Capture the failuer by the way of count error dmesg and give the description how i run the test to trigger problems. Signed-off-by: Zhao Hongjiang <zhaohongjiang@xxxxxxxxxx> --- tests/generic/310 | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 56 insertions(+), 1 deletions(-) mode change 100644 => 100755 tests/generic/310 diff --git a/tests/generic/310 b/tests/generic/310 old mode 100644 new mode 100755 index ef51422..f44799a --- a/tests/generic/310 +++ b/tests/generic/310 @@ -4,6 +4,17 @@ #Check if there are two threads,one keeps calling read() or lseek(), and #the other calling readdir(), both on the same directory fd. # +#When I ran this on ext3 (can be replaced with ext2/ext4) which has dir_index +#feature disabled, I got this: +# +#EXT3-fs error (device sdb): ext3_readdir: bad entry in directory #1134241: +#rec_len % 4 != 0 - offset=2704, inode=16973836, rec_len=12850, name_len=52 +#EXT3-fs error (device sdb): ext3_readdir: bad entry in directory #1134241: +#directory entry across blocks - offset=1672, inode=16973836, rec_len=14132, +#name_len=57 +# +#If we configured errors=remount-ro, the filesystem will become read-only. +# # Based on a testcase from Li Zefan <lizefan@xxxxxxxxxx>. # # http://marc.info/?l=linux-kernel&m=136123703211869&w=2 @@ -47,6 +58,37 @@ trap "_cleanup; exit \$status" 0 1 2 3 15 _supported_fs generic _supported_os Linux +dmesg -c > /dev/null + +nr_bug=`dmesg | grep -c "kernel BUG"` +nr_error=`dmesg | grep -c "error"` +nr_null=`dmesg | grep -c "kernel NULL pointer dereference"` +nr_warning=`dmesg | grep -c "^WARNING"` +nr_lockdep=`dmesg | grep -c "possible recursive locking detected"` + +#check if some kind of kernel bug happened +check_kernel_bug() +{ + new_bug=`dmesg | grep -c "kernel BUG"` + new_error=`dmesg | grep -c "error"` + new_null=`dmesg | grep -c "kernel NULL pointer dereference"` + new_warning=`dmesg | grep -c "^WARNING"` + new_lockdep=`dmesg | grep -c "possible recursive locking detected"` + + + # no kernel bug is detected + if [ $new_bug -eq $nr_bug -a $new_error -eq $nr_error -a \ + $new_null -eq $nr_null -a $new_warning -eq $nr_warning -a \ + $new_lockdep -eq $nr_lockdep ]; then + return 1 + fi + + nr_bug=$new_bug + nr_error=$new_error + nr_null=$new_null + nr_warning=$new_warning + nr_lockdep=$new_lockdep +} mkdir $TEST_DIR/tmp for n in {1..4096}; do touch $TEST_DIR/tmp/$n @@ -57,6 +99,13 @@ _test_read() src/t_readdir_1 $TEST_DIR/tmp & sleep 100 killall src/t_readdir_1 + check_kernel_bug + if [ $? -eq 1 ]; then + status=0 + else + echo "error: kernel bug was found, you can see the + dmesg for more infomation." + fi } _test_lseek() @@ -64,6 +113,13 @@ _test_lseek() src/t_readdir_2 $TEST_DIR/tmp & sleep 100 killall src/t_readdir_2 + check_kernel_bug + if [ $? -eq 1 ]; then + status=0 + else + echo "error: kernel bug was found, you can see the + dmesg for more infomation." + fi } _test_read @@ -72,5 +128,4 @@ _test_lseek # success, all done echo "*** done" rm -f $seq.full -status=0 exit -- 1.7.1 _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
