Hi Martin,
В письме от 15 августа 2014 12:25:36 пользователь Martin Steigerwald написал:
> Please include outputs of
>
> btrfs fi sh /
# btrfs fi sh /
Label: none uuid: e1fc1a29-32df-409c-81f6-1b7832643cf6
Total devices 1 FS bytes used 187.81GiB
devid 1 size 221.85GiB used 207.85GiB path /dev/md2
Btrfs v3.14.1
> btrfs fi df /
# btrfs fi df /
Data, single: total=197.82GiB, used=184.34GiB
System, DUP: total=8.00MiB, used=32.00KiB
System, single: total=4.00MiB, used=0.00
Metadata, DUP: total=5.00GiB, used=3.47GiB
Metadata, single: total=8.00MiB, used=0.00
Regards
Valdis
>
> Also I do recommend against using SoftRAID on SSDs until SoftRAID actually
> uses ATA TRIM to sync empty areas of both devices to one another. I am not
> sure whether it does so in 3.14.
>
> Otherwise lets see what BTRFS developers have to say about this backtrace.
> Since it happens with 3.14 it does not seem to be related with the hangs
> after switching BTRFS to workqueues which happen in 3.15 and 3.16. There
> are two patches related to fixing this issue, but the fix may still be
> incomplete.
>
> Thanks,
> Martin
>
> > > > Regards
> > > > Vladislav
> > > >
> > > > cat > messages
> > > >
> > > > Aug 12 06:25:45 srv1 rsyslogd: [origin software="rsyslogd"
> > > > swVersion="7.6.3" x-pid="1676" x-info="http://www.rsyslog.com";]
> > > > rsyslogd
> > > > was HUPed
> > > > Aug 12 06:28:36 srv1 rsyslogd-2359: action 'action 17' resumed (module
> > > > 'builtin:ompipe') [try http://www.rsyslog.com/e/2359 ]
> > > > Aug 12 07:02:04 srv1 rsyslogd-2007: action 'action 17' suspended, next
> > > > retry is Tue Aug 12 07:02:34 2014 [try http://www.rsyslog.com/e/2007 ]
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598939] mysqld D
> > > > ffff88040b2a2e38 0 11941 4011 0x00000000
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598941] ffff88040b2a2a20
> > > > 0000000000000086 0000000000014380 ffff880428eeffd8
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598943] 0000000000014380
> > > > ffff88040b2a2a20 ffff88081ea54c10 ffff88081edc7608
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598944] 0000000000000002
> > > > ffffffff81121000 ffff880428eef6d0 ffff880428eef7b0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598946] Call Trace:
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598950] [<ffffffff81121000>] ?
> > > > wait_on_page_read+0x60/0x60
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598954] [<ffffffff814c7e34>] ?
> > > > io_schedule+0x94/0x130
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598955] [<ffffffff81121005>] ?
> > > > sleep_on_page+0x5/0x10
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598956] [<ffffffff814c81a4>] ?
> > > > __wait_on_bit+0x54/0x80
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598960] [<ffffffff8109f510>] ?
> > > > autoremove_wake_function+0x30/0x30
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598965] [<ffffffff811345b7>] ?
> > > > shrink_inactive_list+0x187/0x4d0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598968] [<ffffffff811352de>] ?
> > > > shrink_zone+0x5e/0x180
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598971] [<ffffffff81135e45>] ?
> > > > try_to_free_mem_cgroup_pages+0xc5/0x150
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598975] [<ffffffff8117f82f>] ?
> > > > __mem_cgroup_try_charge+0x55f/0x6a0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598990] [<ffffffff8117ffdd>] ?
> > > > mem_cgroup_charge_common+0x3d/0x90
> > > > Aug 12 09:03:41 srv1 kernel: [163223.598995] [<ffffffff81121d41>] ?
> > > > add_to_page_cache_lru+0x11/0x40
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599002] [<ffffffffa023f80e>] ?
> > > > prepare_pages.isra.19+0xae/0x170 [btrfs]
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599012] [<ffffffffa0240925>] ?
> > > > btrfs_file_aio_write+0x215/0x550 [btrfs]
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599015] [<ffffffff811876a7>] ?
