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@xxxxxxxxxx> --- kexec/arch/arm64/crashdump-arm64.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kexec/arch/arm64/crashdump-arm64.h b/kexec/arch/arm64/crashdump-arm64.h index 12f4308..82fa69b 100644 --- a/kexec/arch/arm64/crashdump-arm64.h +++ b/kexec/arch/arm64/crashdump-arm64.h @@ -14,7 +14,7 @@ #include "kexec.h" -#define CRASH_MAX_MEMORY_RANGES 32 +#define CRASH_MAX_MEMORY_RANGES 32768 /* crash dump kernel support at most two regions, low_region and high region. */ #define CRASH_MAX_RESERVED_RANGES 2 -- 2.32.0 _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
