On 16 April 2015 at 18:57, Dorian Gray <yourfavouritegod@xxxxxxxxx> wrote: > On 16 April 2015 at 16:24, Suman Tripathi <stripathi@xxxxxxx> wrote: >> Try increasing the SWIOTLB size to 128MB .Default is 64MB. > > Ok, so I'm back to k3.18.7 (default in the latest Fatdog), although > I'm not sure what should be the exact value of swiotlb boot param? > Got totally mixed results from uncle Google - some says the unit is in > MiB, some that it's 4k pages and another that 128MiB = 65536, so I > played it safe and used swiotlb=131072. > Is this correct? > It may take a few days, but I'll let you know if it worked (or for how > long, if not). I was running 3.18.7 + swiotlb=131072 + 2 external drives plugged-in and mounted for about 18 hours straight. The error didn't show up. Well, I would run it a little longer, but I had to restart X and while doing so, the system crashed for an unknown reason. Anyway, this seems to be quite reliable workaround - at least I can _use_ kernels newer than 3.17.8, because with that bug, popping up after a couple of hours of uptime, it was a total show stopper to me. Thanks! Jake -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
