On Tue, May 28, 2013 at 01:51:09PM -0400, Jeff King wrote:
> On Thu, May 23, 2013 at 03:01:43PM +0200, Ian Kumlien wrote:
> > git 184.108.40.206 is started by xinetd
> > [...]
> > I have found "git receive-pack"s that has been running for days/weeks
> > without terminating....
> > Attaching gdb and doing a trace results in:
> > #0 0x0000003261207b35 in pthread_join () from /lib64/libpthread.so.0
> > #1 0x00000000004ce58b in finish_async ()
> > #2 0x000000000045744b in cmd_receive_pack ()
> > #3 0x0000000000404851 in handle_internal_command ()
> > #4 0x0000000000404c9d in main ()
> I recently fixed a deadlock that could happen in receive-pack when
> clients hung up before sending a valid pack header. The fix is commit
> 49ecfa1, and it's in git v220.127.116.11.
With dodgy connections this could easily happen =)
Really nice catch!
> The stack trace for the deadlock fixed by 49ecfa1 would have
> unpack_with_sideband between #1 and #2 above, but it is entirely
> possible that it is simply inlined in your build of git, depending on
> the -O level of your build (it is a static function that is only called
> from one place). So it seems likely that it is the culprit.
Yeah, since it's a RHEL 5 machine i don't even get a debug rpm package
I will upgrade all machines and keep monitoring, thanks!
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