From: Darrick J. Wong Date: Wed, 4 Jul 2018 04:50:30 +0000 (-0700) Subject: generic: mread past eof shows nonzero contents X-Git-Tag: v2022.05.01~1463 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a125b86c8632fbdf0019239d61f0eba9c36cf0c0;p=users%2Fhch%2Fxfstests-dev.git generic: mread past eof shows nonzero contents Certain sequences of generic/127 invocations complain about being able to mread nonzero contents past eof. Replicate that here as a regression test. Signed-off-by: Darrick J. Wong Reviewed-by: Eryu Guan Signed-off-by: Eryu Guan --- diff --git a/tests/generic/499 b/tests/generic/499 new file mode 100755 index 000000000..99d6d3086 --- /dev/null +++ b/tests/generic/499 @@ -0,0 +1,57 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2018 Oracle, Inc. All Rights Reserved. +# +# FS QA Test No. 499 +# +# Test a specific sequence of fsx operations that causes an mmap read past +# eof to return nonzero contents. +# +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/punch + +# real QA test starts here +_supported_fs generic +_supported_os Linux +_require_scratch +_require_xfs_io_command "fcollapse" +_require_xfs_io_command "fzero" + +rm -f $seqres.full + +_scratch_mkfs >>$seqres.full 2>&1 +_scratch_mount + +cat >> $tmp.fsxops << ENDL +fallocate 0x77e2 0x5f06 0x269a2 keep_size +mapwrite 0x2e7fc 0x42ba 0x3f989 +write 0x67a9 0x714e 0x3f989 +write 0x39f96 0x185a 0x3f989 +collapse_range 0x36000 0x8000 0x3f989 +mapread 0x74c0 0x1bb3 0x3e2d0 +truncate 0x0 0x8aa2 0x3e2d0 +zero_range 0x1265 0x783d 0x8aa2 +mapread 0x7bd8 0xeca 0x8aa2 +ENDL + +victim=$SCRATCH_MNT/a +touch $victim +$here/ltp/fsx --replay-ops $tmp.fsxops $victim > $tmp.output || cat $tmp.output + +echo "Silence is golden" +status=0 +exit diff --git a/tests/generic/499.out b/tests/generic/499.out new file mode 100644 index 000000000..c363e6848 --- /dev/null +++ b/tests/generic/499.out @@ -0,0 +1,2 @@ +QA output created by 499 +Silence is golden diff --git a/tests/generic/group b/tests/generic/group index 83a6fdab7..b2a093f4b 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -501,3 +501,4 @@ 496 auto quick swap 497 auto quick swap collapse 498 auto quick log +499 auto quick rw collapse zero