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Cirrus: Workaround F32 BFQ Kernel bug

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Signed-off-by: Chris Evich <cevich@redhat.com>
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Chris Evich
2020-10-29 14:21:04 -04:00
parent 222d8075ab
commit 0ebee0ce8e
1 changed files with 10 additions and 0 deletions
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10
contrib/cirrus/setup_environment.sh
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@ -85,6 +85,16 @@ case "$CG_FS_TYPE" in
*) die_unknown CG_FS_TYPE *) die_unknown CG_FS_TYPE
esac esac
if ((CONTAINER==0)); then # Not yet running inside a container
# Discovered reemergence of BFQ scheduler bug in kernel 5.8.12-200
# which causes a kernel panic when system is under heavy I/O load.
# Previously discovered in F32beta and confirmed fixed. It's been
# observed in F31 kernels as well. Deploy workaround for all VMs
# to ensure a more stable I/O scheduler (elevator).
echo "mq-deadline" > /sys/block/sda/queue/scheduler
warn "I/O scheduler: $(cat /sys/block/sda/queue/scheduler)"
fi
# Which distribution are we testing on. # Which distribution are we testing on.
case "$OS_RELEASE_ID" in case "$OS_RELEASE_ID" in
ubuntu*) ;; ubuntu*) ;;