On Fri, Jun 13, 2014 at 10:58:22AM -0700, Venkatesh Srinivas wrote: > CC-ing stable as 3.14 and 3.15 are affected; a conservative fix is to > enable no_async_abort until the problem is better-understood. No patch attached. Nevermind this is not a consdervative fix, but a band aid. The proper fix is to figure out what's actually going on here. >From your trace above it very much looks like a double completion of some sort. I've looked at the virtio-scsi code a bit, and one odd thing it does that comes in handy here is that it doesn't really use a traditional tag, but rather the address of the scsi command. Knowning that your above traces mean that we are resending a command to the HBA/storage that has a pending abort going on. -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html