On Thu, Jun 19, 2014 at 12:42:51AM -0400, Saran Neti wrote: > Hi, > > I have a many identical looking USB drives in two btrfs multi-device > configurations. I was unplugging and replugging a few devices to > identify which physical device belonged to which btrfs filesystem. > Running "btrfs fi show" during this unplugging/replugging business > produced the BUG() stack trace shown below. "btrfs fi show" wouldn't > return and neither would "fdisk -l". When I tried to reboot the > computer, it panicked forcing me to do a hard reset. > > All hard disks are run-of-the-mill Seagate Expansion or Backup Plus > drives. They all work fine (data and SMART) when kernel > detects them at the start. I hit the BUG() twice during > unplugging/replugging them randomly and I think it could've been when > I swapped USB ports for identical drives (model/version etc.) > > If more lspci/lsusb information if needed, let me know. I should be > able to reproduce it again and if needed insert printks and debug on > mainline. > > # uname -a > Linux godel 3.15.1-1-ARCH #1 SMP PREEMPT Tue Jun 17 09:32:20 CEST 2014 > x86_64 GNU/Linux This looks like a scsi bug, can you send this to the linux-scsi@xxxxxxxxxxxxxxx mailing list? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
