Hung task log

dmesg.log

[ 1806.562345] INFO: task dpkg:8812 blocked for more than 120 seconds.
[ 1806.562349]       Tainted: P           OE   4.2.0-16-generic #19-Ubuntu
[ 1806.562350] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1806.562352] dpkg            D ffff88007e716640     0  8812   8790 0x00000000
[ 1806.562355]  ffff880022acb248 0000000000000086 ffff88007b4d2940 ffff88000060d280
[ 1806.562357]  ffff880022acb278 ffff880022acc000 ffff88003014a064 ffff88000060d280
[ 1806.562359]  00000000ffffffff ffff88003014a068 ffff880022acb268 ffffffff817eb9a7
[ 1806.562360] Call Trace:
[ 1806.562367]  [<ffffffff817eb9a7>] schedule+0x37/0x80
[ 1806.562369]  [<ffffffff817ebc5e>] schedule_preempt_disabled+0xe/0x10
[ 1806.562372]  [<ffffffff817ed835>] __mutex_lock_slowpath+0xb5/0x120
[ 1806.562373]  [<ffffffff817ed8c3>] mutex_lock+0x23/0x40
[ 1806.562411]  [<ffffffffc051ca76>] zfs_zinactive+0x56/0x1a0 [zfs]
[ 1806.562436]  [<ffffffffc05162f1>] zfs_inactive+0x61/0x270 [zfs]
[ 1806.562440]  [<ffffffff8119406e>] ? truncate_pagecache+0x5e/0x70
[ 1806.562464]  [<ffffffffc052d4e7>] zpl_evict_inode+0x47/0x60 [zfs]
[ 1806.562466]  [<ffffffff8121860a>] evict+0xba/0x180
[ 1806.562468]  [<ffffffff8121870a>] dispose_list+0x3a/0x50
[ 1806.562470]  [<ffffffff812197fa>] prune_icache_sb+0x5a/0x80
[ 1806.562472]  [<ffffffff8120087f>] super_cache_scan+0x14f/0x1a0
[ 1806.562474]  [<ffffffff81194e2e>] shrink_slab+0x20e/0x3b0
[ 1806.562476]  [<ffffffff81199649>] shrink_zone+0x2b9/0x2d0
[ 1806.562479]  [<ffffffff811997cd>] do_try_to_free_pages+0x16d/0x400
[ 1806.562481]  [<ffffffff81199b6a>] try_to_free_pages+0x10a/0x150
[ 1806.562483]  [<ffffffff8118b96b>] __alloc_pages_nodemask+0x5eb/0xa10
[ 1806.562486]  [<ffffffff811d2ff1>] alloc_pages_current+0x91/0x100
[ 1806.562487]  [<ffffffff811dc4e8>] new_slab+0x368/0x450
[ 1806.562489]  [<ffffffff811dd54f>] __slab_alloc+0x27f/0x4b0
[ 1806.562493]  [<ffffffffc03a3af3>] ? spl_kmem_zalloc+0xa3/0x180 [spl]
[ 1806.562495]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 1806.562506]  [<ffffffffc048064d>] ? dbuf_read+0x66d/0x860 [zfs]
[ 1806.562508]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 1806.562510]  [<ffffffff811df715>] __kmalloc_node+0xb5/0x2e0
[ 1806.562513]  [<ffffffffc03a3af3>] spl_kmem_zalloc+0xa3/0x180 [spl]
[ 1806.562525]  [<ffffffffc0480dd1>] dbuf_hold_impl+0x41/0xa0 [zfs]
[ 1806.562536]  [<ffffffffc048112f>] dbuf_hold+0x2f/0x60 [zfs]
[ 1806.562551]  [<ffffffffc049a4e5>] dnode_hold_impl+0x85/0x4e0 [zfs]
[ 1806.562554]  [<ffffffffc03a4c52>] ? spl_kmem_cache_alloc+0x72/0x7e0 [spl]
[ 1806.562569]  [<ffffffffc049a959>] dnode_hold+0x19/0x20 [zfs]
[ 1806.562582]  [<ffffffffc04894d6>] dmu_bonus_hold+0x36/0x280 [zfs]
[ 1806.562601]  [<ffffffffc04c1bde>] sa_buf_hold+0xe/0x10 [zfs]
[ 1806.562626]  [<ffffffffc051c184>] zfs_zget+0x1b4/0x330 [zfs]
[ 1806.562650]  [<ffffffffc05258a4>] ? zio_rewrite+0x64/0x70 [zfs]
[ 1806.562674]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 1806.562698]  [<ffffffffc0517b23>] zfs_get_data+0x63/0x2f0 [zfs]
[ 1806.562722]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 1806.562746]  [<ffffffffc052b6c0>] ? zpl_write_common_iovec+0xe0/0xe0 [zfs]
[ 1806.562771]  [<ffffffffc051fdf0>] zil_commit.part.11+0x630/0x7e0 [zfs]
[ 1806.562795]  [<ffffffffc051ffb7>] zil_commit+0x17/0x20 [zfs]
[ 1806.562819]  [<ffffffffc052b9c9>] zpl_writepages+0xd9/0x170 [zfs]
[ 1806.562821]  [<ffffffff811903be>] do_writepages+0x1e/0x30
[ 1806.562823]  [<ffffffff8118335c>] __filemap_fdatawrite_range+0xcc/0x100
[ 1806.562825]  [<ffffffff81183463>] filemap_fdatawrite_range+0x13/0x20
[ 1806.562827]  [<ffffffff81230175>] SyS_sync_file_range+0x145/0x160
[ 1806.562830]  [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 1926.554936] INFO: task dpkg:8812 blocked for more than 120 seconds.
