Re: It takes me up to 20 reboots for the system to start sda

Am Fri, 28 Oct 2016 02:21:27 -0600 schrieb Bearcat Şándor : > Thanks for the suggestions Kai. I'm using dracut 044. > > I tried using the rootdelay=2 kernel parameter to little effect other > than slowing down my booting. > > I found this, which may be related: >

Re: It takes me up to 20 reboots for the system to start sda

Am Thu, 27 Oct 2016 19:17:52 -0600 schrieb Bearcat Şándor : > Folks, > > I have a btrfs raid 10 spread out among 4 ssds. The main drive is > sda. When i reboot my system after the kernel loads i see "a start job > is running for dev-sda1.device. I've let this sit for 3

Re: compress=lzo safe to use?

Am Mon, 12 Sep 2016 04:36:07 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > Again, I once thought all this was just the stage at which btrfs was, > until I found out that it doesn't seem to happen if btrfs compression > isn't being used. Something about the way it recovers from checksum

Re: Is stability a joke?

Am Mon, 12 Sep 2016 08:20:20 -0400 schrieb "Austin S. Hemmelgarn" : > On 2016-09-11 09:02, Hugo Mills wrote: > > On Sun, Sep 11, 2016 at 02:39:14PM +0200, Waxhead wrote: > >> Martin Steigerwald wrote: > [...] > [...] > [...] > [...] > >> That is exactly the

Re: Mixing partitioned and non-partitioned discs in a RAID?

Am Tue, 13 Sep 2016 04:07:37 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > Kai Krakow posted on Tue, 13 Sep 2016 00:21:10 +0200 as excerpted: > > > Am Sun, 21 Aug 2016 02:19:33 + (UTC) > > schrieb Duncan <1i5t5.dun...@cox.net>: > > > >>

Re: Mixing partitioned and non-partitioned discs in a RAID?

Am Sun, 21 Aug 2016 02:19:33 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > Chris Murphy posted on Sat, 20 Aug 2016 18:36:21 -0600 as excerpted: > > > FAT leaves a lot to be desired but it's pretty universally > > supported and almost trivial to repair *if* the volume is > > repairable in

Re:

Am Wed, 31 Aug 2016 23:10:13 -0400 schrieb Jeff Mahoney : > On 8/31/16 10:02 PM, Fennec Fox wrote: > > Linux Titanium 4.7.2-1-MANJARO #1 SMP PREEMPT Sun Aug 21 15:04:37 > > UTC 2016 x86_64 GNU/Linux > > btrfs-progs v4.7 > > > > Data, single: total=30.01GiB, used=18.95GiB > >

[OT] Re: Balancing subvolume on a specific device

Am Sat, 20 Aug 2016 06:30:11 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > There's at least three other options to try to get what you mention, > however. FWIW, I'm a gentooer and thus build everything from sources > here, and use ccache myself. What I do is put all my build stuff, >

Re: btrfs send extremely slow (almost stuck)

Am Sun, 28 Aug 2016 17:41:22 -0400 schrieb james harvey : > On Sun, Aug 28, 2016 at 12:15 PM, Oliver Freyermuth > wrote: > > For me, this means I have to stay with rsync backups, which are > > sadly incomplete since special FS attrs like "C"

Re: btrfstune settings

Am Sun, 28 Aug 2016 20:10:38 +0200 schrieb Oliver Freyermuth : > > Try borgbackup, I'm using it very successfully. It is very fast, > > supports very impressive deduplication and compression, retention > > policies, and remote backups - and it is available as a single

Re: btrfstune settings

Am Sun, 28 Aug 2016 18:18:52 +0200 schrieb Oliver Freyermuth : > That would certainly be the best option, however, > I have two issues with that: > - Any replay of a backup will do a lot of writes on the SSD, > reducing lifetime. I'm using bcache in front of my

Re: btrfstune settings

Am Sun, 28 Aug 2016 18:18:52 +0200 schrieb Oliver Freyermuth : > (sorry if my Message-ID header is missing, I am not subscribed to the > mailing list, so I reply using mail-archive) > > > Try btrfs-show-super . The incompat_flags section > > enumerates the flags

Re: btrfstune settings

Am Sun, 28 Aug 2016 08:27:59 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > > However, I miss two things: > > - How do I see on an existing FS which of these features are on? > > btrfstune (it seems) can only "set", but not "get" the feature > > flags. > > Try btrfs-show-super . The

[4.7.2] btrfs_run_delayed_refs:2963: errno=-17 Object already exists

Hello list! It happened again. While using VirtualBox the following crash happened, btrfs check found a lot of errors which it couldn't repair. Earlier that day my system crashed which may already introduced errors into my filesystem. Apparently, I couldn't create an image (not enough space

