search for: endio

...t 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 the following processes are showing up while this happens: brtfs-cache-1 and brtfs-endio-met. It seems that brtfs-cache-1 is more ''busy'' than brtfs-endio-met but after a while everything seems fine again. Is there anything I should worry about? I will soon do a full backup on ext4 just to make sure I don''t loose anything but is there any checks I can run o...

On 06/30/2011 09:13 PM, Josef Bacik wrote: > On 06/30/2011 10:12 AM, Proskurin Kirill wrote: >> On 06/29/2011 08:14 PM, Josef Bacik wrote: >>>> Ok - I upgrade to 2.6.39-2 but it is seems to all things get worse. >>>> Now I see [btrfs-transacti]& btrfs-endio-wri] 80-100% all the time and >>>> io performance looks like lower then before. >>>> >>>> Our scribe daemon in state D most of the time with half of a normal >>>> load. Only kernel was changed. >>>> >>>> Any performance...

...df /btrfs/ Data: total=879.01GB, used=442.04GB System, DUP: total=8.00MB, used=100.00KB System: total=4.00MB, used=0.00 Metadata, DUP: total=2.00GB, used=586.00MB Metadata: total=8.00MB, used=0.00 Apr 13 04:05:54 datastore01 kernel: [1210991.339071] BUG: soft lockup - CPU#3 stuck for 22s! [btrfs-endio-wri:30524] Apr 13 04:05:54 datastore01 kernel: [1210991.342079] Modules linked in: nfsd nfsv3 nfs_acl nfsv4 auth_rpcgss nfs lockd sunrpc dns_resolver fscache btrfs zlib_deflate libcrc32c lpfc coretemp kvm_intel kvm iTCO_wdt enic i7core_edac i2c_i801 iTCO_vendor_support edac_core bnx2 lpc_ich mfd_co...

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

...ss ohci1394 drm_kms_helper crc32c usb_storage ieee1394 r8169 libcrc32c drm i2c_algo_bit mii radeon pata_jmicron ahci libahci intel_agp ttm ohci1394 drm_kms_helper usb_storage ieee1394 r8169 drm i2c_algo_bit mii pata_jmicron ahci libahci intel_agp [36852.580008] [36852.580008] Pid: 437, comm: btrfs-endio-wri Not tainted 2.6.36-btrfs2 #1 P5Q3/System Product Name [36852.580008] RIP: 0010:[<ffffffffa0224120>] [<ffffffffa0224120>] T.1224+0x220/0x230 [btrfs] [36852.580008] RSP: 0000:ffff880231c7dc30 EFLAGS: 00010286 [36852.580008] RAX: 00000000ffffffe4 RBX: ffff88023363a7e0 RCX: ffff8802336...

...microcode autofs4 processor thermal_sys scsi_dh_emc (O) scsi_dh_rdac(O) scsi_dh_alua(O) scsi_dh_hp_sw(O) scsi_dh(O) mptsas(O) mptscsih(O) mptbase(O) scsi_transport_sas(O) ata_generic ata_piix [last unloaded: scst] Dec 11 17:49:04 SANOS1 kernel: Dec 11 17:49:04 SANOS1 kernel: Pid: 10716, comm: btrfs-endio-wri Tainted: G O 3.5.3-2.10-desktop #3 Supermicro X8DTN+-F/X8DTN+-F Dec 11 17:49:04 SANOS1 kernel: RIP: 0010:[<ffffffffa025c3de>] [<ffffffffa025c3de>] btrfs_release_extent_buffer_page.constprop.47+0x11e/0x130 [btrfs] Dec 11 17:49:04 SANOS1 kernel: RSP: 0018:ffff8804d7cbf900 E...

...btrfs raid6_pq zlib_deflate xor libcrc32c ses enclosure dm_crypt hi d_generic usbhid hid usb_storage firewire_ohci firewire_core crc_itu_t ahci pata_acpi pata_atiixp libahci r8169 May 7 02:09:21 caper kernel: [ 726.749841] CPU 3 May 7 02:09:21 caper kernel: [ 726.749900] Pid: 1703, comm: btrfs-endio-wri Tainted: G C 3.9.0-030900-generic #201304291257 Gigabyte Technology Co., Ltd. GA-MA790GP-UD4H/GA-MA790GP-UD4H May 7 02:09:21 caper kernel: [ 726.750069] RIP: 0010:[<ffffffffa00ea503>] [<ffffffffa00ea503>] __tree_mod_log_rewind+0x253/0x260 [btrfs] May 7 02:09:21 caper k...

