Public bug reported:
[impact]
Documentation, and past behavior, for kdump-tools was that the
KDUMP_SYSCTL variable in the /etc/default/kdump-tools file would be
applied to the system kernel params at kdump 'load'. However this is no
longer true, and those params are no longer applied to the system's
kernel param settings.
[test case]
install linux-crashdump (and kdump-tools).
Edit the /etc/default/kdump-tools file to set the KDUMP_SYSCTL param to
something other than default, e.g.:
KDUMP_SYSCTL="kernel.panic_on_oops=1 kernel.panic_on_warn=1"
reboot, or unload/reload kdump, to pick up the changes to the file.
Check if the panic_on_warn param is set:
$ cat /proc/sys/kernel/panic_on_warn
0
the problem does not seem to be with sysctl, as manually calling it does
work:
$ KDUMP_SYSCTL="kernel.panic_on_oops=1 kernel.panic_on_warn=1"
$ cat /proc/sys/kernel/panic_on_warn
0
$ sudo sysctl -w $KDUMP_SYSCTL
kernel.panic_on_oops = 1
kernel.panic_on_warn = 1
$ cat /proc/sys/kernel/panic_on_warn
1
[regression potential]
TBD
** Affects: makedumpfile (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1845048
Title:
/etc/default/kdump-tools KDUMP_SYSCTL does not set sysctl params
Status in makedumpfile package in Ubuntu:
New
Bug description:
[impact]
Documentation, and past behavior, for kdump-tools was that the
KDUMP_SYSCTL variable in the /etc/default/kdump-tools file would be
applied to the system kernel params at kdump 'load'. However this is
no longer true, and those params are no longer applied to the system's
kernel param settings.
[test case]
install linux-crashdump (and kdump-tools).
Edit the /etc/default/kdump-tools file to set the KDUMP_SYSCTL param
to something other than default, e.g.:
KDUMP_SYSCTL="kernel.panic_on_oops=1 kernel.panic_on_warn=1"
reboot, or unload/reload kdump, to pick up the changes to the file.
Check if the panic_on_warn param is set:
$ cat /proc/sys/kernel/panic_on_warn
0
the problem does not seem to be with sysctl, as manually calling it
does work:
$ KDUMP_SYSCTL="kernel.panic_on_oops=1 kernel.panic_on_warn=1"
$ cat /proc/sys/kernel/panic_on_warn
0
$ sudo sysctl -w $KDUMP_SYSCTL
kernel.panic_on_oops = 1
kernel.panic_on_warn = 1
$ cat /proc/sys/kernel/panic_on_warn
1
[regression potential]
TBD
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1845048/+subscriptions
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