On Sat, Aug 10, 2019 at 09:05:33AM -0700, Gregory Szorc wrote: > I tracked down a source of Git corrupting repositories to lock file > design not being robust when containers / PID namespaces are present. > > In my case, the corruption stemmed from premature release of the `git > gc` lock in the gc.pid file. But since the lock file code for that file > is in gc.c, there could be other lock files in Git affected by the same > design limitation as well. I don't think there are. Most of Git's locks are predicated purely on the existence of the lockfile (with the intent that they'd work over systems like NFS). The gc lock is a weird one-off. And while it's not great for multiple gc's to run at the same time (because it wastes CPU), two of them running at the same time shouldn't cause a corruption. If you have a reproducible demonstration where that happens, I'd be very interested to see it. -Peff
