On 09/07/24 at 10:30am, Sourabh Jain wrote:
> Hello Baoquan,
>
> Do you think this patch would help reduce lock contention when
> CPU/Memory resources are removed in bulk from a system?
.snip...
--
> > include/linux/kexec.h | 11 ---
> > kernel/crash_core.c | 27 +-
Hello Baoquan,
Do you think this patch would help reduce lock contention when
CPU/Memory resources are removed in bulk from a system?
Thanks,
Sourabh Jain
On 23/08/24 17:22, Sourabh Jain wrote:
On a CPU/Memory hotplug event, the kexec lock is taken to update the
kdump image. At the same time
On a CPU/Memory hotplug event, the kexec lock is taken to update the
kdump image. At the same time, this lock is also required to report
the support for crash hotplug to user-space via the
/sys/devices/system/[cpu|memory]/crash_hotplug sysfs interface, to
avoid kdump reload.
The kexec lock is need
