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Junio and I both noticed that the new builtin-fetch was segfaulting immediately on http/https/ftp style URLs (those that went through libcurl and the commit walker). Although the builtin-fetch changes in this area were really just minor refactorings there was one major change made: we invoked http_init(), http_cleanup() then http_init() again in the same process. When we call curl_easy_cleanup() on each active_request_slot we are telling libcurl we did not want that buffer to be used again. Unfortunately we did not also deallocate the active_request_slot itself nor did we NULL out active_queue_head. This lead us to attempt to reuse these cleaned up libcurl handles when we later tried to invoke http_init() a second time to reactivate the curl library. The next file get operation then immediately segfaulted on most versions of libcurl. Properly freeing our own buffers and clearing the list causes us to reinitialize the curl buffers again if/when we need to use libcurl from within this same process. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
//////////////////////////////////////////////////////////////// GIT - the stupid content tracker //////////////////////////////////////////////////////////////// "git" can mean anything, depending on your mood. - random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant. - stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang. - "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room. - "goddamn idiotic truckload of sh*t": when it breaks Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. Git is an Open Source project covered by the GNU General Public License. It was originally written by Linus Torvalds with help of a group of hackers around the net. It is currently maintained by Junio C Hamano. Please read the file INSTALL for installation instructions. See Documentation/tutorial.txt to get started, then see Documentation/everyday.txt for a useful minimum set of commands, and "man git-commandname" for documentation of each command. CVS users may also want to read Documentation/cvs-migration.txt. Many Git online resources are accessible from http://git.or.cz/ including full documentation and Git related tools. The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org. To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at http://marc.theaimsgroup.com/?l=git and other archival sites. The messages titled "A note from the maintainer", "What's in git.git (stable)" and "What's cooking in git.git (topics)" and the discussion following them on the mailing list give a good reference for project status, development direction and remaining tasks.