Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Cirrus: Workaround F32 BFQ Kernel bug #8188

Merged
merged 1 commit into from
Oct 30, 2020
Merged

Cirrus: Workaround F32 BFQ Kernel bug #8188

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 10 additions & 0 deletions contrib/cirrus/setup_environment.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,16 @@ case "$CG_FS_TYPE" in
*) die_unknown CG_FS_TYPE
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.
case "$OS_RELEASE_ID" in
ubuntu*) ;;
Expand Down