:57:59 kyle kernel: [33655.533309] nbd13: Receive control failed (result -32)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-28: Re: [Bug 861656] Re: many ext4 errors

#22

I suppose this means it could just as well be an nbd bug.

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: AcpiTables.txt

#23

AcpiTables.txt Edit (128.7 KiB, text/plain)

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description:

updated

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: AlsaDevices.txt

#24

AlsaDevices.txt Edit (410 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: BootDmesg.txt

#25

BootDmesg.txt Edit (59.4 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: Card0.Amixer.values.txt

#26

Card0.Amixer.values.txt Edit (1.1 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: Card0.Codecs.codec.0.txt

#27

Card0.Codecs.codec.0.txt Edit (8.2 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: CurrentDmesg.txt

#28

CurrentDmesg.txt Edit (48.9 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: IwConfig.txt

#29

IwConfig.txt Edit (315 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: Lspci.txt

#30

Lspci.txt Edit (13.5 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: Lsusb.txt

#31

Lsusb.txt Edit (967 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: PciMultimedia.txt

#32

PciMultimedia.txt Edit (586 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: ProcCpuinfo.txt

#33

ProcCpuinfo.txt Edit (1.5 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: ProcInterrupts.txt

#34

ProcInterrupts.txt Edit (1.4 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: ProcModules.txt

#35

ProcModules.txt Edit (4.7 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: PulseSinks.txt

#36

PulseSinks.txt Edit (2.1 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: PulseSources.txt

#37

PulseSources.txt Edit (3.2 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: RfKill.txt

#38

RfKill.txt Edit (244 bytes, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: UdevDb.txt

#39

UdevDb.txt Edit (136.8 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: UdevLog.txt

#40

UdevLog.txt Edit (287.1 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: WifiSyslog.txt

#41

WifiSyslog.txt Edit (723.8 KiB, text/plain)

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30: Re: many ext4 errors

#42

qemu-nbd-oops.sh Edit (252 bytes, text/x-sh)

At last - a quick reproducer. This 15 line script oopses my kernel every time.

The cause then appears to be the removal of the qemu-nbd device before it has been unmounted.

I don't know if qemu-nbd is supposed to know that it shouldn't allow itself to be removed while mounted, or whether the kernel should be returning -EBUSY somewhere. I don't know that "just don't do that" is a sufficient answer here.

summary:

- many ext4 errors
+ Kernel oops when nbd device is removed before it is unmounted

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Serge Hallyn (serge-hallyn) wrote on 2011-09-30:

#43

The kernel should (imo) return -EBUSY when when asked to disconnect a mounted nbd device. It'd be trivial to do. But consensus is that it'd be refused because it should behave like all other disks.

Kvm's qemu-nbd.c *could* detect the condition as well. But the check there would be racy.

So we will propose a patch to have nova refuse the disconnect if the device is busy.

Changed in nova (Ubuntu):
status:	New → Confirmed
Changed in qemu-kvm (Ubuntu):
status:	New → Confirmed

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Serge Hallyn (serge-hallyn) wrote on 2011-10-04:

#44

debdiff solving the issue Edit (2.7 KiB, text/plain)

@Chuck,

Changed in nova (Ubuntu):
assignee:	nobody → Chuck Short (zulcss)
importance:	Undecided → High

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Serge Hallyn (serge-hallyn) wrote on 2011-10-04:

#45

@Chuck,

assigned this bug to you in the hopes that you can push the debdiff or merge it with any changes you were going to push. I haven't gotten a single ext4 issue with this patch applied.

Revision history for this message

Ubuntu Foundations Team Bug Bot (crichton) wrote on 2011-10-04:

#46

The attachment "debdiff solving the issue" of this bug report has been identified as being a patch in the form of a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-sponsors please also unsubscribe the team from this bug report.

[This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.]

tags:

added: patch

Revision history for this message

Dave Walker (davewalker) wrote on 2011-10-04:

#47

@Serge, Please can you propose your nova patch against upstream trunk? Would really like to get it merged, or even reviewed for trunk and then cherry pick it back.

Thanks.

Revision history for this message

Serge Hallyn (serge-hallyn) wrote on 2011-10-04: Re: [Bug 861656] Re: Kernel oops when nbd device is removed before it is unmounted

#48

Quoting Dave Walker (<email address hidden>):
> @Serge, Please can you propose your nova patch against upstream trunk?
> Would really like to get it merged, or even reviewed for trunk and then
> cherry pick it back.

https://lists.launchpad.net/openstack/msg04463.html

Serge Hallyn (serge-hallyn) on 2011-10-04

Changed in linux (Ubuntu):
status:	Confirmed → Invalid
Changed in qemu-kvm (Ubuntu):
status:	Confirmed → Invalid

Revision history for this message

Kate Stewart (kate.stewart) wrote on 2012-03-23:

#49

Not seeing evidence of this showing up in Precise, making it explicit this was found in oneiric.

Changed in qemu-kvm (Ubuntu Oneiric):
status:	New → Invalid
Changed in linux (Ubuntu Oneiric):
status:	New → Invalid
Changed in nova (Ubuntu Oneiric):
status:	New → Confirmed
importance:	Undecided → High

Chuck Short (zulcss) on 2012-10-04

Changed in linux (Ubuntu):
status:	Invalid → Confirmed
Changed in linux (Ubuntu Oneiric):
status:	Invalid → Confirmed

Chuck Short (zulcss) on 2013-02-28

Changed in nova (Ubuntu):
status:	Confirmed → Fix Released

Revision history for this message

dino99 (9d9) wrote on 2013-05-18:

#50

is it still an issue ? (comment #49)
https://wiki.ubuntu.com/Releases

tags:	added: quantal removed: oneiric
Changed in linux (Ubuntu Oneiric):
status:	Confirmed → Invalid
Changed in nova (Ubuntu Oneiric):
status:	Confirmed → Invalid
Changed in nova (Ubuntu Quantal):
status:	Confirmed → Incomplete
Changed in linux (Ubuntu Quantal):
status:	Confirmed → Incomplete
Changed in linux (Ubuntu):
status:	Confirmed → Incomplete

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2014-09-15: Closing unsupported series nomination.

#51

This bug was nominated against a series that is no longer supported, ie quantal. The bug task representing the quantal nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.