Re: git clone http://git.savannah.gnu.org/cgit/xboard.git segfaults

On Mon, Aug 17, 2009 at 15:56, Ali Polatel[off-list ref] wrote:

$subject.
git version 1.6.4

Here's what gdb has to say about it:

2456 alip@harikalardiyari> gdb --args git clone http://git.savannah.gnu.org/cgit/xboard.git
...
Getting pack 06483273097cbac210f10a4bd43324ae660053e6
 which contains 74e24bdc2ec3f275da63ca1396a773e7043cb9e9

Program received signal SIGSEGV, Segmentation fault.

This is the http clone interface generated by cgit, and a quick test
gives me an identical segfault, while `git clone
http://git.sv.gnu.org/r/xboard.git` succeeds. I can only guess, but
maybe this has something to do with caching in cgit:

$ curl http://git.savannah.gnu.org/cgit/xboard.git/objects/info/packs
P pack-720d634dfc5e7511332c1e6851f7c5c5f88e7af2.pack
P pack-06483273097cbac210f10a4bd43324ae660053e6.pack
P pack-a0a25c7cc57128b5317e0b5e7b8de7a59afe9af6.pack

$ curl http://git.savannah.gnu.org/cgit/xboard.git/objects/pack/pack-720d634dfc5e7511332c1e6851f7c5c5f88e7af2.pack

pack-720d634dfc5e7511332c1e6851f7c5c5f88e7af2.pack

$ curl http://git.savannah.gnu.org/cgit/xboard.git/objects/pack/pack-720d634dfc5e7511332c1e6851f7c5c5f88e7af2.idx

pack-720d634dfc5e7511332c1e6851f7c5c5f88e7af2.idx

$ git verify-pack -v pack-720d634dfc5e7511332c1e6851f7c5c5f88e7af2.pack
[snip]
non delta: 115 objects
chain length = 1: 64 objects
chain length = 2: 57 objects
chain length = 3: 16 objects
chain length = 4: 10 objects
chain length = 5: 7 objects
chain length = 6: 1 object
pack-720d634dfc5e7511332c1e6851f7c5c5f88e7af2.pack: ok

$ curl http://git.savannah.gnu.org/cgit/xboard.git/objects/pack/pack-06483273097cbac210f10a4bd43324ae660053e6.pack

pack-06483273097cbac210f10a4bd43324ae660053e6.pack

$ curl http://git.savannah.gnu.org/cgit/xboard.git/objects/pack/pack-06483273097cbac210f10a4bd43324ae660053e6.idx

pack-06483273097cbac210f10a4bd43324ae660053e6.idx

$ git verify-pack -v pack-06483273097cbac210f10a4bd43324ae660053e6.pack
[snip]
74e24bdc2ec3f275da63ca1396a773e7043cb9e9 blob   921 286 12694
[snip]
non delta: 233 objects
chain length = 1: 86 objects
chain length = 2: 74 objects
chain length = 3: 47 objects
chain length = 4: 8 objects
chain length = 5: 5 objects
chain length = 6: 1 object
pack-06483273097cbac210f10a4bd43324ae660053e6.pack: ok


$ curl http://git.savannah.gnu.org/cgit/xboard.git/objects/pack/pack-a0a25c7cc57128b5317e0b5e7b8de7a59afe9af6.pack

pack-a0a25c7cc57128b5317e0b5e7b8de7a59afe9af6.pack

$ curl http://git.savannah.gnu.org/cgit/xboard.git/objects/pack/pack-a0a25c7cc57128b5317e0b5e7b8de7a59afe9af6.idx

pack-a0a25c7cc57128b5317e0b5e7b8de7a59afe9af6.idx

$ git verify-pack -v pack-a0a25c7cc57128b5317e0b5e7b8de7a59afe9af6.pack
[snip]
non delta: 1139 objects
chain length = 1: 454 objects
chain length = 2: 349 objects
chain length = 3: 301 objects
chain length = 4: 235 objects
chain length = 5: 179 objects
chain length = 6: 96 objects
chain length = 7: 52 objects
chain length = 8: 37 objects
chain length = 9: 21 objects
chain length = 10: 6 objects
chain length = 11: 5 objects
chain length = 12: 1 object
chain length = 13: 2 objects
chain length = 14: 1 object
chain length = 15: 2 objects
chain length = 16: 1 object
chain length = 17: 1 object
chain length = 18: 2 objects
chain length = 19: 1 object
chain length = 20: 1 object
chain length = 21: 1 object
chain length = 22: 1 object
chain length = 23: 2 objects
chain length = 24: 2 objects
chain length = 25: 1 object
chain length = 26: 1 object
chain length = 27: 1 object
chain length = 28: 1 object
chain length = 29: 1 object
chain length = 30: 1 object
chain length = 31: 1 object
chain length = 32: 1 object
chain length = 33: 2 objects
chain length = 34: 3 objects
chain length = 35: 2 objects
chain length = 36: 1 object
chain length = 37: 1 object
chain length = 38: 1 object
chain length = 39: 2 objects
chain length = 40: 3 objects
chain length = 41: 1 object
chain length = 42: 2 objects
chain length = 43: 1 object
chain length = 44: 1 object
chain length = 45: 2 objects
chain length = 46: 1 object
pack-a0a25c7cc57128b5317e0b5e7b8de7a59afe9af6.pack: ok

Hmm, the packs looks ok so maybe the problem is related to our usage
of libcurl after all...

--
larsh