Messages in this thread | | | Date | Wed, 11 Jun 2014 11:36:16 +0200 | From | Stefan Richter <> | Subject | Re: [PATCH v2] firewire: ohci: enable MSI for VIA VT6315 rev 1, drop cycle timer quirk |
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On Jun 11 Stefan Richter wrote: > Nice -- yesterday, just a few days after this patch went into the > mainline, this VT6315 card suddenly stopped to generate any interrupt > while being in use with a soundcard and jackd. Until then it ran > perfectly for many days, with jackd+ffado's combined workload of > AT/AR/IT/IR but also with SBP-2 workloads and one or another other > application as well. > > Now I apparently need to run long-term tests with MSI switched off in order > to find out whether this malfunction is MSI related.
PS, this is the state of the card just now after this failure:
10:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6315 Series Firewire Controller (rev 01) (prog-if 10 [OHCI]) Subsystem: VIA Technologies, Inc. VT6315 Series Firewire Controller Flags: bus master, fast devsel, latency 0, IRQ 74
$ grep "74:" /proc/interrupts 74: 132906417 17969317 15309448 18166551 42716375 33292391 30609551 28301206 PCI-MSI-edge firewire_ohci
I am used to defective MSI support manifesting itself right after driver initialization, not after long periods of use with, say, 319271256 proper interrupts before it goes belly-up. And indeed, the issue with VT6315 rev 0 was an instantaneous malfunction, not a rare and random one (http://linux.derkeiler.com/Mailing-Lists/Kernel/2010-12/msg02301.html). I wonder what's up with my VT6315 rev 1. -- Stefan Richter -=====-====- -==- -=-== http://arcgraph.de/sr/
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