Re: Data recovery from a linear multi-disk btrfs file system

Am Thu, 21 Jul 2016 00:19:41 +0200 schrieb Kai Krakow <hurikha...@gmail.com>: > Am Fri, 15 Jul 2016 20:45:32 +0200 > schrieb Matt <langel...@gmx.net>: > > > > On 15 Jul 2016, at 14:10, Austin S. Hemmelgarn > > > <ahferro...@gmail.com> wrote:

Re: Data recovery from a linear multi-disk btrfs file system

Am Fri, 15 Jul 2016 20:45:32 +0200 schrieb Matt : > > On 15 Jul 2016, at 14:10, Austin S. Hemmelgarn > > wrote: > > > > On 2016-07-15 05:51, Matt wrote: > >> Hello > >> > >> I glued together 6 disks in linear lvm fashion (no RAID) to obtain > >> one

Re: Btrfs uuid snapshots: orphaned parent_uuid after deleting intermediate subvol

Am Fri, 15 Jul 2016 16:12:51 -0700 (PDT) schrieb Eric Wheeler : > Hello all, > > If I create three subvolumes like so: > > # btrfs subvolume create a > # btrfs subvolume snapshot a b > # btrfs subvolume snapshot b c > > I get a parent-child relationship which can be

Re: mount btrfs takes 30 minutes, btrfs check runs out of memory

Am Fri, 15 Jul 2016 13:24:45 +0800 schrieb Qu Wenruo : > > as for defrag, all my partitions are already on > > autodefrag, so I assume that should be good. Or is manual once in a > > while a good idea as well? > AFAIK autodefrag will only help if you're doing appending

Re: btrfs RAID 10 truncates files over 2G to 4096 bytes.

Am Thu, 7 Jul 2016 00:51:16 +0100 schrieb Tomasz Kusmierz <tom.kusmi...@gmail.com>: > > On 7 Jul 2016, at 00:22, Kai Krakow <hurikha...@gmail.com> wrote: > > > > Am Wed, 6 Jul 2016 13:20:15 +0100 > > schrieb Tomasz Kusmierz <tom.kusmi...@gmail.com>:

Re: btrfs RAID 10 truncates files over 2G to 4096 bytes.

Am Wed, 6 Jul 2016 13:20:15 +0100 schrieb Tomasz Kusmierz : > When I think of it, I did move this folder first when filesystem was > RAID 1 (or not even RAID at all) and then it was upgraded to RAID 1 > then RAID 10. Was there a faulty balance around August 2014 ? Please >

Re: 64-btrfs.rules and degraded boot

Am Tue, 5 Jul 2016 12:53:02 -0600 schrieb Chris Murphy : > For some reason I thought it was possible to do degraded Btrfs boots > by removing root=UUID= in favor of a remaining good block device, e.g. > root=/dev/vda2, and then adding degraded to rootflags. But this >

Re: btrfs defrag questions

Am Mon, 4 Jul 2016 23:16:50 +0200 schrieb Kai Krakow <hurikha...@gmail.com>: > Am Sun, 3 Jul 2016 23:30:20 +0200 > schrieb Adam Borowski <kilob...@angband.pl>: > > > On Sun, Jul 03, 2016 at 04:15:02PM +0200, Henk Slager wrote: > > [...] > [...] >

Re: btrfs defrag questions

Am Sun, 3 Jul 2016 23:30:20 +0200 schrieb Adam Borowski : > On Sun, Jul 03, 2016 at 04:15:02PM +0200, Henk Slager wrote: > [...] > > > > > > That is probably true. Files that are mapped into memory (like > > > running executables) cannot be changed on disk. You could make

Re: btrfs defrag questions

Am Fri, 1 Jul 2016 22:14:00 +0200 schrieb Dmitry Katsubo : > Hello everyone, > > Question #1: > > While doing defrag I got the following message: > > # btrfs fi defrag -r /home > ERROR: defrag failed on /home/user/.dropbox-dist/dropbox: Success > total 1 failures > > I feel

Re: Hot data tracking / hybrid storage

Am Thu, 19 May 2016 14:51:01 -0400 schrieb "Austin S. Hemmelgarn" : > For a point of reference, I've > got a pair of 250GB Crucial MX100's (they cost less than 0.50 USD per > GB when I got them and provide essentially the same power-loss > protections that the high end

