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From Rob Hartill <r...@imdb.com>
Subject Re: [BUG]: "httpd children dump core on SIGSEGV" on HPUX
Date Tue, 14 Jan 1997 19:03:07 GMT

Hi,

Thanks for all the information. I'll pass it on to the developers.

cheers,
rob

On Tue, 14 Jan 1997 adrian@virginia.edu wrote:

> Submitter: adrian@virginia.edu
> Operating system: HPUX, version: 10.10
> Version of Apache Used: 1.2b4
> Extra Modules used: only stock modules
> URL exhibiting problem: 
> 
> Symptoms:
> --
> The children for the httpd dump core on SIGSEGV
> regularly.  In 24 hours, 41 children dumped core.
> 
> --
> 
> Backtrace:
> --
> >>> commentary at end <<<
> 
> (gdb) core core
> Core was generated by `httpd'.
> Program terminated with signal 6, Aborted.
> warning: The shared libraries were not privately mapped; setting a
> breakpoint in a shared library will not work until you rerun the program.
> 
> Reading symbols from /usr/local/sbin/httpd...done.
> Reading symbols from /usr/lib/libc.1...done.
> Reading symbols from /usr/lib/libdld.1...done.
> #0  0xc01287a8 in _kill ()
> (gdb) backtrace
> #0  0xc01287a8 in _kill ()
> #1  0xc00b3944 in _raise ()
> #2  0xc007cb08 in abort ()
> #3  0x14f00 in seg_fault () at http_main.c:1167
> #4  <signal handler called>
> #5  0x15c90 in child_main (child_num_arg=
> Cannot access memory at address 0x6ffdc.
> ) at http_main.c:1547
> Cannot access memory at address 0x6ffec.
> (gdb) 
> 
> >>> commentary <<<
> 
> The fault is at http_main.c:1548:
> 
> 	clen=sizeof(sa_client);
> 
> The problem appears to be that sa_client does not
> have a valid address.  Why this is necessary is 
> beyond me.  gcc should be calculating the sizeof
> value at compile time.  This makes me suspect it
> is a compiler bug.
> 
> 	FYI, I am using gcc-2.7.2.1 and I get the
> same results whether I compile with or without
> debugging info.
> 
> --

--
Rob Hartill.       Internet Movie Database Ltd.    http://www.imdb.com/  


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