[Openais] Re: openais segfault

Mark Haverkamp markh at osdl.org
Wed Apr 5 14:32:52 PDT 2006


On Wed, 2006-04-05 at 14:06 -0700, Steven Dake wrote:
> These toolchains work:
> [root at shih openais]# gcc --version
> gcc (GCC) 3.4.5 20051201 (Red Hat 3.4.5-2)
> 
> root at slowpoke:/s/test-for-mark/exec# gcc --version
> gcc (GCC) 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu9)
> 
> I'll install fc5 on one of my test machines.  Please still try the patch
> I previously sent it may give us some more info.

Something about your printf statements in lcr_ifact.c eliminates the
segfault :-)

Mark.


> 
> Regards
> -steve
> 
> On Wed, 2006-04-05 at 13:55 -0700, Mark Haverkamp wrote:
> > On Wed, 2006-04-05 at 13:19 -0700, Mark Haverkamp wrote:
> > > On Wed, 2006-04-05 at 12:11 -0700, Steven Dake wrote:
> > > > Take out the static inline and give me a backtrace (line 74).  The
> > > > inline isn't showing the true backtrace that I'm interested to see.
> > 
> > Steve,
> > 
> > I just found out a bit of information that may explain why I'm seeing
> > the fault and you are not.  I updated the machine that I build on to FC5
> > a few days ago.  It is using gcc 4.1.0-3.  I recompiled on another
> > machine using an older gcc and aisexec started up OK.  Which gcc are you
> > building with.
> > 
> > Mark.
> > 
> > > 
> > > OK, I removed all the static and inline from lcr_ifact.c functions. My
> > > file has:  
> > > 	unsigned int len;
> > > in function lcr_select_so() at line 74.
> > > 
> > > 
> > > (gdb) r
> > > Starting program: /home/localmarkh/views/svn/openais_work/exec/aisexec
> > > [Thread debugging using libthread_db enabled]
> > > [New Thread -151132480 (LWP 24047)]
> > > 
> > > Program received signal SIGSEGV, Segmentation fault.
> > > [Switching to Thread -151132480 (LWP 24047)]
> > > 0x08065cf7 in lcr_ifact_reference (iface_handle=0xfee32ca0,
> > >     iface_name=0x80685f6 "objdb", version=0, iface=0xfee32c9c, context=0x0)
> > >     at lcr_ifact.c:102
> > > 102                     for (i = 0; i < instance->iface_count; i++) {
> > > 
> > > 
> > > (gdb) bt
> > > #0  0x08065cf7 in lcr_ifact_reference (iface_handle=0xfee32ca0,
> > >     iface_name=0x80685f6 "objdb", version=0, iface=0xfee32c9c, context=0x0)
> > >     at lcr_ifact.c:102
> > > #1  0x0805fd6a in main () at main.c:1179
> > > (gdb)
> > > 
> > > (gdb) p lcr_component_instance_database
> > > $1 = {handle_count = 1, handles = 0x8d784c0, iterator = 1}
> > > (gdb) p instance
> > > $3 = (struct lcr_component_instance *) 0x7e5d55
> > > (gdb) p *instance
> > > $4 = {ifaces = 0x6d675f5f, iface_count = 1935634031, dl_handle =
> > > 0x74726174,
> > >   refcount = 1593859935,
> > >   library_name = "_cxa_finalize\000_Jv_RegisterClasses
> > > \000_nss_files_parse_protoent\000__ctype_b_loc\000__strtoul_internal
> > > \000__rawmemchr\000fopen\000__errno_location\000rewind\000fileno
> > > \000fcntl\000fclose\000_nss_files_setprotoent\000__pthread_mutex_lock
> > > \000_"...}
> > > 
> > > 
> > > > 
> > > > Thanks
> > > > -steve
> > > 
> > > _______________________________________________
> > > Openais mailing list
> > > Openais at lists.osdl.org
> > > https://lists.osdl.org/mailman/listinfo/openais
-- 
Mark Haverkamp <markh at osdl.org>
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