similar to: Replacing corrupted files/directories

2011/10/26 Sage Weil <sage@newdream.net>: > On Wed, 26 Oct 2011, Christian Brunner wrote: >> >> > Christian, have you tweaked those settings in your ceph.conf?  It would be >> >> > something like ''journal dio = false''.  If not, can you verify that >> >> > directio shows true when the journal is initialized from your osd log?

I''m trying to create a multi-device filesystem on top of regular files (not actual disks), and mount that to a loopback device. For a filesystem created on a single file, it works fine, but for a filesystem across multiple files, it doesn''t. dd if=/dev/zero of=img1 bs=4096 count=65536 dd if=/dev/zero of=img2 bs=4096 count=65536 dd if=/dev/zero of=img3 bs=4096 count=65536 dd

Lockdep complains about btrfs''s async commit: [ 2372.462171] [ BUG: bad unlock balance detected! ] [ 2372.462191] 3.12.0+ #32 Tainted: G W [ 2372.462209] ------------------------------------- [ 2372.462228] ceph-osd/14048 is trying to release lock (sb_internal) at: [ 2372.462275] [<ffffffffa022cb10>] btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs] [ 2372.462305] but there

.. it would be great if btrfs could be expended about abilities that OneFS file system has (FS by Isilon) .. there is ceph open source clustered/distributed storage system that is using btrfs, maybe work with those people would be a good start http://ceph.newdream.net/about/ http://ceph.newdream.net/ -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body

tl;dr version: 3.0 produces “bio too big” dmesg entries and silently corrupts data in “meta-raid1/data-single” configurations on disks with different max_hw_sectors, where 2.6.38 worked fine. tl;dr side-issue: on-line removal of partitions holding “single” data attempts to create raid0 (rather than single) block groups. If it can''t get enough room for raid0 over all remaining disks, it

We''ve been seeing warnings coming out of the orphan commit stuff forever from ceph. Turns out it''s because we''re racing with checking if the orphan block reserve is set, because we clear it outside of the spin_lock. So leave the normal fastpath checks where they are, but take the spin_lock and _recheck_ to make sure we haven''t had an orphan block rsv added in

The fault code has been calling file_update_time after ->page_mkwrite after it drops the page lock, but this is annoying because this calls mark_inode_dirty which can fail in Btrfs, so we want to be able to do these updates in ->page_mkwrite so we can get an error back to the user. So get rid of the file_update_time calls in the fault code and push it into everybody who has a

Hi Chris- Here''s a simpler version of the patch that drops the unrelated sync_fs stuff. thanks- sage The ''flushoncommit'' mount option forces any data dirtied by a write in a prior transaction to commit as part of the current commit. This makes the committed state a fully consistent view of the file system from the application''s perspective (i.e., it

Hi list This happened when running an iozone test over ceph, it was doing lots of random reads. I have no idea how to properly interpret this, I should find it out. Let me know if you need something else. Thanks! [69003.803272] ------------[ cut here ]------------ [69003.807987] kernel BUG at fs/btrfs/inode.c:6230! [69003.807987] invalid opcode: 0000 [#1] SMP [69003.807987] last sysfs file:

Hi I am hitting this Warning reproducible, the workload is a ceph osd, kernel ist 3.1.0-rc5. Best Regards, martin [ 5472.099766] ------------[ cut here ]------------ [ 5472.099833] WARNING: at fs/btrfs/inode.c:2193 btrfs_orphan_commit_root+0xb0/0xc0 [btrfs]() [ 5472.099838] Hardware name: MS-96B3 [ 5472.099842] Modules linked in: radeon ttm drm_kms_helper drm i2c_algo_bit psmouse sp5100_tco

For quite a while, I''ve experienced oddities with snapshotted Firefox _CACHE_00?_ files, whose checksums (and contents) would change after the btrfs snapshot was taken, and would even change depending on how the file was brought to memory (e.g., rsyncing it to backup storage vs checking its md5sum before or after the rsync). This only affected these cache files, so I didn''t give

Hi, we are running a ceph cluster with btrfs as it''s base filesystem (kernel 3.0). At the beginning everything worked very well, but after a few days (2-3) things are getting very slow. When I look at the object store servers I see heavy disk-i/o on the btrfs filesystems (disk utilization is between 60% and 100%). I also did some tracing on the Cepp-Object-Store-Daemon, but I''m

Hello, I''m seeing a lot of warnings in dmesg with a BTRFS filesystem. I''m using the 3.1 kernel, I found a patch for these warnings ( http://marc.info/?l=linux-btrfs&m=131547325515336&w=2) <http://marc.info/?l=linux-btrfs&m=131547325515336&w=2>, but that patch has already been included in 3.1. Are there any other patches I can try? I''m using

Hi all, I have a question about replacing a drive in raid10 (and linux kernel 3.8.4). A bad disk was physical removed from the server. After this a new disk was added with "btrfs device add /dev/sdg /btrfs" to the raid10 btrfs FS. After this the server was rebooted and I mounted the filesystem in degraded mode. It seems that a previous started balance continued. At this point I want to

Hi all, I''ve been playing with btrfs resize recently and run into strange looking behavior to me. One of my simple test scenario was following: - partition some block device (lets say sda sectors 2-2000 are sda1) - try to create btrfs on top of it (just mkfs.btrfs /dev/sda1) - fill the fs with data - unmount the device - let''s simulate usual mistake here: downsize the

Dear list members, Yesterday I was about to restart my computer and that''s why I closed every opened applications: three Eclipse instances, two other Java applications, 2 web browsers etc. It involved a lot of IO operations and before everything could settle down my system became unresponsive. I mean X & co. worked fine, but anything related to IO (opening a new screen, a new

HI all, >----Messaggio originale---- >Da: chris.mason@fusionio.com >Data: 20/06/2012 1.49 >A: "H. Peter Anvin"<hpa@zytor.com> >Cc: "linux-btrfs@vger.kernel.org"<linux-btrfs@vger.kernel.org> >Ogg: Re: Subvolumes and /proc/self/mountinfo > >> b. Are there better ways (walking the tree using BTRFS_IOC_TREE_SEARCH?) >> to accomplish

I have a corrupted multi-device file system that got corrupted ages ago (as I recall, one of the drives stopped responding, causing btrfs to panic). I am hoping to recover some of the data. For what it''s worth, here is the dmesg output from trying to mount the file system on a 3.0 kernel: device label Media devid 6 transid 816153 /dev/sdq device label Media devid 7 transid 816153

The freeze rwsem is taken by sb_start_intwrite() and dropped during the commit_ or end_transaction(). In the async case, that happens in a worker thread. Tell lockdep the calling thread is releasing ownership of the rwsem and the async thread is picking it up. Josef and I worked out a more complicated solution that made the async commit thread join and potentially get a later transaction, but

Hello, I''m using kernel 3.1.0 and I have both / and /home as btrfs. I used suspend to ram quite often and never had a problem, but yesterday I''ve suspended to get into a plane and when I resumed my /home was all about input/output errors. Reboot did not help either. My root (/) did not suffer any problems. Today I''ve upgraded btrfs-progs to latest GIT and tried scrub