kdump operates by booting a fresh kernel to capture the context of a
crashed kernel, and so the only way for kdump to dump a kernel is to
crash it and cause kdump to invoke its post-crash kernel.
You can manually force a running kernel to panic (and invoke a
correctly-configured kdump) with the following command sequence:
echo 1 > /proc/sys/kernel/sysrq
echo c > /proc/sysrq-trigger
Cheers,
Ben
On 3/25/19 7:19 PM, wuzhouhui wrote:
Hi,
Is there a way to specify kernel version when (re)start kdump
service? Suppose I have install a new kernel and kdump will
generate kdump.img for new kernel in next boot. But I want kdump
to generate kdump.img for new kernel immediately, is it possible?
Thanks.
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--
Benjamin Hauger
SysAdmin/CSDC-DMO
Rm. 94
x8371
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