I get "*** glibc detected *** git: double free or corruption (fasttop): 0x0000000001fab820 ***" reliably on the following set of commands. I'm working on a remote machine where I don't have administrative privileges, so I can't update from git 1.7.2.5 to a newer version. I figured I'd report it, even though I haven't checked to see if it still happens in a newer version of git. jgross@dr-wily:/tmp$ uname -a Linux dr-wily 2.6.32-5-xen-amd64 #1 SMP Mon Feb 25 02:51:39 UTC 2013 x86_64 GNU/Linux jgross@dr-wily:/tmp$ git --version git version 1.7.2.5 jgross@dr-wily:/tmp$ git clone git://github.com/JasonGross/barnowl.git Cloning into barnowl... remote: Counting objects: 16064, done. remote: Compressing objects: 100% (8172/8172), done. remote: Total 16064 (delta 8517), reused 14679 (delta 7321) Receiving objects: 100% (16064/16064), 8.69 MiB | 3.44 MiB/s, done. Resolving deltas: 100% (8517/8517), done. jgross@dr-wily:/tmp$ cd barnowl jgross@dr-wily:/tmp/barnowl$ git checkout git-bug Branch git-bug set up to track remote branch git-bug from origin. Switched to a new branch 'git-bug' jgross@dr-wily:/tmp/barnowl$ git shortlog | grep : | grep -v '' | less *** glibc detected *** git: double free or corruption (fasttop): 0x00000000023fa800 *** ======= Backtrace: ========= /lib/libc.so.6(+0x71e16)[0x7fe7ed258e16] /lib/libc.so.6(cfree+0x6c)[0x7fe7ed25db8c] git[0x48b125] git[0x4b7e08] git[0x4577c2] git[0x458151] git[0x404671] git[0x40484d] /lib/libc.so.6(__libc_start_main+0xfd)[0x7fe7ed205c8d] git[0x404009] ======= Memory map: ======== 00400000-0050e000 r-xp 00000000 ca:01 541613 /usr/bin/git 0070d000-00714000 rw-p 0010d000 ca:01 541613 /usr/bin/git 00714000-00760000 rw-p 00000000 00:00 0 023fa000-025b5000 rw-p 00000000 00:00 0 [heap] 7fe7e8000000-7fe7e8021000 rw-p 00000000 00:00 0 7fe7e8021000-7fe7ec000000 ---p 00000000 00:00 0 7fe7ec721000-7fe7ec737000 r-xp 00000000 ca:01 655372 /lib/libgcc_s.so.1 7fe7ec737000-7fe7ec936000 ---p 00016000 ca:01 655372 /lib/libgcc_s.so.1 7fe7ec936000-7fe7ec937000 rw-p 00015000 ca:01 655372 /lib/libgcc_s.so.1 7fe7ec937000-7fe7ed1e7000 r--p 00000000 ca:03 136990 /tmp/barnowl/.git/objects/pack/pack-67364344f941243318353ed78170fd5d35869d1f.pack 7fe7ed1e7000-7fe7ed340000 r-xp 00000000 ca:01 659512 /lib/libc-2.11.3.so 7fe7ed340000-7fe7ed53f000 ---p 00159000 ca:01 659512 /lib/libc-2.11.3.so 7fe7ed53f000-7fe7ed543000 r--p 00158000 ca:01 659512 /lib/libc-2.11.3.so 7fe7ed543000-7fe7ed544000 rw-p 0015c000 ca:01 659512 /lib/libc-2.11.3.so 7fe7ed544000-7fe7ed549000 rw-p 00000000 00:00 0 7fe7ed549000-7fe7ed560000 r-xp 00000000 ca:01 659507 /lib/libpthread-2.11.3.so 7fe7ed560000-7fe7ed75f000 ---p 00017000 ca:01 659507 /lib/libpthread-2.11.3.so 7fe7ed75f000-7fe7ed760000 r--p 00016000 ca:01 659507 /lib/libpthread-2.11.3.so 7fe7ed760000-7fe7ed761000 rw-p 00017000 ca:01 659507 /lib/libpthread-2.11.3.so 7fe7ed761000-7fe7ed765000 rw-p 00000000 00:00 0 7fe7ed765000-7fe7ed77c000 r-xp 00000000 ca:01 527676 /usr/lib/libz.so.1.2.3.4 7fe7ed77c000-7fe7ed97b000 ---p 00017000 ca:01 527676 /usr/lib/libz.so.1.2.3.4 7fe7ed97b000-7fe7ed97c000 rw-p 00016000 ca:01 527676 /usr/lib/libz.so.1.2.3.4 7fe7ed97c000-7fe7ed99a000 r-xp 00000000 ca:01 659508 /lib/ld-2.11.3.so 7fe7edaef000-7fe7edb5e000 r--p 00000000 ca:03 136991 /tmp/barnowl/.git/objects/pack/pack-67364344f941243318353ed78170fd5d35869d1f.idx 7fe7edb5e000-7fe7edb61000 rw-p 00000000 00:00 0 7fe7edb75000-7fe7edb99000 rw-p 00000000 00:00 0 7fe7edb99000-7fe7edb9a000 r--p 0001d000 ca:01 659508 /lib/ld-2.11.3.so 7fe7edb9a000-7fe7edb9b000 rw-p 0001e000 ca:01 659508 /lib/ld-2.11.3.so 7fe7edb9b000-7fe7edb9c000 rw-p 00000000 00:00 0 7fffd3766000-7fffd377b000 rw-p 00000000 00:00 0 [stack] 7fffd37ff000-7fffd3800000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] -Jason -- To unsubscribe from this list: 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