Le mar. 8 janv. 2019 à 07:34, Jeff King <peff@xxxxxxxx> a écrit : > > On Thu, Jan 03, 2019 at 10:52:48AM +0100, Guilhem Bonnefille wrote: > > > One of my users reported a strange problem: a simple HTTPS clone did > > not work with Git 1.8.3.1 on RedHat 7. > > I did many tests and I was not able to understand why his clone don't > > work while I'm able to do it on other similar host. > > > > Nevertheless, we did more investigations. One of them: a raw strace. > > I discovered two strange behaviours: > > - fetch-pack closes its standard input and standard output and then > > tries to print the references on standard input and finaly dies. > > - git-remote-https does not react to fetch-pack death and continue > > polling an empty set of FD. > > > > [...] > > > > 2769 poll(NULL, 0, 1000) = 0 (Timeout) > > We actually don't use poll() very much in Git. And poking around the > v1.8.3.1 source, I do not see any places where remote-https would call > poll(), and none outside of "git help" and "git credential-cache-daemon" > that would ever provide a timeout like "1000". > > I wonder if this poll is actually being run by libcurl. Is it possible > to get a backtrace of the looping process with gdb? Quite hard to debug as it occured on a computer provided by a customer, far from me... > I'd also point out that v1.8.3.1 is over 5 years old, and there have > been quite a few http-related fixes over the years. Yes, it is an old version, but it is the version provided with RedHat 7. > There is a good > chance that if this is a Git bug, it has long since been fixed. Is it > possible to reproduce with a more modern version of Git? > What is surprisingly is that I was unable to reproduce with the same version on an other computer. During this time, my user discovered the IT team of the customer prvide a much more recent version of Git (2.X). With this new version, the problem was not reproduced. Thanks for all your investigations. -- Guilhem BONNEFILLE -=- JID: guyou@xxxxxxxxxxxx MSN: guilhem_bonnefille@xxxxxxxxxxx -=- mailto:guilhem.bonnefille@xxxxxxxxx -=- http://nathguil.free.fr/
