lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <4724A783.9050400@tiscali.nl>
Date:	Sun, 28 Oct 2007 16:15:15 +0100
From:	Roel Kluin <12o3l@...cali.nl>
To:	lkml <linux-kernel@...r.kernel.org>
Subject: Debugging activated during runtime

Wouldn't it be nice to be able to specify upon loading, or during runtime
to modules whether debug messages should be printed?
- No kernel recompile needed for debugging.
- Less *_DEBUG options required in menuconfig.

How I think this could work:
Add to the module struct a bool to denote debugging state. If set, pr_debug
forwards messages to printk.

Another advantage:
- A module could be loaded after an unexpected conditions (e.g. after a BUG_ON).

Caveats I can see right now:
- For modules often loaded during boot this may not be a good solution.

Alternatively, instead of a bool for the debug state, the module struct could
also get a log-level flag: messages below that level won't be printed.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