** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
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SRU Justification:
Impact:
The CONFIG_CONTEXT_TRACKING_FORCE should be disabled for
various reasons:
1. As described in the Kconfig this option brings an
overhead that you don't want in production and also
Say Y only if you're working on the development of an
architecture backend for the
Tested on:
Linux ubuntu 3.13.0-35-generic #62-Ubuntu SMP Fri Aug 15 01:58:42 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux, the perl script now does not exit
and works as expected.
** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty
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@Daniel, these commits are present in Trusty.
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Title:
ext4 random block I/O write performance regression with 3.11 Saucy
Kernel
I can't reproduce this with the latest version of fwts 14.09.00 and the
3.13.0-37 kernel. Can you re-test this for me with the latest fwts and
kernel?
** Changed in: linux (Ubuntu)
Status: Confirmed = Incomplete
** Changed in: fwts
Status: Confirmed = Incomplete
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This bug has not been updated since December 2012. Marking it as won't
fix. If the issue occurs again, please re-open the bug.
** Changed in: linux (Ubuntu)
Status: Incomplete = Won't Fix
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Correction, I can see the failure now, I didn't observe the final
hwclock was timing out after 10 seconds since I was using utopic
userspace and not trusty userspace hwclock.
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Just a note:
1. The utopic version of hwclock has a 10 second timeout but does not report a
timeout error (which is misleading)
2. The trusty version reports the timeout, but prints the errno from the
previous system call, so the error message is misleading
3. When I get hwclock time-out the
** Changed in: linux (Ubuntu)
Status: Incomplete = In Progress
** Changed in: fwts
Status: Incomplete = In Progress
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Fix sent upstream for review. https://lkml.org/lkml/2014/9/26/701
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Title:
Hibernate with fwts will cause hwclock command to time
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** No longer affects: fwts
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Title:
Hibernate with fwts will cause
The High temperature of temp1: +90.0°C (crit = +103.0°C) probably kicked
in passive cooling (via thermald) and this will clock down the CPU hence
it will run slower to try and reduce the temperature.
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** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
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Title:
btrfs oops on current 3.13
Status
I've added a futex stressor that rapidly does wait wait timeout and wake
futex calls to stress-ng. My intention is not to add too much complexity
to stress-ng as the core intention of stress-ng is to rapidly exercise
the interface in a specific way, rather than be a thorough and wide per-
system
** Changed in: stress-ng (Ubuntu Vivid)
Status: In Progress = Fix Committed
** Changed in: stress-ng (Ubuntu Vivid)
Importance: Undecided = Low
** Changed in: stress-ng (Ubuntu Vivid)
Milestone: None = ubuntu-14.11
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We've moved to the intel-pstate driver by default for 14.10 which is an
improved frequency scaling driver. On some hardware we've had evidence
of this pushing the CPU a little harder and some machines were running
hot, so we've also included thermald to stop thermal overruns.
Also, thermald has
I forgot to mention that thermald does exit if the H/W or visualized H/W
does not support the necessary thermal controls, so on these systems
it's more like a no-op.
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Made some progress today.
On the phone, I am seeing:
/var/lib/apparmor/profiles/click_com.ubuntu.filemanager_filemanager_0.3.275
containing a pathname and all zeros. The start is always on a page
boundary and the end is always on a page boundary.
I copied the entire partition /dev/mmcblk0p23
The corruption to
/var/lib/apparmor/profiles/click_com.ubuntu.filemanager_filemanager_0.3.275
survives multiple reboots. I'll take another 6GB snapshot of the
underlying partition and see if that's now corrupted.
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After several reboots, the data still appears corrupted on the phone,
but copying the underlying raw device /dev/mmcblk0p23 to my laptop and
loop mounting it and then loop mounting ubuntu.img shows an uncorrupted
var/lib/apparmor/profiles/click_com.ubuntu.filemanager_filemanager_0.3.275.
