netdev - Re: HPET regression in 2.6.26 versus 2.6.25 -- found another user with the same regression

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>] [day] [month] [year] [list]

Message-ID: <32413.7552.qm@web82108.mail.mud.yahoo.com>
Date:	Thu, 21 Aug 2008 06:33:06 -0700 (PDT)
From:	David Witbrodt <dawitbro@...global.net>
To:	Ilpo Järvinen <ilpo.jarvinen@...sinki.fi>
Cc:	Yinghai Lu <yhlu.kernel@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Vivek Goyal <vgoyal@...hat.com>,
	Bill Fink <billfink@...dspring.com>,
	linux-kernel@...r.kernel.org,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, netdev <netdev@...r.kernel.org>
Subject: Re: HPET regression in 2.6.26 versus 2.6.25 -- found another user with the same regression



> > Please advise me on how you would like me to handle 2.6.27 kernels.
> > If I use your patch on 2.6.27-rc3, the message scroll off the 80x25 
> > screen before I can see them... 
> 
> Couldn't you play with CONFIG_BOOT_PRINTK_DELAY?

Thanks for this!  I am not a developer, so I am not familiar with all
of the little tweaks available in the kernel configs -- I've probably
seen this dozens of times, but ignored it because I wasn't debugging.

Now that I _am_ debugging, I wish I had paid more attention.

When I tried it, my kernel hung much earlier in the boot process.  The
help text for CONFIG_BOOT_PRINTK_DELAY even mentions that this can be
a problems on SMP systems, and that is exactly what I have.

Bummer.


Thanks though,
Dave W.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html