[Crash-utility] [PATCH 0/1] arm64: Fix missing offset for modules_vaddr with aarch64 guest dump

[Masayoshi Mizuma]

From: Masayoshi Mizuma <m.mizuma at jp.fujitsu.com>

Fix for aarch64 with Linux v5.0 and later kernels that
contains commit 91fc957c9b1d ("arm64/bpf: don't allocate
BPF JIT programs in module memory") and the memory dump
is captured by virsh dump.

Note: Another two issues remain for the memory dump captured by
virsh dump with aarch64.

1. KASLR
   crash doesn't work in case KASLR is enabled on the guest.
   That is because the memory dump doesn't have vmcoreinfo, so we
   cannot get the relocation position.
   I suppose we need to implement calc_kaslr_offset() for aarch64.
   nokaslr with the guest kernel parameter is a workaround.

2. VA_BITS
   crash doesn't work in case the guest kernel is v5.4 and later.
   That is because the memory dump doesn't have vmcoreinfo, so we
   cannot get vabits_actual.
   I think there's no workaround so far...

Masayoshi Mizuma (1):
  arm64: Fix missing offset for modules_vaddr with aarch64 guest dump

 arm64.c | 2 ++
 defs.h  | 3 +++
 2 files changed, 5 insertions(+)

-- 
2.18.1