[Touch-packages] [Bug 1283309] Re: bash built-in read timeout (-t) doesn't work
System time consistently falls behind, so hwclock -s is advancing the system clock. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1283309 Title: bash built-in read timeout (-t) doesn't work Status in bash package in Ubuntu: Expired Bug description: This should timeout after 2 seconds (based on bash man page) but it doesn't: #read -t 2 test (waits infinitely, only terminates after pressing [enter] or ctrl-C, etc..) bash --version: GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu) Installed bash package version: 4.2-2ubuntu2.1 $ lsb_release -rd Description: Ubuntu 12.04.4 LTS Release: 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1283309/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1283309] Re: bash built-in read timeout (-t) doesn't work
Hwclock -s is run on the system at least weekly as system time drifts. Adjtime is not installed. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1283309 Title: bash built-in read timeout (-t) doesn't work Status in bash package in Ubuntu: Expired Bug description: This should timeout after 2 seconds (based on bash man page) but it doesn't: #read -t 2 test (waits infinitely, only terminates after pressing [enter] or ctrl-C, etc..) bash --version: GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu) Installed bash package version: 4.2-2ubuntu2.1 $ lsb_release -rd Description: Ubuntu 12.04.4 LTS Release: 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1283309/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1283309] Re: bash built-in read timeout (-t) doesn't work
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. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1283309 Title: bash built-in read timeout (-t) doesn't work Status in bash package in Ubuntu: Expired Bug description: This should timeout after 2 seconds (based on bash man page) but it doesn't: #read -t 2 test (waits infinitely, only terminates after pressing [enter] or ctrl-C, etc..) bash --version: GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu) Installed bash package version: 4.2-2ubuntu2.1 $ lsb_release -rd Description: Ubuntu 12.04.4 LTS Release: 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1283309/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1283309] Re: bash built-in read timeout (-t) doesn't work
Also failing in Bash 5.0.6ubuntu1.2 In focal 20.04.5 LTS -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1283309 Title: bash built-in read timeout (-t) doesn't work Status in bash package in Ubuntu: Expired Bug description: This should timeout after 2 seconds (based on bash man page) but it doesn't: #read -t 2 test (waits infinitely, only terminates after pressing [enter] or ctrl-C, etc..) bash --version: GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu) Installed bash package version: 4.2-2ubuntu2.1 $ lsb_release -rd Description: Ubuntu 12.04.4 LTS Release: 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1283309/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1283309] Re: bash built-in read timeout (-t) doesn't work
[Expired for bash (Ubuntu) because there has been no activity for 60 days.] ** Changed in: bash (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1283309 Title: bash built-in read timeout (-t) doesn't work Status in bash package in Ubuntu: Expired Bug description: This should timeout after 2 seconds (based on bash man page) but it doesn't: #read -t 2 test (waits infinitely, only terminates after pressing [enter] or ctrl-C, etc..) bash --version: GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu) Installed bash package version: 4.2-2ubuntu2.1 $ lsb_release -rd Description: Ubuntu 12.04.4 LTS Release: 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1283309/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1283309] Re: bash built-in read timeout (-t) doesn't work
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 no apparent system clock changes, But more often when a cron job runs ntp No VM involved. Hangs on multiple AMD systems. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1283309 Title: bash built-in read timeout (-t) doesn't work Status in bash package in Ubuntu: Incomplete Bug description: This should timeout after 2 seconds (based on bash man page) but it doesn't: #read -t 2 test (waits infinitely, only terminates after pressing [enter] or ctrl-C, etc..) bash --version: GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu) Installed bash package version: 4.2-2ubuntu2.1 $ lsb_release -rd Description: Ubuntu 12.04.4 LTS Release: 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1283309/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1283309] Re: bash built-in read timeout (-t) doesn't work
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) Status: Confirmed => Incomplete ** Changed in: bash (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1283309 Title: bash built-in read timeout (-t) doesn't work Status in bash package in Ubuntu: Incomplete Bug description: This should timeout after 2 seconds (based on bash man page) but it doesn't: #read -t 2 test (waits infinitely, only terminates after pressing [enter] or ctrl-C, etc..) bash --version: GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu) Installed bash package version: 4.2-2ubuntu2.1 $ lsb_release -rd Description: Ubuntu 12.04.4 LTS Release: 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1283309/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1283309] Re: bash built-in read timeout (-t) doesn't work
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. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1283309 Title: bash built-in read timeout (-t) doesn't work Status in bash package in Ubuntu: Confirmed Bug description: This should timeout after 2 seconds (based on bash man page) but it doesn't: #read -t 2 test (waits infinitely, only terminates after pressing [enter] or ctrl-C, etc..) bash --version: GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu) Installed bash package version: 4.2-2ubuntu2.1 $ lsb_release -rd Description: Ubuntu 12.04.4 LTS Release: 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1283309/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
