Sorry about not getting back to this sooner -- I wanted to check with some standards-minded people about this.
On 2020-02-08 22:55, Graham Percival wrote: > At the moment I'm leaning towards ignoring any ESRCH errors in the test suite, > but let's see what Colin says about the attached test case (a modified version > of the test case that Peter already produced). So, it turns out that FreeBSD returning ESRCH is considered to be a bug, and has now been fixed: https://lists.freebsd.org/pipermail/svn-src-head/2020-February/133736.html I haven't found the right Linux people to ask about this -- Peter, can you find someone in Debian who knows about such things? In the mean time, I'm inclined to ignore ESRCH but with a comment explaining that this behaviour is of dubious standards compliance, but it is present on multiple platforms so we accept it anyway. -- Colin Percival Security Officer Emeritus, FreeBSD | The power to serve Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid