Write to the last block of a sparse file in extent format on ext4 would hit BUG_ON() on unpatched kernel. Regression test for commit: f17722f ext4: Fix max file size and logical block counting of extent format file Signed-off-by: Eryu Guan <eguan@xxxxxxxxxx> --- Note that the second dd could triger a BUG_ON() on ext4/3.8 kernel in ext4_es_remove_extent(). I sent a patch for this issue, please see http://www.spinics.net/lists/linux-ext4/msg36784.html 299 | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 299.out | 1 + group | 1 + 3 files changed, 64 insertions(+) create mode 100644 299 create mode 100644 299.out diff --git a/299 b/299 new file mode 100644 index 0000000..9b52243 --- /dev/null +++ b/299 @@ -0,0 +1,62 @@ +#! /bin/bash +# FS QA Test No. 299 +# +# Write to the last block of a sparse file in extent format on ext4 would +# hit BUG_ON() on unpatched kernel. +# +# Regression test for commit: +# f17722f ext4: Fix max file size and logical block counting of extent format file +# +#----------------------------------------------------------------------- +# Copyright (c) 2013 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# +# creator +owner=eguan@xxxxxxxxxx + +seq=`basename $0` +echo "QA output created by $seq" + +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $testfile +} + +# get standard environment, filters and checks +. ./common.rc +. ./common.filter + +testfile=$TEST_DIR/testfile.$seq + +# real QA test starts here +_supported_fs generic +_supported_os Linux + +block_size=`stat -f $TEST_DEV | grep "Block size" | cut -d " " -f3` + +# Create sparse file +dd if=/dev/zero of=$testfile bs=$block_size count=1 seek=$((2**32 - 2)) >/dev/null 2>&1 +sync +# Write to the last block +dd if=/dev/zero of=$testfile bs=$block_size count=1 seek=$((2**32 - 1)) >/dev/null 2>&1 + +# Got here without hitting BUG_ON(), test passed +status=0 +exit diff --git a/299.out b/299.out new file mode 100644 index 0000000..0b41c6f --- /dev/null +++ b/299.out @@ -0,0 +1 @@ +QA output created by 299 diff --git a/group b/group index 3039af4..a993729 100644 --- a/group +++ b/group @@ -417,3 +417,4 @@ deprecated 296 dump auto quick 297 auto freeze 298 auto quick metadata +299 auto quick -- 1.8.0.2 _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
