Hello Chris,
Could you clarify the following statement:
"""
So, step 2 was to add "nox2apic intremap=off" to the DL385-G7s. I added it to
only one of them initially. That machine lasted 9 days before we had another
kernel panic ("NMI watchdog: BUG: soft lockup - CPU#27 stuck for 23s!
[migration/27:200]"), but after the panic it seems to have settled back down
again (without any reboot).
"""
So, I'm not sure if you are "panic'ing on hung tasks" (sysctl option).
The way I read this is that the machine showed a soft lockup BUT the
kernel did not crash and recovered after some time. This might indicate
that, after workload was reduced, the kernel could get back on track
with migration kthread. Could you clarify this ?
You did right.
< G8 cmdline == "nox2apic intremap=off"
>= G8 cmdline == "intremap=no_x2apic_optout"
So, if the kernel (G7) had a soft lockup warning but had no "hard
lockups" (race conditions), then we are good. Judging by the G8, it
looks like that after the change it is still running. Could you clarify
if you changed the c-states (min and packing) firmware options ?
I would recommend you staying in 3.13 if they show stable after firmware
version/options and cmdline were changed. This way we have a way to
"compare" things. As long as they don't have HARD lockups, I think we
will be good.
Let me know if you need any other clarification.
Cheers!
Rafael Tinoco
--
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/1505564
Title:
Soft lockup with "block nbdX: Attempted send on closed socket" spam
Status in linux package in Ubuntu:
In Progress
Bug description:
Hi,
Some of our nova compute hosts regularly freeze, sometimes for a few hours,
with kern.log getting spammed with :
block nbdX: Attempted send on closed socket
and a few "CPU soft lockup" messages (see attached log). This clears up when
the queue gets cleared, eg :
block nbdX: queue cleared
trusty hosts with kernel version 3.19.0-30-generic.
Note that timestamps from kern.log appears to be wrong, it looks like
the messages are being held, and then all delivered at once when the
kernel unfreezes.
Attaching apport files from 2 hosts below.
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Oct 9 13:14 seq
crw-rw---- 1 root audio 116, 33 Oct 9 13:14 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3.15
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 14.04
IwConfig: Error: [Errno 2] No such file or directory
MachineType: HP ProLiant DL385 G7
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic
root=UUID=1bd039df-c419-4cb7-b1ad-fe004d55ccd4 ro console=tty0
console=ttyS1,38400 nosplash
ProcVersionSignature: Ubuntu 3.19.0-30.34~14.04.1-generic 3.19.8-ckt6
RelatedPackageVersions:
linux-restricted-modules-3.19.0-30-generic N/A
linux-backports-modules-3.19.0-30-generic N/A
linux-firmware 1.127.15
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty uec-images
Uname: Linux 3.19.0-30-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 12/08/2012
dmi.bios.vendor: HP
dmi.bios.version: A18
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrA18:bd12/08/2012:svnHP:pnProLiantDL385G7:pvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL385 G7
dmi.sys.vendor: HP
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Oct 9 12:37 seq
crw-rw---- 1 root audio 116, 33 Oct 9 12:37 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3.15
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 14.04
IwConfig: Error: [Errno 2] No such file or directory
MachineType: HP ProLiant DL360p Gen8
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic
root=UUID=f3c6cae8-09dc-4607-8675-c9123ea9c9fd ro console=tty0
console=ttyS1,38400 nosplash
ProcVersionSignature: Ubuntu 3.19.0-30.34~14.04.1-generic 3.19.8-ckt6
RelatedPackageVersions:
linux-restricted-modules-3.19.0-30-generic N/A
linux-backports-modules-3.19.0-30-generic N/A
linux-firmware 1.127.15
RfKill: Error: [Errno 2] No such file or directory
StagingDrivers: visorchannel visorutil
Tags: trusty uec-images staging
Uname: Linux 3.19.0-30-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 11/14/2013
dmi.bios.vendor: HP
dmi.bios.version: P71
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrP71:bd11/14/2013:svnHP:pnProLiantDL360pGen8:pvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL360p Gen8
dmi.sys.vendor: HP
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Oct 28 13:07 seq
crw-rw---- 1 root audio 116, 33 Oct 28 13:07 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3.16
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 14.04
IwConfig: Error: [Errno 2] No such file or directory
MachineType: HP ProLiant DL360p Gen8
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic
root=UUID=46ac2c1e-5f16-45bd-b383-e952f78fd142 ro console=tty0
console=ttyS1,38400 nosplash crashkernel=384M-:512M
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
RelatedPackageVersions:
linux-restricted-modules-3.13.0-29-generic N/A
linux-backports-modules-3.13.0-29-generic N/A
linux-firmware 1.127.15
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty uec-images
Uname: Linux 3.13.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 11/14/2013
dmi.bios.vendor: HP
dmi.bios.version: P71
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrP71:bd11/14/2013:svnHP:pnProLiantDL360pGen8:pvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL360p Gen8
dmi.sys.vendor: HP
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Oct 28 16:31 seq
crw-rw---- 1 root audio 116, 33 Oct 28 16:31 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3.18
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 14.04
IwConfig: Error: [Errno 2] No such file or directory
MachineType: HP ProLiant DL385 G7
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic
root=UUID=29988d72-90fe-4329-a0c1-0e3bfb88beab ro console=tty0
console=ttyS1,38400 nosplash crashkernel=384M-:512M
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware 1.127.15
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty uec-images
Uname: Linux 3.13.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
WifiSyslog:
Oct 29 07:58:52 druk kernel: [55713.346292] nr_pdflush_threads exported in
/proc is scheduled for removal
Oct 29 07:58:52 druk kernel: [55713.346523] sysctl: The
scan_unevictable_pages sysctl/node-interface has been disabled for lack of a
legitimate use case. If you have one, please send an email to
linux...@kvack.org.