I'm now
Ruled out the bind mount of /var/lib/apparmor/profiles on /userdata
/system-data/var/lib/apparmor/profiles, still see corruption there on
the device
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Sanity checked the raw data from /dev/mmcblk0p23:
1. copied raw data off the phone to may laptop
2. using sshfs, mounted the directory containing the raw data snapshot back on
the phone
3. loop mounted it
4. loop mounted ubuntu.img from this
5. /ubuntu/var/lib/apparmor/profiles is sane, no
On the phone:
debugfs /userdata/ubuntu.img
cat /var/lib/apparmor/profiles/click_com.ubuntu.filemanager_filemanage
# vim:syntax=apparmor
#include tunables/global
# Define vars with unconfined since autopilot rules may reference them
# Specified profile variables
@{APP_APPNAME}=filemanager
I've searched the entire block device for the string
/usr/share/click/preinstalled/com.ubuntu.music/1.3.625/apparmor.json and
tagged it in such a way as it is obvious it that it has been modified on
the flash drive. I rebooted and double checked - the modified data is
still modified on disk
What does the following command report:
which thermald
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
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So try re-installing it and seeing if that fixes things for you:
sudo apt-get --reinstall install thermald
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Title:
Failed to spawn
After a lot of deep digging into the bind mount, loop driver, and buffer
cache and tracking the corrupt pages back down the layers of the stack
we've sanity checked this down to the image. The smoking gun was the
kernel message:
Nov 6 12:15:16 ubuntu-phablet kernel: [3.940485] do_mount:
I did originally think Btrfs: check file extent type before anything
else may have been a suitable fix for this
(https://bugzilla.kernel.org/show_bug.cgi?id=60834) however the kernel
you were using included that fix. Hrm.
** Bug watch added: Linux Kernel Bug Tracker #60834
Looks like we have a bad src page when doing the memcpy():
memcpy:
48 89 f8mov%rdi,%rax
48 89 d1mov%rdx,%rcx
f3a4 rep movsb %ds:(%rsi),%es:(%rdi)
// e.g. rep on *rdi++ = *rsi++
c3
Assignee: Colin Ian King (colin-king)
Status: In Progress
** Changed in: linux (Ubuntu)
Status: New = In Progress
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** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
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SRU Justification:
[Impact]
Running standard btrfs tests will cause a machine to reboot.
[Fix]
commit 2c21b4d733d6e50514e30ffd87110364ddda695b
Btrfs: fix transaction abortion when remounting btrfs from RW to RO
[Testcase]
See attached hacked up bash script. Run with 7 devices for the btrfs
I believe the fix to this is upstream commit
00fdf13a2e9f313a044288aa59d3b8ec29ff904a
Author: Liu Bo bo.li@oracle.com
Date: Mon Mar 10 18:56:07 2014 +0800
Btrfs: fix a crash of clone with inline extents's split
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian
*** This bug is a duplicate of bug 1413129 ***
https://bugs.launchpad.net/bugs/1413129
** This bug has been marked a duplicate of bug 1413129
[trusty] btrfs: reboot/crash when running xfs btrfs tests 035
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)
Importance: High
Assignee: Colin Ian King (colin-king)
Status: In Progress
** Changed in: linux (Ubuntu)
Importance: Undecided = High
** Changed in: linux (Ubuntu)
Status: New = In Progress
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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verified with Linux ubuntu 3.13.0-46-generic #75-Ubuntu SMP Tue Feb 10
15:24:04 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux - passed - no crashes.
** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty
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Tested on Linux ubuntu 3.13.0-46-generic #75-Ubuntu SMP Tue Feb 10
15:24:04 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux, no crashes.
** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty
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** Changed in: linux (Ubuntu)
Status: Confirmed = In Progress
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Title:
evaluate the utility and overhead of CONFIG_
]; then
echo compress-force=zlib cleared in remount
exit 0
else
echo compress-force=zlib NOT cleared in remount
exit 1
fi
** Affects: linux (Ubuntu)
Importance: Low
Assignee: Colin Ian King (colin-king)
Status: In Progress
** Changed in: linux
** Summary changed:
- btrfs: ccompress-force needs clearing when remounting with compress option
+ btrfs: compress-force needs clearing when remounting with compress option
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-f /tmp/2.snap
The second receive (from an incremental send) failed with the following
error message: rename o261-7-0 - merlin/RC/OSD failed.
This is a regression introduced in the 3.16 kernel.
** Affects: linux (Ubuntu)
Importance: Low
Assignee: Colin Ian King (colin
not have this interface
supported and this fix is carried in vivid.
