* [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory
@ 2019-01-15 11:24 Naresh Kamboju
2019-01-15 11:33 ` Rafael David Tinoco
` (2 more replies)
0 siblings, 3 replies; 9+ messages in thread
From: Naresh Kamboju @ 2019-01-15 11:24 UTC (permalink / raw)
To: ltp
readahead02 used to pass on arm32 on LTP-20180926 release. Now using
the latest LTP master it is getting FAILED.
tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
mke2fs 1.43.5 (04-Aug-2017)
[ 603.092608] EXT4-fs (loop0): mounting ext2 file system using the
ext4 subsystem
[ 603.107967] EXT4-fs (loop0): mounted filesystem without journal. Opts: (null)
tst_test.c:1085: INFO: Timeout per run is 0h 15m 00s
readahead02.c:359: INFO: overlayfs is not configured in this kernel.
readahead02.c:244: INFO: Test #0: readahead on file
readahead02.c:134: INFO: creating test file of size: 67108864
safe_file_ops.c:202: BROK: Failed to open FILE '/proc/self/io' for
reading at readahead02.c:113: ENOENT
Best regards
Naresh Kamboju
^ permalink raw reply [flat|nested] 9+ messages in thread* [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory
2019-01-15 11:24 [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory Naresh Kamboju
@ 2019-01-15 11:33 ` Rafael David Tinoco
2019-01-15 11:36 ` Jan Stancek
2019-01-15 13:03 ` Cyril Hrubis
2 siblings, 0 replies; 9+ messages in thread
From: Rafael David Tinoco @ 2019-01-15 11:33 UTC (permalink / raw)
To: ltp
Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
> readahead02 used to pass on arm32 on LTP-20180926 release. Now using
> the latest LTP master it is getting FAILED.
>
> tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
> tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
> mke2fs 1.43.5 (04-Aug-2017)
> [ 603.092608] EXT4-fs (loop0): mounting ext2 file system using the
> ext4 subsystem
> [ 603.107967] EXT4-fs (loop0): mounted filesystem without journal. Opts: (null)
> tst_test.c:1085: INFO: Timeout per run is 0h 15m 00s
> readahead02.c:359: INFO: overlayfs is not configured in this kernel.
> readahead02.c:244: INFO: Test #0: readahead on file
> readahead02.c:134: INFO: creating test file of size: 67108864
> safe_file_ops.c:202: BROK: Failed to open FILE '/proc/self/io' for
> reading at readahead02.c:113: ENOENT
>
> Best regards
> Naresh Kamboju
Naresh,
Commit 75506e4f1b52ea6bb63a52afb34035d9dde55d14 (syscalls/readahead02:
Simplify reading proc files) has added SAFE_FILE_LINES_SCANF() macro,
that is causing test to be BROKEN because it can’t find “/proc/self/io”.
IIRC, proc/self/io needs CONFIG_TASKSTATS to be enabled in kernel config
(looks like we are not enabling CONFIG_TASKSTATS in our config files for
beagle board, for example).
Looks like this test was passing by accident before, since there was no
/proc/self/io to be read in function get_bytes_read().
Cheers o/
Rafael
—
Rafael D. Tinoco
Linaro Kernel Validation
^ permalink raw reply [flat|nested] 9+ messages in thread
* [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory
2019-01-15 11:24 [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory Naresh Kamboju
2019-01-15 11:33 ` Rafael David Tinoco
@ 2019-01-15 11:36 ` Jan Stancek
2019-01-15 11:42 ` Rafael David Tinoco
` (2 more replies)
2019-01-15 13:03 ` Cyril Hrubis
2 siblings, 3 replies; 9+ messages in thread
From: Jan Stancek @ 2019-01-15 11:36 UTC (permalink / raw)
To: ltp
----- Original Message -----
> readahead02 used to pass on arm32 on LTP-20180926 release. Now using
> the latest LTP master it is getting FAILED.
>
> tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
> tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
> mke2fs 1.43.5 (04-Aug-2017)
> [ 603.092608] EXT4-fs (loop0): mounting ext2 file system using the
> ext4 subsystem
> [ 603.107967] EXT4-fs (loop0): mounted filesystem without journal. Opts:
> (null)
> tst_test.c:1085: INFO: Timeout per run is 0h 15m 00s
> readahead02.c:359: INFO: overlayfs is not configured in this kernel.
