[opensuse] Anybody know what the linux equivalent of softice is?
Hi everyone, I've been searching for an easy way of debugging the kernel and all I can find is kdb which doesn't seem to have a suse version anyway. There must be a simpler way of debugging the kernel in realtime. I'm specifically looking for break on exception or better still trigger a backtrace. Thanks Dave Plater -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dave Plater wrote:
Hi everyone, I've been searching for an easy way of debugging the kernel and all I can find is kdb which doesn't seem to have a suse version anyway. There must be a simpler way of debugging the kernel in realtime. I'm specifically looking for break on exception or better still trigger a backtrace.
I'm not sure what you mean here. When KDB is enabled, it's built into the kernel. There's no supporting userspace. We only enable it in the - -debug flavor of the kernel, but I'm looking into why we don't build it into all flavors and only enable it by default on the -debug flavor. KDB will be invoked on panic, or when you hit the pause button on the keyboard or control-a on a serial console. - -Jeff - -- Jeff Mahoney SUSE Labs -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFH+7hGLPWxlyuTD7IRAq5YAJ9dG3c8y5TrLVPOnluD7q1m9nfhqgCfeVVv qt2GFVaAAcsQ3Jwihm8Yjzc= =t82H -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Jeff Mahoney wrote:
Dave Plater wrote:
Hi everyone, I've been searching for an easy way of debugging the kernel and all I can find is kdb which doesn't seem to have a suse version anyway. There must be a simpler way of debugging the kernel in realtime. I'm specifically looking for break on exception or better still trigger a backtrace.
I'm not sure what you mean here. When KDB is enabled, it's built into the kernel. There's no supporting userspace. We only enable it in the -debug flavor of the kernel, but I'm looking into why we don't build it into all flavors and only enable it by default on the -debug flavor. KDB will be invoked on panic, or when you hit the pause button on the keyboard or control-a on a serial console.
-Jeff
Hi Jeff thanks for the reply. I discovered the kdb enable at the bottom of kernel hacking but I haven't found much useful info on using it. Can you set a tracepoint, for instance, on a machine exception? Thanks again Dave Plater -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Dave Plater wrote:
Jeff Mahoney wrote:
Dave Plater wrote:
Hi everyone, I've been searching for an easy way of debugging the kernel and all I can find is kdb which doesn't seem to have a suse version anyway. There must be a simpler way of debugging the kernel in realtime. I'm specifically looking for break on exception or better still trigger a backtrace.
I'm not sure what you mean here. When KDB is enabled, it's built into the kernel. There's no supporting userspace. We only enable it in the -debug flavor of the kernel, but I'm looking into why we don't build it into all flavors and only enable it by default on the -debug flavor. KDB will be invoked on panic, or when you hit the pause button on the keyboard or control-a on a serial console.
-Jeff
Hi Jeff thanks for the reply. I discovered the kdb enable at the bottom of kernel hacking but I haven't found much useful info on using it. Can you set a tracepoint, for instance, on a machine exception?
Why don't you ask on a developer list where the people who are extremely familiar with these things will be the ones reading your question and writing answers. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (3)
-
Dave Plater -
Jeff Mahoney -
Sam Clemens