Re: cannot mount read-write because of unsupported optional features (2)

ng since I never ran a kernel newer than 4.8... Regards, Tobias 2016-11-01 6:24 GMT+01:00 Qu Wenruo <quwen...@cn.fujitsu.com>: > > > At 11/01/2016 12:46 PM, Tobias Holst wrote: >> >> Hi >> >> I can't mount my boot partition anymore. When I try it by enteri

cannot mount read-write because of unsupported optional features (2)

Hi I can't mount my boot partition anymore. When I try it by entering "mount /dev/sdi1 /mnt/boot/" I get: > mount: wrong fs type, bad option, bad superblock on /dev/sdi1, > missing codepage or helper program, or other error > > In some cases useful info is found in syslog - try >

"parent transid verify failed"

Hi I am getting some "parent transid verify failed"-errors. Is there any way to find out what's affected? Are these errors in metadata, data or both - and if they are errors in the data: How can I find out which files are affected? Regards, Tobias -- To unsubscribe from this list: send the line

Re: [PATCH v4 0/9] Btrfs: free space B-tree

Ah, thanks for the information! Happy testing :) 2015-11-03 19:34 GMT+01:00 Chris Mason <c...@fb.com>: > On Tue, Nov 03, 2015 at 07:13:37PM +0100, Tobias Holst wrote: >> Hi >> >> Anything new on this topic? >> >> I think it would be a great thing and shou

Re: [PATCH v4 0/9] Btrfs: free space B-tree

Hi Anything new on this topic? I think it would be a great thing and should be merged as soon as it is stable. :) Regards, Tobias 2015-10-02 13:47 GMT+02:00 Austin S Hemmelgarn : > On 2015-09-29 23:50, Omar Sandoval wrote: >> >> Hi, >> >> Here's one more reroll of the

Re: "free_raid_bio" crash on RAID6

ted to happen ("some devices missing"). ;) Regards, Tobias 2015-10-18 16:14 GMT+02:00 Philip Seeger <p0h0i0l0...@gmail.com>: > Hi Tobias > > On 07/20/2015 06:20 PM, Tobias Holst wrote: >> >> My btrfs-RAID6 seems to be broken again :( >> >> When read

free_raid_bio crash on RAID6

Hi My btrfs-RAID6 seems to be broken again :( When reading from it I get several of these: [ 176.349943] BTRFS info (device dm-4): csum failed ino 1287707 extent 21274957705216 csum 2830458701 wanted 426660650 mirror 2 then followed by a free_raid_bio-crash: [ 176.349961] [ cut

Re: Uncorrectable errors on RAID6

Message Subject: Re: Uncorrectable errors on RAID6 From: Tobias Holst to...@tobby.eu To: Qu Wenruo quwen...@cn.fujitsu.com Date: 2015年05月29日 10:00 Thanks, Qu, sad news... :-( No, I also didn't defrag with older kernels. Maybe I did it a while ago with 3.19.x, but there was a scrub

checksum verify failed vs. csum failed

Hi Just a question to understand my logs. Doesn't matter where these errors come from, I just want to understand them. What is the difference of these two message types? BTRFS: dm-4 checksum verify failed on 6318462353408 wanted 25D94CD6 found 8BA427D4 level 1 vs. BTRFS warning (device

Re: Uncorrectable errors on RAID6

:00 Qu Wenruo quwen...@cn.fujitsu.com: Original Message Subject: Re: Uncorrectable errors on RAID6 From: Tobias Holst to...@tobby.eu To: Qu Wenruo quwen...@cn.fujitsu.com Date: 2015年05月28日 21:13 Ah it's already done. You can find the error-log over here: https://paste.ee/p

Re: Uncorrectable errors on RAID6

+02:00 Tobias Holst to...@tobby.eu: Hi Qu, no, I didn't run a replace. But I ran a defrag with -clzo on all files while there has been slightly I/O on the devices. Don't know if this could cause corruptions, too? Later on I deleted a r/o-snapshot which should free a big amount of storage

Re: Uncorrectable errors on RAID6

2015-05-28 4:49 GMT+02:00 Qu Wenruo quwen...@cn.fujitsu.com: Original Message Subject: Uncorrectable errors on RAID6 From: Tobias Holst to...@tobby.eu To: linux-btrfs@vger.kernel.org linux-btrfs@vger.kernel.org Date: 2015年05月28日 10:18 Hi I am doing a scrub on my 6

Uncorrectable errors on RAID6

Hi I am doing a scrub on my 6-drive btrfs RAID6. Last time it found zero errors, but now I am getting this in my log: [ 6610.888020] BTRFS: checksum error at logical 478232346624 on dev /dev/dm-2, sector 231373760: metadata leaf (level 0) in tree 2 [ 6610.888025] BTRFS: checksum error at logical

Re: Repair broken btrfs raid6?

@oracle.com: On Fri, Feb 13, 2015 at 10:54:22PM +0100, Tobias Holst wrote: It's me again. I just found out why my system crashed during the back up. I don't know what it means, but maybe it helps you? The warning means somehow checksum becomes inconsistent with file extents, but no clear clues

Re: Repair broken btrfs raid6?

2015-02-13 9:06 GMT+01:00 Liu Bo bo.li@oracle.com: On Fri, Feb 13, 2015 at 12:22:16AM +0100, Tobias Holst wrote: Hi I don't remember the exact mkfs.btrfs options anymore but ls /sys/fs/btrfs/[UUID]/features/ shows the following output: big_metadata compress_lzo extended_iref

Re: Repair broken btrfs raid6?

