Jens Axboe wrote:
It looks to be extremely rare. Aliases are extremely rare, front merges are rare. And you need both to happen with the details you outlined. But it's a large user base, and we've had 3-4 reports on this in the past months. So it obviously does happen. I could not make it trigger without doctoring the unplug code when I used aio.
Well, not that rare on this particular machine (I had a case where I could reproduce it in less than an hour of normal use previously on this box), and I've had it occur a number of times on my servers, I just never reported it before as I never took the time to set up a serial console and capture the oops.
Here's a fix for it, confirmed.
Shall I leave the other debugging in, apply this and run it for a few hard days? Brad -- "Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." -- Douglas Adams - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