...> > I confirmed that if I dont do quota enable/qgroup create, I don''t run > into this issue. So there is somewhere a memory leak with quota-group. > > Below is one stack trace where qgroup accounting code runs into > allocation failure. > > [ 5123.800178] btrfs-endio-wri: page allocation failure: order:0, mode:0x20 > [ 5123.800188] Pid: 27508, comm: btrfs-endio-wri Tainted: GF > O 3.8.0-030800rc5-generic #201301251535 > [ 5123.800190] Call Trace: > [ 5123.800204] [<ffffffff8113a656>] warn_alloc_failed+0xf6/0x150 > [ 5123.800208] [<ffff...

We''re going to use this flag EXTENT_DEFRAG to indicate which range belongs to defragment so that we can implement snapshow-aware defrag: We set the EXTENT_DEFRAG flag when dirtying the extents that need defragmented, so later on writeback thread can differentiate between normal writeback and writeback started by defragmentation. This patch is used for the latter one. Originally patch

...iles, GNOME Zeitgeist, Ubuntu Desktop Couch, Banshee, and Evolution''s datastore.) Workarounds include manually defragmenting your home directory using btrfs fi defragment. Auto-defragment (mount option autodefrag) should solve this problem in 3.0. Symptoms include btrfs-transacti and btrfs-endio-wri taking up a lot of CPU time (in spikes, possibly triggered by syncs). You can use filefrag to locate heavily fragmented files. Symptoms are: Very high load, btrfs-transacti, btrfs-endio-wri and other btfs kernel threads producing high IO load (iotop). top shows low system and user load, but hi...

...1 agpgart i2c_core pcspkr mii snd_page_alloc rng_core video button autofs4 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid10 raid0 raid1 md_mod uhci_hcd ehci_hcd usbcore usb_common processor thermal_sys hwmon [44121.744956] [44121.744966] Pid: 2569, comm: btrfs-endio-meta-3 Not tainted 3.2.9-jng4-default #1 MICRO-STAR INTERNATIONAL CO.,LTD RX945GC/RX945GC [44121.745000] RIP: 0010:[<ffffffffa0321715>] [<ffffffffa0321715>] ClearPageError+0x5/0x5 [btrfs] [44121.745090] RSP: 0018:ffff880032de9e08 EFLAGS: 00010246 [44121.745104] RAX: 0000000000000000 R...

While testing with my buffer read fio jobs[1], I find that btrfs does not perform well enough. Here is a scenario in fio jobs: We have 4 threads, "t1 t2 t3 t4", starting to buffer read a same file, and all of them will race on add_to_page_cache_lru(), and if one thread successfully puts its page into the page cache, it takes the responsibility to read the page''s data. And

Hi - I''m trying btrfs with kernel 2.6.38.8-32.fc15.x86_64 (a Fedora kernel). I''m just doing a tar-to-tar copy onto the file system with compress- force=zlib. Here are some traces of the stuck processes. flush-btrfs-5 seems to be stuck: Jul 8 11:49:40 xback2 kernel: [74920.681032] flush-btrfs-5 D ffff88003c7bae60 0 11712 2 0x00000080 Jul 8 11:49:40 xback2 kernel:

...ed (as well as the btrfs_root/ of course), does this impact on the balance job? - the mounted btrfs devices were mounted using -o space_cache,inode_cache but the btrfs_root/ was not, also, does this impact on the balance job? - about those options, a few months ago, I oftent had btrfs-cache-1/btrfs-endio-met processes taking some cpu/hd time. I was advised to mount -o space_cache,inode_cache, which seems to have quiet the processes down. Are those options still necessary now? - as the job took 60+ hours but the CPU rarely went above 10%, the computer seemed still usable. I left it do its job of...

