On Wed, Feb 26, 2020 at 11:32:46PM +0530, Naresh Kamboju wrote:
Yeah i see this case at my end also.
my two cents, I have two comments,
- shell check
I'll fix these up; thanks for the suggestions!
Test output with set -x for debugging shell scripts. [...] ++ dmesg -c +++ mktemp --tmpdir -t lkdtm-XXXXXX ++ LOG=/tmp/lkdtm-r5yZ7K ++ trap cleanup EXIT ++ /bin/sh -c 'cat <(echo BUG) >/sys/kernel/debug/provoke-crash/DIRECT' ++ true ++ dmesg -c ++ cat /tmp/lkdtm-r5yZ7K
This is the part that is failing and I don't know why.
clear the kernel event log: dmesg -c trigger the kernel event: /bin/sh -c 'cat <(echo BUG) >/sys/kernel/debug/provoke-crash/DIRECT' dump the newly added event logs into a file (set -x doesn't report redirection to /tmp/lkdtm-r5yZ7K): dmesg -c
It seems /tmp/lkdtm-r5yZ7K is empty?