Hi Dave, hi co,
I noticed a behaviour change regarding System.map handling regarding
newer kernel like 4.14+
As a example:
below command works:
crash -d 1 vmlinux-4.14.43-1-pserver ps402a-30-dump.201806041421 > good.txt
below command report error:
crash -d 1 vmlinux-4.14.43-1-pserver System.map-4.14.43-1-pserver
ps402a-30-dump.201806041421 > bad.txt
crash: page excluded: kernel virtual address: ffffffff82237f18 type:
"page_offset_base"
When compare the difference between good.txt and bad.txt, I noticed
following only in good.txt:
KASLR:
_stext from vmlinux-4.14.43-1-pserver: ffffffff81000000
_stext from vmcoreinfo: ffffffff9e000000
relocate: 1d000000 (464MB)
I tried also on latest Ubuntu 1804, crash reports same error when run
with System.map file.
Is this expected?
Thanks,
--
Jack Wang
Linux Kernel Developer
ProfitBricks GmbH
Greifswalder Str. 207
D - 10405 Berlin
Tel: +49 30 577 008 042
Fax: +49 30 577 008 299
Email: jinpu.wang(a)profitbricks.com
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