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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 41930] - Bus error core dump in memcpy - apr_brigade_write
Date Thu, 22 Mar 2007 20:35:37 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=41930


rpluem@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO




------- Additional Comments From rpluem@apache.org  2007-03-22 13:35 -------
(In reply to comment #0)

Please ensure that you have the gdb macros loaded that are defined in .gdbinit
that is delivered with the sources of httpd (see
http://httpd.apache.org/dev/debugging.html)


> #4  0x00187ff5 in memcpy () from /lib/tls/libc.so.6
> No symbol table info available.
> #5  0x0085fe66 in apr_brigade_write (b=0x9300298, flush=0, ctx=0x0, 
> str=0x8f15d000 <Address 0x8f15d000 out of bounds>, 
>     nbyte=1585) at apr_brigade.c:417
> 	e = (apr_bucket *) 0x9303485
> 	remaining = 2400571392

That looks far too large for me. This could be an indicator for an overflow here.

Please issue:

frame 5
dump_brigade b
dump_bucket e


> 	buf = 
> 0x9303485 "/cmc/entorno/intranetwl8/docroot/INT/componentes/INT_Pla081_CoePerson
> as/0,0,61000_0_0&glo_entorno=dev&glo_portal=INT&idSeccion1=57129&idSeccion2=5713
> 0&idSeccion3=57131&idSeccion4=57132,00.html"
> #6  0x08091021 in core_output_filter (f=0x92febc0, b=0x9320ad8) at core.c:4033
> 	d = (apr_bucket *) 0x9302168
> 	rv = 154149224
> 	more = (apr_bucket_brigade *) 0x0
> 	c = (conn_rec *) 0x92fe828
> 	net = (core_net_rec *) 0x92feb98
> 	ctx = (core_output_filter_ctx_t *) 0x92fecd0
> 	eblock = APR_NONBLOCK_READ
> 	input_pool = (apr_pool_t *) 0x9326fb8

Please issue

frame 6
dump_brigade b
dump_bucket temp
dump_bucket e

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