Hello, I have kubuntu 14.10 with 3.17.1 kernel and 3.17 tools the setup of data pool was btrfs raid1, 3x6TB + 1x3TB. Time has come to replace old 3TB with new 3TB. As usual I added new device and deleted the old one, system started relocating chunks and I went to bed... In the morning I was greeted with pool in RO mode and segmentation fault in dmesg, see here http://pastebin.com/vcr7qagB After some nail biting and reisub I found data to be ok and pool worked normally in RW. Pheww. By output in dmesg and in btrfs fi show I can see the new device has 336GBs used so the problem occurred after some data copying. I ran 7 hour SMART extensive test on new device and it came out perfectly ok. Then I tried disconnecting old drive in attempt to do delete missing. Unfortunately this also led to segmentation fault almost immediately after firing the command (didn't make a copy of that one though) All three 6TB drives seem to be fine by quick SMART checks.
So now I'm running in degraded mode, unable to delete missing device. Options I see here is to attempt rebalance which I'm rather affraid of in this state. Or upgrade kernel to 3.18.x in hope the problem's been already fixed... Any other thoughts? Regards, Robert -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
