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kdump.sysconfig: append "panic=10" to kdump cmdline

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When doing kdump If the capture kernel crashes for some reason, the default
behavior appears to be hanging the system without rebooting.  We at least
need an option to reset if the capture kernel crashes.  Business critical
customers tend to want the system to reboot without manual intervention.

Kernel provides a parameter “panic=n” to solve such problem.  If this parameter
is given, the capture kernel will reboot after n seconds in case it panics.

Now add this parameter into “KDUMP_COMMANDLINE_APPEND”, and set the default
waiting time value as 10 seconds.

It's tested on KVM f19, and passed.

Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
root 2013-06-06 11:18:31 +08:00 committed by Baoquan He
parent 5d73c78c8b
commit 224b700c82
4 changed files with 4 additions and 4 deletions
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2
kdump.sysconfig.i386
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@ -16,7 +16,7 @@ KDUMP_COMMANDLINE=""
# This variable lets us append arguments to the current kdump commandline
# As taken from either KDUMP_COMMANDLINE above, or from /proc/cmdline
KDUMP_COMMANDLINE_APPEND="irqpoll nr_cpus=1 reset_devices numa=off udev.children-max=2 action_on_fail=continue"
KDUMP_COMMANDLINE_APPEND="irqpoll nr_cpus=1 reset_devices numa=off udev.children-max=2 action_on_fail=continue panic=10"
# Any additional kexec arguments required. In most situations, this should
# be left empty

2
kdump.sysconfig.ppc64
View File

@ -16,7 +16,7 @@ KDUMP_COMMANDLINE=""
# This variable lets us append arguments to the current kdump commandline
# As taken from either KDUMP_COMMANDLINE above, or from /proc/cmdline
KDUMP_COMMANDLINE_APPEND="irqpoll maxcpus=1 noirqdistrib reset_devices cgroup_disable=memory numa=off udev.children-max=2 ehea.use_mcs=0 action_on_fail=continue"
KDUMP_COMMANDLINE_APPEND="irqpoll maxcpus=1 noirqdistrib reset_devices cgroup_disable=memory numa=off udev.children-max=2 ehea.use_mcs=0 action_on_fail=continue panic=10"
# Any additional kexec arguments required. In most situations, this should
# be left empty

2
kdump.sysconfig.s390x
View File

@ -16,7 +16,7 @@ KDUMP_COMMANDLINE=""
# This variable lets us append arguments to the current kdump commandline
# As taken from either KDUMP_COMMANDLINE above, or from /proc/cmdline
KDUMP_COMMANDLINE_APPEND="maxcpus=1 cgroup_disable=memory numa=off udev.children-max=2 action_on_fail=continue"
KDUMP_COMMANDLINE_APPEND="maxcpus=1 cgroup_disable=memory numa=off udev.children-max=2 action_on_fail=continue panic=10"
# Any additional /sbin/mkdumprd arguments required.
MKDUMPRD_ARGS=""

2
kdump.sysconfig.x86_64
View File

@ -16,7 +16,7 @@ KDUMP_COMMANDLINE=""
# This variable lets us append arguments to the current kdump commandline
# As taken from either KDUMP_COMMANDLINE above, or from /proc/cmdline
KDUMP_COMMANDLINE_APPEND="irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off numa=off udev.children-max=2 action_on_fail=continue"
KDUMP_COMMANDLINE_APPEND="irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off numa=off udev.children-max=2 action_on_fail=continue panic=10"
# Any additional kexec arguments required. In most situations, this should
# be left empty