> > > > do_sync_write+0x57/0x90
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599018] [<ffffffff8118876d>] ?
> > > > SyS_write+0x3d/0xa0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599054] ffff8807f6a1b1f0
> > > > 0000000000000086 0000000000014380 ffff88053c2c3fd8
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599057] 0000000000000002
> > > > ffffffff81121000 ffff88053c2c3650 ffff88053c2c3730
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599059] [<ffffffff81121000>] ?
> > > > wait_on_page_read+0x60/0x60
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599062] [<ffffffff81121005>] ?
> > > > sleep_on_page+0x5/0x10
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599064] [<ffffffff81120e0f>] ?
> > > > wait_on_page_bit+0x7f/0x90
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599067] [<ffffffff81133bb7>] ?
> > > > shrink_page_list+0x667/0xa50
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599069] [<ffffffff81134f69>] ?
> > > > shrink_lruvec+0x2e9/0x600
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599072] [<ffffffff811357a0>] ?
> > > > do_try_to_free_pages+0xe0/0x550
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599076] [<ffffffff81135e45>] ?
> > > > try_to_free_mem_cgroup_pages+0xc5/0x150
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599079] [<ffffffff8117f82f>] ?
> > > > __mem_cgroup_try_charge+0x55f/0x6a0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599082] [<ffffffff8117ffdd>] ?
> > > > mem_cgroup_charge_common+0x3d/0x90
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599084] [<ffffffff81121c0f>] ?
> > > > add_to_page_cache_locked+0x2f/0x150
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599091] [<ffffffffa024e127>] ?
> > > > extent_readpages+0xb7/0x190 [btrfs]
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599098] [<ffffffff8112d503>] ?
> > > > __do_page_cache_readahead+0x193/0x240
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599101] [<ffffffff811238d9>] ?
> > > > generic_file_aio_read+0x459/0x6d0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599103] [<ffffffff81187c41>] ?
> > > > vfs_read+0x91/0x160
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599106] [<ffffffff814d2cf9>] ?
> > > > system_call_fastpath+0x16/0x1b
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599168] kworker/u16:2 D
> > > > ffff880730ea0868 0 27951 2 0x00000000
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599172] ffff880730ea0450
> > > > 0000000000000046 0000000000014380 ffff88000721ffd8
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599174] ffff88000721f880
> > > > 0000000000000002 ffffffff81121000 ffff8805827e3d98
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599176] [<ffffffff81121000>] ?
> > > > wait_on_page_read+0x60/0x60
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599179] [<ffffffff81121005>] ?
> > > > sleep_on_page+0x5/0x10
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599181] [<ffffffff811210f5>] ?
> > > > __lock_page+0x65/0x70
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599189] [<ffffffffa0248fcd>] ?
> > > > lock_delalloc_pages+0x10d/0x190 [btrfs]
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599199] [<ffffffffa024b95f>] ?
> > > > submit_extent_page.isra.36+0x1af/0x230 [btrfs]
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599209] [<ffffffffa024b640>] ?
> > > > end_extent_writepage+0x90/0x90 [btrfs]
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599215] [<ffffffffa024ce97>] ?
> > > > extent_write_cache_pages.isra.29.constprop.49+0x207/0x340 [btrfs]
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599225] [<ffffffffa0233960>] ?
> > > > btrfs_submit_direct+0x6b0/0x6b0 [btrfs]
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599229] [<ffffffff811ad63c>] ?
> > > > writeback_sb_inodes+0x19c/0x3d0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599232] [<ffffffff811adb73>] ?
> > > > wb_writeback+0x243/0x2d0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599236] [<ffffffff8101255b>] ?
> > > > __switch_to+0x11b/0x4b0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599240] [<ffffffff8107a7e6>] ?
> > > > worker_thread+0x116/0x3b0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599243] [<ffffffff81080a68>] ?
> > > > kthread+0xb8/0xd0
> > > > Aug 12 09:03:41 srv1 kernel: [163223.599245] [<ffffffff814d2c4c>] ?
> > > > ret_from_fork+0x7c/0xb0
> > > > Aug 12 09:05:41 srv1 kernel: [163343.527812] Call Trace:
> > > >
> > > > Grus
> > > > Valdis
> > >
> > > --
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