From: Jiang Liu <jiang.liu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: "Borislav Petkov" <bp@alien8.de>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Alex Deucher" <alexdeucher@gmail.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"Maling list - DRI developers" <dri-devel@lists.freedesktop.org>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: WARNING: CPU: 4 PID: 863 at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x88/0x90() - evildoer found and neutralized
Date: Tue, 6 Oct 2015 21:13:11 +0800 [thread overview]
Message-ID: <5613C8E7.8000308@linux.intel.com> (raw)
In-Reply-To: <20151005100354.GB12506@8bytes.org>
On 2015/10/5 18:03, Joerg Roedel wrote:
> Hi Jiang,
>
> On Sat, Oct 03, 2015 at 03:36:35PM +0800, Jiang Liu wrote:
>> So to summary, I think we only need following change to fix the
>> regression:
>> int pcibios_alloc_irq(struct pci_dev *dev)
>> {
>> + if (pci_dev_msi_enabled(dev))
>> + return -EBUSY;
>>
>> What do you think?
>
> Yes, that works too and has the added benefit that no driver can attach
> to the iommu device and get in the way of the driver.
>
> Will you send the patch for this change or should I do it?
Hi Joerg,
We are on leave for Chinese National Holiday and has limited
access to my working environment. It would be appreciated if you could
help to send out a patch for it. Otherwise I will send out a patch
within 2-3 days.
Thanks!
Gerry
next prev parent reply other threads:[~2015-10-06 13:13 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-21 13:31 WARNING: CPU: 4 PID: 863 at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x88/0x90() Borislav Petkov
2015-09-22 19:06 ` Borislav Petkov
2015-09-22 19:58 ` Alex Deucher
2015-09-22 20:21 ` Borislav Petkov
2015-09-22 20:54 ` Alex Deucher
2015-09-23 7:25 ` Daniel Vetter
2015-09-23 8:59 ` Borislav Petkov
2015-09-23 14:44 ` Daniel Vetter
2015-09-23 16:06 ` Borislav Petkov
2015-09-23 16:18 ` Borislav Petkov
2015-09-26 16:46 ` WARNING: CPU: 4 PID: 863 at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x88/0x90() - evildoer found and neutralized Borislav Petkov
2015-09-29 8:50 ` Jiang Liu
2015-09-29 10:51 ` Borislav Petkov
2015-09-30 7:45 ` Jiang Liu
2015-09-30 12:44 ` Joerg Roedel
2015-09-30 17:00 ` Jiang Liu
2015-09-30 17:36 ` Borislav Petkov
2015-09-30 18:07 ` Joerg Roedel
2015-10-03 7:36 ` Jiang Liu
2015-10-03 9:35 ` Borislav Petkov
2015-10-05 10:03 ` Joerg Roedel
2015-10-06 13:13 ` Jiang Liu [this message]
2015-10-09 10:24 ` Joerg Roedel
2015-09-30 18:06 ` Joerg Roedel
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