Re: [Possible Bug] Commit generates GC repack failure
Randall S. Becker
Git Mailing List
Duy Nguyen
See Also
2019-01-14 15:03:18 UTC
On Mon, Jan 14, 2019 at 9:51 PM Randall S. Becker
<> wrote:
> Hi All,
> I'm trying to track down what happened this morning. We had a commit that
> caused a background gc to occur. What happened was:
> $ git commit -m "history commit ... "
> Auto packing the repository in background for optimum performance.
> See "git help gc" for manual housekeeping.
> warning: The last gc run reported the following. Please correct the root
> cause
> and remove .git/gc.log.
> Automatic cleanup will not be performed until the file is removed.
> fatal: open /dev/null failed: Invalid function argument

sanitize_stdfds() in setup.c can attempt to open /dev/null then
redirect stdout and stderr to it. I think this is part of the
daemonization that is done in background gc.

> fatal: failed to run repack
> Obviously the /dev/null open was not right, but I don't know where this is
> in the git code to investigate further. Any pointers on where to look would
> be appreciated. This started happening at  2.20.1 on the NonStop platform.
> Cheers,
> Randall
> -- Brief whoami:
>  NonStop developer since approximately 211288444200000000
>  UNIX developer since approximately 421664400
> -- In my real life, I talk too much.