| 2018-06-14 10:37:08 |
Alan Jenkins |
bug |
|
|
added bug |
| 2018-06-14 10:37:08 |
Alan Jenkins |
attachment added |
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lspci-vnvn.log https://bugs.launchpad.net/bugs/1776887/+attachment/5152515/+files/lspci-vnvn.log |
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| 2018-06-14 10:39:56 |
Alan Jenkins |
attachment added |
|
A copy of the original patch that was merged upstream https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1776887/+attachment/5152516/+files/0001-block-do-not-use-interruptible-wait-anywhere.patch |
|
| 2018-06-14 11:00:06 |
Ubuntu Kernel Bot |
linux (Ubuntu): status |
New |
Incomplete |
|
| 2018-06-14 11:00:08 |
Ubuntu Kernel Bot |
tags |
|
bionic |
|
| 2018-06-14 12:21:51 |
Alan Jenkins |
linux (Ubuntu): status |
Incomplete |
Confirmed |
|
| 2018-06-14 12:25:51 |
Ubuntu Foundations Team Bug Bot |
tags |
bionic |
bionic patch |
|
| 2018-06-14 12:25:52 |
Ubuntu Foundations Team Bug Bot |
bug |
|
|
added subscriber Joseph Salisbury |
| 2018-06-14 14:41:42 |
Joseph Salisbury |
linux (Ubuntu): importance |
Undecided |
High |
|
| 2018-06-14 14:41:48 |
Joseph Salisbury |
nominated for series |
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Ubuntu Bionic |
|
| 2018-06-14 14:41:48 |
Joseph Salisbury |
bug task added |
|
linux (Ubuntu Bionic) |
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| 2018-06-14 14:41:52 |
Joseph Salisbury |
linux (Ubuntu Bionic): importance |
Undecided |
High |
|
| 2018-06-14 14:41:55 |
Joseph Salisbury |
linux (Ubuntu Bionic): status |
New |
Triaged |
|
| 2018-06-14 14:41:58 |
Joseph Salisbury |
linux (Ubuntu): status |
Confirmed |
Triaged |
|
| 2018-06-14 14:42:08 |
Joseph Salisbury |
linux (Ubuntu Bionic): assignee |
|
Joseph Salisbury (jsalisbury) |
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| 2018-06-14 14:42:10 |
Joseph Salisbury |
linux (Ubuntu): assignee |
|
Joseph Salisbury (jsalisbury) |
|
| 2018-06-14 16:13:33 |
Joseph Salisbury |
linux (Ubuntu Bionic): status |
Triaged |
In Progress |
|
| 2018-06-14 16:13:45 |
Joseph Salisbury |
linux (Ubuntu): status |
Triaged |
In Progress |
|
| 2018-06-15 04:01:19 |
penalvch |
tags |
bionic patch |
bionic cherry-pick kernel-fixed-upstream patch regression-release reverse-bisect-done |
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| 2018-06-15 04:02:22 |
penalvch |
bug |
|
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added subscriber Christopher M. Penalver |
| 2018-06-15 04:04:38 |
penalvch |
description |
This upstream bug has been confirmed to affect Ubuntu users[1]. As per the fix commit (below), the most frequent symptom is a crash of Xorg/Xwayland, i.e. killing the entire GUI, when a laptop is woken from system sleep. Frequency of the bug is described as once every few days[2].
[1] E.g. this user confirms the bug & very specific workaround: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1760450/comments/11
[2] E.g. this log of crashes: https://bugzilla.redhat.com/show_bug.cgi?id=1553979#c23
This is a bug in blk-core.c. It is not specific to any one hardware driver. Technically the suspend bug is triggered by the SCSI core - which is used by *all SATA devices*.
The commit also includes a test which quickly and reliably proves the existence of a horrifying bug.
I guess you might avoid this bug only if you have root on NVMe. The other way to not hit the Xorg crash is if you don't use all your RAM, so there's no pressure that leads to cold pages of Xorg being swapped. Also, you won't reproduce the Xorg crash if you suspend+resume immediately. (This frustrated my tests at one point, it only triggered after left the system suspended over lunch :).
Fix: "block: do not use interruptible wait anywhere"
in kernel 4.17: https://github.com/torvalds/linux/commit/1dc3039bc87ae7d19a990c3ee71cfd8a9068f428
in kernel 4.16.8: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-4.16.y&id=7859056bc73dea2c3714b00c83b253d4c22bf7b6
lack of fix in 4.15.0-24.26 (ubuntu 18.04): https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/bionic/tree/block/blk-core.c?id=Ubuntu-4.15.0-24.26#n856
I.e., this bug is still present in Ubuntu source package linux-4.15.0-24.26 (and 4.15.0-23.25). I attach hardware details (lspci-vnvn.log) of a system where this bug is known to happen.
