Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

when looking through log for old messages I can see that there are kernel problems before with extent tree while trying to create snapshots: Jan 23 05:00:02 server kernel: #011#011tree block backref root 7 Jan 23 05:00:02 server kernel: #011item 108 key (12288467451904 169 0) itemoff 12677

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

Anyone ? On 18 Feb 2017, at 16:44, Tomasz Kusmierz wrote: So Qu, currently my situation is that: I've tried to go btrfs scan --repair, and it did relair some stuff is qgroup's ... then tried to mont it and, surprise surpeire system locked out in 20 seconds. Reboot,

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

So Qu, currently my situation is that: I've tried to go btrfs scan --repair, and it did relair some stuff is qgroup's ... then tried to mont it and, surprise surpeire system locked out in 20 seconds. Reboot, again scan --repair = a lot of missing back pointers were repaired and system is

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

Thanks Qu, Just before I’ll go and accidentally mess up this FS more - I’ve mentioned originally that this problem started with FS not being able to create a snapshot ( it would get remounted RO automatically ) for about a month, and when I’ve realised that there is a problem like that I’ve

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

At 02/15/2017 10:11 PM, Tomasz Kusmierz wrote: So guys, any help here ? I’m kinda stuck now with system just idling and doing nothing while I wait for some feedback ... Sorry for the late reply. Busying debugging a kernel bug. On 14 Feb 2017, at 19:38, Tomasz Kusmierz

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

So guys, any help here ? I’m kinda stuck now with system just idling and doing nothing while I wait for some feedback ... > On 14 Feb 2017, at 19:38, Tomasz Kusmierz wrote: > > [root@server ~]# btrfs-show-super -af /dev/sdc > superblock: bytenr=65536, device=/dev/sdc >

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

[root@server ~]# btrfs-show-super -af /dev/sdc superblock: bytenr=65536, device=/dev/sdc - csum_type 0 (crc32c) csum_size 4 csum0x17d56ce0 [match] bytenr 65536 flags

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

At 02/14/2017 08:23 AM, Tomasz Kusmierz wrote: Forgot to mention: btrfs inspect-internal dump-super -af /dev/sdc Your btrfs-progs is somewhat old, which doesn't integrate dump super into inspect-internal. In that case, you can use btrfs-show-super -af instead. Thanks, Qu btrfs

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

Forgot to mention: btrfs inspect-internal dump-super -af /dev/sdc btrfs inspect-internal: unknown token 'dump-super' usage: btrfs inspect-internal btrfs inspect-internal inode-resolve [-v] Get file system paths for the given inode btrfs inspect-internal logical-resolve [-Pv]

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

Problem is to send a larger log into this mailing list :/ Anyway: uname -a Linux tevva-server 4.8.7-1.el7.elrepo.x86_64 #1 SMP Thu Nov 10 20:47:24 EST 2016 x86_64 x86_64 x86_64 GNU/Linux cut from messages (bear in mind that this is a single cut with a bit cut from inside of it to fit it in the

Re: FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

At 02/12/2017 09:17 AM, Tomasz Kusmierz wrote: Hi all, So my main storage filesystem got some sort of veird corruption (that I can gather). Everything seems to work OK, but when I try to create a snapshot or run balance (no filters) it will get remounted read only. Kernel version please.

FS gives kernel UPS on attempt to create snapshot and after running balance it's unmountable.

Hi all, So my main storage filesystem got some sort of veird corruption (that I can gather). Everything seems to work OK, but when I try to create a snapshot or run balance (no filters) it will get remounted read only. Fun part is that balance seems to be running even on read only FS, and I