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Message-ID: <alpine.DEB.2.11.1605241543260.3639@nanos> Date: Tue, 24 May 2016 15:44:21 +0200 (CEST) From: Thomas Gleixner <tglx@...utronix.de> To: Wanpeng Li <kernellwp@...il.com> cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: modify_irte NULL pointer On Sun, 22 May 2016, Wanpeng Li wrote: > [ 39.977778] BUG: unable to handle kernel NULL pointer dereference > at (null) > [ 39.988494] IP: [<ffffffff81560598>] modify_irte+0x58/0x140 > [ 39.996939] PGD cede3067 PUD 2d790067 PMD 0 > [ 40.004087] Oops: 0000 [#1] SMP > > This can be reproduced by adding noapic boot parameter. Hmm. We should not have MSIs and such if apic is disabled. I'll have a look. Thanks, tglx
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