[ 1926.554940]       Tainted: P           OE   4.2.0-16-generic #19-Ubuntu
[ 1926.554941] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1926.554943] dpkg            D ffff88007e716640     0  8812   8790 0x00000000
[ 1926.554946]  ffff880022acb248 0000000000000086 ffff88007b4d2940 ffff88000060d280
[ 1926.554948]  ffff880022acb278 ffff880022acc000 ffff88003014a064 ffff88000060d280
[ 1926.554949]  00000000ffffffff ffff88003014a068 ffff880022acb268 ffffffff817eb9a7
[ 1926.554951] Call Trace:
[ 1926.554958]  [<ffffffff817eb9a7>] schedule+0x37/0x80
[ 1926.554960]  [<ffffffff817ebc5e>] schedule_preempt_disabled+0xe/0x10
[ 1926.554962]  [<ffffffff817ed835>] __mutex_lock_slowpath+0xb5/0x120
[ 1926.554964]  [<ffffffff817ed8c3>] mutex_lock+0x23/0x40
[ 1926.555002]  [<ffffffffc051ca76>] zfs_zinactive+0x56/0x1a0 [zfs]
[ 1926.555027]  [<ffffffffc05162f1>] zfs_inactive+0x61/0x270 [zfs]
[ 1926.555030]  [<ffffffff8119406e>] ? truncate_pagecache+0x5e/0x70
[ 1926.555054]  [<ffffffffc052d4e7>] zpl_evict_inode+0x47/0x60 [zfs]
[ 1926.555056]  [<ffffffff8121860a>] evict+0xba/0x180
[ 1926.555058]  [<ffffffff8121870a>] dispose_list+0x3a/0x50
[ 1926.555059]  [<ffffffff812197fa>] prune_icache_sb+0x5a/0x80
[ 1926.555062]  [<ffffffff8120087f>] super_cache_scan+0x14f/0x1a0
[ 1926.555064]  [<ffffffff81194e2e>] shrink_slab+0x20e/0x3b0
[ 1926.555066]  [<ffffffff81199649>] shrink_zone+0x2b9/0x2d0
[ 1926.555068]  [<ffffffff811997cd>] do_try_to_free_pages+0x16d/0x400
[ 1926.555070]  [<ffffffff81199b6a>] try_to_free_pages+0x10a/0x150
[ 1926.555072]  [<ffffffff8118b96b>] __alloc_pages_nodemask+0x5eb/0xa10
[ 1926.555075]  [<ffffffff811d2ff1>] alloc_pages_current+0x91/0x100
[ 1926.555077]  [<ffffffff811dc4e8>] new_slab+0x368/0x450
[ 1926.555078]  [<ffffffff811dd54f>] __slab_alloc+0x27f/0x4b0
[ 1926.555083]  [<ffffffffc03a3af3>] ? spl_kmem_zalloc+0xa3/0x180 [spl]
[ 1926.555085]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 1926.555097]  [<ffffffffc048064d>] ? dbuf_read+0x66d/0x860 [zfs]
[ 1926.555098]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 1926.555100]  [<ffffffff811df715>] __kmalloc_node+0xb5/0x2e0
[ 1926.555103]  [<ffffffffc03a3af3>] spl_kmem_zalloc+0xa3/0x180 [spl]
[ 1926.555115]  [<ffffffffc0480dd1>] dbuf_hold_impl+0x41/0xa0 [zfs]
[ 1926.555127]  [<ffffffffc048112f>] dbuf_hold+0x2f/0x60 [zfs]
[ 1926.555142]  [<ffffffffc049a4e5>] dnode_hold_impl+0x85/0x4e0 [zfs]
[ 1926.555145]  [<ffffffffc03a4c52>] ? spl_kmem_cache_alloc+0x72/0x7e0 [spl]
[ 1926.555160]  [<ffffffffc049a959>] dnode_hold+0x19/0x20 [zfs]
[ 1926.555172]  [<ffffffffc04894d6>] dmu_bonus_hold+0x36/0x280 [zfs]
[ 1926.555192]  [<ffffffffc04c1bde>] sa_buf_hold+0xe/0x10 [zfs]
[ 1926.555216]  [<ffffffffc051c184>] zfs_zget+0x1b4/0x330 [zfs]
[ 1926.555240]  [<ffffffffc05258a4>] ? zio_rewrite+0x64/0x70 [zfs]
[ 1926.555264]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 1926.555288]  [<ffffffffc0517b23>] zfs_get_data+0x63/0x2f0 [zfs]
[ 1926.555312]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 1926.555336]  [<ffffffffc052b6c0>] ? zpl_write_common_iovec+0xe0/0xe0 [zfs]
[ 1926.555360]  [<ffffffffc051fdf0>] zil_commit.part.11+0x630/0x7e0 [zfs]
[ 1926.555384]  [<ffffffffc051ffb7>] zil_commit+0x17/0x20 [zfs]
[ 1926.555408]  [<ffffffffc052b9c9>] zpl_writepages+0xd9/0x170 [zfs]
[ 1926.555410]  [<ffffffff811903be>] do_writepages+0x1e/0x30
[ 1926.555412]  [<ffffffff8118335c>] __filemap_fdatawrite_range+0xcc/0x100
[ 1926.555414]  [<ffffffff81183463>] filemap_fdatawrite_range+0x13/0x20
[ 1926.555416]  [<ffffffff81230175>] SyS_sync_file_range+0x145/0x160
[ 1926.555419]  [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 2046.550374] INFO: task dpkg:8812 blocked for more than 120 seconds.
[ 2046.550377]       Tainted: P           OE   4.2.0-16-generic #19-Ubuntu
[ 2046.550378] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2046.550379] dpkg            D ffff88007e716640     0  8812   8790 0x00000000
[ 2046.550382]  ffff880022acb248 0000000000000086 ffff88007b4d2940 ffff88000060d280
[ 2046.550384]  ffff880022acb278 ffff880022acc000 ffff88003014a064 ffff88000060d280
[ 2046.550385]  00000000ffffffff ffff88003014a068 ffff880022acb268 ffffffff817eb9a7
[ 2046.550386] Call Trace:
[ 2046.550392]  [<ffffffff817eb9a7>] schedule+0x37/0x80
[ 2046.550393]  [<ffffffff817ebc5e>] schedule_preempt_disabled+0xe/0x10
[ 2046.550396]  [<ffffffff817ed835>] __mutex_lock_slowpath+0xb5/0x120
[ 2046.550397]  [<ffffffff817ed8c3>] mutex_lock+0x23/0x40
[ 2046.550428]  [<ffffffffc051ca76>] zfs_zinactive+0x56/0x1a0 [zfs]
[ 2046.550446]  [<ffffffffc05162f1>] zfs_inactive+0x61/0x270 [zfs]
[ 2046.550449]  [<ffffffff8119406e>] ? truncate_pagecache+0x5e/0x70
[ 2046.550467]  [<ffffffffc052d4e7>] zpl_evict_inode+0x47/0x60 [zfs]
[ 2046.550469]  [<ffffffff8121860a>] evict+0xba/0x180
[ 2046.550470]  [<ffffffff8121870a>] dispose_list+0x3a/0x50
[ 2046.550472]  [<ffffffff812197fa>] prune_icache_sb+0x5a/0x80
[ 2046.550473]  [<ffffffff8120087f>] super_cache_scan+0x14f/0x1a0
[ 2046.550475]  [<ffffffff81194e2e>] shrink_slab+0x20e/0x3b0
[ 2046.550477]  [<ffffffff81199649>] shrink_zone+0x2b9/0x2d0
[ 2046.550479]  [<ffffffff811997cd>] do_try_to_free_pages+0x16d/0x400
[ 2046.550480]  [<ffffffff81199b6a>] try_to_free_pages+0x10a/0x150
[ 2046.550482]  [<ffffffff8118b96b>] __alloc_pages_nodemask+0x5eb/0xa10
[ 2046.550484]  [<ffffffff811d2ff1>] alloc_pages_current+0x91/0x100
[ 2046.550485]  [<ffffffff811dc4e8>] new_slab+0x368/0x450
[ 2046.550486]  [<ffffffff811dd54f>] __slab_alloc+0x27f/0x4b0
[ 2046.550490]  [<ffffffffc03a3af3>] ? spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2046.550491]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2046.550499]  [<ffffffffc048064d>] ? dbuf_read+0x66d/0x860 [zfs]
[ 2046.550500]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2046.550502]  [<ffffffff811df715>] __kmalloc_node+0xb5/0x2e0
[ 2046.550504]  [<ffffffffc03a3af3>] spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2046.550512]  [<ffffffffc0480dd1>] dbuf_hold_impl+0x41/0xa0 [zfs]
[ 2046.550519]  [<ffffffffc048112f>] dbuf_hold+0x2f/0x60 [zfs]
[ 2046.550529]  [<ffffffffc049a4e5>] dnode_hold_impl+0x85/0x4e0 [zfs]
[ 2046.550532]  [<ffffffffc03a4c52>] ? spl_kmem_cache_alloc+0x72/0x7e0 [spl]
[ 2046.550541]  [<ffffffffc049a959>] dnode_hold+0x19/0x20 [zfs]
[ 2046.550550]  [<ffffffffc04894d6>] dmu_bonus_hold+0x36/0x280 [zfs]
[ 2046.550563]  [<ffffffffc04c1bde>] sa_buf_hold+0xe/0x10 [zfs]
[ 2046.550581]  [<ffffffffc051c184>] zfs_zget+0x1b4/0x330 [zfs]
[ 2046.550598]  [<ffffffffc05258a4>] ? zio_rewrite+0x64/0x70 [zfs]
[ 2046.550615]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2046.550631]  [<ffffffffc0517b23>] zfs_get_data+0x63/0x2f0 [zfs]
[ 2046.550648]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2046.550664]  [<ffffffffc052b6c0>] ? zpl_write_common_iovec+0xe0/0xe0 [zfs]
[ 2046.550680]  [<ffffffffc051fdf0>] zil_commit.part.11+0x630/0x7e0 [zfs]
[ 2046.550698]  [<ffffffffc051ffb7>] zil_commit+0x17/0x20 [zfs]
[ 2046.550718]  [<ffffffffc052b9c9>] zpl_writepages+0xd9/0x170 [zfs]
[ 2046.550720]  [<ffffffff811903be>] do_writepages+0x1e/0x30
[ 2046.550722]  [<ffffffff8118335c>] __filemap_fdatawrite_range+0xcc/0x100
[ 2046.550724]  [<ffffffff81183463>] filemap_fdatawrite_range+0x13/0x20
[ 2046.550725]  [<ffffffff81230175>] SyS_sync_file_range+0x145/0x160
[ 2046.550727]  [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 2166.547867] INFO: task dpkg:8812 blocked for more than 120 seconds.