Re: Hot data tracking / hybrid storage

Am Wed, 18 May 2016 22:44:55 + (UTC) schrieb Ferry Toth <ft...@exalondelft.nl>: > Op Tue, 17 May 2016 20:33:35 +0200, schreef Kai Krakow: > > > Am Tue, 17 May 2016 07:32:11 -0400 schrieb "Austin S. Hemmelgarn" > > <ahferro...@gmail.com>: > >

Re: Hot data tracking / hybrid storage

Am Tue, 17 May 2016 07:32:11 -0400 schrieb "Austin S. Hemmelgarn" <ahferro...@gmail.com>: > On 2016-05-17 02:27, Ferry Toth wrote: > > Op Mon, 16 May 2016 01:05:24 +0200, schreef Kai Krakow: > > > >> Am Sun, 15 May 2016 21:11:11 + (UTC) &

Re: btrfs RAID-1 vs md RAID-1?

Am Sun, 15 May 2016 19:24:47 +0900 schrieb Tomasz Chmielewski : > I'm trying to read two large files in parallel from a 2-disk RAID-1 > btrfs setup (using kernel 4.5.3). > > According to iostat, one of the disks is 100% saturated, while the > other disk is around 0% busy. > >

Re: Hot data tracking / hybrid storage

Am Sun, 15 May 2016 21:11:11 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > Ferry Toth posted on Sun, 15 May 2016 12:12:09 + as excerpted: > > > Is there anything going on in this area? > > > > We have btrfs in RAID10 using 4 HDD's for many years now with a > > rotating scheme of

Re: commands like "du", "df", and "btrfs fs sync" hang

Am Mon, 9 May 2016 13:13:53 -0400 schrieb Nicholas D Steeves <nstee...@gmail.com>: > On May 7, 2016 7:43 AM, "Kai Krakow" <hurikha...@gmail.com> wrote: > > > > Am Thu, 5 May 2016 08:35:37 +0200 > > schrieb Kai Krakow <hurikha...@gmail.com&g

Re: commands like "du", "df", and "btrfs fs sync" hang

Am Thu, 5 May 2016 08:35:37 +0200 schrieb Kai Krakow <hurikha...@gmail.com>: > Am Tue, 3 May 2016 08:48:14 +0200 > schrieb Kai Krakow <hurikha...@gmail.com>: > > > Am Sun, 1 May 2016 20:39:31 -0400 > > schrieb Nicholas D Steeves <nstee...@gmail.com>: &

Re: commands like "du", "df", and "btrfs fs sync" hang

Am Tue, 3 May 2016 08:48:14 +0200 schrieb Kai Krakow <hurikha...@gmail.com>: > Am Sun, 1 May 2016 20:39:31 -0400 > schrieb Nicholas D Steeves <nstee...@gmail.com>: > > > On 1 May 2016 at 03:00, Kai Krakow <hurikha...@gmail.com> wrote: > > > Hell

Re: commands like "du", "df", and "btrfs fs sync" hang

Am Sun, 1 May 2016 20:39:31 -0400 schrieb Nicholas D Steeves <nstee...@gmail.com>: > On 1 May 2016 at 03:00, Kai Krakow <hurikha...@gmail.com> wrote: > > Hello! > > > > I'm not sure what triggeres this, neither if it is btrfs specific. > > The filesystems h

Re: commands like "du", "df", and "btrfs fs sync" hang

Am Mon, 2 May 2016 09:19:13 -0400 schrieb "Austin S. Hemmelgarn" <ahferro...@gmail.com>: > On 2016-05-01 19:49, Duncan wrote: > > Kai Krakow posted on Sun, 01 May 2016 18:54:18 +0200 as excerpted: > > > >> It affects all file systems. The "btrfs fi

Re: commands like "du", "df", and "btrfs fs sync" hang

Am Sun, 1 May 2016 12:47:00 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > Kai Krakow posted on Sun, 01 May 2016 09:00:46 +0200 as excerpted: > > > I'm not sure what triggeres this, neither if it is btrfs specific. > > The filesystems have been recreated from s

commands like "du", "df", and "btrfs fs sync" hang

Hello! I'm not sure what triggeres this, neither if it is btrfs specific. The filesystems have been recreated from scratch. Mainly during my rsync backup (from btrfs to btrfs), but not necessarily limited to rsync usage, my system experiences uninterruptable freezes of commands like "df", "du",

commands like "du", "df", and "btrfs fs sync" hang

Hello! I'm not sure what triggeres this, neither if it is btrfs specific. The filesystems have been recreated from scratch. Mainly during my rsync backup (from btrfs to btrfs), but not necessarily limited to rsync usage, my system experiences uninterruptable freezes of commands like "df", "du",

