Set 256 blocks in a block group, then inject I/O pressure, it will trigger off kernel BUG in ext4_mb_mark_diskspace_used. Regression test for commit a08f789d2ab5 ext4: fix bug_on ext4_mb_use_inode_pa. Signed-off-by: Sun Ke <sunke32@xxxxxxxxxx> --- tests/ext4/058 | 33 +++++++++++++++++++++++++++++++++ tests/ext4/058.out | 2 ++ 2 files changed, 35 insertions(+) create mode 100755 tests/ext4/058 create mode 100644 tests/ext4/058.out diff --git a/tests/ext4/058 b/tests/ext4/058 new file mode 100755 index 00000000..b718c1ac --- /dev/null +++ b/tests/ext4/058 @@ -0,0 +1,33 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2022 HUAWEI. All Rights Reserved. +# +# FS QA Test 058 +# +# Set 256 blocks in a block group, then inject I/O pressure, +# it will trigger off kernel BUG in ext4_mb_mark_diskspace_used +# +# Regression test for commit +# a08f789d2ab5 ext4: fix bug_on ext4_mb_use_inode_pa +# +. ./common/preamble +_begin_fstest auto + +# real QA test starts here + +_supported_fs ext4 +_fixed_by_kernel_commit a08f789d2ab5 \ + "ext4: fix bug_on ext4_mb_use_inode_pa" +_require_scratch + +# set 256 blocks in a block group +_scratch_mkfs -g 256 >>$seqres.full 2>&1 || _fail "mkfs failed" +_scratch_mount + +$FSSTRESS_PROG -d $SCRATCH_MNT/stress -n 1000 >> $seqres.full + +echo "Silence is golden" + +# success, all done +status=0 +exit diff --git a/tests/ext4/058.out b/tests/ext4/058.out new file mode 100644 index 00000000..fb5ca60b --- /dev/null +++ b/tests/ext4/058.out @@ -0,0 +1,2 @@ +QA output created by 058 +Silence is golden -- 2.13.6
