Public bug reported: [Impact] As reported here: https://lists.ubuntu.com/archives/snapcraft/2017-March/003497.html (and on internal lists), it is possible for a golang executable that calls syscall.Exec to print an ugly "pthread_create failed: Resource temporarily unavailable" message before it starts the new process. There is no functional effect, but snapd runs into this frequently so it interferes with a nice snappy experience.
Luckily for us, the bug was fixed upstream in the 1.8 release (https://github.com/golang/go/issues/18146) so I can just backport the fix to Xenial and Yakkety. [Test case] Run this code: package main // import "C" import ( "syscall" ) func main() { syscall.Exec("/bin/true", []string{"/bin/true"}, nil) } a few thousand times and check for messages (it prints a message ~2% of the time or so without the fix). [Regression potential] The patch is simple, if a bit verbose (it has some per-architecture changes). It has not been the cause of any bug reports in 1.8 as far as I am aware. So I would characterise the regression potential as very low. ** Affects: golang-1.6 (Ubuntu) Importance: Undecided Status: New ** Affects: golang-1.6 (Ubuntu Xenial) Importance: Undecided Status: New ** Affects: golang-1.6 (Ubuntu Yakkety) Importance: Undecided Status: New ** Also affects: golang-1.6 (Ubuntu Yakkety) Importance: Undecided Status: New ** Also affects: golang-1.6 (Ubuntu Xenial) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1681294 Title: ugly "pthread_create failed: Resource temporarily unavailable" running snaps To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/golang-1.6/+bug/1681294/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
