[Crash-utility] s390x MAX_PHYSMEM_BITS
Hi Mahesh and Michael,
Re: this post from the kexec mailing list:
Subject: [PATCH] makedumpfile: s390x: Auto-detect the correct
MAX_PHYSMEM_BITS used in vmcore being analyzed.
From: Mahesh Salgaonkar <mahesh(a)linux.vnet.ibm.com>
So far s390x kernel was using 42 bits for MAX_PHYSMEM_BITS that use to
support maximum of 4TB of memory. In order to support bigger systems,
the newer s390x kernel will now use 46 bits for MAX_PHYSMEM_BITS to support
maximum of 64TB of memory.
This patch auto-detects the correct value to use for MAX_PHYSMEM_BITS by
examining the mem_section array size from the vmcore being analyzed.
Signed-off-by: Mahesh Salgaonkar <mahesh(a)linux.vnet.ibm.com>
---
Can you guys post an s390x crash utility patch to properly select the
correct MAX_PHYSMEM_BITS value to store in machdep->max_physmem_bits?
Thanks,
Dave