Bug#349453: memprof hangs just after executing profiled app

[Emilian Nowak <emil5@go2.pl>]

On 2006-01-22 (sunday), at Justin Pryzby write:

> > Oki - I will try rebuilding it and some debugging.
> Ok, need any help?
Hmm... How should I debug that. I stareded this non-stripped memproof then I
selected some program for memproofing. Before executing it I made gdb
--pid=`pidof memproof`
then after exectiing program I made ^C

(gdb) info threads
* 1 Thread -1224037824 (LWP 29858)  0xffffe410 in __kernel_vsyscall ()
(gdb) bt full
#0  0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb744772b in poll () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2  0xb74f2dbc in g_main_context_check () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#3  0xb74f32c7 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#4  0xb7a723a1 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#5  0x0805b6d1 in main (argc=97, argv=0x61) at main.c:1811
	memprof_popt_options = {{longName = 0x80d429a "follow-fork", shortName
= 0 '\0', argInfo = 0, arg = 0x80ebc64, val = 0, descrip = 0x80d4680 "Create
new windows for forked processes", argDescrip = 0x0}, {longName = 0x80d42a6
"follow-exec", shortName = 0 '\0', argInfo = 0, arg = 0x80ebc60, val = 0,
descrip = 0x80d46a8 "Retain windows for processes after exec()", argDescrip =
0x0}, {longName = 0x0, shortName = 0 '\0', argInfo = 0, arg = 0x0, val = 0,
descrip = 0x0, argDescrip = 0x0}} ctx = (poptContext) 0x80face0 program =
<value optimized out> startup_args = <value optimized out> initial_window =
(ProcessWindow *) 0x814b190 (gdb) 

and console output:
$ memprof
memintercept (29984): _MEMPROF_SOCKET = /tmp/memprof.r4dUsa
memintercept (29984): New process, operation = NEW, old_pid = 0

So there is nothing interesting here besides main function has argc=97, but I
started it with no arguments - probably it should be argc=1 

> What kernel version?
2.6.15-1-686