Re: GDB threading/FP bug

[Kevin Buettner <kevinb@redhat.com>]

On Aug 8,  1:34pm, Andrew Cagney wrote:

> > Some better searching revealed this is a very old bug.  From last
> > year:
> > 
> > http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&th=adfbc404c374e980&seekm=OF36816CDD.AE7D54AF-ONC1256B1F.005622DC%40icos.be&frame=off
> > 
> > I tried running GDB in GDB and I was able to get as far as seeing that
> > the floats seemed to be pushed onto the stack correctly until the
> > thread switch and all the ptrace stuff, but I wasn't totally sure if
> > the bug I was seeing at that point was in the GDB'd GDB or was the
> > same bug in the outter GDB.
> 
> [Mailing list changed to something with less spam :-)]
> 
> As you've discovered, there have been a number of very similar bugs that 
> all involving corrupted FP and threads.  It was thought that fixes for 
> all such bugs were incorporated into both 5.2.* 
> (http://sources.redhat.com/gdb/download/) and the mainline 
> (http://sources.redhat.com/gdb/current/).
> 
> Can you please check that your problem does occur in the latest 
> release/mainline, and if it does, create a bug report using 
> http://sources.redhat.com/gdb/bugs/.

Yes, I thought this bug was fixed too.

FWIW, I just did a build of gdb-5.2.1 on a Red Hat 7.3 machine (x86). 
I wasn't able to reproduce the bug using the test program provided by
Bennet.  (I've also tested the current development sources and, as
expected, don't see the bug there either.)

Kevin