...dcore dcdbas snd_page_alloc parport_pc ppdev lp parport binfmt_misc zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl(O) ums_realtek uas r8169 btrf s zlib_deflate libcrc32c usb_storage Aug 31 20:30:34 DELL kernel: [34328.155820] Aug 31 20:30:34 DELL kernel: [34328.157974] Pid: 15887, comm: btrfs-endio-met Tainted: P C O 3.2.0-29-generic #46-Ubuntu Dell Inc. De ll System Inspiron N4110/03NKW8 Aug 31 20:30:34 DELL kernel: [34328.160283] RIP: 0010:[<ffffffffa0068439>] [<ffffffffa0068439>] extent_range_uptodate+0x59/0xe0 [btrfs] Aug 31 20:30:34 DELL kernel: [34328.16270...

...q mperf freq_table intel_powerclamp kvm_intel kvm crc32_pclmul microcode ehci_pci ehci_hcd i2c_i801 pcspkr button video i2c_core lpc_ich mfd_core ext4 crc16 jbd2 mbcache raid1 sg sd_mod ahci libahci libata r8169 mii scsi_mod Jul 2 21:43:27 bkp010 kernel: [ 696.773645] CPU: 0 PID: 7863 Comm: btrfs-endio-wri Tainted: G W 3.10.0 #1 Jul 2 21:43:27 bkp010 kernel: [ 696.773926] Hardware name: System manufacturer System Product Name/P8H77-M PRO, BIOS 1101 02/04/2013 Jul 2 21:43:27 bkp010 kernel: [ 696.774141] ffffffffa0761cd8 ffff8807eb111a48 ffffffff81371348 ffff8807eb111a88 Jul 2 21:43...

...[56455.53nked in: scsi_ram lockd nf_conntrack_ipv4 nf_defrag_ipv4 xtfat ioatdma i2c_i801 i7core_edac e1000e microcode edac_core i2c_core igb iTCO_wdt iTCO_vendor_support dca uinput sunrpc usb_stortsas mptscsih mptbase scsi_transport_sas [last unloaded: scsi_wait_sca55.532431] Pid: 4399, comm: btrfs-endio-wri Tainted: G W 3.3.0c-scsiram-btrfs2+ #30 May 22 09:23:57 bigbox kernel: [56455.532486] Call Trace: May 22 09:23:57 bigbox kernel: [56455. [<ffffffff8105471f>] warn_slowpath_common+0x7f/0xc0 May 22 09:23:57 bigbox kernel: [5645] [<ffffffff8105477a>] warn_slowpath_null+0x1a/...

...midi_event snd_seq snd_timer snd_seq_device snd psmouse soundcore snd_page_alloc serio_raw lp parport btrfs zlib_deflate libcrc32c hid_logitech ff_memless usbhid hid i915 r8169 drm_kms_helper drm i2c_algo_bit video pata_jmicron [ 141.952823] [ 141.952830] Pid: 945, comm: btrfs-endio-met Not tainted 3.2.0-8-generic #14-Ubuntu Gigabyte Technology Co., Ltd. G33-DS3R/G33-DS3R [ 141.952873] RIP: 0010:[<ffffffffa018e439>] [<ffffffffa018e439>] extent_range_uptodate+0x59/0xe0 [btrfs] [ 141.952916] RSP: 0018:ffff88021ca0fde0 EFLAGS: 00010246 [ 1...

...running btrfs on one of my machines for a few months now but I keep hitting performance issues. My system quite frequently freezes due to IO starvation. Looking at iotop it tends to show the large majority of the disk I/O being taken up with various btrfs tasks peeking at 7-8M/s, namely: btrfs-endio-wri btrfs-delayed-m btrfs-transacti btrfs-cleaner I''ve already tracked down some sub-optimal performance to the fact I''m hosting a large number of RRDs which I''ve attempted to mitigate with moving them to a nocow sub-volume and performing the appropriate chat...

We only need an async starter if we can''t make a GFP_NOFS allocation in our current path. This is the case for the endio stuff since it happens in IRQ context, but things like the caching thread workers and the delalloc flushers we can easily make this allocation and start threads right away. Also change the worker count for the caching thread pool. Traditionally we limited this to 2 since we took read locks while...