Regards
Alan |
This upstream bug has been confirmed to affect Ubuntu users[1]. As per the fix commit (below), the most frequent symptom is a crash of Xorg/Xwayland, i.e. killing the entire GUI, when a laptop is woken from system sleep. Frequency of the bug is described as once every few days[2].
[1] E.g. this user confirms the bug & very specific workaround: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1760450/comments/11
[2] E.g. this log of crashes: https://bugzilla.redhat.com/show_bug.cgi?id=1553979#c23
This is a bug in blk-core.c. It is not specific to any one hardware driver. Technically the suspend bug is triggered by the SCSI core - which is used by *all SATA devices*.
The commit also includes a test which quickly and reliably proves the existence of a horrifying bug.
I guess you might avoid this bug only if you have root on NVMe. The other way to not hit the Xorg crash is if you don't use all your RAM, so there's no pressure that leads to cold pages of Xorg being swapped. Also, you won't reproduce the Xorg crash if you suspend+resume immediately. (This frustrated my tests at one point, it only triggered after left the system suspended over lunch :).
Fix: "block: do not use interruptible wait anywhere"
in kernel 4.17: https://github.com/torvalds/linux/commit/1dc3039bc87ae7d19a990c3ee71cfd8a9068f428
in kernel 4.16.8: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-4.16.y&id=7859056bc73dea2c3714b00c83b253d4c22bf7b6
lack of fix in 4.15.0-24.26 (ubuntu 18.04): https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/bionic/tree/block/blk-core.c?id=Ubuntu-4.15.0-24.26#n856
I.e., this bug is still present in Ubuntu source package linux-4.15.0-24.26 (and 4.15.0-23.25). I attach hardware details (lspci-vnvn.log) of a system where this bug is known to happen.
Regards
Alan
WORKAROUND: Use kernel parameter:
scsi_mod.scan=sync |
|
| 2018-06-29 13:39:12 |
Joseph Salisbury |
description |
This upstream bug has been confirmed to affect Ubuntu users[1]. As per the fix commit (below), the most frequent symptom is a crash of Xorg/Xwayland, i.e. killing the entire GUI, when a laptop is woken from system sleep. Frequency of the bug is described as once every few days[2].
[1] E.g. this user confirms the bug & very specific workaround: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1760450/comments/11
[2] E.g. this log of crashes: https://bugzilla.redhat.com/show_bug.cgi?id=1553979#c23
This is a bug in blk-core.c. It is not specific to any one hardware driver. Technically the suspend bug is triggered by the SCSI core - which is used by *all SATA devices*.
The commit also includes a test which quickly and reliably proves the existence of a horrifying bug.
I guess you might avoid this bug only if you have root on NVMe. The other way to not hit the Xorg crash is if you don't use all your RAM, so there's no pressure that leads to cold pages of Xorg being swapped. Also, you won't reproduce the Xorg crash if you suspend+resume immediately. (This frustrated my tests at one point, it only triggered after left the system suspended over lunch :).
Fix: "block: do not use interruptible wait anywhere"
in kernel 4.17: https://github.com/torvalds/linux/commit/1dc3039bc87ae7d19a990c3ee71cfd8a9068f428
in kernel 4.16.8: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-4.16.y&id=7859056bc73dea2c3714b00c83b253d4c22bf7b6
lack of fix in 4.15.0-24.26 (ubuntu 18.04): https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/bionic/tree/block/blk-core.c?id=Ubuntu-4.15.0-24.26#n856
I.e., this bug is still present in Ubuntu source package linux-4.15.0-24.26 (and 4.15.0-23.25). I attach hardware details (lspci-vnvn.log) of a system where this bug is known to happen.
Regards
Alan
WORKAROUND: Use kernel parameter:
scsi_mod.scan=sync |
== SRU Justification ==
This upstream bug has been confirmed to affect Ubuntu users[1]. As per the fix commit (below), the most frequent symptom is a crash of Xorg/Xwayland, i.e. killing the entire GUI, when a laptop is woken from system sleep. Frequency of the bug is described as once every few days[2].
[1] E.g. this user confirms the bug & very specific workaround: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1760450/comments/11
[2] E.g. this log of crashes: https://bugzilla.redhat.com/show_bug.cgi?id=1553979#c23
This is a bug in blk-core.c. It is not specific to any one hardware driver. Technically the suspend bug is triggered by the SCSI core - which is used by *all SATA devices*.
The commit also includes a test which quickly and reliably proves the existence of a horrifying bug.