** Affects: linux (Ubuntu)
Importance: Low
Assignee: Colin Ian King (colin-king)
Status: In Progress
** Changed in: linux (Ubuntu)
Importance: Undecided = Low
** Changed in: linux (Ubuntu)
Status: New
17:12:47 +0800
Subject: [PATCH] btrfs: fix null pointer dereference in clone_fs_devices when
name is null
** Affects: linux (Ubuntu)
Importance: High
Assignee: Colin Ian King (colin-king)
Status: In Progress
** Changed in: linux (Ubuntu)
Status: New = In Progress
SRU Justification:
[Impact]
Running a btrfs test I trip a NULL pointer dereference
[Fix]
clean upstream cherry pick 755f780865221252ef3321215c9796b78e7b1c5 (btrfs: fix
null pointer dereference in clone_fs_devices when name is null)
[Testcase]
See attached hacked up bash script.btrfs: Without
Fix tested on utopic, $ uname -a
Linux ubuntu 3.16.0-34-generic #45-Ubuntu SMP Mon Mar 23 17:21:27 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
Works fine with the proposed kernel.
** Tags removed: verification-needed-utopic
** Tags added: verification-done-utopic
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Fix tested on trusty,
Linux ubuntu 3.13.0-49-generic #81-Ubuntu SMP Tue Mar 24 19:29:48 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
Works fine with the -proposed kernel
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Fix tested on trusty, $ uname -a
Linux ubuntu 3.16.0-34-generic #45~14.04.1-Ubuntu SMP Tue Mar 24 11:14:29 UTC
2015 x86_64 x86_64 x86_64 GNU/Linux
Works fine with the -proposed kernel
** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty
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Tested and works OK with -proposed kernel:
uname -a
Linux ubuntu 3.16.0-34-generic #45-Ubuntu SMP Mon Mar 23 17:21:27 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
** Tags removed: verification-needed-utopic
** Tags added: verification-done-utopic
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Fix tested, $ uname -a
Linux ubuntu 3.16.0-34-generic #45-Ubuntu SMP Mon Mar 23 17:21:27 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
Works fine with the proposed kernel.
** Tags removed: verification-needed-utopic
** Tags added: verification-done-utopic
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uname -a
Linux ubuntu 3.13.0-49-generic #81-Ubuntu SMP Tue Mar 24 19:29:48 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
Verified with -proposed kernel.
** Tags removed: verification-needed-trusty
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verified on -proposed kernel, I don't see the issue
Linux ubuntu 3.13.0-49-generic #81-Ubuntu SMP Tue Mar 24 19:29:48 UTC
2015 x86_64 x86_64 x86_64 GNU/Linux
** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty
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@Tim, I believe the improvements to passive thermal controls in the
Vivid kernel mean that the relaxation of the Recommends means that it
is not really required to be installed by default, so I'm relatively
relaxed about the current defaults wrt to thermald
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While commit 298a8f9cf17d2f2e1ffc41e5e247fa3695a8a76f avoids this crash,
I'm now getting further issues with the test failing. Need to bisect on
this more.
[PATCH] Btrfs: fix NULL pointer crash when running balance and scrub
concurrently
While running balance, scrub, fsstress concurrently we
Public bug reported:
Running xfs btrfs specific tests 061 with various mount options with 7
target btrfs devices causes the kernel to crash when running inside a
virtual machine.
** Affects: linux (Ubuntu)
Importance: Medium
Assignee: Colin Ian King (colin-king)
Status
: Colin Ian King (colin-king)
Status: In Progress
** Changed in: linux (Ubuntu)
Status: New = In Progress
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
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Ian King (colin-king)
Status: In Progress
** Changed in: linux (Ubuntu)
Status: New = In Progress
** Changed in: linux (Ubuntu)
Importance: Undecided = Low
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
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I personally do not recommend a BIOS upgrade for this kind of bug. It
is risky and won't add much value.
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https://bugs.launchpad.net/bugs/1445775
Title:
RTL8723BE throws
** Changed in: linux (Ubuntu)
Status: In Progress = Fix Released
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Title:
btrfs: regression in 3.16 with renaming of
PCC (Platform Communication Channel) is a recent ACPI 5.0 addition. The
driver does not find a PCC communications mailbox and just exits with
that error message. It is not something to worry about, most machines
don't have an ACPI PCCT table and they don't use this mechanism.
References:
ACPI
Looking at the driver and where it is occurring suggests to me that the
driver is not the root cause, it is probably somewhere else. The
message is the last one that you see and hence it is easy to mistake
that at the reason for failure.