[ 2166.547871]       Tainted: P           OE   4.2.0-16-generic #19-Ubuntu
[ 2166.547872] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2166.547873] dpkg            D ffff88007e716640     0  8812   8790 0x00000000
[ 2166.547877]  ffff880022acb248 0000000000000086 ffff88007b4d2940 ffff88000060d280
[ 2166.547879]  ffff880022acb278 ffff880022acc000 ffff88003014a064 ffff88000060d280
[ 2166.547880]  00000000ffffffff ffff88003014a068 ffff880022acb268 ffffffff817eb9a7
[ 2166.547882] Call Trace:
[ 2166.547889]  [<ffffffff817eb9a7>] schedule+0x37/0x80
[ 2166.547891]  [<ffffffff817ebc5e>] schedule_preempt_disabled+0xe/0x10
[ 2166.547893]  [<ffffffff817ed835>] __mutex_lock_slowpath+0xb5/0x120
[ 2166.547895]  [<ffffffff817ed8c3>] mutex_lock+0x23/0x40
[ 2166.547934]  [<ffffffffc051ca76>] zfs_zinactive+0x56/0x1a0 [zfs]
[ 2166.547957]  [<ffffffffc05162f1>] zfs_inactive+0x61/0x270 [zfs]
[ 2166.547960]  [<ffffffff8119406e>] ? truncate_pagecache+0x5e/0x70
[ 2166.547983]  [<ffffffffc052d4e7>] zpl_evict_inode+0x47/0x60 [zfs]
[ 2166.547985]  [<ffffffff8121860a>] evict+0xba/0x180
[ 2166.547987]  [<ffffffff8121870a>] dispose_list+0x3a/0x50
[ 2166.547988]  [<ffffffff812197fa>] prune_icache_sb+0x5a/0x80
[ 2166.547991]  [<ffffffff8120087f>] super_cache_scan+0x14f/0x1a0
[ 2166.547993]  [<ffffffff81194e2e>] shrink_slab+0x20e/0x3b0
[ 2166.547996]  [<ffffffff81199649>] shrink_zone+0x2b9/0x2d0
[ 2166.547998]  [<ffffffff811997cd>] do_try_to_free_pages+0x16d/0x400
[ 2166.548000]  [<ffffffff81199b6a>] try_to_free_pages+0x10a/0x150
[ 2166.548002]  [<ffffffff8118b96b>] __alloc_pages_nodemask+0x5eb/0xa10
[ 2166.548005]  [<ffffffff811d2ff1>] alloc_pages_current+0x91/0x100
[ 2166.548007]  [<ffffffff811dc4e8>] new_slab+0x368/0x450
[ 2166.548008]  [<ffffffff811dd54f>] __slab_alloc+0x27f/0x4b0
[ 2166.548012]  [<ffffffffc03a3af3>] ? spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2166.548014]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2166.548023]  [<ffffffffc048064d>] ? dbuf_read+0x66d/0x860 [zfs]
[ 2166.548025]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2166.548027]  [<ffffffff811df715>] __kmalloc_node+0xb5/0x2e0
[ 2166.548030]  [<ffffffffc03a3af3>] spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2166.548039]  [<ffffffffc0480dd1>] dbuf_hold_impl+0x41/0xa0 [zfs]
[ 2166.548048]  [<ffffffffc048112f>] dbuf_hold+0x2f/0x60 [zfs]
[ 2166.548061]  [<ffffffffc049a4e5>] dnode_hold_impl+0x85/0x4e0 [zfs]
[ 2166.548064]  [<ffffffffc03a4c52>] ? spl_kmem_cache_alloc+0x72/0x7e0 [spl]
[ 2166.548076]  [<ffffffffc049a959>] dnode_hold+0x19/0x20 [zfs]
[ 2166.548087]  [<ffffffffc04894d6>] dmu_bonus_hold+0x36/0x280 [zfs]
[ 2166.548104]  [<ffffffffc04c1bde>] sa_buf_hold+0xe/0x10 [zfs]
[ 2166.548126]  [<ffffffffc051c184>] zfs_zget+0x1b4/0x330 [zfs]
[ 2166.548148]  [<ffffffffc05258a4>] ? zio_rewrite+0x64/0x70 [zfs]
[ 2166.548169]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2166.548190]  [<ffffffffc0517b23>] zfs_get_data+0x63/0x2f0 [zfs]
[ 2166.548211]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2166.548232]  [<ffffffffc052b6c0>] ? zpl_write_common_iovec+0xe0/0xe0 [zfs]
[ 2166.548252]  [<ffffffffc051fdf0>] zil_commit.part.11+0x630/0x7e0 [zfs]
[ 2166.548272]  [<ffffffffc051ffb7>] zil_commit+0x17/0x20 [zfs]
[ 2166.548293]  [<ffffffffc052b9c9>] zpl_writepages+0xd9/0x170 [zfs]
[ 2166.548295]  [<ffffffff811903be>] do_writepages+0x1e/0x30
[ 2166.548297]  [<ffffffff8118335c>] __filemap_fdatawrite_range+0xcc/0x100
[ 2166.548299]  [<ffffffff81183463>] filemap_fdatawrite_range+0x13/0x20
[ 2166.548301]  [<ffffffff81230175>] SyS_sync_file_range+0x145/0x160
[ 2166.548303]  [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 2286.546490] INFO: task dpkg:8812 blocked for more than 120 seconds.
