linux-kernel - Re: [PATCH 0/3] dyndbg: dev

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-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 20 Jul 2012 16:38:58 -0400
From:	Jason Baron <jbaron@...hat.com>
To:	Jim Cromie <jim.cromie@...il.com>, kay@...y.com
Cc:	linux-kernel@...r.kernel.org, joe@...ches.com, greg@...ah.com
Subject: Re: [PATCH 0/3] dyndbg: dev_dbg bugfix + 2 trivials

On Thu, Jul 19, 2012 at 01:46:19PM -0600, Jim Cromie wrote:
> 3 patches here, 1st is bugfix, others are trivial.
> 
> 1- fix __dev_printk, which broke dev_dbg() prefix under CONFIG_DYNAMIC_DEBUG.
> 

Patch looks good, and would be really nice to get into 3.5. Kay, are you
ok with this patch? 

> 2- change dyndbg prefix interfield separator from ':' to '.'
> 
> for example (output from test-code, not submitted):
> r8169 0000:02:00.0: r8169.rtl_init_one: set-drvdata pdev:ffff880223041000 dev:ffff880220d6a000
> hwmon hwmon1: k10temp.k10temp_probe.180: set-drvdata pdev:ffff88022303d000 dev:ffff8801dfd2a000
> 
> This improves usability of cut -d: <logfile> for pr_debug() messages,
> as field position is less volatile with various uses of dyndbg flags.
> Its not perfect:
> - dev_dbg on net-devices adds several more colons,
>   but this doesnt vary with dyndbg flags. 
> - dyndbg=+pfmlt still adds a field vs dyndbg==p (ie no prefix)
> - pr_fmt() commonly adds another colon (unchanged with this patch)

As you suggest in the patch, changing the delimiter to a non-colon
character such as ',' would resolve these cases? 

>   
> 3- trivial var name change in lib/dynamic_debug.c
> 
> 
> Please drop or apply 2,3 as you prefer.

2,3 are nice, but as you suggest I think we want to separate them from
patch 1, which is a bugfix for 3.5.

Thanks,

-Jason
--
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/