Message ID | 170250687380.1363584.4078567385149829394.stgit@frogsfrogsfrogs (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | fstests: random fixes for v2023.12.10 | expand |
On Wed, Dec 13, 2023 at 02:34:33PM -0800, Darrick J. Wong wrote: > From: Darrick J. Wong <djwong@kernel.org> > > On 6.7-rc2, I've noticed that this test hangs unpredictably because the > stat loop fails to exit. While the kill $loop_pid command /should/ take > care of it, it clearly isn't. > > Set up an additional safety factor by checking for the existence of a > sentinel flag before starting the loop body. In bash, "[" is a builtin > so the loop should run almost as tightly as it did before. Loks good: Reviewed-by: Christoph Hellwig <hch@lst.de>
diff --git a/tests/generic/615 b/tests/generic/615 index 4979306d56..9411229874 100755 --- a/tests/generic/615 +++ b/tests/generic/615 @@ -21,11 +21,10 @@ _require_odirect stat_loop() { - trap "wait; exit" SIGTERM local filepath=$1 local blocks - while :; do + while [ -e "$loop_file" ]; do blocks=$(stat -c %b $filepath) if [ $blocks -eq 0 ]; then echo "error: stat(2) reported zero blocks" @@ -39,6 +38,8 @@ _scratch_mount $XFS_IO_PROG -f -s -c "pwrite -b 64K 0 64K" $SCRATCH_MNT/foo > /dev/null +loop_file=$tmp.loopfile +touch $loop_file stat_loop $SCRATCH_MNT/foo & loop_pid=$! @@ -64,6 +65,7 @@ for ((i = 0; i < 2000; i++)); do $XFS_IO_PROG -d -c "pwrite -b 64K 0 64K" $SCRATCH_MNT/foo > /dev/null done +rm -f $loop_file kill $loop_pid &> /dev/null wait