| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2018 Oracle, Inc. All Rights Reserved. |
| # |
| # FS QA Test No. 511 |
| # |
| # Test a specific sequence of fsx operations that causes an mmap read past |
| # eof to return nonzero contents. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick rw zero prealloc |
| |
| # Import common functions. |
| . ./common/punch |
| |
| _require_scratch |
| _require_xfs_io_command "falloc" "-k" |
| _require_xfs_io_command "fzero" |
| |
| _scratch_mkfs_sized $((1024 * 1024 * 256)) >>$seqres.full 2>&1 |
| _scratch_mount |
| |
| $XFS_IO_PROG -fc "pwrite 0 256m" -c fsync $SCRATCH_MNT/file >>$seqres.full 2>&1 |
| rm -f $SCRATCH_MNT/file |
| |
| cat >> $tmp.fsxops << ENDL |
| truncate 0x0 0x1f0d6 0x380e1 |
| write 0x1ad87 0x6c99 0x180d6 |
| zero_range 0x14426 0xd3aa 0x21a20 keep_size |
| mapread 0x1f69a 0x2386 0x21a20 |
| ENDL |
| |
| victim=$SCRATCH_MNT/a |
| touch $victim |
| $here/ltp/fsx --replay-ops $tmp.fsxops $victim > $tmp.output 2>&1 || cat $tmp.output |
| |
| echo "Silence is golden" |
| status=0 |
| exit |