[ 2286.546500]       Tainted: P           OE   4.2.0-16-generic #19-Ubuntu
[ 2286.546503] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2286.546507] dpkg            D ffff88007e716640     0  8812   8790 0x00000000
[ 2286.546517]  ffff880022acb248 0000000000000086 ffff88007b4d2940 ffff88000060d280
[ 2286.546524]  ffff880022acb278 ffff880022acc000 ffff88003014a064 ffff88000060d280
[ 2286.546529]  00000000ffffffff ffff88003014a068 ffff880022acb268 ffffffff817eb9a7
[ 2286.546535] Call Trace:
[ 2286.546551]  [<ffffffff817eb9a7>] schedule+0x37/0x80
[ 2286.546557]  [<ffffffff817ebc5e>] schedule_preempt_disabled+0xe/0x10
[ 2286.546565]  [<ffffffff817ed835>] __mutex_lock_slowpath+0xb5/0x120
[ 2286.546572]  [<ffffffff817ed8c3>] mutex_lock+0x23/0x40
[ 2286.546678]  [<ffffffffc051ca76>] zfs_zinactive+0x56/0x1a0 [zfs]
[ 2286.546762]  [<ffffffffc05162f1>] zfs_inactive+0x61/0x270 [zfs]
[ 2286.546774]  [<ffffffff8119406e>] ? truncate_pagecache+0x5e/0x70
[ 2286.546857]  [<ffffffffc052d4e7>] zpl_evict_inode+0x47/0x60 [zfs]
[ 2286.546863]  [<ffffffff8121860a>] evict+0xba/0x180
[ 2286.546868]  [<ffffffff8121870a>] dispose_list+0x3a/0x50
[ 2286.546873]  [<ffffffff812197fa>] prune_icache_sb+0x5a/0x80
[ 2286.546880]  [<ffffffff8120087f>] super_cache_scan+0x14f/0x1a0
[ 2286.546887]  [<ffffffff81194e2e>] shrink_slab+0x20e/0x3b0
[ 2286.546895]  [<ffffffff81199649>] shrink_zone+0x2b9/0x2d0
[ 2286.546903]  [<ffffffff811997cd>] do_try_to_free_pages+0x16d/0x400
[ 2286.546910]  [<ffffffff81199b6a>] try_to_free_pages+0x10a/0x150
[ 2286.546916]  [<ffffffff8118b96b>] __alloc_pages_nodemask+0x5eb/0xa10
[ 2286.546924]  [<ffffffff811d2ff1>] alloc_pages_current+0x91/0x100
[ 2286.546929]  [<ffffffff811dc4e8>] new_slab+0x368/0x450
[ 2286.546934]  [<ffffffff811dd54f>] __slab_alloc+0x27f/0x4b0
[ 2286.546946]  [<ffffffffc03a3af3>] ? spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2286.546953]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2286.546987]  [<ffffffffc048064d>] ? dbuf_read+0x66d/0x860 [zfs]
[ 2286.546994]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2286.546999]  [<ffffffff811df715>] __kmalloc_node+0xb5/0x2e0
[ 2286.547009]  [<ffffffffc03a3af3>] spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2286.547043]  [<ffffffffc0480dd1>] dbuf_hold_impl+0x41/0xa0 [zfs]
[ 2286.547075]  [<ffffffffc048112f>] dbuf_hold+0x2f/0x60 [zfs]
[ 2286.547122]  [<ffffffffc049a4e5>] dnode_hold_impl+0x85/0x4e0 [zfs]
[ 2286.547132]  [<ffffffffc03a4c52>] ? spl_kmem_cache_alloc+0x72/0x7e0 [spl]
[ 2286.547176]  [<ffffffffc049a959>] dnode_hold+0x19/0x20 [zfs]
[ 2286.547213]  [<ffffffffc04894d6>] dmu_bonus_hold+0x36/0x280 [zfs]
[ 2286.547276]  [<ffffffffc04c1bde>] sa_buf_hold+0xe/0x10 [zfs]
[ 2286.547363]  [<ffffffffc051c184>] zfs_zget+0x1b4/0x330 [zfs]
[ 2286.547453]  [<ffffffffc05258a4>] ? zio_rewrite+0x64/0x70 [zfs]
[ 2286.547541]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2286.547628]  [<ffffffffc0517b23>] zfs_get_data+0x63/0x2f0 [zfs]
[ 2286.547715]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2286.547803]  [<ffffffffc052b6c0>] ? zpl_write_common_iovec+0xe0/0xe0 [zfs]
[ 2286.547890]  [<ffffffffc051fdf0>] zil_commit.part.11+0x630/0x7e0 [zfs]
[ 2286.547978]  [<ffffffffc051ffb7>] zil_commit+0x17/0x20 [zfs]
[ 2286.548064]  [<ffffffffc052b9c9>] zpl_writepages+0xd9/0x170 [zfs]
[ 2286.548071]  [<ffffffff811903be>] do_writepages+0x1e/0x30
[ 2286.548079]  [<ffffffff8118335c>] __filemap_fdatawrite_range+0xcc/0x100
[ 2286.548086]  [<ffffffff81183463>] filemap_fdatawrite_range+0x13/0x20
[ 2286.548093]  [<ffffffff81230175>] SyS_sync_file_range+0x145/0x160
[ 2286.548102]  [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 2406.545831] INFO: task dpkg:8812 blocked for more than 120 seconds.