Re: [PATCH] Btrfs: fix missing s_id setting

Am Tue, 5 Apr 2016 17:52:40 +0900 schrieb Tsutomu Itoh : > On 2016/04/05 16:56, Anand Jain wrote: > > On 04/05/2016 08:08 AM, Tsutomu Itoh wrote: > >> When fs_devices->latest_bdev is deleted or is replaced, sb->s_id > >> has not been updated. > >> As a result, the deleted

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Mon, 4 Apr 2016 17:09:14 -0600 schrieb Chris Murphy : > > Why couldn't/shouldn't I remove snapshots before detaching the seed > > device? I want to keep them on the seed but they are useless to me > > on the sprout. > > You can remove snapshots before or after

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Mon, 4 Apr 2016 22:50:18 +0200 schrieb Kai Krakow <hurikha...@gmail.com>: > Am Mon, 4 Apr 2016 13:57:50 -0600 > schrieb Chris Murphy <li...@colorremedies.com>: > > > On Mon, Apr 4, 2016 at 1:36 PM, Kai Krakow <h

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Mon, 4 Apr 2016 13:57:50 -0600 schrieb Chris Murphy <li...@colorremedies.com>: > On Mon, Apr 4, 2016 at 1:36 PM, Kai Krakow <hurikha...@gmail.com> > wrote: > > > > [...] > >> > >> ? > > > > In the following sense: I should di

Re: csum failed on innexistent inode

Am Mon, 4 Apr 2016 03:50:54 -0400 schrieb Jérôme Poulin : > How is it possible to get rid of the referenced csum errors if they do > not exist? Also, the expected checksum looks suspiciously the same for > multiple errors. Could it be bad RAM in that case? Can I convince >

Re: [PATCH 00/13 v3] Introduce device state 'failed', Hot spare and Auto replace

Am Mon, 4 Apr 2016 04:45:16 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > Kai Krakow posted on Mon, 04 Apr 2016 02:00:43 +0200 as excerpted: > > > Does this also implement "copy-back" - thus, it returns the > > hot-spare device to global hot-spares w

Re: [PATCH 00/13 v3] Introduce device state 'failed', Hot spare and Auto replace

Am Mon, 4 Apr 2016 14:19:23 +0800 schrieb Anand Jain : > > Otherwise, I find "hot spare" misleading and it should be renamed. > > I never thought hot spare would be narrowed to such a specifics. [...] > About the naming.. the progs called it 'global spare' (device),

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Sun, 3 Apr 2016 18:51:07 -0600 schrieb Chris Murphy : > > BTW: Is it possible to use my backup drive (it's btrfs single-data > > dup-metadata, single device) as a seed device for my newly created > > btrfs pool (raid0-data, raid1-metadata, three devices)? > > Yes. >

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Mon, 4 Apr 2016 04:34:54 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > Meanwhile, putting bcache into write-around mode, so it makes no > further changes to the ssd and only uses it for reads, is probably > wise, and should help limit further damage. Tho if in that mode > bcache still

Re: [PATCH 00/13 v3] Introduce device state 'failed', Hot spare and Auto replace

Am Sat, 2 Apr 2016 09:30:38 +0800 schrieb Anand Jain : > Auto replace: > Replace happens automatically, that is when there is any write > failed or flush failed, the device will be marked as failed, which > will stop any further IO attempt to that device. And in the

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Sun, 3 Apr 2016 05:06:19 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > Kai Krakow posted on Sun, 03 Apr 2016 06:02:02 +0200 as excerpted: > > > No, other files are affected, too. And it looks like those files are > > easily affected even when removed and recrea

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Sat, 2 Apr 2016 18:14:17 -0600 schrieb Chris Murphy <li...@colorremedies.com>: > On Sat, Apr 2, 2016 at 2:16 PM, Kai Krakow <hurikha...@gmail.com> > wrote: > > > I'll go checking the RAM for problems - tho that would be the first > > time in twenty years tha

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Sat, 2 Apr 2016 19:17:55 +0200 schrieb Henk Slager <eye...@gmail.com>: > On Sat, Apr 2, 2016 at 11:00 AM, Kai Krakow <hurikha...@gmail.com> > wrote: > > Am Fri, 1 Apr 2016 01:27:21 +0200 > > schrieb Henk Slager <eye...@gmail.com>: > > > >&

Re: bad metadata crossing stripe boundary

Am Sat, 2 Apr 2016 11:44:32 +0200 schrieb Marc Haber <mh+linux-bt...@zugschlus.de>: > On Sat, Apr 02, 2016 at 11:03:53AM +0200, Kai Krakow wrote: > > Am Fri, 1 Apr 2016 07:57:25 +0200 > > schrieb Marc Haber <mh+linux-bt...@zugschlus.de>: > > > On Thu, M