] extent_readpages+0x15e/0x1a0 [btrfs] [c04eb400] ? btrfs_submit_direct+0x1b0/0x1b0 [btrfs] [c04e771f] btrfs_readpages+0x1f/0x30 [btrfs] [c04dc969] ? btrfs_congested_fn+0x49/0xb0 [btrfs] Regards, Tobias 2015-02-13 19:26 GMT+01:00 Tobias Holst to...@tobby.eu: 2015-02-13 9:06 GMT+01:00

Re: Repair broken btrfs raid6?

system, if it's not repairable. Regards, Tobias 2015-02-12 10:16 GMT+01:00 Liu Bo bo.li@oracle.com: On Wed, Feb 11, 2015 at 03:46:33PM +0100, Tobias Holst wrote: Hmm, it looks like it is getting worse... Here are some parts of my syslog, including two crashed btrfs-threads: So I am

Re: Repair broken btrfs raid6?

dm-5): Skipping commit of aborted transaction. BTRFS: error (device dm-5) in cleanup_transaction:1670: errno=-5 IO failure Any thoughts? Would it help to unplug the dm5-device which seems to be causing this errors and then balance the array? Regards, Tobias 2015-02-09 23:45 GMT+01:00 Tobias

Re: Repair broken btrfs raid6?

2015-02-10 8:17 GMT+01:00 Kai Krakow hurikha...@gmail.com: Tobias Holst to...@tobby.eu schrieb: and btrfs scrub status /[device] gives me the following output: scrub status for [UUID] scrub started at Mon Feb 9 18:16:38 2015 and was aborted after 2008 seconds total bytes scrubbed: 113.04GiB

btrfs features

Hi I am just looking at the features enabled on my btrfs volume. ls /sys/fs/btrfs/[UUID]/features/ shows the following output: big_metadata compress_lzo extended_iref mixed_backref raid56 So big_metadata means I am not using skinny-metadata, compress_lzo means I am using compression.

Repair broken btrfs raid6?

Hi I'm having some trouble with my six-drives btrfs raid6 (each drive encrypted with LUKS). At first: Yes, I do have backups, but it may take at least days, maybe weeks or even some month to restore everything from the (offside) backups. So it is not essential to recover the data, but would be

Re: how to repair a damaged filesystem with btrfs raid5

Hi. There is a known bug when you re-plug in a missing hdd of a btrfs raid without wiping the device before. In worst case this results in a totally corrupted filesystem as it did sometimes during my tests of the raid6 implementation. With raid1 it may just go back in time to the point when you

Re: filesystem corruption

Thank you for your reply. I'll answer in-line. 2014-11-02 5:49 GMT+01:00 Robert White rwh...@pobox.com: On 10/31/2014 10:34 AM, Tobias Holst wrote: I am now using another system with kernel 3.17.2 and btrfs-tools 3.17 and inserted one of the two HDDs of my btrfs-RAID1 to it. I can't add

Re: filesystem corruption

PM, Tobias Holst to...@tobby.eu wrote: Addition: I found some posts here about a general file system corruption in 3.17 and 3.17.1 - is this the cause? Additionally I am using ro-snapshots - maybe this is the cause, too? Anyway: Can I fix that or do I have to reinstall? Haven't touched

filesystem corruption

Hi I was using a btrfs RAID1 with two disks under Ubuntu 14.04, kernel 3.13 and btrfs-tools 3.14.1 for weeks without issues. Now I updated to kernel 3.17.1 and btrfs-tools 3.17. After a reboot everything looked fine and I started some tests. While running duperemover (just scanning, not doing

Re: filesystem corruption

). Regards Tobias 2014-10-31 1:29 GMT+01:00 Tobias Holst to...@tobby.eu: Hi I was using a btrfs RAID1 with two disks under Ubuntu 14.04, kernel 3.13 and btrfs-tools 3.14.1 for weeks without issues. Now I updated to kernel 3.17.1 and btrfs-tools 3.17. After a reboot everything looked fine

Re: general thoughts and questions + general and RAID5/6 stability?

If it is unknown, which of these options have been used at btrfs creation time - is it possible to check the state of these options afterwards on a mounted or unmounted filesystem? 2014-09-23 15:38 GMT+02:00 Austin S Hemmelgarn ahferro...@gmail.com: Well, running 'mkfs.btrfs -O list-all' with

Re: Blocked tasks on 3.15.1

Hi Is there anything new on this topic? I am using Ubuntu 14.04.1 and experiencing the same problem. - 6 HDDs - LUKS on every HDD - btrfs RAID6 over this 6 crypt-devices No LVM, no nodatacow files. Mount-options: defaults,compress-force=lzo,space_cache With the original 3.13-kernel

Re: How to handle a RAID5 arrawy with a failing drive? - raid5 mostly works, just no rebuilds

I think after the balance it was a fine, non-degraded RAID again... As far as I remember. Tobby 2014-03-20 1:46 GMT+01:00 Marc MERLIN m...@merlins.org: On Thu, Mar 20, 2014 at 01:44:20AM +0100, Tobias Holst wrote: I tried the RAID6 implementation of btrfs and I looks like I had the same

Re: Massive BTRFS performance degradation

2014-03-09 18:36 GMT+01:00 Austin S Hemmelgarn ahferro...@gmail.com: On 03/09/2014 04:17 AM, Swâmi Petaramesh wrote: Le dimanche 9 mars 2014 08:48:20 KC a écrit : I am experiencing massive performance degradation on my BTRFS root partition on SSD. BTW, is BTRFS still a SSD-killer ? It had