* possible BUG: selftest about raw_skew failed
@ 2018-04-21 14:47 jeffrin
2018-04-21 14:47 ` Jeffrin Thalakkottoor
` (2 more replies)
0 siblings, 3 replies; 12+ messages in thread
From: jeffrin @ 2018-04-21 14:47 UTC (permalink / raw)
hello,
failure of a test in selftest:timers
selftests: raw_skew
========================================
WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
Bail out!
Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0
1..0
not ok 1..7 selftests: raw_skew [FAIL]
To reproduce :
make -C tools/testing/selftests/timers/ run_tests
Linux debian 4.17.0-rc1+ #3 SMP Sat Apr 21 03:41:44 IST 2018 x86_64 GNU/Linux
GNU Make 4.2.1
Binutils 2.30
Util-linux 2.31.1
Mount 2.31.1
Linux C Library 2.27
Dynamic linker (ldd) 2.27
readlink: missing operand
Try 'readlink --help' for more information.
Procps 3.3.14
Kbd 2.0.4
Console-tools 2.0.4
Sh-utils 8.28
Udev 238
--
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rajagiri school of engineering and technology
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^ permalink raw reply [flat|nested] 12+ messages in thread* possible BUG: selftest about raw_skew failed
2018-04-21 14:47 possible BUG: selftest about raw_skew failed jeffrin
@ 2018-04-21 14:47 ` Jeffrin Thalakkottoor
2018-04-26 21:28 ` tglx
2018-04-26 21:33 ` john.stultz
2 siblings, 0 replies; 12+ messages in thread
From: Jeffrin Thalakkottoor @ 2018-04-21 14:47 UTC (permalink / raw)
hello,
failure of a test in selftest:timers
selftests: raw_skew
========================================
WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
Bail out!
Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0
1..0
not ok 1..7 selftests: raw_skew [FAIL]
To reproduce :
make -C tools/testing/selftests/timers/ run_tests
Linux debian 4.17.0-rc1+ #3 SMP Sat Apr 21 03:41:44 IST 2018 x86_64 GNU/Linux
GNU Make 4.2.1
Binutils 2.30
Util-linux 2.31.1
Mount 2.31.1
Linux C Library 2.27
Dynamic linker (ldd) 2.27
readlink: missing operand
Try 'readlink --help' for more information.
Procps 3.3.14
Kbd 2.0.4
Console-tools 2.0.4
Sh-utils 8.28
Udev 238
--
software engineer
rajagiri school of engineering and technology
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^ permalink raw reply [flat|nested] 12+ messages in thread
* possible BUG: selftest about raw_skew failed
2018-04-21 14:47 possible BUG: selftest about raw_skew failed jeffrin
2018-04-21 14:47 ` Jeffrin Thalakkottoor
@ 2018-04-26 21:28 ` tglx
2018-04-26 21:28 ` Thomas Gleixner
2018-04-27 7:41 ` mlichvar
2018-04-26 21:33 ` john.stultz
2 siblings, 2 replies; 12+ messages in thread
From: tglx @ 2018-04-26 21:28 UTC (permalink / raw)
On Sat, 21 Apr 2018, Jeffrin Thalakkottoor wrote:
Cc'ing John and Miroslav
> hello,
>
> failure of a test in selftest:timers
>
> selftests: raw_skew
> ========================================
> WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
> Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
> Bail out!
> Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0
> 1..0
> not ok 1..7 selftests: raw_skew [FAIL]
>
>
> To reproduce :
>
> make -C tools/testing/selftests/timers/ run_tests
>
>
>
>
> Linux debian 4.17.0-rc1+ #3 SMP Sat Apr 21 03:41:44 IST 2018 x86_64 GNU/Linux
>
> GNU Make 4.2.1
> Binutils 2.30
> Util-linux 2.31.1
> Mount 2.31.1
> Linux C Library 2.27
> Dynamic linker (ldd) 2.27
> readlink: missing operand
> Try 'readlink --help' for more information.
> Procps 3.3.14
> Kbd 2.0.4
> Console-tools 2.0.4
> Sh-utils 8.28
> Udev 238
>
> --
> software engineer
> rajagiri school of engineering and technology
>
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^ permalink raw reply [flat|nested] 12+ messages in thread
* possible BUG: selftest about raw_skew failed
2018-04-26 21:28 ` tglx
@ 2018-04-26 21:28 ` Thomas Gleixner
2018-04-27 7:41 ` mlichvar
1 sibling, 0 replies; 12+ messages in thread
From: Thomas Gleixner @ 2018-04-26 21:28 UTC (permalink / raw)
On Sat, 21 Apr 2018, Jeffrin Thalakkottoor wrote:
Cc'ing John and Miroslav
> hello,
>
> failure of a test in selftest:timers
>
> selftests: raw_skew
> ========================================
> WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
> Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
> Bail out!
> Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0
> 1..0
> not ok 1..7 selftests: raw_skew [FAIL]
>
>
> To reproduce :
>
> make -C tools/testing/selftests/timers/ run_tests
>
>
>
>
> Linux debian 4.17.0-rc1+ #3 SMP Sat Apr 21 03:41:44 IST 2018 x86_64 GNU/Linux
>
> GNU Make 4.2.1
> Binutils 2.30
> Util-linux 2.31.1
> Mount 2.31.1
> Linux C Library 2.27
> Dynamic linker (ldd) 2.27
> readlink: missing operand
> Try 'readlink --help' for more information.
> Procps 3.3.14
> Kbd 2.0.4
> Console-tools 2.0.4
> Sh-utils 8.28
> Udev 238
>
> --
> software engineer
> rajagiri school of engineering and technology
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in
the body of a message to majordomo at vger.kernel.org
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^ permalink raw reply [flat|nested] 12+ messages in thread
* possible BUG: selftest about raw_skew failed
2018-04-26 21:28 ` tglx
2018-04-26 21:28 ` Thomas Gleixner
@ 2018-04-27 7:41 ` mlichvar
2018-04-27 7:41 ` Miroslav Lichvar
2018-04-27 15:28 ` jeffrin
1 sibling, 2 replies; 12+ messages in thread
From: mlichvar @ 2018-04-27 7:41 UTC (permalink / raw)
On Thu, Apr 26, 2018 at 11:28:29PM +0200, Thomas Gleixner wrote:
> On Sat, 21 Apr 2018, Jeffrin Thalakkottoor wrote:
> > selftests: raw_skew
> > ========================================
> > WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
> > Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
Was ntpd, systemd-timesyncd, or some other NTP/PTP daemon running
shortly before or during the test?
The warning indicates that the clock was slewed by adjtime() or
adjtimex(), which makes the measurement of the frequency less accurate
and the test may fail.
Maybe this test and other tests that measure the frequency of the
system clock should be modified to SKIP when adjtimex() returns a
non-zero offset (or the frequency changes during the test)?
--
Miroslav Lichvar
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^ permalink raw reply [flat|nested] 12+ messages in thread
* possible BUG: selftest about raw_skew failed
2018-04-27 7:41 ` mlichvar
@ 2018-04-27 7:41 ` Miroslav Lichvar
2018-04-27 15:28 ` jeffrin
1 sibling, 0 replies; 12+ messages in thread
From: Miroslav Lichvar @ 2018-04-27 7:41 UTC (permalink / raw)
On Thu, Apr 26, 2018@11:28:29PM +0200, Thomas Gleixner wrote:
> On Sat, 21 Apr 2018, Jeffrin Thalakkottoor wrote:
> > selftests: raw_skew
> > ========================================
> > WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
> > Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
Was ntpd, systemd-timesyncd, or some other NTP/PTP daemon running
shortly before or during the test?
The warning indicates that the clock was slewed by adjtime() or
adjtimex(), which makes the measurement of the frequency less accurate
and the test may fail.
Maybe this test and other tests that measure the frequency of the
system clock should be modified to SKIP when adjtimex() returns a
non-zero offset (or the frequency changes during the test)?
--
Miroslav Lichvar
--
To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in
the body of a message to majordomo at vger.kernel.org
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^ permalink raw reply [flat|nested] 12+ messages in thread
* possible BUG: selftest about raw_skew failed
2018-04-27 7:41 ` mlichvar
2018-04-27 7:41 ` Miroslav Lichvar
@ 2018-04-27 15:28 ` jeffrin
2018-04-27 15:28 ` Jeffrin Thalakkottoor
1 sibling, 1 reply; 12+ messages in thread
From: jeffrin @ 2018-04-27 15:28 UTC (permalink / raw)
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 2122 bytes --]
i think may be systemd-timesyncd was running.
anyway currently the status is as follows...
