** Tags removed: sts-sponsor
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https://bugs.launchpad.net/bugs/1640382
Title:
Segfault event notifier because of race condition
To manage notifications about this bug go to:
** Tags removed: sts-sru
** Tags added: sts-sru-done
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Title:
Segfault event notifier because of race condition
To manage notifications about
This bug was fixed in the package qemu - 2.0.0+dfsg-2ubuntu1.31
---
qemu (2.0.0+dfsg-2ubuntu1.31) trusty; urgency=medium
* aio: fix qemu_bh_schedule() bh->ctx race condition (LP: #1640382)
- d/p/0001-aio-fix-qemu_bh_schedule-bh-ctx-race-condition.patch
* aio: strengthen
** Also affects: cloud-archive/icehouse
Importance: Undecided
Status: New
** Changed in: cloud-archive
Status: Confirmed => Invalid
** Changed in: cloud-archive/icehouse
Status: New => Fix Committed
** Changed in: cloud-archive/icehouse
Importance: Undecided => Medium
** Also affects: cloud-archive/icehouse
Importance: Undecided
Status: New
** Changed in: cloud-archive
Status: Confirmed => Invalid
** Changed in: cloud-archive/icehouse
Status: New => Fix Committed
** Changed in: cloud-archive/icehouse
Importance: Undecided => Medium
ii qemu 2.0.0+dfsg-2ubuntu1.31
amd64fast processor emulator
ii qemu-keymaps 2.0.0+dfsg-2ubuntu1.31
all QEMU keyboard maps
ii qemu-system 2.0.0+dfsg-2ubuntu1.31
Hello Seyeong, or anyone else affected,
Accepted qemu into trusty-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/qemu/2.0.0+dfsg-
2ubuntu1.31 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See
Unsubscribed ~ubuntu-sponsors.
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Title:
Segfault event notifier because of race condition
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** Patch added: "Icehouse_memory_barrier.debdiff"
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1640382/+attachment/4786133/+files/Icehouse_memory_barrier.debdiff
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** Patch removed: "Trusty_aio_fix_qemu_bh_schedule_race_condition.debdiff"
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1640382/+attachment/4775668/+files/Trusty_aio_fix_qemu_bh_schedule_race_condition.debdiff
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Rejected from the Trusty queue as requested. I don't see another upload
to replace it though. Note for the future: you don't need to wait for a
rejection before uploading a replacement; just make it clear to the SRU
team which needs to be rejected and which you need to keep. See
oh and uca kilo has fixes.
uca icehouse needs this
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Title:
Segfault event notifier because of race condition
To manage notifications about
Per discussion with Seyeong Kim this should also apply to Ubuntu Cloud Archive
Kilo.
This has the first but lacks the second fix.
He can work that out with the UCA Team.
** Also affects: cloud-archive
Importance: Undecided
Status: New
** Changed in: cloud-archive
Status: New =>
Hello seb128
I asked SRU only one commit at first,
but I found this raises bug 1587039(after browsing this symptom), then
now I'm asking to sponsor or sru new debdiff.
the patch in the queue needs to be NAck and be changed to latest one if
is ok.
I asked cpaelzer guide this and he commented to
seems there is already an upload in the SRU queue waiting for review
https://launchpad.net/ubuntu/trusty/+queue?queue_state=1_text=qemu
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Title:
It seems that [1] commit introduces [2] ( which is happened in 2.1 as
amad ali said )
and patch [3] is fixing [2]
I think this needs combinded patch but not sure.
[1]
http://git.qemu.org/?p=qemu.git;a=commit;h=924fe1293c3e7a3c787bbdfb351e7f168caee3e9
[2]
** Patch added: "Trusty_memory_barrier.debdiff"
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1640382/+attachment/4781413/+files/Trusty_memory_barrier.debdiff
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Hey Brian
I couldn't find any similar bug on erros.ubuntu.com
but I found LP bug which forwarded 1 step then this.
https://bugs.launchpad.net/cloud-archive/+bug/1587039
does it worth testing above LP bug for this issue as well? ( or mark
duplicate after testing )
Need advice
Thanks a lot
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Given that there is no test case in the description, an alternative way
to verify the fix would be to find an crash report in the Error Tracker
matching the same race condition and watching to ensure that the new
package version does not appear in the bucket for that crash. Could you
review
** Changed in: qemu (Ubuntu)
Status: Invalid => Fix Released
** Changed in: qemu (Ubuntu)
Importance: Undecided => Medium
** Changed in: qemu (Ubuntu Trusty)
Importance: Undecided => Medium
** No longer affects: qemu (Ubuntu Xenial)
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rebased and reuploaded
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Title:
Segfault event notifier because of race condition
To manage notifications about this bug go to:
** Patch removed: "Trusty_aio_fix_qemu_bh_schedule_race_condition.debdiff"
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1640382/+attachment/4774780/+files/Trusty_aio_fix_qemu_bh_schedule_race_condition.debdiff
** Patch added: "Trusty_aio_fix_qemu_bh_schedule_race_condition.debdiff"
** Tags added: sts-sponsor sts-sru
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Title:
Segfault event notifier because of race condition
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** Changed in: qemu (Ubuntu)
Status: New => Invalid
** Changed in: qemu (Ubuntu Xenial)
Status: New => Invalid
** Patch added: "Trusty_aio_fix_qemu_bh_schedule_race_condition.debdiff"
** Also affects: qemu (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: qemu (Ubuntu Trusty)
Importance: Undecided
Status: New
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** Changed in: qemu (Ubuntu Trusty)
Status: New => In Progress
** Changed in: qemu (Ubuntu Trusty)
Assignee: (unassigned) => Seyeong Kim (xtrusia)
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