gdb not working with older glibc

[jdavin@cmu.edu]

Hi,

I recently upgraded to glibc 2.3.2 (because I need to run a binary that
required it). I'm running Redhat 7.3, and did the upgrade with rpms for
glibc,glibc-common,glibc-devel,modutils,and binutils.

However, somehow it messed up my gdb such that I can no longer debug
binaries compiled with earlier glibc versions. gdb works fine on binaries
compiled on my system (under glibc 2.3.2 I assume) but gives this on other
binaries:

Program received signal SIG32, Real-time event 32.
0x0811c7f6 in __sigsuspend (set=0xbffff330)
    at ../sysdeps/unix/sysv/linux/sigsuspend.c:45
45      ../sysdeps/unix/sysv/linux/sigsuspend.c: No such file or
directory.
        in ../sysdeps/unix/sysv/linux/sigsuspend.c
Current language:  auto; currently c

I tried upgrading to gdb 5.3, but that didn't work, and then I tried gdb
6.0 but it's still the same. So I assume this is some sort of problem with
my system libraries. But I have no idea how to fix it. There's no
sigsuspend.c on my system ( locate sigsuspend.c turns up nothing).

Anyone have any ideas?

thanks,
John