** Changed in: golang-1.6 (Ubuntu Xenial)
Assignee: (unassigned) => Michael Hudson-Doyle (mwhudson)
** Changed in: golang-1.6 (Ubuntu Yakkety)
Assignee: (unassigned) => Michael Hudson-Doyle (mwhudson)
** Also affects: golang-1.7 (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: golang-1.7 (Ubuntu Yakkety)
** No longer affects: golang-1.7 (Ubuntu Xenial)
** Changed in: golang-1.6 (Ubuntu)
Status: New => Invalid
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1681294
Title:
ugly "pthread_create failed: Resource temporarily unavailable" running
snaps
Status in golang-1.6 package in Ubuntu:
Invalid
Status in golang-1.7 package in Ubuntu:
New
Status in golang-1.6 source package in Xenial:
New
Status in golang-1.6 source package in Yakkety:
New
Bug description:
[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.
To manage notifications about this bug go to:
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