Re: [PATCH 1/2 V2] iommu/amd: Add workaround for ERBT1312

From: Don Dutile
Date: Wed Apr 24 2013 - 09:52:50 EST

On 04/24/2013 06:46 AM, Joerg Roedel wrote:
On Tue, Apr 23, 2013 at 09:22:45AM -0400, Don Dutile wrote:
Given other threads on this mail list (and I've seen crashes with same problem)
where this type of logging during a flood of IOMMU errors will lock up the machine,
is there something that can be done to break the do-while loop after n iterations
have been exec'd, so the kernel can progress during a crash ?

In the case of an IOMMU error flood this loop will only run until the
event-log/ppr-log overflows. So it should not turn into an endless loop.


Thanks for verification.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at