[ 2406.545841]       Tainted: P           OE   4.2.0-16-generic #19-Ubuntu
[ 2406.545844] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2406.545848] dpkg            D ffff88007e716640     0  8812   8790 0x00000000
[ 2406.545858]  ffff880022acb248 0000000000000086 ffff88007b4d2940 ffff88000060d280
[ 2406.545864]  ffff880022acb278 ffff880022acc000 ffff88003014a064 ffff88000060d280
[ 2406.545869]  00000000ffffffff ffff88003014a068 ffff880022acb268 ffffffff817eb9a7
[ 2406.545874] Call Trace:
[ 2406.545889]  [<ffffffff817eb9a7>] schedule+0x37/0x80
[ 2406.545896]  [<ffffffff817ebc5e>] schedule_preempt_disabled+0xe/0x10
[ 2406.545903]  [<ffffffff817ed835>] __mutex_lock_slowpath+0xb5/0x120
[ 2406.545909]  [<ffffffff817ed8c3>] mutex_lock+0x23/0x40
[ 2406.546019]  [<ffffffffc051ca76>] zfs_zinactive+0x56/0x1a0 [zfs]
[ 2406.546106]  [<ffffffffc05162f1>] zfs_inactive+0x61/0x270 [zfs]
[ 2406.546116]  [<ffffffff8119406e>] ? truncate_pagecache+0x5e/0x70
[ 2406.546201]  [<ffffffffc052d4e7>] zpl_evict_inode+0x47/0x60 [zfs]
[ 2406.546208]  [<ffffffff8121860a>] evict+0xba/0x180
[ 2406.546213]  [<ffffffff8121870a>] dispose_list+0x3a/0x50
[ 2406.546218]  [<ffffffff812197fa>] prune_icache_sb+0x5a/0x80
[ 2406.546224]  [<ffffffff8120087f>] super_cache_scan+0x14f/0x1a0
[ 2406.546231]  [<ffffffff81194e2e>] shrink_slab+0x20e/0x3b0
[ 2406.546238]  [<ffffffff81199649>] shrink_zone+0x2b9/0x2d0
[ 2406.546245]  [<ffffffff811997cd>] do_try_to_free_pages+0x16d/0x400
[ 2406.546251]  [<ffffffff81199b6a>] try_to_free_pages+0x10a/0x150
[ 2406.546257]  [<ffffffff8118b96b>] __alloc_pages_nodemask+0x5eb/0xa10
[ 2406.546264]  [<ffffffff811d2ff1>] alloc_pages_current+0x91/0x100
[ 2406.546268]  [<ffffffff811dc4e8>] new_slab+0x368/0x450
[ 2406.546272]  [<ffffffff811dd54f>] __slab_alloc+0x27f/0x4b0
[ 2406.546284]  [<ffffffffc03a3af3>] ? spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2406.546290]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2406.546321]  [<ffffffffc048064d>] ? dbuf_read+0x66d/0x860 [zfs]
[ 2406.546327]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2406.546332]  [<ffffffff811df715>] __kmalloc_node+0xb5/0x2e0
[ 2406.546340]  [<ffffffffc03a3af3>] spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2406.546371]  [<ffffffffc0480dd1>] dbuf_hold_impl+0x41/0xa0 [zfs]
[ 2406.546399]  [<ffffffffc048112f>] dbuf_hold+0x2f/0x60 [zfs]
[ 2406.546441]  [<ffffffffc049a4e5>] dnode_hold_impl+0x85/0x4e0 [zfs]
[ 2406.546450]  [<ffffffffc03a4c52>] ? spl_kmem_cache_alloc+0x72/0x7e0 [spl]
[ 2406.546489]  [<ffffffffc049a959>] dnode_hold+0x19/0x20 [zfs]
[ 2406.546523]  [<ffffffffc04894d6>] dmu_bonus_hold+0x36/0x280 [zfs]
[ 2406.546579]  [<ffffffffc04c1bde>] sa_buf_hold+0xe/0x10 [zfs]
[ 2406.546648]  [<ffffffffc051c184>] zfs_zget+0x1b4/0x330 [zfs]
[ 2406.546719]  [<ffffffffc05258a4>] ? zio_rewrite+0x64/0x70 [zfs]
[ 2406.546789]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2406.546857]  [<ffffffffc0517b23>] zfs_get_data+0x63/0x2f0 [zfs]
[ 2406.546922]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2406.546990]  [<ffffffffc052b6c0>] ? zpl_write_common_iovec+0xe0/0xe0 [zfs]
[ 2406.547056]  [<ffffffffc051fdf0>] zil_commit.part.11+0x630/0x7e0 [zfs]
[ 2406.547122]  [<ffffffffc051ffb7>] zil_commit+0x17/0x20 [zfs]
[ 2406.547190]  [<ffffffffc052b9c9>] zpl_writepages+0xd9/0x170 [zfs]
[ 2406.547195]  [<ffffffff811903be>] do_writepages+0x1e/0x30
[ 2406.547202]  [<ffffffff8118335c>] __filemap_fdatawrite_range+0xcc/0x100
[ 2406.547208]  [<ffffffff81183463>] filemap_fdatawrite_range+0x13/0x20
[ 2406.547213]  [<ffffffff81230175>] SyS_sync_file_range+0x145/0x160
[ 2406.547221]  [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 2526.545562] INFO: task dpkg:8812 blocked for more than 120 seconds.
