Backtrace not working from within nanosleep

[Richard van der Hoff]

Daniel Jacobowitz wrote:
> On Tue, Mar 06, 2007 at 04:42:17PM +0000, Richard van der Hoff wrote:
>> The stack looks fine - it just looks like gdb can't unwind it. Any ideas
>> what might be the problem here?
>>
>> I have:
>>
>> Linux kernel 2.4.26
>> GNU gdb 6.6
>> gcc (GCC) 3.3.4
>> glibc-2.3.6
> 
> LinuxThreads, presumably, since this is 2.4.x.

Yes, indeed.

> That means it is
> fairly likely that you do not have unwind tables for nanosleep, so GDB
> s unable to reason its way out.
> 
> I believe this is fixed if you use glibc 2.5, but I'm not completely
> sure of that.

Hrm. That's something I can try. I've got a feeling my sysadmin isn't 
going to like the idea of upgrading everything to glibc 2.5, though...

Thanks.