Re: bad metadata crossing stripe boundary

Am Fri, 1 Apr 2016 07:57:25 +0200 schrieb Marc Haber <mh+linux-bt...@zugschlus.de>: > On Thu, Mar 31, 2016 at 11:16:30PM +0200, Kai Krakow wrote: > > Am Thu, 31 Mar 2016 23:00:04 +0200 > > schrieb Marc Haber <mh+linux-bt...@zugschlus.de>: > > > I find it so

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Fri, 1 Apr 2016 01:27:21 +0200 schrieb Henk Slager : > It is not clear to me what 'Gentoo patch-set r1' is and does. So just > boot a vanilla v4.5 kernel from kernel.org and see if you get csum > errors in dmesg. It is the gentoo patchset, I don't think anything there

Re: btrfsck: backpointer mismatch (and multiple other errors)

Am Fri, 1 Apr 2016 09:10:44 +0800 schrieb Qu Wenruo : > The real problem is, the extent has mismatched reference. > Normally it can fixed by --init-extent-tree option, but it normally > means bigger problem, especially it has already caused kernel > delayed-ref problem.

Re: bad metadata crossing stripe boundary

Am Thu, 31 Mar 2016 23:16:30 +0200 schrieb Kai Krakow <hurikha...@gmail.com>: > Am Thu, 31 Mar 2016 23:00:04 +0200 > schrieb Marc Haber <mh+linux-bt...@zugschlus.de>: > > > On Thu, Mar 31, 2016 at 10:31:49AM +0800, Qu Wenruo wrote: > > > Would you please t

Re: bad metadata crossing stripe boundary

Am Thu, 31 Mar 2016 23:00:04 +0200 schrieb Marc Haber : > On Thu, Mar 31, 2016 at 10:31:49AM +0800, Qu Wenruo wrote: > > Would you please try the following patch based on v4.5 btrfs-progs? > > https://patchwork.kernel.org/patch/8706891/ > > This also fixes the "bad

btrfsck: backpointer mismatch (and multiple other errors)

Hello! I already reported this in another thread but it was a bit confusing by intermixing multiple volumes. So let's start a new thread: Since one of the last kernel upgrades, I'm experiencing one VDI file (containing a NTFS image with Windows 7) getting damaged when running the machine in

Re: bad metadata crossing stripe boundary

Am Thu, 31 Mar 2016 10:31:49 +0800 schrieb Qu Wenruo <quwen...@cn.fujitsu.com>: > Qu Wenruo wrote on 2016/03/31 09:33 +0800: > > > > > > Kai Krakow wrote on 2016/03/28 12:02 +0200: > >> Changing subject to reflect the current topic... > >> > >&

Re: csum errors in VirtualBox VDI files

Am Sun, 27 Mar 2016 13:04:25 -0600 schrieb Chris Murphy : > As for the csum errors with this one single VDI file, you're going to > have to come up with a way to reproduce it consistently. You'll need > to have a good copy on a filesystem that comes up clean with btrfs >

bad metadata crossing stripe boundary (was: csum errors in VirtualBox VDI files)

Changing subject to reflect the current topic... Am Sun, 27 Mar 2016 21:55:40 +0800 schrieb Qu Wenruo : > > I finally got copy data: > > > > # before mounting let's check the FS: > > > > $ sudo btrfsck /dev/disk/by-label/usb-backup > > Checking filesystem on

Re: csum errors in VirtualBox VDI files

Am Sat, 26 Mar 2016 22:57:53 -0600 schrieb Chris Murphy <li...@colorremedies.com>: > On Sat, Mar 26, 2016 at 7:30 PM, Kai Krakow <hurikha...@gmail.com> > wrote: > > > Both filesystems on this PC show similar corruption now - but they > > are connected to complet

Re: csum errors in VirtualBox VDI files

Am Sun, 27 Mar 2016 14:18:26 +0200 schrieb Martin Steigerwald <mar...@lichtvoll.de>: > On Dienstag, 22. März 2016 09:03:42 CEST Kai Krakow wrote: > > Hello! > > > > Since one of the last kernel updates (I don't know which exactly), > > I'm experiencing csum err

Re: csum errors in VirtualBox VDI files

Am Sat, 26 Mar 2016 20:30:35 +0100 schrieb Kai Krakow <hurikha...@gmail.com>: > Am Wed, 23 Mar 2016 12:16:24 +0800 > schrieb Qu Wenruo <quwen...@cn.fujitsu.com>: > > > Kai Krakow wrote on 2016/03/22 19:48 +0100: > > > Am Tue, 22 Mar 2016 16:47:10

