Re: Crasher in 4.2.1 - debugging advice needed

Wild guess, but did you load an extension using dl() in the file that crashed? Zeev At 15:23 21/05/2002, Dave Brotherstone wrote:

Hi, I've got a particular script that seg-faults when certain parts of it run (tested with 4.1.0 and 4.2.1, both CGI and Apache module). I've done a back trace, included below. Linux 2.4.18 (Redhat 7.0). I'm not sure what to do next, as if it is something not free'ing properly, or free'ing twice (as hinted in the bt), then are there any ways I can tell where? Many thanks for any pointers, Dave. #0 0x40139566 in chunk_free (ar_ptr=0x401dbce0, p=0x81a5360) at malloc.c:3131 #1 0x40139334 in __libc_free (mem=0x81a5368) at malloc.c:3043 #2 0x80e7d67 in shutdown_memory_manager (silent=0, clean_cache=0)

    at zend_alloc.c:485

#3 0x8062049 in php_request_shutdown (dummy=0x0) at main.c:742 #4 0x80608ff in main (argc=1, argv=0xbffffb34) at cgi_main.c:776 #5 0x400d9b65 in __libc_start_main (main=0x8060610 <main>, argc=1,

    ubp_av=0xbffffb34, init=0x805f000 <_init>, fini=0x8117fbc <_fini>,
    rtld_fini=0x4000df24 <_dl_fini>, stack_end=0xbffffb2c)
    at ../sysdeps/generic/libc-start.c:111

Line 485 of zend_alloc.c is the zend_message_dispatcher line if (!silent) {

         zend_message_dispatcher(ZMSG_MEMORY_LEAK_DETECTED, t);

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