[ 2526.545573]       Tainted: P           OE   4.2.0-16-generic #19-Ubuntu
[ 2526.545577] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2526.545581] dpkg            D ffff88007e716640     0  8812   8790 0x00000000
[ 2526.545591]  ffff880022acb248 0000000000000086 ffff88007b4d2940 ffff88000060d280
[ 2526.545598]  ffff880022acb278 ffff880022acc000 ffff88003014a064 ffff88000060d280
[ 2526.545604]  00000000ffffffff ffff88003014a068 ffff880022acb268 ffffffff817eb9a7
[ 2526.545609] Call Trace:
[ 2526.545626]  [<ffffffff817eb9a7>] schedule+0x37/0x80
[ 2526.545633]  [<ffffffff817ebc5e>] schedule_preempt_disabled+0xe/0x10
[ 2526.545641]  [<ffffffff817ed835>] __mutex_lock_slowpath+0xb5/0x120
[ 2526.545648]  [<ffffffff817ed8c3>] mutex_lock+0x23/0x40
[ 2526.545768]  [<ffffffffc051ca76>] zfs_zinactive+0x56/0x1a0 [zfs]
[ 2526.545870]  [<ffffffffc05162f1>] zfs_inactive+0x61/0x270 [zfs]
[ 2526.545881]  [<ffffffff8119406e>] ? truncate_pagecache+0x5e/0x70
[ 2526.545974]  [<ffffffffc052d4e7>] zpl_evict_inode+0x47/0x60 [zfs]
[ 2526.545984]  [<ffffffff8121860a>] evict+0xba/0x180
[ 2526.545989]  [<ffffffff8121870a>] dispose_list+0x3a/0x50
[ 2526.545995]  [<ffffffff812197fa>] prune_icache_sb+0x5a/0x80
[ 2526.546004]  [<ffffffff8120087f>] super_cache_scan+0x14f/0x1a0
[ 2526.546012]  [<ffffffff81194e2e>] shrink_slab+0x20e/0x3b0
[ 2526.546020]  [<ffffffff81199649>] shrink_zone+0x2b9/0x2d0
[ 2526.546028]  [<ffffffff811997cd>] do_try_to_free_pages+0x16d/0x400
[ 2526.546035]  [<ffffffff81199b6a>] try_to_free_pages+0x10a/0x150
[ 2526.546042]  [<ffffffff8118b96b>] __alloc_pages_nodemask+0x5eb/0xa10
[ 2526.546051]  [<ffffffff811d2ff1>] alloc_pages_current+0x91/0x100
[ 2526.546056]  [<ffffffff811dc4e8>] new_slab+0x368/0x450
[ 2526.546061]  [<ffffffff811dd54f>] __slab_alloc+0x27f/0x4b0
[ 2526.546074]  [<ffffffffc03a3af3>] ? spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2526.546081]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2526.546117]  [<ffffffffc048064d>] ? dbuf_read+0x66d/0x860 [zfs]
[ 2526.546123]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2526.546129]  [<ffffffff811df715>] __kmalloc_node+0xb5/0x2e0
[ 2526.546138]  [<ffffffffc03a3af3>] spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2526.546172]  [<ffffffffc0480dd1>] dbuf_hold_impl+0x41/0xa0 [zfs]
[ 2526.546205]  [<ffffffffc048112f>] dbuf_hold+0x2f/0x60 [zfs]
[ 2526.546251]  [<ffffffffc049a4e5>] dnode_hold_impl+0x85/0x4e0 [zfs]
[ 2526.546261]  [<ffffffffc03a4c52>] ? spl_kmem_cache_alloc+0x72/0x7e0 [spl]
[ 2526.546305]  [<ffffffffc049a959>] dnode_hold+0x19/0x20 [zfs]
[ 2526.546342]  [<ffffffffc04894d6>] dmu_bonus_hold+0x36/0x280 [zfs]
[ 2526.546405]  [<ffffffffc04c1bde>] sa_buf_hold+0xe/0x10 [zfs]
[ 2526.546486]  [<ffffffffc051c184>] zfs_zget+0x1b4/0x330 [zfs]
[ 2526.546565]  [<ffffffffc05258a4>] ? zio_rewrite+0x64/0x70 [zfs]
[ 2526.546643]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2526.546720]  [<ffffffffc0517b23>] zfs_get_data+0x63/0x2f0 [zfs]
[ 2526.546793]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2526.546870]  [<ffffffffc052b6c0>] ? zpl_write_common_iovec+0xe0/0xe0 [zfs]
