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From: Joerg Roedel <jroedel@suse.de>
To: xiao jin <jin.xiao@intel.com>
Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
	x86@kernel.org, bp@suse.de, boris.ostrovsky@oracle.com,
	dave.hansen@linux.intel.com, rientjes@google.com,
	imammedo@redhat.com, paulmck@linux.vnet.ibm.com,
	linux-kernel@vger.kernel.org, peterz@infradead.org,
	mingo@kernel.org, yanmin_zhang@linux.intel.com
Subject: Re: [PATCH] smpboot.c: move setup_vector_irq after set_cpu_online
Date: Thu, 2 Jul 2015 08:52:15 +0200	[thread overview]
Message-ID: <20150702065215.GD16233@suse.de> (raw)
In-Reply-To: <1435811074-30062-1-git-send-email-jin.xiao@intel.com>

Hi Jin,

On Thu, Jul 02, 2015 at 12:24:34PM +0800, xiao jin wrote:
> [  106.107851] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
> [  106.116702] IP:
> [  106.118490]  [<ffffffff810044f6>] check_irq_vectors_for_cpu_disable+0x76/0x180

This might be the same issue I fixed with:

	d97eb8966c91 x86/irq: Check for valid irq descriptor in check_irq_vectors_for_cpu_disable()

Can you try whether applying this patch on your kernel fixes your
issue?


Thanks,

	Joerg


  reply	other threads:[~2015-07-02  6:52 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-02  4:24 [PATCH] smpboot.c: move setup_vector_irq after set_cpu_online xiao jin
2015-07-02  6:52 ` Joerg Roedel [this message]
2015-07-02  7:02   ` Xiao, Jin
2015-07-02  9:20     ` Zhang, Yanmin
2015-07-02 12:50       ` Thomas Gleixner
2015-07-03  2:02         ` Xiao, Jin

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