Re: csum errors in VirtualBox VDI files

Am Sat, 26 Mar 2016 15:04:13 -0600 schrieb Chris Murphy <li...@colorremedies.com>: > On Sat, Mar 26, 2016 at 2:28 PM, Chris Murphy > <li...@colorremedies.com> wrote: > > On Sat, Mar 26, 2016 at 1:30 PM, Kai Krakow <hurikha...@gmail.com> > > wrote: > >>

Re: csum errors in VirtualBox VDI files

Am Sat, 26 Mar 2016 14:28:22 -0600 schrieb Chris Murphy <li...@colorremedies.com>: > On Sat, Mar 26, 2016 at 1:30 PM, Kai Krakow <hurikha...@gmail.com> > wrote: > > > Well, this time it hit me on the USB backup drive which uses no > > bcache and no other fancy o

Re: csum errors in VirtualBox VDI files

Am Wed, 23 Mar 2016 12:16:24 +0800 schrieb Qu Wenruo <quwen...@cn.fujitsu.com>: > Kai Krakow wrote on 2016/03/22 19:48 +0100: > > Am Tue, 22 Mar 2016 16:47:10 +0800 > > schrieb Qu Wenruo <quwen...@cn.fujitsu.com>: > > > >> Hi, > >&

Re: csum errors in VirtualBox VDI files

Am Tue, 22 Mar 2016 21:07:35 +0100 schrieb Henk Slager <eye...@gmail.com>: > On Tue, Mar 22, 2016 at 9:03 AM, Kai Krakow <hurikha...@gmail.com> > wrote: > > Hello! > > > > Since one of the last kernel updates (I don't know which exactly), > > I'm expe

Re: csum errors in VirtualBox VDI files

Am Tue, 22 Mar 2016 13:42:00 -0600 schrieb Chris Murphy : > This is kinda confusing. Err yes maybe... ;-D > So the gist is that the guest OS is Windows, so the VDI contains an > NTFS file system. Correct? And that VDI is on a Btrfs formatted bcache > device. Correct?

Re: csum errors in VirtualBox VDI files

Am Tue, 22 Mar 2016 16:47:10 +0800 schrieb Qu Wenruo <quwen...@cn.fujitsu.com>: > Hi, > > Kai Krakow wrote on 2016/03/22 09:03 +0100: > > Hello! > > > > Since one of the last kernel updates (I don't know which exactly), > > I'm experiencing cs

Re: csum errors in VirtualBox VDI files

Am Tue, 22 Mar 2016 09:03:42 +0100 schrieb Kai Krakow <hurikha...@gmail.com>: > Hello! > > Since one of the last kernel updates (I don't know which exactly), I'm > experiencing csum errors within VDI files when running VirtualBox. A > side effect of this is, as soon as dme

Re: csum errors in VirtualBox VDI files

Am Tue, 22 Mar 2016 09:03:42 +0100 schrieb Kai Krakow <hurikha...@gmail.com>: > Hello! > > Since one of the last kernel updates (I don't know which exactly), I'm > experiencing csum errors within VDI files when running VirtualBox. A > side effect of this is, as soon as dme

csum errors in VirtualBox VDI files

Hello! Since one of the last kernel updates (I don't know which exactly), I'm experiencing csum errors within VDI files when running VirtualBox. A side effect of this is, as soon as dmesg shows these errors, commands like "du" and "df" hang until reboot. I've now restored the file from backup

Re: USB memory sticks wear & speed: btrfs vs f2fs?

Am Tue, 9 Feb 2016 09:59:12 -0500 schrieb "Austin S. Hemmelgarn" : > > I haven't found much reference or comparison information online wrt > > wear leveling - mostly performance benchmarks that don't really > > address your request. Personally I will likely never bother with

Re: Use fast device only for metadata?

Am Tue, 09 Feb 2016 08:10:15 -0800 schrieb Nikolaus Rath <nikol...@rath.org>: > On Feb 09 2016, Kai Krakow <hurikha...@gmail.com> wrote: > > You could even format a bcache superblock "just in case", > > and add an SSD later. Without SSD, bcache will just work

Re: Use fast device only for metadata?

