[PATCH] PCI: Add Broadcom 4331 reset quirk to prevent IRQ storm

Michael Büsch m at bues.ch
Thu Mar 31 21:59:10 PDT 2016


On Fri, 1 Apr 2016 00:13:46 +0100
Chris Bainbridge <chris.bainbridge at 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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