| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # |
| # FS QA Test 738 |
| # |
| # Test possible deadlock of umount and reclaim memory |
| # when there are EOF blocks in files. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick freeze |
| |
| [ "$FSTYP" = "xfs" ] && _fixed_by_kernel_commit ab23a7768739 \ |
| "xfs: per-cpu deferred inode inactivation queues" |
| |
| _cleanup() |
| { |
| xfs_freeze -u $SCRATCH_MNT 2>/dev/null |
| wait |
| cd / |
| rm -r -f $tmp.* |
| } |
| |
| _require_scratch |
| _require_freeze |
| |
| _scratch_mkfs >> $seqres.full |
| _scratch_mount |
| |
| create_eof_block_file() |
| { |
| # Create several EOF blocks in the new file |
| for j in $(seq 1 5); do |
| cat $SCRATCH_MNT/testfile >> $1 |
| done |
| } |
| |
| $XFS_IO_PROG -fc "pwrite 0 64k" $SCRATCH_MNT/testfile >> $seqres.full |
| # Create enough files to make sure there is enough cache |
| for i in $(seq 0 1024); do |
| create_eof_block_file $SCRATCH_MNT/$i |
| done |
| _scratch_sync |
| xfs_freeze -f $SCRATCH_MNT |
| |
| # This will hang if bug reproduces |
| echo 3 > /proc/sys/vm/drop_caches & |
| |
| # Wait a while before exiting and unfreezing. |
| sleep 3 |
| |
| # success, all done |
| echo "Silence is golden" |
| status=0 |
| exit |
