[PATCH] arm64/crashdump-arm64: increase CRASH_MAX_MEMORY_RANGES to 32k

[Mohamed Abuelfotoh, Hazem <abuehaze@amazon.com>]

Thanks Simon & Baoquan.

Hazem

?On 29/04/2022, 11:59, "Simon Horman" <horms@kernel.org> wrote:

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    On Tue, Apr 26, 2022 at 08:14:15AM +0800, Baoquan He wrote:
    > On 04/19/22 at 05:23pm, abuehaze14 wrote:
    > > On ARM64 based VMs hotplugging more than 31GB of memory will cause
    > > kdump to fail loading as it's hitting the CRASH_MAX_MEMORY_RANGES
    > > limit which is currently 32 on ARM64 given that the  memory block size
    > > is 1GB. This patch is raising CRASH_MAX_MEMORY_RANGES
    > > to 32K similar to what we have on x86, this should allow
    > > kdump to work until the VM has 32TB which should be
    > > enough for a long time.
    > >
    > > Signed-off-by: Hazem Mohamed Abuelfotoh <abuehaze@amazon.com>
    >
    > Sounds reasonable.
    >
    > Acked-by: Baoquan He <bhe@redhat.com>
    >
    > By the way, Simon usually collects kexec-tools patches every one to two
    > weeks, no need to always ping in a short time.

    Thanks and sorry for the delay.

    I have applied this patch to main.