I guess you might avoid this bug only if you have root on NVMe. The other way to not hit the Xorg crash is if you don't use all your RAM, so there's no pressure that leads to cold pages of Xorg being swapped. Also, you won't reproduce the Xorg crash if you suspend+resume immediately. (This frustrated my tests at one point, it only triggered after left the system suspended over lunch :).
Fix: "block: do not use interruptible wait anywhere"
in kernel 4.17: https://github.com/torvalds/linux/commit/1dc3039bc87ae7d19a990c3ee71cfd8a9068f428
in kernel 4.16.8: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-4.16.y&id=7859056bc73dea2c3714b00c83b253d4c22bf7b6
lack of fix in 4.15.0-24.26 (ubuntu 18.04): https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/bionic/tree/block/blk-core.c?id=Ubuntu-4.15.0-24.26#n856
I.e., this bug is still present in Ubuntu source package linux-4.15.0-24.26 (and 4.15.0-23.25). I attach hardware details (lspci-vnvn.log) of a system where this bug is known to happen.
Regards
Alan
WORKAROUND: Use kernel parameter:
scsi_mod.scan=sync
== Fix ==
1dc3039bc87a ("block: do not use interruptible wait anywhere")
== Regression Potential ==
Low. This patch has been sent to stable, so it has had additional
upstream review.
== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug. |
|
| 2018-07-02 13:11:02 |
Paulo Marcel Coelho Aragão |
bug |
|
|
added subscriber Paulo Marcel Coelho Aragão |
| 2018-07-05 13:05:30 |
DavidV |
bug |
|
|
added subscriber DavidV |
| 2018-07-08 09:18:48 |
Eugene Romanenko |
bug |
|
|
added subscriber Eugene Romanenko |
| 2018-07-08 13:30:54 |
masd2020 |
bug |
|
|
added subscriber masd2020 |
| 2018-07-17 14:57:16 |
Stefan Bader |
linux (Ubuntu Bionic): status |
In Progress |
Fix Committed |
|
| 2018-07-18 10:01:44 |
Brad Figg |
tags |
bionic cherry-pick kernel-fixed-upstream patch regression-release reverse-bisect-done |
bionic cherry-pick kernel-fixed-upstream patch regression-release reverse-bisect-done verification-needed-bionic |
|
| 2018-07-20 10:40:22 |
Kleber Sacilotto de Souza |
linux (Ubuntu Bionic): status |
Fix Committed |
In Progress |
|
| 2018-07-20 11:05:48 |
Kleber Sacilotto de Souza |
tags |
bionic cherry-pick kernel-fixed-upstream patch regression-release reverse-bisect-done verification-needed-bionic |
bionic cherry-pick kernel-fixed-upstream patch regression-release reverse-bisect-done |
|
| 2018-07-20 15:39:45 |
Launchpad Janitor |
linux (Ubuntu Bionic): status |
In Progress |
Fix Released |
|
| 2018-07-21 18:39:05 |
penalvch |
linux (Ubuntu Bionic): status |
Fix Released |
In Progress |
|
| 2018-07-26 05:13:52 |
Launchpad Janitor |
linux (Ubuntu): status |
In Progress |
Fix Released |
|
| 2018-07-26 07:09:43 |
penalvch |
linux (Ubuntu): status |
Fix Released |
In Progress |
|
| 2018-08-08 19:19:41 |
Joseph Salisbury |
linux (Ubuntu Bionic): status |
In Progress |
Fix Committed |
|
| 2018-08-08 19:19:44 |
Joseph Salisbury |
linux (Ubuntu): status |
In Progress |
Fix Committed |
|
| 2018-08-10 03:16:13 |
Ryan C. Underwood |
bug |
|
|
added subscriber Ryan C. Underwood |
| 2018-09-05 17:22:14 |
Luca Capasso |
linux (Ubuntu): status |
Fix Committed |
Confirmed |
|
| 2018-09-06 05:32:03 |
penalvch |
linux (Ubuntu): status |
Confirmed |
Triaged |
|
| 2018-11-06 13:00:27 |
Meike Hecker |
bug |
|
|
added subscriber Meike Hecker |
| 2019-07-24 21:05:31 |
Brad Figg |
tags |
bionic cherry-pick kernel-fixed-upstream patch regression-release reverse-bisect-done |
bionic cherry-pick cscc kernel-fixed-upstream patch regression-release reverse-bisect-done |
|
| 2019-07-25 00:22:13 |
Ubuntu Foundations Team Bug Bot |
bug |
|
|
added subscriber Terry Rudd |
| 2019-11-01 12:41:38 |
Julien Olivier |
bug |
|
|
added subscriber Julien Olivier |
