Hi, On Mon, 3 Apr 2006, Kees-Jan Dijkzeul wrote: > I'm trying to get Git to manage a 5Gb source tree. Under linux, this > works like a charm. Under cygwin, however, I run in to difficulties. > For example: > > $ git-clone sgp-wa/ sgp-wa.clone > fatal: packfile > ./objects/pack/pack-56aa013a0234e198467ed37ae5db925764a6ee98.pack > cannot be mapped. > fatal: unexpected EOF > fetch-pack from '/cygdrive/e/Projects/sgp-wa/.git' failed. > > To figure out what is happening, I printed the value of errno, which > turns out to be 12 (Cannot allocate memory). I'm not sure how mmap is > implemented in cygwin, but if they allocate memory and load the file > into it, then this error is not surprising, as the pack file in > question is 1.5Gb in size. The problem is not mmap() on cygwin, but that a fork() has to jump through loops to reinstall the open file descriptors on cygwin. If the corresponding file was deleted, that fails. Therefore, we work around that on cygwin by actually reading the file into memory, *not* mmap()ing it. Hth, Dscho - : send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html