$systemctl status systemd-timesyncd.service
● systemd-timesyncd.service - Network Time Synchronization
Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service;
enabled; vendor preset: enabled)
Active: active (running) since Fri 2018-04-27 19:26:16 IST; 1h 11min ago
Docs: man:systemd-timesyncd.service(8)
Main PID: 514 (systemd-timesyn)
Status: "Synchronized to time server 123.108.200.124:123
(0.debian.pool.ntp.org)."
Tasks: 2 (limit: 4382)
Memory: 1.8M
CGroup: /system.slice/systemd-timesyncd.service
└─514 /lib/systemd/systemd-timesyncd
$
The test in the latest run show "PASS"
see below...
selftests: raw_skew
========================================
Estimating clock drift: 26.836(est) 26.838(act) [OK]
Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0
1..0
ok 1..7 selftests: raw_skew [PASS]
On Fri, Apr 27, 2018 at 1:11 PM, Miroslav Lichvar <mlichvar at redhat.com> wrote:
> On Thu, Apr 26, 2018 at 11:28:29PM +0200, Thomas Gleixner wrote:
>> On Sat, 21 Apr 2018, Jeffrin Thalakkottoor wrote:
>> > selftests: raw_skew
>> > ========================================
>> > WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
>> > Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
>
> Was ntpd, systemd-timesyncd, or some other NTP/PTP daemon running
> shortly before or during the test?
>
> The warning indicates that the clock was slewed by adjtime() or
> adjtimex(), which makes the measurement of the frequency less accurate
> and the test may fail.
>
> Maybe this test and other tests that measure the frequency of the
> system clock should be modified to SKIP when adjtimex() returns a
> non-zero offset (or the frequency changes during the test)?
>
> --
> Miroslav Lichvar
--
software engineer
rajagiri school of engineering and technology
--
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^ permalink raw reply [flat|nested] 12+ messages in thread* possible BUG: selftest about raw_skew failed
2018-04-27 15:28 ` jeffrin
@ 2018-04-27 15:28 ` Jeffrin Thalakkottoor
0 siblings, 0 replies; 12+ messages in thread
From: Jeffrin Thalakkottoor @ 2018-04-27 15:28 UTC (permalink / raw)
i think may be systemd-timesyncd was running.
anyway currently the status is as follows...
$systemctl status systemd-timesyncd.service
● systemd-timesyncd.service - Network Time Synchronization
Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service;
enabled; vendor preset: enabled)
Active: active (running) since Fri 2018-04-27 19:26:16 IST; 1h 11min ago
Docs: man:systemd-timesyncd.service(8)
Main PID: 514 (systemd-timesyn)
Status: "Synchronized to time server 123.108.200.124:123
(0.debian.pool.ntp.org)."
Tasks: 2 (limit: 4382)
Memory: 1.8M
CGroup: /system.slice/systemd-timesyncd.service
└─514 /lib/systemd/systemd-timesyncd
$
The test in the latest run show "PASS"
see below...
selftests: raw_skew
========================================
Estimating clock drift: 26.836(est) 26.838(act) [OK]
Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0
1..0
ok 1..7 selftests: raw_skew [PASS]
On Fri, Apr 27, 2018@1:11 PM, Miroslav Lichvar <mlichvar@redhat.com> wrote:
> On Thu, Apr 26, 2018@11:28:29PM +0200, Thomas Gleixner wrote:
>> On Sat, 21 Apr 2018, Jeffrin Thalakkottoor wrote:
>> > selftests: raw_skew
>> > ========================================
>> > WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
>> > Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
>
> Was ntpd, systemd-timesyncd, or some other NTP/PTP daemon running
> shortly before or during the test?
>
> The warning indicates that the clock was slewed by adjtime() or
> adjtimex(), which makes the measurement of the frequency less accurate
> and the test may fail.
>
> Maybe this test and other tests that measure the frequency of the
> system clock should be modified to SKIP when adjtimex() returns a
> non-zero offset (or the frequency changes during the test)?
>
> --
> Miroslav Lichvar
--
software engineer
rajagiri school of engineering and technology
--
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^ permalink raw reply [flat|nested] 12+ messages in thread
* possible BUG: selftest about raw_skew failed
2018-04-21 14:47 possible BUG: selftest about raw_skew failed jeffrin
2018-04-21 14:47 ` Jeffrin Thalakkottoor
2018-04-26 21:28 ` tglx
@ 2018-04-26 21:33 ` john.stultz
2018-04-26 21:33 ` John Stultz
2018-04-27 15:27 ` jeffrin
2 siblings, 2 replies; 12+ messages in thread
From: john.stultz @ 2018-04-26 21:33 UTC (permalink / raw)
On Sat, Apr 21, 2018 at 7:47 AM, Jeffrin Thalakkottoor
<jeffrin at rajagiritech.edu.in> wrote:
> hello,
>
> failure of a test in selftest:timers
>
> selftests: raw_skew
> ========================================
> WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
> Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
So you're ignoring the warning above. If an ADJ_OFFSET operation is
going on, ntpd (or something similar) is changing the clock, which
will kill the estimated drift calculation.
