linux-kernel - Re: [RFC] Add Alternative Log Buffer Support for printk Messages

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:	Sat, 31 Jan 2009 11:01:13 +0100
From:	Wolfgang Denk <wd@...x.de>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Grant Erickson <gerickson@...vations.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC] Add Alternative Log Buffer Support for printk Messages

Dear Andrew,

In message <20090130142825.e63ee797.akpm@...ux-foundation.org> you wrote:
> 
> It shouldn't be too hard to cook up some way of copying some data into
> th log buffer before the kernel itself has put anything in there, if
> that's all which is needed.

Agreed, but we also want to get the data back into the shared log
buffer when the system crashes someone presses the reset button. The
log buffer shall survive reboots -that's the basic requirment of the
implementation, and this is what makes it a bit more complicated.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...x.de
Microsoft Multitasking:
                     several applications can crash at the same time.
--
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/