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Re: another mysterious segfault


From: Mark Burgess
Subject: Re: another mysterious segfault
Date: Sat, 27 Aug 2005 07:50:26 +0200

Lars - what version are you using? Is it a recent one? (2.1.15 or
later?). Segfault during malloc usually means one of two things:

1) a bug in libc (what OS is this? Some red hat linuxes have old libs
with problems)

2) a bug in the program somewhere else entirely which is hard to find.

Can you provide more info?
Mark

On Fri, 2005-08-26 at 15:57 -0700, Lars Damerow wrote:
> Hi folks,
> 
> I'm trying to track down another mysterious segfault in cfagent. It doesn't
> happen every time I run cfagent, which makes it very frustrating. Here's the
> backtrace:
> 
>     #0  0x00002aaaab3f04c8 in _int_malloc () from /lib64/libc.so.6
>     #1  0x00002aaaab3f1d6b in malloc () from /lib64/libc.so.6
>     #2  0x000000000041d99e in AppendItem (liststart=0x7fffffd8dbe8, 
> itemstring=0x5ece80 "# To use this server type you should add -query host or 
> -indirect host", classes=0x0)
>         at item.c:316
>     #3  0x000000000042274e in LoadItemList (liststart=0x7fffffd8dbe8, 
> file=0x671a30 "/etc/X11/gdm/gdm.conf") at item-file.c:80
>     #4  0x000000000042ed14 in DoEditFile (ptr=0x6719b0, filename=0x671a30 
> "/etc/X11/gdm/gdm.conf") at edittools.c:393
>     #5  0x0000000000430bf8 in WrapDoEditFile (ptr=0x6719b0, filename=0x671a30 
> "/etc/X11/gdm/gdm.conf") at edittools.c:330
>     #6  0x000000000040f75f in EditFiles () at do.c:2257
>     #7  0x0000000000407805 in DoTree (passes=2, info=0x45f5a7 "Main Tree") at 
> cfagent.c:1268
>     #8  0x0000000000408110 in main (argc=4, argv=0x0) at cfagent.c:182
>     #9  0x00002aaaab3a14cc in __libc_start_main () from /lib64/libc.so.6
>     #10 0x00000000004044c9 in _start ()
>     #11 0x00007fffffd8ff58 in ?? ()
>     #12 0x0000000000000000 in ?? ()
> 
> I'm puzzled as to why it's segfaulting during a malloc while reading in that
> file; the only thing of note for the particular line it's reading is that the
> line appears twice in the file.
> 
> Does this sound familiar to anyone?
> 
> thanks,
> lars
> 
> --
> lars damerow
> button pusher
> pixar animation studios
> address@hidden
> 
> Strike while the irony's hot!
> 
> 
> _______________________________________________
> Help-cfengine mailing list
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