Am Tue, 09 Feb 2016 08:09:20 -0800 schrieb Nikolaus Rath <nikol...@rath.org>: > On Feb 09 2016, Kai Krakow <hurikha...@gmail.com> wrote: > > I'm myself using bcache+btrfs and it ran bullet proof so far, even > > after unintentional resets or power outage. It's impor

Re: "layout" of a six drive raid10

Am Tue, 9 Feb 2016 01:42:40 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > Tho I'd consider benchmarking or testing, as I'm not sure btrfs raid1 > on spinning rust will in practice fully saturate the gigabit > Ethernet, particularly as it gets fragmented (which COW filesystems > such as

Re: Use fast device only for metadata?

Am Mon, 08 Feb 2016 13:44:17 -0800 schrieb Nikolaus Rath <nikol...@rath.org>: > On Feb 07 2016, Martin Steigerwald <mar...@lichtvoll.de> wrote: > > Am Sonntag, 7. Februar 2016, 21:07:13 CET schrieb Kai Krakow: > >> Am Sun, 07 Feb 2016 11:06:58 -0800 > >

Re: "layout" of a six drive raid10

Am Tue, 9 Feb 2016 08:02:58 +0100 schrieb Kai Krakow <hurikha...@gmail.com>: > Am Tue, 9 Feb 2016 01:42:40 + (UTC) > schrieb Duncan <1i5t5.dun...@cox.net>: > > > Tho I'd consider benchmarking or testing, as I'm not sure btrfs > > raid1 on spinning rus

Re: Use fast device only for metadata?

Am Sun, 07 Feb 2016 11:06:58 -0800 schrieb Nikolaus Rath : > Hello, > > I have a large home directory on a spinning disk that I regularly > synchronize between different computers using unison. That takes ages, > even though the amount of changed files is typically small. I

Re: Ideas to do custom operation just after mount?

Am Mon, 21 Dec 2015 13:18:22 +0800 schrieb Anand Jain : > > > > BTW, any good idea for btrfs to do such operation like > > enabling/disabling some minor features? Especially when it can be > > set on individual file/dirs. > > > > Features like incoming write time

Re: btrfs check inconsistency with raid1, part 1

Am Mon, 21 Dec 2015 10:23:31 +0800 schrieb Qu Wenruo : > > > Chris Murphy wrote on 2015/12/20 19:12 -0700: > > On Sun, Dec 20, 2015 at 6:43 PM, Qu Wenruo > > wrote: > >> > >> > >> Chris Murphy wrote on 2015/12/20 15:31 -0700: > > > >>> I think

Re: attacking btrfs filesystems via UUID collisions?

Am Thu, 17 Dec 2015 03:25:50 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > So it's definitely _not_ something that reiserfsck would do in a > "normal" fsck, only when doing "I'm desperate and don't have backups, > go to the ends of the earth if necessary to recover what you can of > my

Re: btrfs check inconsistency with raid1, part 1

Am Tue, 22 Dec 2015 09:22:20 +0800 schrieb Qu Wenruo <quwen...@cn.fujitsu.com>: > > > Kai Krakow wrote on 2015/12/22 02:05 +0100: > > Am Mon, 21 Dec 2015 10:23:31 +0800 > > schrieb Qu Wenruo <quwen...@cn.fujitsu.com>: > > > >> > >> > &

Re: safety of journal based fs (was: Re: still kworker at 100% cpu…)

Am Mon, 14 Dec 2015 10:10:51 +0100 schrieb Martin Steigerwald : > > But the problem is, when recovering journal, there is no journal of > > journal, to keep journal recovering safe from power loss. > > But the journal should be safe due to a journal commit being one >

Re: compression disk space saving - what are your results?

Am Wed, 2 Dec 2015 09:49:05 -0500 schrieb Austin S Hemmelgarn : > > So, 138 GB files use just 24 GB on disk - nice! > > > > However, I would still expect that compress=zlib has almost the same > > effect as compress-force=zlib, for 100% text files/logs. > > > That's better

Re: Ideas on unified real-ro mount option across all filesystems

Am Fri, 18 Dec 2015 03:01:06 +0100 schrieb Christoph Anton Mitterer : > The manpage says: > > ro Mount the filesystem read-only. > > rw Mount the filesystem read-write. That means: the filesystem... Not the block device... Sorry, it's kinda nitpicking. But

Re: [auto-]defrag, nodatacow - general suggestions?(was: btrfs: poor performance on deleting many large files?)