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I believe the fix landed in 3.14, namely Btrfs: don't use ram_bytes for
uncompressed inline items and I think this fixes the issue on disc, so
that if you reverted back to 3.13 you would no longer see the bug.
Because we can't test this now I'm not sure how to proceed.
From what I understand
The above patch won't backport to 3.16, also I can't reproduce the issue
on 3.16, but can with 3.18 w/o the above fix.
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Title:
I believe this was fixed with the following upstream commit. This now
in vivid.
commit 3d84be799194147e04c0e3129ed44a948773b80a
Author: Forrest Liu forre...@synology.com
Date: Wed Feb 11 14:24:12 2015 +0800
Btrfs: fix BUG_ON in btrfs_orphan_add() when delete unused block
group
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** Changed in: linux (Ubuntu)
Status: Confirmed = In Progress
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
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Chris, I believe that vivid now has the fix you require, so are you OK
with closing this bug now?
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Title:
Kernel BUG shortly after
Can you try the latest 4.0-rc7 kernel to see if this fixes it?
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-rc7-vivid/
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Title:
George, I downloaded
http://c2154.eu01.webzillafiles.com/btrfs/btrfs_image.xz and
uncompressed it, but can't figure out how you mounted it - it just
appears as raw data and I can't determine where the btrfs file system is
on that image. Any clues?
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That makes sense, I couldn't find any superblock IDs on the data using
'grep _BHRfS_M test'
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Title:
Problems with transid in btrfs
** Bug watch added: Linux Kernel Bug Tracker #96251
http://bugzilla.kernel.org/show_bug.cgi?id=96251
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=96251
Importance: Unknown
Status: Unknown
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I've restored that data and tries to mount it with today's latest
4.0-rc7 kernel and I still hit the transid verify failed errors, so I
can't get the image mounted even with the latest kernel.
I think it is a little disingenuous for the bug to be marked as won't
fix on the bugzilla because of the
-proliant kernel: [150297.922616]
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: dann frazier (dannf)
Status: New
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
** Changed in: linux (Ubuntu)
Assignee: Colin Ian King
** Summary changed:
- HP ProLiant m400 Server
+ HP ProLiant m400 Server crashes with unhandled level 3 translation fault
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https://bugs.launchpad.net/bugs/1469214
Title:
Public bug reported:
While running stress-ng on a ProLiant m400 Server I managed to cause the
disk controller to timeout which causes a file system hang. I am
wondering if the timeout was causes because I completely overloaded the
system causing it to be slow on ata handling times.
I ran:
The error message is turned into a pr_debug debug message with this
commit:
commit efd756daf4ddae3cec2404c4e0b680b7cfdd6a45
Author: Rafael J. Wysocki rafael.j.wyso...@intel.com
Date: Thu Feb 5 00:40:08 2015 +0100
ACPI / PCC: Use pr_debug() for debug messages in pcc_init()
I suggest trying thermald to see if this helps
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https://bugs.launchpad.net/bugs/1460399
Title:
ivybridge system gets completely unusable after upgrade to vivid
thanks to
I was able to hit the following translation fault running sudo ./stress-
ng --seq 0 -t 60 --syslog --metrics --times -v
[90103.913447] irqbalance[807]: unhandled level 2 translation fault (11) at
0x001754a4, esr 0x9206
[90103.913454] pgd = ffcfb5926000
[90103.954271] [001754a4]
Running the following:
#!/bin/bash
tests=affinity aio bigheap brk bsearch cache chdir chmod clock context cpu
crypt dentry dir dup epoll eventfd fstat fallocate fault fifo flock fork futex
get getrandom hdd hsearch inotify io itimer kcmp kill lease link lockf longjmp
lsearch malloc matrix
Just a thought, it may be worth installing thermald to see if this
helps.
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Title:
fan only works when my acer 5315 is booted then
thermald does also try to ensure the machine does not overheat via
passive cooling too (e.g. cpu freq scaling etc), so I thought it may be
useful to avoid the power-off overheating scenario.
It may be that once the kernel has booted it indicates to the firmware
that the system is under ACPI
Hrm, OK, I'll see if I can find a better reproducer.
