Re: off-by-one uncompressed invalid ram_bytes corruptions

2018-05-19 Thread Qu Wenruo
On 2018年05月20日 07:40, Steve Leung wrote: > On 05/17/2018 11:49 PM, Qu Wenruo wrote: >> On 2018年05月18日 13:23, Steve Leung wrote: >>> Hi list, >>> >>> I've got 3-device raid1 btrfs filesystem that's throwing up some >>> "corrupt leaf" errors in dmesg.  This is a uniquified list I've >>> observed

Re: off-by-one uncompressed invalid ram_bytes corruptions

2018-05-19 Thread Steve Leung
On 05/17/2018 11:49 PM, Qu Wenruo wrote: On 2018年05月18日 13:23, Steve Leung wrote: Hi list, I've got 3-device raid1 btrfs filesystem that's throwing up some "corrupt leaf" errors in dmesg.  This is a uniquified list I've observed lately: Evidently I forgot that I added a fourth device to this

Re: BTRFS RAID filesystem unmountable

2018-05-19 Thread Michael Wade
I have let the find root command run for 14+ days, its produced a pretty huge log file 1.6 GB but still hasn't completed. I think I will start the process of reformatting my drives and starting over. Thanks for your help anyway. Kind regards Michael On 5 May 2018 at 01:43, Qu Wenruo

Re: Any chance to get snapshot-aware defragmentation?

2018-05-19 Thread Niccolò Belli
On sabato 19 maggio 2018 01:55:30 CEST, Tomasz Pala wrote: The "defrag only not-snapshotted data" mode would be enough for many use cases and wouldn't require more RAM. One could run this before taking a snapshot and merge _at least_ the new data. snapper users with hourly snapshots will not

Re: Any chance to get snapshot-aware defragmentation?

2018-05-19 Thread Niccolò Belli
On venerdì 18 maggio 2018 20:33:53 CEST, Austin S. Hemmelgarn wrote: With a bit of work, it's possible to handle things sanely. You can deduplicate data from snapshots, even if they are read-only (you need to pass the `-A` option to duperemove and run it as root), so it's perfectly reasonable