Subject: Broken DDB in 1.4.1?
To: None <port-alpha@netbsd.org>
From: Jeff Roberson <nomad@nop.aliensystems.com>
List: port-alpha
Date: 02/24/2000 16:01:20
Does anyone have any problems using DDB in 1.4.1? I can't generate back
traces no matter what I do. This happens on both a AlphaStation 200
4/233, and a Digital Personal Workstation 500a. Both of them are running
1.4.1. Is this a known issue? Have I misconfigured something? I can
break into DDB just fine through CTRL+ALT+ESC, or the Debugger() function
in the kernel. It works great on my sparc, but unfortunately my sparc is
slow and I don't know sparc assembly well enough to do what I'd like to.
Also on both of these machines gdb behaves poorly. Here's a sample of
that:
#0 0x16029a908 in kill ()
warning: Hit heuristic-fence-post without finding
warning: enclosing function for address 0x1fffff268
This warning occurs if you are debugging a function without any symbols
(for example, in a stripped executable). In that case, you may wish to
increase the size of the search with the `set heuristic-fence-post'
command.
Otherwise, you told GDB there was a function where there isn't one, or
(more likely) you have encountered a bug in GDB.
This happens no matter what I'm debugging. It's rather suspicious to me
that both debuggers are broken in similar ways (no back traces). Any
ideas?
Thanks,
Jeff