linux-kernel - Re: [fs] f7e33bdbd6: ltp.ftruncate04

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Date:   Wed, 1 Sep 2021 11:03:57 +0800
From:   Oliver Sang <oliver.sang@...el.com>
To:     Jeff Layton <jlayton@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        lkp@...el.com, ltp@...ts.linux.it
Subject: Re: [fs]  f7e33bdbd6: ltp.ftruncate04_64.fail

Hi Jeff,

On Wed, Aug 25, 2021 at 06:32:38AM -0400, Jeff Layton wrote:
> On Wed, 2021-08-25 at 13:17 +0800, kernel test robot wrote:
> > 
> > Greeting,
> > 
> > FYI, we noticed the following commit (built with gcc-9):
> > 
> > commit: f7e33bdbd6d1bdf9c3df8bba5abcf3399f957ac3 ("fs: remove mandatory file locking support")
> > https://git.kernel.org/cgit/linux/kernel/git/jlayton/linux.git locks-next
> > 
> > 
> > in testcase: ltp
> > version: ltp-x86_64-14c1f76-1_20210821
> > with following parameters:
> > 
> > 	disk: 1HDD
> > 	fs: ext4
> > 	test: syscalls-07
> > 	ucode: 0xe2
> > 
> > test-description: The LTP testsuite contains a collection of tools for testing the Linux kernel and related features.
> > test-url: http://linux-test-project.github.io/
> > 
> > 
> > on test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz with 32G memory
> > 
> > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
> > 
> > 
> > 
> 
> [...]
> 
> > <<<test_start>>>
> > tag=ftruncate04_64 stime=1629792639
> > cmdline="ftruncate04_64"
> > contacts=""
> > analysis=exit
> > <<<test_output>>>
> > tst_device.c:89: TINFO: Found free device 0 '/dev/loop0'
> > tst_test.c:916: TINFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
> > mke2fs 1.44.5 (15-Dec-2018)
> > tst_test.c:1348: TINFO: Timeout per run is 0h 25m 00s
> > ftruncate04.c:116: TINFO: Child locks file
> > ftruncate04.c:49: TFAIL: ftruncate() offset before lock succeeded unexpectedly
> > ftruncate04.c:49: TFAIL: ftruncate() offset in lock succeeded unexpectedly
> > ftruncate04.c:84: TPASS: ftruncate() offset after lock succeded
> > ftruncate04.c:127: TINFO: Child unlocks file
> > ftruncate04.c:84: TPASS: ftruncate() offset in lock succeded
> > ftruncate04.c:84: TPASS: ftruncate() offset before lock succeded
> > ftruncate04.c:84: TPASS: ftruncate() offset after lock succeded
> > 
> > Summary:
> > passed   4
> > failed   2
> > broken   0
> > skipped  0
> > warnings 0
> 
> I think this failed because of the above, which is expected now that we
> ignore the "mand" mount option (and mandatory locking support is gone).
> 
> Oliver, you may need to update the expected test output for this test.

Thanks for the information! we will do the corresponding change ASAP

> 
> Thanks,
> -- 
> Jeff Layton <jlayton@...nel.org>
>