-john
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^ permalink raw reply [flat|nested] 12+ messages in thread
* possible BUG: selftest about raw_skew failed
2018-04-26 21:33 ` john.stultz
@ 2018-04-26 21:33 ` John Stultz
2018-04-27 15:27 ` jeffrin
1 sibling, 0 replies; 12+ messages in thread
From: John Stultz @ 2018-04-26 21:33 UTC (permalink / raw)
On Sat, Apr 21, 2018 at 7:47 AM, Jeffrin Thalakkottoor
<jeffrin@rajagiritech.edu.in> wrote:
> hello,
>
> failure of a test in selftest:timers
>
> selftests: raw_skew
> ========================================
> WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
> Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
So you're ignoring the warning above. If an ADJ_OFFSET operation is
going on, ntpd (or something similar) is changing the clock, which
will kill the estimated drift calculation.
-john
--
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^ permalink raw reply [flat|nested] 12+ messages in thread
* possible BUG: selftest about raw_skew failed
2018-04-26 21:33 ` john.stultz
2018-04-26 21:33 ` John Stultz
@ 2018-04-27 15:27 ` jeffrin
2018-04-27 15:27 ` Jeffrin Thalakkottoor
1 sibling, 1 reply; 12+ messages in thread
From: jeffrin @ 2018-04-27 15:27 UTC (permalink / raw)
I kind of ignored. i was not sure what that meant actually.
On Fri, Apr 27, 2018 at 3:03 AM, John Stultz <john.stultz at linaro.org> wrote:
> On Sat, Apr 21, 2018 at 7:47 AM, Jeffrin Thalakkottoor
> <jeffrin at rajagiritech.edu.in> wrote:
>> hello,
>>
>> failure of a test in selftest:timers
>>
>> selftests: raw_skew
>> ========================================
>> WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
>> Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
>
> So you're ignoring the warning above. If an ADJ_OFFSET operation is
> going on, ntpd (or something similar) is changing the clock, which
> will kill the estimated drift calculation.
>
> -john
--
software engineer
rajagiri school of engineering and technology
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^ permalink raw reply [flat|nested] 12+ messages in thread
* possible BUG: selftest about raw_skew failed
2018-04-27 15:27 ` jeffrin
@ 2018-04-27 15:27 ` Jeffrin Thalakkottoor
0 siblings, 0 replies; 12+ messages in thread
From: Jeffrin Thalakkottoor @ 2018-04-27 15:27 UTC (permalink / raw)
I kind of ignored. i was not sure what that meant actually.
On Fri, Apr 27, 2018@3:03 AM, John Stultz <john.stultz@linaro.org> wrote:
> On Sat, Apr 21, 2018 at 7:47 AM, Jeffrin Thalakkottoor
> <jeffrin@rajagiritech.edu.in> wrote:
>> hello,
>>
>> failure of a test in selftest:timers
>>
>> selftests: raw_skew
>> ========================================
>> WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
>> Estimating clock drift: 17.910(est) 16.820(act) [FAILED]
>
> So you're ignoring the warning above. If an ADJ_OFFSET operation is
> going on, ntpd (or something similar) is changing the clock, which
> will kill the estimated drift calculation.
>
> -john
--
software engineer
rajagiri school of engineering and technology
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^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2018-04-27 15:28 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-04-21 14:47 possible BUG: selftest about raw_skew failed jeffrin
2018-04-21 14:47 ` Jeffrin Thalakkottoor
2018-04-26 21:28 ` tglx
2018-04-26 21:28 ` Thomas Gleixner
2018-04-27 7:41 ` mlichvar
2018-04-27 7:41 ` Miroslav Lichvar
2018-04-27 15:28 ` jeffrin
2018-04-27 15:28 ` Jeffrin Thalakkottoor
2018-04-26 21:33 ` john.stultz
2018-04-26 21:33 ` John Stultz
2018-04-27 15:27 ` jeffrin
2018-04-27 15:27 ` Jeffrin Thalakkottoor
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