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Title:
HP ProLiant m400 Server crashes with unhandled level 3 translation
I re-ran this today with the following script as a non-root user:
#!/bin/bash
tests=affinity aio bigheap brk bsearch cache chdir chmod clock context cpu
crypt dentry dir dup epoll eventfd fstat fallocate fault fifo flock fork futex
get getrandom hdd hsearch inotify io itimer kcmp kill lease
captured irqbalance segfaulting:
Program received signal SIGSEGV, Segmentation fault.
0x00408f8c in place_irq_in_node (info=0x2c3d0050, data=0x0) at
placement.c:145
145 if (irq_numa_node(info)-number != -1) {
(gdb) where
#0 0x00408f8c in place_irq_in_node
Thanks Ming for finding the fix. I was going to do a bisect on the
upstream code but ran out of time last night. Nice find!
Colin
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** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Released
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https://bugs.launchpad.net/bugs/1389062
Title:
Failed to spawn thermald main process
Status in
** Changed in: linux (Ubuntu)
Status: Incomplete = Won't Fix
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https://bugs.launchpad.net/bugs/1053897
Title:
kernel does not boot without noefi on commandline
Hi Hanno,
So, it is most probable that an external general purpose event (GPE) on
a pin is causing an ACPI interrupt that services these specific events.
Your firmware contains some ACPI AML code that the kernel ACPI driver
executes every time that event gets serviced and this AML code performs
Installing perf and running perf-top may show us where abouts all the
CPU is being consumed.
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Colin Ian King (colin-king)
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So, there is a 500 ms poll on _PS0, polling on the state of \_SBI.INF
which I believe is a Systems Management Interface (SMI) state field:
Name (FWSO, FWSO)
Name (_PSC, 0x00) // _PSC: Power State Current
Method (_PS0, 0, NotSerialized) // _PS0: Power State 0
{
Store
Commit a87938b2e was included in 3.19.0-20.20 (see commit
b51621abbcb4694b8d2842ce3a66006a60bba6e5), so perhaps trying this would
be the first step to see if that commit fixes things. As it stands,
I've checked the heap and stack on a VM image using this kernel and
there is now plenty of space
** Changed in: linux (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1413969
Title:
evaluate the utility and overhead of CONFIG_
The crash in comment #21 shows it is triggered by a read by thermald.
To factor this out of the issue, can you temporarily disable thermald
using:
sudo systemctl disable thermald
I doubt this is the root cause, but at least it factors out the crash
you are seeing in comment #21 until we can
** Description changed:
+ (updated now from a FFe to a SRU for Wily)
+ SRU request, Wily.
+
+ [IMPACT]
+ Without this, we can have incorrect ordering which causes DKMS build failures
for multiple kernel module projects, such as ZFS (where ZFS requires the ZFS
support module spl to be built
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1509839
Title:
segfault on start of live session in kactivitymanager
>From the syslog in comment #2,
Suspend blocking wakelocks:
None
Resume wakeup causes:
EINT, 553 97.88%
CLDMA_MD6 1.06%
CLDMA_MD, 6 1.06%
Suspend failure causes:
tasks freezer abort
Arges, diff:
https://launchpadlibrarian.net/225690390/dkms_2.2.0.3-2ubuntu6_2.2.0.3-2ubuntu7.diff.gz
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Packages, which is subscribed to dkms in Ubuntu.
https://bugs.launchpad.net/bugs/1491729
Title:
dkms: add module build
Tested dkms-2.2.0.3-2ubuntu6.1 from -proposed: iterated on clean
install, install dkms, install zfs with no build ordering issues. Repeat
tested this 14 times, no problems now observed.
** Tags removed: verification-needed
** Tags added: verification-done
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Thanks Martin!
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https://bugs.launchpad.net/bugs/1491729
Title:
dkms: add module build ordering for ZFS on Linux
Status in dkms package in Ubuntu:
Fix Released
Status in
Martin, I've re-worked the patches, new dkms in https://launchpad.net
/~colin-king/+archive/ubuntu/zfs-dkms, the deb diff should be easier to
grok now.
I've not submitted these upstream yet.
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Additional change log info:
* Add POST_BUILD to the dkms_conf_variables list
The POST_BUILD directive is ignored by the read_conf() function
because it not in dkms_conf_variables list
* Add BUILD_DEPENDS configuration option
Implement a BUILD_DEPENDS directive that instructs `dkms
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