> readahead02.c:244: INFO: Test #0: readahead on file
> readahead02.c:134: INFO: creating test file of size: 67108864
> safe_file_ops.c:202: BROK: Failed to open FILE '/proc/self/io' for
> reading at readahead02.c:113: ENOENT
We switched from /proc/$pid to /proc/self in December:
commit 75506e4f1b52ea6bb63a52afb34035d9dde55d14
Date: Tue Dec 4 14:54:19 2018 +0100
syscalls/readahead02: Simplify reading proc files
Use SAFE_FILE_LINES_SCANF() for parsing multiline /proc/ files
Use /proc/self/io instead of /proc/$pid/io.
@Naresh, what is the kernel version you see this fail with?
>
> Best regards
> Naresh Kamboju
>
> --
> Mailing list info: https://lists.linux.it/listinfo/ltp
>
^ permalink raw reply [flat|nested] 9+ messages in thread* [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory
2019-01-15 11:36 ` Jan Stancek
@ 2019-01-15 11:42 ` Rafael David Tinoco
2019-01-15 12:06 ` Rafael David Tinoco
2019-01-15 11:43 ` Jan Stancek
2019-01-15 12:08 ` Naresh Kamboju
2 siblings, 1 reply; 9+ messages in thread
From: Rafael David Tinoco @ 2019-01-15 11:42 UTC (permalink / raw)
To: ltp
> On 15 Jan 2019, at 09:36, Jan Stancek <jstancek@redhat.com> wrote:
>
> ----- Original Message -----
>> readahead02 used to pass on arm32 on LTP-20180926 release. Now using
>> the latest LTP master it is getting FAILED.
>>
>> tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
>> tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
>> mke2fs 1.43.5 (04-Aug-2017)
>> [ 603.092608] EXT4-fs (loop0): mounting ext2 file system using the
>> ext4 subsystem
>> [ 603.107967] EXT4-fs (loop0): mounted filesystem without journal. Opts:
>> (null)
>> tst_test.c:1085: INFO: Timeout per run is 0h 15m 00s
>> readahead02.c:359: INFO: overlayfs is not configured in this kernel.
>> readahead02.c:244: INFO: Test #0: readahead on file
>> readahead02.c:134: INFO: creating test file of size: 67108864
>> safe_file_ops.c:202: BROK: Failed to open FILE '/proc/self/io' for
>> reading at readahead02.c:113: ENOENT
>
> We switched from /proc/$pid to /proc/self in December:
> commit 75506e4f1b52ea6bb63a52afb34035d9dde55d14
> Date: Tue Dec 4 14:54:19 2018 +0100
> syscalls/readahead02: Simplify reading proc files
>
> Use SAFE_FILE_LINES_SCANF() for parsing multiline /proc/ files
> Use /proc/self/io instead of /proc/$pid/io.
>
> @Naresh, what is the kernel version you see this fail with?
I missed /proc/$pid/io in my previous e-mail, so it is likely that
the only thing missing is CONFIG_TASKSTATS and CONFIG_TASK_IO_ACCOUNTING
to be set in kernel config for our builds. This shall enable
/proc/self/io and get rid of this error.
>> Best regards
>> Naresh Kamboju
>>
>> --
>> Mailing list info: https://lists.linux.it/listinfo/ltp
>
> --
> Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 9+ messages in thread
* [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory
2019-01-15 11:42 ` Rafael David Tinoco
@ 2019-01-15 12:06 ` Rafael David Tinoco
2019-01-15 12:29 ` Naresh Kamboju
0 siblings, 1 reply; 9+ messages in thread
From: Rafael David Tinoco @ 2019-01-15 12:06 UTC (permalink / raw)
To: ltp
> On 15 Jan 2019, at 09:36, Jan Stancek <jstancek@redhat.com> wrote:
>
> ----- Original Message -----
>> readahead02 used to pass on arm32 on LTP-20180926 release. Now using
>> the latest LTP master it is getting FAILED.
>>
>> tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
>> tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
>> mke2fs 1.43.5 (04-Aug-2017)
>> [ 603.092608] EXT4-fs (loop0): mounting ext2 file system using the
>> ext4 subsystem
>> [ 603.107967] EXT4-fs (loop0): mounted filesystem without journal. Opts:
>> (null)
>> tst_test.c:1085: INFO: Timeout per run is 0h 15m 00s
>> readahead02.c:359: INFO: overlayfs is not configured in this kernel.
>> readahead02.c:244: INFO: Test #0: readahead on file
>> readahead02.c:134: INFO: creating test file of size: 67108864
>> safe_file_ops.c:202: BROK: Failed to open FILE '/proc/self/io' for
>> reading at readahead02.c:113: ENOENT
>
> We switched from /proc/$pid to /proc/self in December:
> commit 75506e4f1b52ea6bb63a52afb34035d9dde55d14
> Date: Tue Dec 4 14:54:19 2018 +0100
> syscalls/readahead02: Simplify reading proc files
>
> Use SAFE_FILE_LINES_SCANF() for parsing multiline /proc/ files
> Use /proc/self/io instead of /proc/$pid/io.
