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e071f8cd71
The most important part of this change is that we now instruct PFIFO to drop all pending fetches, rather than attempting to skip a single dword and hope that things would magically sort themselves out - they usually don't, and we end up with PFIFO being completely hung. This commit also adds somewhat more useful logging when these exceptions occur. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>