tests/generic/019

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 #
   5 # FSQA Test No. generic/019
   6 #
   7 # Run fsstress and fio(dio/aio and mmap) and simulate disk failure
   8 # check filesystem consistency at the end.
   9 #
  10 seq=`basename $0`
  11 seqres=$RESULT_DIR/$seq
  12 echo "QA output created by $seq"
  13
  14 here=`pwd`
  15 tmp=/tmp/$$
  16 fio_config=$tmp.fio
  17 status=1        # failure is the default!
  18
  19 # get standard environment, filters and checks
  20 . ./common/rc
  21 . ./common/filter
  22 _supported_fs generic
  23 _require_scratch
  24 _require_block_device $SCRATCH_DEV
  25 _require_fail_make_request
  26
  27 SYSFS_BDEV=`_sysfs_dev $SCRATCH_DEV`
  28
  29 allow_fail_make_request()
  30 {
  31     echo "Allow global fail_make_request feature"
  32     echo 100 > $DEBUGFS_MNT/fail_make_request/probability
  33     echo 9999999 > $DEBUGFS_MNT/fail_make_request/times
  34     echo 0 >  /sys/kernel/debug/fail_make_request/verbose
  35 }
  36
  37 disallow_fail_make_request()
  38 {
  39     echo "Disallow global fail_make_request feature"
  40     echo 0 > $DEBUGFS_MNT/fail_make_request/probability
  41     echo 0 > $DEBUGFS_MNT/fail_make_request/times
  42 }
  43
  44 start_fail_scratch_dev()
  45 {
  46     echo "Force SCRATCH_DEV device failure"
  47     echo " echo 1 > $SYSFS_BDEV/make-it-fail" >> $seqres.full
  48     echo 1 > $SYSFS_BDEV/make-it-fail
  49 }
  50
  51 stop_fail_scratch_dev()
  52 {
  53     echo "Make SCRATCH_DEV device operable again"
  54     echo " echo 0 > $SYSFS_BDEV/make-it-fail" >> $seqres.full
  55     echo 0 > $SYSFS_BDEV/make-it-fail
  56 }
  57
  58 _cleanup()
  59 {
  60     poweron_scratch_dev
  61     disallow_fail_make_request
  62     rm -f $tmp.*
  63 }
  64 trap "_cleanup; exit \$status" 1 2 3 15
  65
  66 RUN_TIME=$((20+10*$TIME_FACTOR))
  67 NUM_JOBS=$((4*LOAD_FACTOR))
  68 BLK_DEV_SIZE=`blockdev --getsz $SCRATCH_DEV`
  69 FILE_SIZE=$((BLK_DEV_SIZE * 512))
  70
  71 cat >$fio_config <<EOF
  72 ###########
  73 # $seq test's fio activity
  74 # Filenames derived from jobsname and jobid like follows:
  75 # ${JOB_NAME}.${JOB_ID}.${ITERATION_ID}
  76 [global]
  77 ioengine=libaio
  78 bs=4k
  79 directory=${SCRATCH_MNT}
  80 filesize=${FILE_SIZE}
  81 size=9999T
  82 continue_on_error=write
  83 ignore_error=EIO,ENOSPC:EIO
  84 error_dump=0
  85
  86 [stress_dio_aio_activity]
  87 create_on_open=1
  88 fallocate=none
  89 iodepth=128*${LOAD_FACTOR}
  90 direct=1
  91 buffered=0
  92 numjobs=${NUM_JOBS}
  93 rw=randwrite
  94 runtime=40+${RUN_TIME}
  95 time_based
  96
  97 [stress_mmap_activity]
  98 ioengine=mmap
  99 create_on_open=0
 100 fallocate=1
 101 fdatasync=40960
 102 filesize=8M
 103 size=9999T
 104 numjobs=${NUM_JOBS}
 105 rw=randwrite
 106 runtime=40+${RUN_TIME}
 107 time_based
 108
 109 EOF
 110
 111 _require_fio $fio_config
 112
 113 # Disable all sync operations to get higher load
 114 FSSTRESS_AVOID="$FSSTRESS_AVOID -ffsync=0 -fsync=0 -ffdatasync=0 -f setattr=1"
 115
 116 _workout()
 117 {
 118         out=$SCRATCH_MNT/fsstress.$$
 119         args=`_scale_fsstress_args -p 1 -n999999999 -f setattr=0 $FSSTRESS_AVOID -d $out`
 120         echo ""
 121         echo "Start fsstress.."
 122         echo ""
 123         echo "fsstress $args" >> $seqres.full
 124         $FSSTRESS_PROG $args > /dev/null 2>&1 &
 125         fs_pid=$!
 126         echo "Start fio.."
 127         cat $fio_config >>  $seqres.full
 128         $FIO_PROG $fio_config >> $seqres.full 2>&1 &
 129         fio_pid=$!
 130
 131         # Let's it work for awhile, and force device failure
 132         sleep $RUN_TIME
 133         start_fail_scratch_dev
 134         # After device turns in to failed state filesystem may yet not know about
 135         # that so buffered write(2) may succeed, but any integrity operations
 136         # such as (sync, fsync, fdatasync, direct-io) should fail.
 137         dd if=/dev/zero of=$SCRATCH_MNT/touch_failed_filesystem count=1 bs=4k conv=fsync \
 138             >> $seqres.full 2>&1 && \
 139             _fail "failed: still able to perform integrity fsync on $SCRATCH_MNT"
 140
 141         kill $fs_pid &> /dev/null
 142         wait $fs_pid
 143         wait $fio_pid
 144
 145         # We expect that broken FS still can be umounted
 146         run_check _scratch_unmount
 147         # Once filesystem was umounted no one is able to write to block device
 148         # It is now safe to bring device back to normal state
 149         stop_fail_scratch_dev
 150
 151         # In order to check that filesystem is able to recover journal on mount(2)
 152         # perform mount/umount, after that all errors should be fixed
 153         _scratch_mount
 154         run_check _scratch_unmount
 155 }
 156
 157 # real QA test starts here
 158
 159 rm -f $seqres.full
 160 _scratch_mkfs >> $seqres.full 2>&1 || _fail "mkfs failed"
 161 _scratch_mount
 162 allow_fail_make_request
 163 _workout
 164 status=$?
 165 disallow_fail_make_request
 166 exit