System time consistently falls behind, so hwclock -s is advancing the
system clock.
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https://bugs.launchpad.net/bugs/1283309
Title:
bash built-in read timeout (
Hwclock -s is run on the system at least weekly as system time drifts.
Adjtime is not installed.
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Title:
bash built-in r
With multiple bash scripts running for over a month,
I now have random read fails at least once an hour PER SCRIPT.
Restarting the script did not help.
Restarting bash helps for a while.
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Also failing in
Bash 5.0.6ubuntu1.2
In focal 20.04.5 LTS
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Title:
bash built-in read timeout (-t) doesn't work
Status i
[Expired for bash (Ubuntu) because there has been no activity for 60
days.]
** Changed in: bash (Ubuntu)
Status: Incomplete => Expired
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While date
Do
Read -t 60 x
Done
In another terminal, adjust the system clock by a few seconds
Repeat hourly until the read hangs.
Sometimes it hangs immediately after setting clock,
Sometimes it runs for hours.
I have seen hangs semi regularly for the last 5, maybe 10+ years.
It often hangs with
I cannot seem to reproduce this issue on Jammy bash 5.1-6ubuntu1:
```
$ time read -t 2 test
real0m2,000s
user0m0,000s
sys 0m0,000s
$
```
@crtiger Could you please describe your "changing the system clock and
wait for ntp run" reproducer in more detail?
** Changed in: bash (Ubuntu)
Still fails randomly
@ jammy bash 5.1-6ubuntu1
Read -t 60 failure can often be triggered by changing the system clock
slightly. It often fails if waiting when ntp runs.
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: bash (Ubuntu)
Status: New => Confirmed
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