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http://issues.apache.org/bugzilla/show_bug.cgi?id=41748 ------- Additional Comments From [EMAIL PROTECTED] 2007-03-05 07:10 ------- >How would I find the thread that caused the dump? That's a bit tricky. The backtrace you showed was that of the thread that *triggered* the crash. However, see the discussion below: >sig_coredump(sig = 0), line 1050 in "mpm_common.c" >malloc_y.malloc_y(0x2000, 0x0, 0x8, 0x20, 0x0, 0x100fb0f7, 0x100fb0f7, 0x8000) at 0xd03272c4 >malloc_common.malloc_common_53_36(??) at 0xd03248b8 >jk_pool_dyn_alloc() at 0xd106d65c You have a memory corruption problem, since the AIX heap library is crashing. There's no reason to believe that the thread which segfaulted (under control of mod_jk) is the thread which caused the problem. Possibly the AIX heap debugging will help by causing the crash to occur much closer to the point of the problem. Very basic usage is to set export MALLOCTYPE=debug in bin/envvars (I assume you use apachectl to start up; apachectl will read that file) If you get a different traceback when MALLOCTYPE is enabled and the traceback doesn't show the AIX heap library, post the traceback to this PR. Here's more information about malloc debugging: http://publibn.boulder.ibm.com/doc_link/Ja_JP/a_doc_lib/aixprggd/genprogc/debug_malloc.htm To the extent that it is practical, yank any non-httpd-distributed modules from the configuration and try to reproduce. Those which are used less by the overall population of Apache httpd users are more likely suspects. The point that you're using the same binary on 5.2 is an obvious point to consider. It has occasionally been observed that exact same code and configuration bombs on a newer OS level because of OS changes which expose the particular problem, or to allow the problem to be exposed much more frequently. I recall that AIX 5.2 and 5.3 use different heap libraries by default. Exposure of certain types of heap corruption defects is dependent on the heap library implementation. A web search for ->yorktown watson 5.3<- will yield some discussion of the heap library implementations and perhaps a way to switch back and forth for investigation. -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