>
> @Naresh, what is the kernel version you see this fail with?
I missed /proc/$pid/io in my previous e-mail, as Jan stated. So the test
was likely working because of that.
So, the only thing missing might be CONFIG_TASKSTATS and
CONFIG_TASK_IO_ACCOUNTING to be set in kernel config for our arm 32-bit
builds.
This shall enable /proc/self/io and get rid of this error.
-Rafael
^ permalink raw reply [flat|nested] 9+ messages in thread
* [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory
2019-01-15 12:06 ` Rafael David Tinoco
@ 2019-01-15 12:29 ` Naresh Kamboju
0 siblings, 0 replies; 9+ messages in thread
From: Naresh Kamboju @ 2019-01-15 12:29 UTC (permalink / raw)
To: ltp
On Tue, 15 Jan 2019 at 17:36, Rafael David Tinoco
<rafael.tinoco@linaro.org> wrote:
>
> > On 15 Jan 2019, at 09:36, Jan Stancek <jstancek@redhat.com> wrote:
> >
> > ----- Original Message -----
> >> readahead02 used to pass on arm32 on LTP-20180926 release. Now using
> >> the latest LTP master it is getting FAILED.
> >>
> >> tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
> >> tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
> >> mke2fs 1.43.5 (04-Aug-2017)
> >> [ 603.092608] EXT4-fs (loop0): mounting ext2 file system using the
> >> ext4 subsystem
> >> [ 603.107967] EXT4-fs (loop0): mounted filesystem without journal. Opts:
> >> (null)
> >> tst_test.c:1085: INFO: Timeout per run is 0h 15m 00s
> >> readahead02.c:359: INFO: overlayfs is not configured in this kernel.
> >> readahead02.c:244: INFO: Test #0: readahead on file
> >> readahead02.c:134: INFO: creating test file of size: 67108864
> >> safe_file_ops.c:202: BROK: Failed to open FILE '/proc/self/io' for
> >> reading at readahead02.c:113: ENOENT
> >
> > We switched from /proc/$pid to /proc/self in December:
> > commit 75506e4f1b52ea6bb63a52afb34035d9dde55d14
> > Date: Tue Dec 4 14:54:19 2018 +0100
> > syscalls/readahead02: Simplify reading proc files
> >
> > Use SAFE_FILE_LINES_SCANF() for parsing multiline /proc/ files
> > Use /proc/self/io instead of /proc/$pid/io.
> >
> > @Naresh, what is the kernel version you see this fail with?
>
> I missed /proc/$pid/io in my previous e-mail, as Jan stated. So the test
> was likely working because of that.
>
> So, the only thing missing might be CONFIG_TASKSTATS and
> CONFIG_TASK_IO_ACCOUNTING to be set in kernel config for our arm 32-bit
> builds.
This explanation is useful thanks Jan and Rafael.
- Naresh
^ permalink raw reply [flat|nested] 9+ messages in thread
* [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory
2019-01-15 11:36 ` Jan Stancek
2019-01-15 11:42 ` Rafael David Tinoco
@ 2019-01-15 11:43 ` Jan Stancek
2019-01-15 12:08 ` Naresh Kamboju
2 siblings, 0 replies; 9+ messages in thread
From: Jan Stancek @ 2019-01-15 11:43 UTC (permalink / raw)
To: ltp
----- Original Message -----
>
>
> ----- Original Message -----
> > readahead02 used to pass on arm32 on LTP-20180926 release. Now using
> > the latest LTP master it is getting FAILED.
> >
> > tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
> > tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
> > mke2fs 1.43.5 (04-Aug-2017)
> > [ 603.092608] EXT4-fs (loop0): mounting ext2 file system using the
> > ext4 subsystem
> > [ 603.107967] EXT4-fs (loop0): mounted filesystem without journal. Opts:
> > (null)
> > tst_test.c:1085: INFO: Timeout per run is 0h 15m 00s
> > readahead02.c:359: INFO: overlayfs is not configured in this kernel.
