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From: Chris Wright <chrisw@sous-sol.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>, Andi Kleen <ak@suse.de>,
	LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Pavel Machek <pavel@ucw.cz>,
	Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Subject: Re: [2.6.23-rc1 REGRESSION] CPU hotplug totally broken on HPC nx6325 (x86_64)
Date: Mon, 30 Jul 2007 18:23:40 -0700	[thread overview]
Message-ID: <20070731012340.GD3673@sequoia.sous-sol.org> (raw)
In-Reply-To: <alpine.LFD.0.999.0707260924150.3442@woody.linux-foundation.org>

* Linus Torvalds (torvalds@linux-foundation.org) wrote:
> On Thu, 26 Jul 2007, Rafael J. Wysocki wrote:
> > On my Turion64-based HPC nx6325 with the 2.6.23-rc1 x86_64 kernel doing
> > 
> > # echo 0 > /sys/devices/system/cpu/cpu1/online
> > 
> > causes the system to crash in a spectacular fashion (call traces going
> > continuously on the console, no reaction to anything except for the power
> > button).  For this reason, suspend and hibernation don't work as well.
> 
> Yeah, I really shouldn't have applied that patch. I didn't notice that it 
> not only cleaned up the direct memcpy's, it also re-introduced the damn 
> broken code that we fixed once already.

This also fixes paravirt patching which was broken when text_poke()
tried to patch the various pv ops in lookup_address.

thanks,
-chris

  parent reply	other threads:[~2007-07-31  1:24 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-26 12:40 Rafael J. Wysocki
2007-07-26 16:43 ` Linus Torvalds
2007-07-26 19:22   ` Rafael J. Wysocki
2007-07-26 19:59     ` Linus Torvalds
2007-07-31  1:23   ` Chris Wright [this message]
2007-07-31  1:50     ` Linus Torvalds
2007-07-31  2:16       ` Chris Wright

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