| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0-or-later |
| # Copyright (c) 2020, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 516 |
| # |
| # Update sunit and width and make sure that the filesystem still passes |
| # xfs_repair afterwards. |
| |
| . ./common/preamble |
| _begin_fstest auto quick |
| |
| # Override the default cleanup function. |
| _cleanup() |
| { |
| rm -f $tmp.* |
| cd / |
| } |
| |
| # Import common functions. |
| . ./common/fuzzy |
| |
| # real QA test starts here |
| _supported_fs xfs |
| _require_scratch_nocheck |
| |
| # Assume that if we can run scrub on the test dev we can run it on the scratch |
| # fs too. |
| run_scrub=0 |
| _supports_xfs_scrub $TEST_DIR $TEST_DEV && run_scrub=1 |
| |
| log() |
| { |
| echo "$*" | _tee_kernlog $seqres.full |
| } |
| |
| __test_mount_opts() |
| { |
| local mounted=0 |
| |
| # Try to mount the fs with our test options. |
| _try_scratch_mount "$@" >> $seqres.full 2>&1 && mounted=1 |
| if [ $mounted -gt 0 ]; then |
| # Implant a sentinel file to see if repair nukes the directory |
| # later. Scrub, unmount, and check for errors. |
| echo moo > $SCRATCH_MNT/a |
| grep "$SCRATCH_MNT" /proc/mounts >> $seqres.full |
| test $run_scrub -gt 0 && \ |
| _scratch_scrub -n >> $seqres.full |
| _scratch_unmount |
| _scratch_xfs_repair -n >> $seqres.full 2>&1 || \ |
| echo "Repair found problems." |
| else |
| echo "mount failed" >> $seqres.full |
| fi |
| _scratch_xfs_get_sb_field unit >> $seqres.full |
| _scratch_xfs_get_sb_field width >> $seqres.full |
| |
| # Run xfs_repair in repair mode to see if it can be baited into nuking |
| # the root filesystem on account of the sunit update. |
| _scratch_xfs_repair >> $seqres.full 2>&1 |
| |
| # If the previous mount succeeded, mount the fs and look for the file |
| # we implanted. |
| if [ $mounted -gt 0 ]; then |
| _scratch_mount |
| test -f $SCRATCH_MNT/a || echo "Root directory got nuked." |
| _scratch_unmount |
| fi |
| |
| echo >> $seqres.full |
| } |
| |
| test_sunit_opts() |
| { |
| echo "Format with 4k stripe unit; 1x stripe width" >> $seqres.full |
| _scratch_mkfs -b size=4k -d sunit=8,swidth=8 >> $seqres.full 2>&1 |
| |
| __test_mount_opts "$@" |
| } |
| |
| test_su_opts() |
| { |
| local mounted=0 |
| |
| echo "Format with 256k stripe unit; 4x stripe width" >> $seqres.full |
| _scratch_mkfs -b size=1k -d su=256k,sw=4 >> $seqres.full 2>&1 |
| |
| __test_mount_opts "$@" |
| } |
| |
| test_repair_detection() |
| { |
| local mounted=0 |
| |
| echo "Format with 256k stripe unit; 4x stripe width" >> $seqres.full |
| _scratch_mkfs -b size=1k -d su=256k,sw=4 >> $seqres.full 2>&1 |
| |
| # Try to mount the fs with our test options. |
| _try_scratch_mount >> $seqres.full 2>&1 && mounted=1 |
| if [ $mounted -gt 0 ]; then |
| # Implant a sentinel file to see if repair nukes the directory |
| # later. Scrub, unmount, and check for errors. |
| echo moo > $SCRATCH_MNT/a |
| grep "$SCRATCH_MNT" /proc/mounts >> $seqres.full |
| test $run_scrub -gt 0 && \ |
| _scratch_scrub -n >> $seqres.full |
| _scratch_unmount |
| _scratch_xfs_repair -n >> $seqres.full 2>&1 || \ |
| echo "Repair found problems." |
| else |
| echo "mount failed" >> $seqres.full |
| fi |
| |
| # Update the superblock like the kernel used to do. |
| _scratch_xfs_get_sb_field unit >> $seqres.full |
| _scratch_xfs_get_sb_field width >> $seqres.full |
| _scratch_xfs_set_sb_field unit 256 >> $seqres.full |
| _scratch_xfs_set_sb_field width 1024 >> $seqres.full |
| _scratch_xfs_get_sb_field unit >> $seqres.full |
| _scratch_xfs_get_sb_field width >> $seqres.full |
| |
| # Run xfs_repair in repair mode to see if it can be baited into nuking |
| # the root filesystem on account of the sunit update. |
| _scratch_xfs_repair >> $seqres.full 2>&1 |
| |
| # If the previous mount succeeded, mount the fs and look for the file |
| # we implanted. |
| if [ $mounted -gt 0 ]; then |
| _scratch_mount |
| test -f $SCRATCH_MNT/a || echo "Root directory got nuked." |
| _scratch_unmount |
| fi |
| |
| echo >> $seqres.full |
| } |
| |
| # Format with a 256k stripe unit and 4x stripe width, and try various mount |
| # options that want to change that and see if they blow up. Normally you |
| # would never change the stripe *unit*, so it's no wonder this is not well |
| # tested. |
| |
| log "Test: no raid parameters" |
| test_su_opts |
| |
| log "Test: 256k stripe unit; 4x stripe width" |
| test_su_opts -o sunit=512,swidth=2048 |
| |
| log "Test: 256k stripe unit; 5x stripe width" |
| test_su_opts -o sunit=512,swidth=2560 |
| |
| # Note: Larger stripe units probably won't mount |
| log "Test: 512k stripe unit; 4x stripe width" |
| test_su_opts -o sunit=1024,swidth=4096 |
| |
| log "Test: 512k stripe unit; 3x stripe width" |
| test_su_opts -o sunit=1024,swidth=3072 |
| |
| # Note: Should succeed with kernel warnings, and should not create repair |
| # failures or nuke the root directory. |
| log "Test: 128k stripe unit; 8x stripe width" |
| test_su_opts -o sunit=256,swidth=2048 |
| |
| # Note: Should succeed without nuking the root dir |
| log "Test: Repair of 128k stripe unit; 8x stripe width" |
| test_repair_detection |
| |
| # Brian Foster noticed a bug in an earlier version of the patch that avoids |
| # updating the ondisk sunit/swidth values if they would cause later repair |
| # failures. The bug was that we wouldn't convert the kernel mount option sunit |
| # value to the correct incore units until after computing the inode geometry. |
| # This caused it to behave incorrectly when the filesystem was formatted with |
| # sunit=1fsb and the mount options try to increase swidth. |
| log "Test: Formatting with sunit=1fsb,swidth=1fsb and mounting with larger swidth" |
| test_sunit_opts -o sunit=8,swidth=64 |
| |
| # success, all done |
| status=0 |
| exit |