Hi Rishi,
When I ran the August intermediate release on a single-cpu i386 machine
I was not able to reproduce your results. I did:
$ make
$ make install
$ ./runltp -f fs_bind
$ ./runltp -f fs_bind > run.out > run.err
$ grep PASSED run.out | wc -l
90
$ wc -l run.err
0
$ grep -i brok run.* | wc -l
0
Which shows all the tests passed and nothing broke. I'm trying to
reproduce the problem on other systems but I'm having trouble getting
other portions of LTP to compile (different bugs on different
systems) :(.
So I'm going to step through the information in your log and hope this
suggests things for you to investigate while I continue trying to
reproduce the problem:
On Tue, 2008-08-26 at 10:32 +0530, Rishikesh K Rajak wrote:
<snip>
> + diff -dEBb
> -q /root/ltp-full-20080731/results/fs_bind/move/test19/mtab.before
> /root/ltp-full-20080731/results/fs_bind/move/test19/mtab.after
> + '[' 1 -eq 0 ']'
> + tst_resm TWARN 'move/test19: did not properly clean up its mtab
> mounts'
> /root/ltp-full-20080731/testscripts/test_fs_bind.sh 0 WARN :
> move/test19: did not properly clean up its mtab mounts
This is the first warning I see. A diff of the mtab file produced:
+/tmp/ltp-8516/sandbox/share1 on /tmp/ltp-8516/sandbox/parent1/child1
type none (rw,bind)
So this means this mount was added by this test and not cleaned up --
hence the test and/or others that follow may be "broken".
Looking at the test19 portion of the debug trace we see what it does:
mkdir -p "parent1"
mount --bind "parent1" "parent1"
mount --make-rprivate "parent1"
mkdir -p "parent2"
mount --bind "parent2" "parent2"
mount --make-rprivate "parent2"
mkdir -p "share1"
mount --bind "share1" "share1"
mount --make-rshared "share1"
mount --make-rslave "parent1/child1"
(not including the post-test cleanup code)
So somehow in test19 /tmp/ltp-8516/sandbox/share1 was mounted
at /tmp/ltp-8516/sandbox/parent1/child1 and the test failed to clean it
up. The interesting thing here is I don't see where, at least according
to this log, that mount could have occurred. It's _probably_ a move
mount in the test19 script that's not reflected here in the log...
Here's an example of what we should see (the test just before this one
in the log):
> + (( nsucceeded++ ))
The test succeeded and now we're going to check the mounts in /proc:
> + check_proc_mounts
> move/test16 /root/ltp-full-20080731/results/fs_bind/move/test16
This is just the name of the function and its arguments. It translates
into:
> + local tname=move/test16
> + '[' '!'
> -r /root/ltp-full-20080731/results/fs_bind/move/test16/proc_mounts.before ']'
> + grep_proc_mounts
So /root/ltp-full-20080731/results/fs_bind/move/test16/proc_mounts.before is
readable. "grep" it.
> + diff -dEBb
> -q /root/ltp-full-20080731/results/fs_bind/move/test16/proc_mounts.before
> /root/ltp-full-20080731/results/fs_bind/move/test16/proc_mounts.after
> + '[' 0 -eq 0 ']'
> + '[' 1 -eq 1 ']'
> + rm
> -f /root/ltp-full-20080731/results/fs_bind/move/test16/proc_mounts.before
> /root/ltp-full-20080731/results/fs_bind/move/test16/proc_mounts.after
There are no differences so we remove the .before and .after files.
> + return 0
> + check_mounts
> move/test16 /root/ltp-full-20080731/results/fs_bind/move/test16
Now we check the mtab file in a similar fashion...
> + local tname=move/test16
> + '[' '!'
> -r /root/ltp-full-20080731/results/fs_bind/move/test16/mtab.before ']'
> + grep_mounts
> + diff -dEBb
> -q /root/ltp-full-20080731/results/fs_bind/move/test16/mtab.before
> /root/ltp-full-20080731/results/fs_bind/move/test16/mtab.after
> + '[' 0 -eq 0 ']'
> + '[' 1 -eq 1 ']'
> + rm
> -f /root/ltp-full-20080731/results/fs_bind/move/test16/mtab.before
> /root/ltp-full-20080731/results/fs_bind/move/test16/mtab.after
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