> > readahead02.c:244: INFO: Test #0: readahead on file
> > readahead02.c:134: INFO: creating test file of size: 67108864
> > safe_file_ops.c:202: BROK: Failed to open FILE '/proc/self/io' for
> > reading at readahead02.c:113: ENOENT
>
> We switched from /proc/$pid to /proc/self in December:
> commit 75506e4f1b52ea6bb63a52afb34035d9dde55d14
> Date: Tue Dec 4 14:54:19 2018 +0100
> syscalls/readahead02: Simplify reading proc files
>
> Use SAFE_FILE_LINES_SCANF() for parsing multiline /proc/ files
> Use /proc/self/io instead of /proc/$pid/io.
>
> @Naresh, what is the kernel version you see this fail with?
I see Rafael found possible explanation. get_bytes_read() wouldn't
loudly fail before commit above. Now it's using SAFE_ func, that
triggers TBROK if file doesn't exist.
>
> >
> > Best regards
> > Naresh Kamboju
> >
> > --
> > Mailing list info: https://lists.linux.it/listinfo/ltp
> >
>
> --
> Mailing list info: https://lists.linux.it/listinfo/ltp
>
^ permalink raw reply [flat|nested] 9+ messages in thread
* [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory
2019-01-15 11:36 ` Jan Stancek
2019-01-15 11:42 ` Rafael David Tinoco
2019-01-15 11:43 ` Jan Stancek
@ 2019-01-15 12:08 ` Naresh Kamboju
2 siblings, 0 replies; 9+ messages in thread
From: Naresh Kamboju @ 2019-01-15 12:08 UTC (permalink / raw)
To: ltp
On Tue, 15 Jan 2019 at 17:06, Jan Stancek <jstancek@redhat.com> wrote:
>
>
>
> ----- Original Message -----
> > readahead02 used to pass on arm32 on LTP-20180926 release. Now using
> > the latest LTP master it is getting FAILED.
> >
> > tst_device.c:230: INFO: Using test device LTP_DEV='/dev/loop0'
> > tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
> > mke2fs 1.43.5 (04-Aug-2017)
> > [ 603.092608] EXT4-fs (loop0): mounting ext2 file system using the
> > ext4 subsystem
> > [ 603.107967] EXT4-fs (loop0): mounted filesystem without journal. Opts:
> > (null)
> > tst_test.c:1085: INFO: Timeout per run is 0h 15m 00s
> > readahead02.c:359: INFO: overlayfs is not configured in this kernel.
> > readahead02.c:244: INFO: Test #0: readahead on file
> > readahead02.c:134: INFO: creating test file of size: 67108864
> > safe_file_ops.c:202: BROK: Failed to open FILE '/proc/self/io' for
> > reading at readahead02.c:113: ENOENT
>
> We switched from /proc/$pid to /proc/self in December:
> commit 75506e4f1b52ea6bb63a52afb34035d9dde55d14
> Date: Tue Dec 4 14:54:19 2018 +0100
> syscalls/readahead02: Simplify reading proc files
>
> Use SAFE_FILE_LINES_SCANF() for parsing multiline /proc/ files
> Use /proc/self/io instead of /proc/$pid/io.
>
> @Naresh, what is the kernel version you see this fail with?
@Jan Stancek , We are using Linux stable 4.20.1.
>
> >
> > Best regards
> > Naresh Kamboju
> >
> > --
> > Mailing list info: https://lists.linux.it/listinfo/ltp
> >
^ permalink raw reply [flat|nested] 9+ messages in thread
* [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory
2019-01-15 11:24 [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory Naresh Kamboju
2019-01-15 11:33 ` Rafael David Tinoco
2019-01-15 11:36 ` Jan Stancek
@ 2019-01-15 13:03 ` Cyril Hrubis
2 siblings, 0 replies; 9+ messages in thread
From: Cyril Hrubis @ 2019-01-15 13:03 UTC (permalink / raw)
To: ltp
Hi!
Agree with Rafael here, the test was passing by accident.
Fixed in:
https://github.com/linux-test-project/ltp/commit/a78e15494bfdc6be68026031ee6d7abd1e7ae9f2
Now the test should report skipped status.
--
Cyril Hrubis
chrubis@suse.cz
^ permalink raw reply [flat|nested] 9+ messages in thread
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2019-01-15 11:24 [LTP] LTP: '/proc/self/io' for reading at readahead02.c:113: ENOENT No such file or directory Naresh Kamboju
2019-01-15 11:33 ` Rafael David Tinoco
2019-01-15 11:36 ` Jan Stancek
2019-01-15 11:42 ` Rafael David Tinoco
2019-01-15 12:06 ` Rafael David Tinoco
2019-01-15 12:29 ` Naresh Kamboju
2019-01-15 11:43 ` Jan Stancek
2019-01-15 12:08 ` Naresh Kamboju
2019-01-15 13:03 ` Cyril Hrubis
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