Re: testsuite errors on Red Hat 8.0

Elena Zannoni
2003-04-16T14:21:51Z

Daniel Jacobowitz writes:
> On Tue, Apr 15, 2003 at 09:27:32PM -0700, David Carlton wrote:
> > On Wed, 16 Apr 2003 00:11:46 -0400, Daniel Jacobowitz <drow@mvista.com> said:
> >
> > >> and in gdb.threads/pthreads.exp, I get:
> > >>
> > >> FAIL: gdb.threads/pthreads.exp: check backtrace from main thread
> > >> FAIL: gdb.threads/pthreads.exp: apply backtrace command to all three threads
> >
> > > These I'd definitely like to see the log for.
> >
> > I'll put it after my signature.
>
>
> > thread apply 1 backtrace
> >
> > Thread 1 (Thread 16384 (LWP 14967)):
> > #0 0x4013a816 in nanosleep () from /lib/libc.so.6
> > #1 0x00000000 in ?? ()
> > 51 if (verbose) printf("common_routine (%d)\n", arg);
> > (gdb) FAIL: gdb.threads/pthreads.exp: check backtrace from main thread
>
> We can no longer backtrace out of nanosleep on your system, if we ever
> could.
>
> The possible fixes:
> - adding unwind info to glibc syscall stubs and making gdb use it
> - synthesizing unwind info when we recognize a syscall stub and using
> it
> - improving the prologue analyzer until it works for this function

he he he...See my posting about how bad this problem is going to bite
us for NPTL kernels. About this particual problem, RH 8.0 doesn't have
NPTL, but there could be some other interesting kernel 'feature' going
on.

elena

>
> --
> Daniel Jacobowitz
> MontaVista Software Debian GNU/Linux Developer