This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1873517 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1873517 Title: waitid on riscv64 5.4.0-24-generic is behaving incorrectly Status in linux package in Ubuntu: Incomplete Bug description: waitid returns 0 PID which is unexpected. uname -a Linux ubuntu 5.4.0-24-generic #28-Ubuntu SMP Fri Apr 10 15:33:42 UTC 2020 riscv64 riscv64 riscv64 GNU/Linux ./stress-ng --wait 1 stress-ng: info: [33052] defaulting to a 86400 second (1 day, 0.00 secs) run per stressor stress-ng: info: [33052] dispatching hogs: 1 wait stress-ng: fail: [33053] stress-ng-wait: waitid returned PID 0 but expected PID 33054 stress-ng: fail: [33053] stress-ng-wait: waitid returned si_signo 0 (signal 0) but expected SIGCHLD stress-ng: fail: [33053] stress-ng-wait: waitid returned unexpected si_code 0 stress-ng: fail: [33053] stress-ng-wait: waitid returned PID 0 but expected PID 33054 stress-ng: fail: [33053] stress-ng-wait: waitid returned si_signo 0 (signal 0) but expected SIGCHLD info: 5 failures reached, aborting stress process stress-ng: fail: [33053] stress-ng-wait: waitid returned unexpected si_code 0 stress-ng: error: [33052] process 33053 (stress-ng-wait) terminated with an error, exit status=1 (stress-ng core failure) stress-ng: info: [33052] unsuccessful run completed in 0.07s The call in stress-ng is just: wret = waitid(P_PID, pid_r, &info, options); ..and it checks if the info struct is being populated correctly, which it appears not to and gets a zero'd info struct. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1873517/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp