On 2017-02-03 02:04, Darrick J. Wong wrote:
> Hi list,
>
> So I've noticed that my laptop consistently fails to suspend with:
>
> [1183646.459310] Freezing of tasks failed after 20.006 seconds (1 tasks refusing to freeze, wq_busy=0):
> [1183646.459348] xfsaild/dm-1 D 0 1767 2 0x00000000
I see what to me seem similar events on my desktop machine, occasionally, but a second attempt succeeds; it is a different function, but xfs is involved:
<0.6> 2017-01-14 19:50:38 Telcontar kernel - - - [748246.597459] PM: Syncing filesystems ... done.
<0.6> 2017-01-14 19:50:38 Telcontar kernel - - - [748247.261177] Freezing user space processes ... (elapsed 0.002 seconds) done.
<0.7> 2017-01-14 19:50:38 Telcontar kernel - - - [748247.263791] PM: Marking nosave pages: [mem 0x00000000-0x00000fff]
<0.7> 2017-01-14 19:50:38 Telcontar kernel - - - [748247.263797] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
<0.7> 2017-01-14 19:50:38 Telcontar kernel - - - [748247.263800] PM: Marking nosave pages: [mem 0xbff90000-0xffffffff]
<0.7> 2017-01-14 19:50:38 Telcontar kernel - - - [748247.264421] PM: Basic memory bitmaps created
<0.6> 2017-01-14 19:50:38 Telcontar kernel - - - [748247.264453] PM: Preallocating image memory... done (allocated 822838 pages)
<0.6> 2017-01-14 19:50:38 Telcontar kernel - - - [748249.186840] PM: Allocated 3291352 kbytes in 1.92 seconds (1714.24 MB/s)
<0.6> 2017-01-14 19:50:38 Telcontar kernel - - - [748249.186841] Freezing remaining freezable tasks ...
<0.3> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.189941] Freezing of tasks failed after 20.003 seconds (1 tasks refusing to freeze, wq_busy=0):
<0.6> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.189944] kswapd0 D ffff88023fd95c40 0 44 2 0x00000000
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.189948] ffff880235ed3848 ffff88017ee58340 ffff880235eccbc0 ffff880235ed4000
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.189952] ffff880235eccbc0 ffff8801fa1a2498 ffff8800ba8c5340 ffff8801fa1a23c0
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.189956] ffff880235ed3860 ffffffff8160680c 7fffffffffffffff ffff880235ed3908
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.189959] Call Trace:
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.189970] [<ffffffff8160680c>] schedule+0x3c/0x90
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.189975] [<ffffffff816095fa>] schedule_timeout+0x25a/0x2f0
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.189978] [<ffffffff816071f6>] wait_for_completion+0xc6/0x140
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190019] [<ffffffffa0edef9c>] xfs_buf_submit_wait+0x7c/0x250 [xfs]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190051] [<ffffffffa0edf2b1>] xfs_buf_read_map+0x111/0x1a0 [xfs]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190075] [<ffffffffa0f0c6ed>] xfs_trans_read_buf_map+0xfd/0x330 [xfs]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190097] [<ffffffffa0ed1aae>] xfs_imap_to_bp+0x5e/0xd0 [xfs]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190120] [<ffffffffa0ef3e0d>] xfs_iflush+0xcd/0x230 [xfs]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190142] [<ffffffffa0ee7653>] xfs_reclaim_inode+0x53/0x370 [xfs]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190164] [<ffffffffa0ee7b69>] xfs_reclaim_inodes_ag+0x1f9/0x2f0 [xfs]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190186] [<ffffffffa0ee8871>] xfs_reclaim_inodes_nr+0x31/0x40 [xfs]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190191] [<ffffffff81208a36>] super_cache_scan+0x176/0x180
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190195] [<ffffffff8119cb35>] shrink_slab.part.40+0x205/0x3e0
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190199] [<ffffffff811a1368>] shrink_zone+0x268/0x280
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190202] [<ffffffff811a2433>] kswapd+0x4a3/0x960
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190206] [<ffffffff8109d308>] kthread+0xc8/0xe0
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.190209] [<ffffffff8160ac8f>] ret_from_fork+0x3f/0x70
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.191726] DWARF2 unwinder stuck at ret_from_fork+0x3f/0x70
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.191727]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.191728] Leftover inexact backtrace:
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.191728]
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.191730] [<ffffffff8109d240>] ? kthread_park+0x50/0x50
<0.4> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.191774]
<0.6> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.192073] Restarting kernel threads ... done.
<0.7> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.298537] PM: Basic memory bitmaps freed
<0.6> 2017-01-14 19:50:38 Telcontar kernel - - - [748269.300160] Restarting tasks ... done.
The kernel was 4.4.36-8-default #1 SMP Fri Dec 9
Distribution is openSUSE Leap 42.2
I have not reported this yet in Bugzilla, but seeing this post I thought I might as well tell.
You will know better than me what to make of it.
--
Cheers / Saludos,
Carlos E. R.
(from 42.2 x86_64 "Malachite" (Minas Tirith))
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