In kernel, with the support of cpu/memory hotplug on crash, kdump reloading only needs to update the elfcorehdr.
To realize the benefits, we need prevent udev from updating kdump kernel on hot un/plug changes when detecting that the crash_hotplug sysfs nodes are present.
In kernel, with the support of cpu/memory hotplug on crash, kdump reloading only needs to update the elfcorehdr.
To realize the benefits, we need prevent udev from updating kdump kernel on hot un/plug changes when detecting that the crash_hotplug sysfs nodes are present.
Link: https://lore.kernel.org/lkml/20230814214446.6659-1-eric.devolder@oracle.com/ Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d68b4b6f307d155475cce541f2aee938032ed22e