Re: git-http-fetch Segmentation fault
- From
Junio C Hamano <junkio@cox.net>
- Date
- May 8, 2007, 20:04 UTC
- Message-ID
- <7vfy672iao.fsf@assigned-by-dhcp.cox.net>
- In-Reply-To
- <20070508162735.6c530a70@localhost>
"Luiz Fernando N. Capitulino" <lcapitulino@mandriva.com.br> escreveu:
Show 14 quoted lines
> A friend of mine reported an easy to reproduce segmentation fault > when cloning through http from his repository: > > """ > ~/ git clone http://people.mandriva.com/~boiko/mandrivamenu.git > got 299cdadd846913a052df361e973a947622f23198 > walk 299cdadd846913a052df361e973a947622f23198 > ... > got 0ecd10d9d6ab020c2469a961777854afda705776 > /home/lcapitulino/git//bin/git-clone: line 33: 22353 Segmentation fault (core dumped) git-http-fetch $v -a -w "$tname" "$sha1" "$1" > """ > > Sometimes it shows up as a corrupted double-linked list, detected by > glibc:
Does not seem to reproduce for me on my x86_64 box nor an i386 box I happened to have access to. Both run Debian etch.
Here is an excerpt from a valgrind run on the x86_64 box. It does seem to find a handful "problematic" accesses, but all seem to be in the system libraries. I did not get any errors on the i386 box.
: gitster v/master; valgrind git-http-fetch -v -a -w remotes/origin/master 299cdadd846913a052df361e973a947622f23198 http://people.mandriva.com/~boiko/mandrivamenu.git/
==2120== Conditional jump or move depends on uninitialised value(s) ==2120== at 0x4010AEE: (within /lib/ld-2.3.6.so) ==2120== by 0x4006CB6: (within /lib/ld-2.3.6.so) ==2120== by 0x51FF260: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x51FECF7: _dl_open (in /lib/libc-2.3.6.so) ==2120== by 0x5201497: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x52014E1: __libc_dlopen_mode (in /lib/libc-2.3.6.so) ==2120== by 0x51DC456: __nss_lookup_function (in /lib/libc-2.3.6.so) ==2120== by 0x51B6FCE: (within /lib/libc-2.3.6.so) ==2120== by 0x51B7C06: getaddrinfo (in /lib/libc-2.3.6.so) ==2120== by 0x4ED31E2: (within /usr/lib/libcurl.so.3.0.0) ==2120== ==2120== Conditional jump or move depends on uninitialised value(s) ==2120== at 0x4010AF9: (within /lib/ld-2.3.6.so) ==2120== by 0x4006CB6: (within /lib/ld-2.3.6.so) ==2120== by 0x51FF260: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x51FECF7: _dl_open (in /lib/libc-2.3.6.so) ==2120== by 0x5201497: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x52014E1: __libc_dlopen_mode (in /lib/libc-2.3.6.so) ==2120== by 0x51DC456: __nss_lookup_function (in /lib/libc-2.3.6.so) ==2120== by 0x51B6FCE: (within /lib/libc-2.3.6.so) ==2120== by 0x51B7C06: getaddrinfo (in /lib/libc-2.3.6.so) ==2120== by 0x4ED31E2: (within /usr/lib/libcurl.so.3.0.0) ==2120== ==2120== Conditional jump or move depends on uninitialised value(s) ==2120== at 0x4010B04: (within /lib/ld-2.3.6.so) ==2120== by 0x4006CB6: (within /lib/ld-2.3.6.so) ==2120== by 0x51FF260: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x51FECF7: _dl_open (in /lib/libc-2.3.6.so) ==2120== by 0x5201497: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x52014E1: __libc_dlopen_mode (in /lib/libc-2.3.6.so) ==2120== by 0x51DC456: __nss_lookup_function (in /lib/libc-2.3.6.so) ==2120== by 0x51B6FCE: (within /lib/libc-2.3.6.so) ==2120== by 0x51B7C06: getaddrinfo (in /lib/libc-2.3.6.so) ==2120== by 0x4ED31E2: (within /usr/lib/libcurl.so.3.0.0) ==2120== ==2120== Conditional jump or move depends on uninitialised value(s) ==2120== at 0x4010C61: (within /lib/ld-2.3.6.so) ==2120== by 0x4006E47: (within /lib/ld-2.3.6.so) ==2120== by 0x51FF260: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x51FECF7: _dl_open (in /lib/libc-2.3.6.so) ==2120== by 0x5201497: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x52014E1: __libc_dlopen_mode (in /lib/libc-2.3.6.so) ==2120== by 0x51DC456: __nss_lookup_function (in /lib/libc-2.3.6.so) ==2120== by 0x51B6FCE: (within /lib/libc-2.3.6.so) ==2120== by 0x51B7C06: getaddrinfo (in /lib/libc-2.3.6.so) ==2120== by 0x4ED31E2: (within /usr/lib/libcurl.so.3.0.0) ==2120== ==2120== Invalid read of size 8 ==2120== at 0x4010C54: (within /lib/ld-2.3.6.so) ==2120== by 0x4008D38: (within /lib/ld-2.3.6.so) ==2120== by 0x4004CF2: (within /lib/ld-2.3.6.so) ==2120== by 0x4006D6C: (within /lib/ld-2.3.6.so) ==2120== by 0x51FF260: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x51FECF7: _dl_open (in /lib/libc-2.3.6.so) ==2120== by 0x5201497: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x52014E1: __libc_dlopen_mode (in /lib/libc-2.3.6.so) ==2120== by 0x51DC456: __nss_lookup_function (in /lib/libc-2.3.6.so) ==2120== by 0x51B6FCE: (within /lib/libc-2.3.6.so) ==2120== Address 0x5F096F0 is 16 bytes inside a block of size 23 alloc'd ==2120== at 0x4A1B858: malloc (vg_replace_malloc.c:149) ==2120== by 0x4007113: (within /lib/ld-2.3.6.so) ==2120== by 0x51FF260: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x51FECF7: _dl_open (in /lib/libc-2.3.6.so) ==2120== by 0x5201497: (within /lib/libc-2.3.6.so) ==2120== by 0x400B7D0: (within /lib/ld-2.3.6.so) ==2120== by 0x52014E1: __libc_dlopen_mode (in /lib/libc-2.3.6.so) ==2120== by 0x51DC456: __nss_lookup_function (in /lib/libc-2.3.6.so) ==2120== by 0x51B6FCE: (within /lib/libc-2.3.6.so) ==2120== by 0x51B7C06: getaddrinfo (in /lib/libc-2.3.6.so) ==2120== by 0x4ED31E2: (within /usr/lib/libcurl.so.3.0.0) ... ==2120== ==2120== IN SUMMARY: 6 errors from 5 contexts (suppressed: 9 from 1) ==2120==