From: Jiri Kosina <jkosina@suse.cz>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Yinghai Lu <yinghai@kernel.org>,
Harald Arnesen <skogtun.linux@gmail.com>,
Kernel development list <linux-kernel@vger.kernel.org>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Peter Hurley <peter@hurleysoftware.com>,
Alan Stern <stern@rowland.harvard.edu>,
Thomas Meyer <thomas@m3y3r.de>,
Shawn Starr <shawn.starr@rogers.com>,
USB list <linux-usb@vger.kernel.org>,
linux-acpi@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, Daniel Vetter <daniel.vetter@ffwll.ch>,
Imre Deak <imre.deak@intel.com>,
Daniel Kurtz <djkurtz@chromium.org>,
dri-devel@lists.freedesktop.org
Subject: Re: [3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interrupt responses)
Date: Mon, 18 Mar 2013 23:04:21 +0100 (CET) [thread overview]
Message-ID: <alpine.LNX.2.00.1303182301450.9529@pobox.suse.cz> (raw)
In-Reply-To: <20130318191903.GS9021@phenom.ffwll.local>
On Mon, 18 Mar 2013, Daniel Vetter wrote:
> Yep, there's a big comment in the irq handler for that chipset that we
> have a gaping race with when using MSI interrupts. Although the comment
> bodly claims that the race is small enough to avoid the dreaded "nobody
> cared" message. Looks like gmbus is good at hitting that race - on newer
> chips it already brought up a similar race in handling pch interrupts.
I see ... will target my focus in that direction, thanks.
> Can you please give the below patch a whirl? It removes the probably race
> msi race avoidance code and replaces it with the same trick Paulo used to
> fix pch irq handling races.
Unfortunately it didn't change anything, the spurious interrupt report is
still there.
--
Jiri Kosina
SUSE Labs
next prev parent reply other threads:[~2013-03-18 22:04 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-08 19:12 [3.9-rc1] very poor interrupt responses Shawn Starr
2013-03-08 21:33 ` [3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interrupt responses) Peter Hurley
2013-03-09 2:19 ` Alan Stern
2013-03-09 8:53 ` Thomas Meyer
2013-03-09 13:07 ` Peter Hurley
2013-03-13 21:35 ` Jiri Kosina
2013-03-14 14:51 ` Alan Stern
2013-03-14 14:51 ` Alan Stern
2013-03-14 14:56 ` Jiri Kosina
2013-03-14 15:18 ` Alan Stern
2013-03-14 15:18 ` Alan Stern
2013-03-14 15:39 ` Jiri Kosina
2013-03-14 15:47 ` Jiri Kosina
2013-03-14 16:10 ` Alan Stern
2013-03-14 16:10 ` Alan Stern
2013-03-14 16:13 ` Alan Stern
2013-03-14 16:13 ` Alan Stern
2013-03-14 16:09 ` Jiri Kosina
2013-03-14 16:42 ` Peter Hurley
2013-03-14 16:46 ` Rafael J. Wysocki
2013-03-14 17:06 ` Peter Hurley
2013-03-14 17:22 ` Rafael J. Wysocki
2013-03-14 17:26 ` Peter Hurley
2013-03-15 7:59 ` Jiri Kosina
2013-03-15 9:20 ` Harald Arnesen
2013-03-15 13:33 ` Jiri Kosina
2013-03-15 13:33 ` Jiri Kosina
2013-03-15 15:14 ` Jiri Kosina
2013-03-15 19:14 ` Yinghai Lu
2013-03-18 2:41 ` Shawn Starr
2013-03-18 9:12 ` Jiri Kosina
2013-03-18 18:57 ` Yinghai Lu
2013-03-18 22:05 ` Jiri Kosina
2013-03-18 22:50 ` Yinghai Lu
[not found] ` <alpine.LNX.2.00.1303181010080.9529-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
2013-03-18 19:19 ` Daniel Vetter
2013-03-18 19:19 ` Daniel Vetter
2013-03-18 19:57 ` Chris Wilson
2013-03-18 22:04 ` Jiri Kosina [this message]
2013-03-15 15:32 ` Greg KH
2013-03-15 15:37 ` Jiri Kosina
2013-03-15 15:47 ` Greg KH
2013-03-15 16:21 ` Jiri Kosina
2013-03-18 8:21 ` Daniel Vetter
2013-03-18 15:56 ` [PATCH] drm/i915: stop using GMBUS IRQs on Gen4 chips (was Re: [3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interrupt responses)) Jiri Kosina
2013-03-18 17:04 ` Chris Wilson
2013-03-19 8:56 ` Jiri Kosina
2013-03-19 9:03 ` Chris Wilson
2013-03-18 19:21 ` Daniel Vetter
2013-03-18 11:13 ` [PATCH] drm/i915: Flush writes to GMBUS registers Chris Wilson
2013-03-18 11:51 ` Jiri Kosina
2013-03-18 12:48 ` Chris Wilson
2013-03-14 18:48 ` [3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interrupt responses) Yinghai Lu
2013-03-11 3:38 ` [3.9-rc1] very poor interrupt responses Rafael J. Wysocki
2013-03-11 10:09 ` Harald Arnesen
2013-03-11 14:55 ` Rafael J. Wysocki
2013-03-18 7:14 [3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interrupt responses) Thomas Meyer
2013-03-18 7:14 ` Thomas Meyer
2013-03-18 7:14 ` Thomas Meyer
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