From: "Michael Büsch" <m@bues.ch>
To: Chris Bainbridge <chris.bainbridge@gmail.com>
Cc: Lukas Wunner <lukas@wunner.de>,
linux-pci@vger.kernel.org, linux-wireless@vger.kernel.org,
b43-dev@lists.infradead.org
Subject: Re: [PATCH] PCI: Add Broadcom 4331 reset quirk to prevent IRQ storm
Date: Fri, 1 Apr 2016 06:59:10 +0200 [thread overview]
Message-ID: <20160401065910.71e602b7@wiggum> (raw)
In-Reply-To: <20160331231346.GA7469@localhost>
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On Fri, 1 Apr 2016 00:13:46 +0100
Chris Bainbridge <chris.bainbridge@gmail.com> wrote:
> Should also fix https://bugzilla.kernel.org/show_bug.cgi?id=111781 ?
> Given that this is a serious bug that can corrupt filesystems it would
> be good to see the fix in stable too.
Wow, this is horrible.
This patch should help a bit. But it's probably hard to workaround that
DMA issue completely. There still is a chance of corruption, as soon as
the kernel allocates and uses some memory that the DMA controller still
uses from boot-up before the fixup is applied.
--
Michael
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WARNING: multiple messages have this Message-ID (diff)
From: "Michael Büsch" <m@bues.ch>
To: Chris Bainbridge <chris.bainbridge@gmail.com>
Cc: Lukas Wunner <lukas@wunner.de>,
linux-pci@vger.kernel.org, linux-wireless@vger.kernel.org,
b43-dev@lists.infradead.org
Subject: [PATCH] PCI: Add Broadcom 4331 reset quirk to prevent IRQ storm
Date: Fri, 1 Apr 2016 06:59:10 +0200 [thread overview]
Message-ID: <20160401065910.71e602b7@wiggum> (raw)
In-Reply-To: <20160331231346.GA7469@localhost>
On Fri, 1 Apr 2016 00:13:46 +0100
Chris Bainbridge <chris.bainbridge@gmail.com> wrote:
> Should also fix https://bugzilla.kernel.org/show_bug.cgi?id=111781 ?
> Given that this is a serious bug that can corrupt filesystems it would
> be good to see the fix in stable too.
Wow, this is horrible.
This patch should help a bit. But it's probably hard to workaround that
DMA issue completely. There still is a chance of corruption, as soon as
the kernel allocates and uses some memory that the DMA controller still
uses from boot-up before the fixup is applied.
--
Michael
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next prev parent reply other threads:[~2016-04-01 4:59 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E1akxli-00030z-BC@bombadil.infradead.org>
2016-03-31 23:13 ` [PATCH] PCI: Add Broadcom 4331 reset quirk to prevent IRQ storm Chris Bainbridge
2016-03-31 23:13 ` Chris Bainbridge
2016-04-01 4:59 ` Michael Büsch [this message]
2016-04-01 4:59 ` Michael Büsch
2016-04-01 22:46 ` Lukas Wunner
2016-04-01 22:46 ` Lukas Wunner
2016-04-02 7:30 ` Michael Büsch
2016-04-02 7:30 ` Michael Büsch
2016-04-02 11:40 ` Andrew Worsley
2016-04-03 11:49 ` Lukas Wunner
2016-04-03 11:49 ` Lukas Wunner
2016-04-07 12:04 ` Andrew Worsley
2016-04-07 12:04 ` Andrew Worsley
2016-04-10 10:09 ` Andrew Worsley
2016-04-10 10:09 ` Andrew Worsley
2016-04-12 18:32 ` Lukas Wunner
2016-04-12 18:32 ` Lukas Wunner
2016-04-13 20:42 ` Andrew Worsley
2016-04-13 20:42 ` Andrew Worsley
2016-04-24 17:04 ` Lukas Wunner
2016-04-24 17:04 ` Lukas Wunner
2016-05-23 14:42 ` Lukas Wunner
2016-05-23 14:42 ` Lukas Wunner
2016-05-24 23:38 ` Chris Bainbridge
2016-05-24 23:38 ` Chris Bainbridge
[not found] <E1akxli-00030z-Jz@bombadil.infradead.org>
2016-03-31 19:09 ` Michael Büsch
2016-03-31 19:09 ` Michael Büsch
2016-03-29 18:20 Lukas Wunner
2016-03-31 18:51 ` Rafał Miłecki
2016-03-31 18:51 ` Rafał Miłecki
2016-04-05 19:40 ` Bjorn Helgaas
2016-04-05 19:40 ` Bjorn Helgaas
2016-04-05 19:49 ` Michael Büsch
2016-04-05 19:49 ` Michael Büsch
2016-04-06 13:31 ` Bjorn Helgaas
2016-04-06 13:31 ` Bjorn Helgaas
2016-04-06 15:17 ` Michael Büsch
2016-04-06 15:17 ` Michael Büsch
2016-04-06 21:36 ` Lukas Wunner
2016-04-06 21:36 ` Lukas Wunner
2016-04-05 19:59 ` Matthew Garrett
2016-04-05 19:59 ` Matthew Garrett
2016-04-06 11:28 ` Andrew Worsley
2016-04-06 11:28 ` Andrew Worsley
2016-04-06 21:30 ` Lukas Wunner
2016-04-06 21:30 ` Lukas Wunner
2016-04-06 21:30 ` Lukas Wunner
2016-04-06 22:19 ` Matthew Garrett
2016-04-06 22:19 ` Matthew Garrett
2016-04-06 22:19 ` Matthew Garrett
2016-04-09 12:00 ` Matt Fleming
2016-04-09 12:00 ` Matt Fleming
2016-04-24 16:58 ` Lukas Wunner
2016-04-24 16:58 ` Lukas Wunner
-- strict thread matches above, loose matches on Subject: below --
2016-03-29 17:46 Lukas Wunner
2016-03-29 17:46 ` Lukas Wunner
2016-03-29 17:41 Lukas Wunner
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