From: Ingo Molnar <mingo@elte.hu>
To: Mike Travis <travis@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/1] x86: fix remove cpu_pda table patch
Date: Mon, 28 Apr 2008 23:45:41 +0200 [thread overview]
Message-ID: <20080428214541.GA16153@elte.hu> (raw)
In-Reply-To: <20080428210906.348866000@polaris-admin.engr.sgi.com>
* Mike Travis <travis@sgi.com> wrote:
> [Ingo - please replace "PATCH 07/11" with this one.]
>
> * Remove 544k bytes from the kernel by removing the boot_cpu_pda
> array from the data section and allocating it during startup.
>
> Fixed panic in setup_per_cpu_areas when HOTPLUG_CPU not set.
>
> For inclusion into sched-devel/latest tree.
sched-devel.git randconfig testing found another crash with your queue:
[ 0.111060] Brought up 1 CPUs
[ 0.111986] Total of 1 processors activated (4022.73 BogoMIPS).
[ 0.112987] Testing NMI watchdog ... <1>BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
[ 0.114982] IP: [<ffffffff8180d4a0>] check_nmi_watchdog+0xb0/0x210
[ 0.114982] PGD 0
[ 0.114982] Oops: 0000 [1] SMP
[ 0.114982] CPU 0
[............]
http://redhat.com/~mingo/misc/config-Mon_Apr_28_23_25_25_CEST_2008.bad
http://redhat.com/~mingo/misc/log-Mon_Apr_28_23_25_25_CEST_2008.bad
Ingo
next prev parent reply other threads:[~2008-04-28 21:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-28 21:09 [PATCH 0/1] x86: fix remove cpu_pda table patch Mike Travis
2008-04-28 21:09 ` [PATCH 1/1] x86: remove static boot_cpu_pda array v2 Mike Travis
2008-04-28 21:45 ` Ingo Molnar [this message]
2008-04-29 16:07 ` [PATCH 0/1] x86: fix remove cpu_pda table patch Mike Travis
2008-04-29 17:38 ` Mike Travis
2008-04-29 18:53 ` Mike Travis
2008-04-29 21:44 ` Ingo Molnar
2008-04-30 6:04 ` Ingo Molnar
2008-04-30 14:15 ` Mike Travis
2008-04-30 15:02 ` [PATCH 1/1] x86: leave initial __cpu_pda array in place until cpus are booted Mike Travis
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