similar to: Re: [btrfs-transacti] & btrfs-endio-wri] - WAS: Re: [btrfs-delalloc-]

Hello all. What we have: SL6 - kernel 2.6.32-131.2.1.el6.x86_64 btrfs on mdadm RAID5 with 8 HDD - 27T partition. I see this at top: 1182 root 20 0 0 0 0 R 100.0 0.0 16:39.73 [btrfs-delalloc-] And LA is grow. What is this and how can I fix it? -- Best regards, Proskurin Kirill -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of

I am using NFS over brtfs (vanilla 3.8.5) for heavy CoW to clone virtual disks with sizes 20-50GB. It worked OK for a couple of days, but yesterday it crashed. Reboot fixed the problem and I do not see any data corruption. I have a couple of different kdumps, I will include one as text and attach the other ones. I am using Fedora 18 with vanilla 3.8.5. The filesystem is created over a SAN volume

We need an smb_mb() before waitqueue_active to avoid missing wakeups. Before Mitch was hitting a deadlock between the ordered flushers and the transaction commit because the ordered flushers were waiting for more refs and were never woken up, so those smp_mb()''s are the most important. Everything else I added for correctness sake and to avoid getting bitten by this again somewhere else.

On 06/21/2011 01:15 PM, Jan Stilow wrote: > Hello, > > Nirbheek Chauhan <nirbheek <at> gentoo.org> writes: >> [...] >> >> Every few minutes, (I guess) when applications do fsync (firefox, >> xchat, vim, etc), all applications that use fsync() hang for several >> seconds, and applications that use general IO suffer extreme >> slowdowns.

Liu fixed part of this problem and unfortunately I steered him in slightly the wrong direction and so didn''t completely fix the problem. The problem is we limit the size of the delalloc range we are looking for to max bytes and then we try to lock that range. If we fail to lock the pages in that range we will shrink the max bytes to a single page and re loop. However if our first page

Hello, I habe the problems described in here https://btrfs.wiki.kernel.org/index.php/Gotchas: Files with a lot of random writes can become heavily fragmented (10000+ extents) causing trashing on HDDs and excessive multi-second spikes of CPU load on systems with an SSD or large amount a RAM. On servers and workstations this affects databases and virtual machine images. The nodatacow mount option

try_to_writeback_inodes_sb_nr returns 1 if writeback is already underway, which is completely fraking useless for us as we need to make sure pages are actually written before we go and check if there are ordered extents. So replace this with an open coding of try_to_writeback_inodes_sb_nr minus the writeback underway check so that we are sure to actually have flushed some dirty pages out and will

When using delalloc workers in a non-waiting way (like for enospc handling) we can end up not actually waiting for the dirty pages to be started if we have compression. We need to add an extra filemap flush to make sure any async extents that have started are actually moved along before returning. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> --- fs/btrfs/inode.c | 18

When testing with max_extents=4k, we enospc out really really early. The reason for this is we really overwhelm the system with our worst case calculation. When we try to flush delalloc, we don''t want everybody to wait around forever, so we wake up the waiters when we''ve done some of the work in hopes that its enough work to get everything they need done. The problem with this

This is a first draft of a subvolume quota implementation. It is possible to limit subvolumes and any group of subvolumes and also to track the amount of space that will get freed when deleting snapshots. The current version is functionally incomplete, with the main missing feature being the initial scan and rescan of an existing filesystem. I put some effort into writing an introduction into

Hi, I have setup about a year ago a BTRFS RAID 1 filesystem on two 2TB Western Digital WD20EARS hard drives and I have created subvolumes that I mount regularly as I need them. I put mostly music, videos and various files on them as well as some Git bare repositories for my work files but for the last couple of weeks, there seems to be some activity happening on the drives for a few minutes and

When I try to umount btrfs filesystem I get always this error with kernel 3.11.4 and 3.11.3, but I can mount and umount without error on kernel 3.11.2. Exact error messages are: BUG: soft lockup - CPU#0 stuck for 23s! [btrfs-transacti:680] BUG: soft lockup - CPU#1 stuck for 23s! [umount:1575] I''m on Fedora 19 I have run scrub and there are no errors: # btrfs scrub status /home scrub

Hey, I''ve a 2x4TB RAID1 setup with btrfs on kernel 3.8.0. Under high I/O load (BackupPC dump or writing a large file over gigabit) I get messages in syslog such as the one mentioned in the subject. The full non-logcheck-ignored log is under [1]. A BackupPC dump between the same exact machines onto a 2TB ext4 volume take 90 minutes on average, the process on the btrfs volume took 465

Hi all. I was doing some testing with writing out data to a BTFS filesystem with the compress-force option. With 1 program running, I saw btfs-delalloc taking about 1 CPU worth of time, much as could be expected. I then started up 2 programs at the same time, writing data to the BTRFS volume. btrfs-delalloc still only used 1 CPU worth of time. Is btrfs-delalloc threaded, to where it can use

Running an Ubuntu Raring VM which was built a week ago that is now running 3.8-rc6, I was booting it last night when it hung. After a few forced reboots, it came back up and I found the attached in kern.log. Mostly, the VM has been used for testing anisble deployment, so not a lot of work, just upgrading and installing software, then rebooting. Are these reports useful? Is there any

Hello all! #pkg_info | grep dovecot dovecot-1.1.3_1 dovecot-managesieve-0.10.3 dovecot-sieve-1.1.5_1 Im trying to do this: Im have a LDAP account with multiple "mail" field like this(many strings cuted): dn: uid=k.proskurin,ou=Users,dc=Moscow,dc=CAS uid: k.proskurin userPassword: {CRYPT}$1$ETadxf6G$O2bNUQVSHxksUp08V/iY2. mail: sysadmin at domain.off mail: proskurin-kv at domain.off

Hello all. I have 2 Dovecot IMAP servers with different mailboxes. What serves different email domains. I want to add one Dovecot Proxy server and make him understand based on user domain - were it need to transfer a connection. I use LDAP auth based on "mail" attribute. It is possible? P.S. Proxy documentation at dovecot.org not help at all and seems to not complited. :-( --

Hello! I think about migrate from FreeBSD to Linux because I need DRBD for clustering. I want to use Debian Lenny but run on some problems. I want near latest Dovecot packages. Native repos are too old. Backports seems to don`t have a Sieve&Managesieve support and we need it(am I wrong?). Stephan Bosch auto packeges is not for production. How could I solve this without make own

Hello all. I'm have this problem: I'm want auth users by "uid" filed but this filed uniq only in one LDAP container. So im what to tell dovecot were to look some "uid" by "mail" filed of this user. Can im do this: pass_filter = (&(objectClass=mailUser)(mail=*@%d)(uid=%n)) Will this construction work? -- Best regards, Proskurin Kirill

Hello all. Im try to make a SMTP Auth using Docecot SASL. Im use swaks for tests. Im store users in LDAP. As im understand for CRAM & DIGEST MD5 we need to store pass in a clear text?... Ok. mail: admin3 at domain.off userPassword: 123 <- Clear text What im do %swaks -a CRAM-MD5 -au admin3 at domain.off -ap 123 To: admin3 at domain.off === Trying mx.domain.off:25... === Connected to