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

Hi,

On Mon, 17 Aug 2009, Johannes Schindelin wrote:

On Mon, 17 Aug 2009, Ali Polatel wrote:

quoted

Here's what gdb has to say about it:

[...]

Here's what valgrind has to say about it (with a current 'next' + 
patches):

==25434== Invalid read of size 8
==25434==    at 0x407433: process_object_response (http-walker.c:91)
==25434==    by 0x405713: finish_active_slot (http.c:657)
==25434==    by 0x40448F: process_curl_messages (http.c:119)
==25434==    by 0x40546A: step_active_slots (http.c:571)
==25434==    by 0x4080E8: fetch_object (http-walker.c:476)
==25434==    by 0x408316: fetch (http-walker.c:526)
==25434==    by 0x42876C: loop (walker.c:176)
==25434==    by 0x428C65: walker_fetch (walker.c:287)
==25434==    by 0x40401F: main (remote-curl.c:111)

Oops, forgot the more important part:

==25434==  Address 0x87a7bd0 is 0 bytes inside a block of size 64 free'd
==25434==    at 0x4C265AF: free (vg_replace_malloc.c:323)
==25434==    by 0x4075F5: release_object_request (http-walker.c:128)
==25434==    by 0x408022: abort_object_request (http-walker.c:452)
==25434==    by 0x4080D7: fetch_object (http-walker.c:470)
==25434==    by 0x408316: fetch (http-walker.c:526)
==25434==    by 0x42876C: loop (walker.c:176)
==25434==    by 0x428C65: walker_fetch (walker.c:287)
==25434==    by 0x40401F: main (remote-curl.c:111)

Seems that an object request is aborted, but the slot, and therefore the 
callback, is called nevertheless.  Tay, does that ring a bell?

Ciao,
Dscho