** Also affects: makedumpfile (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: makedumpfile (Ubuntu Xenial)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1811692
Title:
udev coldplug will interrupt makedumpfile
Status in makedumpfile package in Ubuntu:
Fix Released
Status in makedumpfile source package in Xenial:
In Progress
Status in makedumpfile source package in Bionic:
Fix Released
Status in makedumpfile source package in Cosmic:
Fix Released
Status in makedumpfile source package in Disco:
Fix Released
Bug description:
[Impact]
During kdump on i386 systems, udev will restart kdump-tools, which will kill
makedumpfile during dump capture, causing the system to reboot without
capturing a dump.
[Test case]
After the fix, a dump could be captured on i386. Other arches were tested and
worked just as fine.
[Regression potential]
Systems could fail to have a dump captured, but it was tested to not be the
case.
===============
After introducing the udev rules to restart kdump-tools service when
there is memory or cpu hotplug, it will be restarted during coldplug
as well. This will cause the dump capture itself to be interrupted
after a crash. When it is restarted and tries to dump again, it will
find an existing dump file and will fail to dump.
My proposed solution is to use a different systemd service for the
real capture.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1811692/+subscriptions
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