_MarkForUpload: True
dmi.bios.date: 02/02/2014
dmi.bios.vendor: HP
dmi.bios.version: A18
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrA18:bd02/02/2014:svnHP:pnProLiantDL385G7:pvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL385 G7
dmi.sys.vendor: HP
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Oct 28 19:56 seq
crw-rw---- 1 root audio 116, 33 Oct 28 19:56 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3.18
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 14.04
IwConfig: Error: [Errno 2] No such file or directory
MachineType: HP ProLiant DL360p Gen8
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic
root=UUID=f3c6cae8-09dc-4607-8675-c9123ea9c9fd ro console=tty0
console=ttyS1,38400 nosplash crashkernel=384M-:512M
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
RelatedPackageVersions:
linux-restricted-modules-3.13.0-29-generic N/A
linux-backports-modules-3.13.0-29-generic N/A
linux-firmware 1.127.15
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty uec-images
Uname: Linux 3.13.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
WifiSyslog:
Oct 29 07:41:34 orlo kernel: [42337.380135] qbrce3298b1-cb: port
2(tapce3298b1-cb) entered disabled state
Oct 29 07:41:34 orlo kernel: [42337.380543] device tapce3298b1-cb left
promiscuous mode
Oct 29 07:41:34 orlo kernel: [42337.380580] qbrce3298b1-cb: port
2(tapce3298b1-cb) entered disabled state
Oct 29 07:41:35 orlo kernel: [42338.223036] type=1400
audit(1446104495.424:137): apparmor="STATUS" operation="profile_remove"
profile="unconfined" name="libvirt-80a3c754-9f62-4011-baea-b3a8f37d3746"
pid=11554 comm="apparmor_parser"
Oct 29 07:41:35 orlo kernel: [42338.308192] qbrce3298b1-cb: port
1(qvbce3298b1-cb) entered disabled state
_MarkForUpload: True
dmi.bios.date: 11/14/2013
dmi.bios.vendor: HP
dmi.bios.version: P71
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrP71:bd11/14/2013:svnHP:pnProLiantDL360pGen8:pvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL360p Gen8
dmi.sys.vendor: HP
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Oct 29 21:10 seq
crw-rw---- 1 root audio 116, 33 Oct 29 21:10 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3.18
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 14.04
IwConfig: Error: [Errno 2] No such file or directory
MachineType: HP ProLiant DL360p Gen8
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-31-generic
root=UUID=f3c6cae8-09dc-4607-8675-c9123ea9c9fd ro console=tty0
console=ttyS1,38400 nosplash crashkernel=384M-:512M
ProcVersionSignature: Ubuntu 3.19.0-31.36~14.04.1-generic 3.19.8-ckt7
RelatedPackageVersions:
linux-restricted-modules-3.19.0-31-generic N/A
linux-backports-modules-3.19.0-31-generic N/A
linux-firmware 1.127.16
RfKill: Error: [Errno 2] No such file or directory
StagingDrivers: visorchannel visorutil
Tags: trusty uec-images staging
Uname: Linux 3.19.0-31-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 11/14/2013
dmi.bios.vendor: HP
dmi.bios.version: P71
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrP71:bd11/14/2013:svnHP:pnProLiantDL360pGen8:pvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL360p Gen8
dmi.sys.vendor: HP
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Oct 30 12:31 seq
crw-rw---- 1 root audio 116, 33 Oct 30 12:31 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3.18
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 14.04
IwConfig: Error: [Errno 2] No such file or directory
MachineType: HP ProLiant DL360p Gen8
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-31-generic
root=UUID=46ac2c1e-5f16-45bd-b383-e952f78fd142 ro console=tty0
console=ttyS1,38400 nosplash crashkernel=384M-:512M
ProcVersionSignature: Ubuntu 3.19.0-31.36~14.04.1-generic 3.19.8-ckt7
RelatedPackageVersions:
linux-restricted-modules-3.19.0-31-generic N/A
linux-backports-modules-3.19.0-31-generic N/A
linux-firmware 1.127.16
RfKill: Error: [Errno 2] No such file or directory
StagingDrivers: visorchannel visorutil
Tags: trusty uec-images staging
Uname: Linux 3.19.0-31-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 11/14/2013
dmi.bios.vendor: HP
dmi.bios.version: P71
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrP71:bd11/14/2013:svnHP:pnProLiantDL360pGen8:pvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL360p Gen8
dmi.sys.vendor: HP
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