linux-kernel - Re: [bug, netconsole, SLUB] BUG skbuff_head

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Message-ID: <20080717235657.GB6833@elte.hu>
Date:	Fri, 18 Jul 2008 01:56:57 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Vegard Nossum <vegard.nossum@...il.com>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	Pekka Enberg <penberg@...helsinki.fi>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison
	overwritten


* Vegard Nossum <vegard.nossum@...il.com> wrote:

> On Thu, Jul 17, 2008 at 11:42 PM, Ingo Molnar <mingo@...e.hu> wrote:
> > With this config:
> >
> >   http://redhat.com/~mingo/misc/config-Thu_Jul_17_20_24_45_CEST_2008.bad
> >
> 
> It doesn't actually work. The config says
> 
>     # head: 088fcf34
> 
> and I checked out this from the tip tree. But kernel-config still
> complains about unknown config options... What went wrong?

that's ok - i've got some local qa helpers that have config options. 

Things like making SMP bootups more likely in randconfig, adding various 
boot parameters to the bootup via .config methods (so that boot 
parameters can be randomized via make randconfig), etc.

these:

  CONFIG_BOOTPARAM_SUPPORT=y
  CONFIG_BOOTPARAM_NO_HZ_OFF=y
  CONFIG_BOOTPARAM_NMI_WATCHDOG_BIT_0=y
  CONFIG_BOOTPARAM_LAPIC=y
  CONFIG_BOOTPARAM_IDLE_MWAIT=y
  CONFIG_BOOTPARAM_NOPAT=y
  CONFIG_BOOTPARAM_NOTSC=y

are equivalent to adding this to the boot line:

   nohz=off nmi_watchdog=1 lapic idle=mwait nopat notsc

although i dont think they are normally material to netconsole workings.

	Ingo
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