Am Wed, 9 Dec 2015 13:36:01 + (UTC) schrieb Duncan <1i5t5.dun...@cox.net>: > >> > 4) Duncan mentioned that defrag (and I guess that's also for > >> > auto- defrag) isn't ref-link aware... > >> > Isn't that somehow a complete showstopper? > > >> It is, but the one attempt at dealing with it

Re: Intended destination for symlinks after subvolume snapshot

Marc O'Morain schrieb: > Hi all, > > What is the intended destination of a symlink inside a subvolume after > a snapshot? > > When I take a snapshot of a subvolume that contains a symlink, the > symlink points outside the snapshot and into the original subvolume. > > Is

booting btrfs RAID with dracut/systemd results in open_ctree failed

Hi! I need to boot with dracut to get my btrfs root partition properly initialized (because it is a multi-device btrfs). Today, after upgrading to systemd v220, I tracked a booting issue down to what looks like a general problem with the btrfs udev rules distributed with systemd: If I drop

Re: how to clone a btrfs filesystem

Chris Murphy li...@colorremedies.com schrieb: On Sat, Apr 18, 2015 at 10:09 AM, Kai Krakow hurikha...@gmail.com wrote: You could simply btrfs device add the new device, then btrfs device del the old device... That wipes the btrfs signature (maybe the entire superblock, I'm not sure) from

Re: how to clone a btrfs filesystem

Christoph Anton Mitterer cales...@scientia.net schrieb: Hey. I've seen that this has been asked some times before, and there are stackoverflow/etc. questions on that, but none with a really good answer. How can I best copy one btrfs filesystem (with snapshots and subvolumes) into

Re: how to clone a btrfs filesystem

Kai Krakow hurikha...@gmail.com schrieb: Christoph Anton Mitterer cales...@scientia.net schrieb: Hey. I've seen that this has been asked some times before, and there are stackoverflow/etc. questions on that, but none with a really good answer. How can I best copy one btrfs filesystem

Re: Recovering BTRFS from bcache failure.

Dan Merillat dan.meril...@gmail.com schrieb: Bcache failures are nasty, because they leave a mix of old and new data on the disk. In this case, there was very little dirty data, but of course the tree roots were dirty and out-of-sync. fileserver:/usr/src/btrfs-progs# ./btrfs --version

Re: F21 fails to mount root part, btrfs check: Couldn't open file system

Chris Murphy li...@colorremedies.com schrieb: On Tue, Mar 31, 2015 at 4:15 PM, Chris Murphy li...@colorremedies.com wrote: The i915 regression right now is really annoying. With a Samsung 840 EVO I've had inexplicable and non-deterministic boot failures. Clarification: the boot failures

Re: F21 fails to mount root part, btrfs check: Couldn't open file system

Chris Murphy li...@colorremedies.com schrieb: On Tue, Mar 31, 2015 at 2:09 PM, Chris Murphy li...@colorremedies.com wrote: Well you have to rule that out before anyone on this list can really help. Try booting Fedora 21 install media, and using smartctl -x on the drive. While you're at

Re: F21 fails to mount root part, btrfs check: Couldn't open file system

Kai Krakow hurikha...@gmail.com schrieb: Chris Murphy li...@colorremedies.com schrieb: On Tue, Mar 31, 2015 at 2:09 PM, Chris Murphy li...@colorremedies.com wrote: Well you have to rule that out before anyone on this list can really help. Try booting Fedora 21 install media, and using

Re: btrfs dedup - available or experimental? Or yet to be?

Rich Freeman r-bt...@thefreemanclan.net schrieb: On Sun, Mar 29, 2015 at 7:43 AM, Kai Krakow hurikha...@gmail.com wrote: With the planned performance improvements, I'm guessing the best way will become mounting the root subvolume (subvolid 0) and letting duperemove work on that as a whole

Re: btrfs dedup - available or experimental? Or yet to be?

Rich Freeman r-bt...@thefreemanclan.net schrieb: On Thu, Mar 26, 2015 at 8:07 PM, Martin m_bt...@ml1.co.uk wrote: Anyone with any comments on how well duperemove performs for TB-sized volumes? Took many hours but less than a day for a few TB - I'm not sure whether it is smart enough to

Re: number of hardlinks for directory in ls -lid always 1?

Filipe David Manana fdman...@gmail.com schrieb: On Thu, Mar 19, 2015 at 1:21 PM, David Sterba dste...@suse.cz wrote: On Wed, Mar 18, 2015 at 03:23:50PM +0100, Martin Steigerwald wrote: It explains that having a correct hardlink number for directory is not mandatory, but it doesn´t explain why

Re: BTRFS hot relocation not merged

Duncan 1i5t5.dun...@cox.net schrieb: Max Schettler posted on Thu, 19 Feb 2015 12:49:37 +0100 as excerpted: I recently was looking for the status of hot relocation on btrfs. There seemed to be some activity on the mailinglist around 5/2013 regarding patches that should provide the

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