[ 2526.546943]  [<ffffffffc051fdf0>] zil_commit.part.11+0x630/0x7e0 [zfs]
[ 2526.547017]  [<ffffffffc051ffb7>] zil_commit+0x17/0x20 [zfs]
[ 2526.547092]  [<ffffffffc052b9c9>] zpl_writepages+0xd9/0x170 [zfs]
[ 2526.547099]  [<ffffffff811903be>] do_writepages+0x1e/0x30
[ 2526.547106]  [<ffffffff8118335c>] __filemap_fdatawrite_range+0xcc/0x100
[ 2526.547113]  [<ffffffff81183463>] filemap_fdatawrite_range+0x13/0x20
[ 2526.547119]  [<ffffffff81230175>] SyS_sync_file_range+0x145/0x160
[ 2526.547127]  [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 2646.545400] INFO: task dpkg:8812 blocked for more than 120 seconds.
[ 2646.545404]       Tainted: P           OE   4.2.0-16-generic #19-Ubuntu
[ 2646.545405] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2646.545407] dpkg            D ffff88007e716640     0  8812   8790 0x00000000
[ 2646.545410]  ffff880022acb248 0000000000000086 ffff88007b4d2940 ffff88000060d280
[ 2646.545412]  ffff880022acb278 ffff880022acc000 ffff88003014a064 ffff88000060d280
[ 2646.545414]  00000000ffffffff ffff88003014a068 ffff880022acb268 ffffffff817eb9a7
[ 2646.545415] Call Trace:
[ 2646.545421]  [<ffffffff817eb9a7>] schedule+0x37/0x80
[ 2646.545423]  [<ffffffff817ebc5e>] schedule_preempt_disabled+0xe/0x10
[ 2646.545426]  [<ffffffff817ed835>] __mutex_lock_slowpath+0xb5/0x120
[ 2646.545428]  [<ffffffff817ed8c3>] mutex_lock+0x23/0x40
[ 2646.545466]  [<ffffffffc051ca76>] zfs_zinactive+0x56/0x1a0 [zfs]
[ 2646.545489]  [<ffffffffc05162f1>] zfs_inactive+0x61/0x270 [zfs]
[ 2646.545492]  [<ffffffff8119406e>] ? truncate_pagecache+0x5e/0x70
[ 2646.545515]  [<ffffffffc052d4e7>] zpl_evict_inode+0x47/0x60 [zfs]
[ 2646.545517]  [<ffffffff8121860a>] evict+0xba/0x180
[ 2646.545519]  [<ffffffff8121870a>] dispose_list+0x3a/0x50
[ 2646.545520]  [<ffffffff812197fa>] prune_icache_sb+0x5a/0x80
[ 2646.545524]  [<ffffffff8120087f>] super_cache_scan+0x14f/0x1a0
[ 2646.545526]  [<ffffffff81194e2e>] shrink_slab+0x20e/0x3b0
[ 2646.545528]  [<ffffffff81199649>] shrink_zone+0x2b9/0x2d0
[ 2646.545530]  [<ffffffff811997cd>] do_try_to_free_pages+0x16d/0x400
[ 2646.545532]  [<ffffffff81199b6a>] try_to_free_pages+0x10a/0x150
[ 2646.545534]  [<ffffffff8118b96b>] __alloc_pages_nodemask+0x5eb/0xa10
[ 2646.545537]  [<ffffffff811d2ff1>] alloc_pages_current+0x91/0x100
[ 2646.545538]  [<ffffffff811dc4e8>] new_slab+0x368/0x450
[ 2646.545540]  [<ffffffff811dd54f>] __slab_alloc+0x27f/0x4b0
[ 2646.545544]  [<ffffffffc03a3af3>] ? spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2646.545545]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2646.545555]  [<ffffffffc048064d>] ? dbuf_read+0x66d/0x860 [zfs]
[ 2646.545557]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2646.545559]  [<ffffffff811df715>] __kmalloc_node+0xb5/0x2e0
[ 2646.545561]  [<ffffffffc03a3af3>] spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2646.545571]  [<ffffffffc0480dd1>] dbuf_hold_impl+0x41/0xa0 [zfs]
[ 2646.545580]  [<ffffffffc048112f>] dbuf_hold+0x2f/0x60 [zfs]
[ 2646.545592]  [<ffffffffc049a4e5>] dnode_hold_impl+0x85/0x4e0 [zfs]
[ 2646.545595]  [<ffffffffc03a4c52>] ? spl_kmem_cache_alloc+0x72/0x7e0 [spl]
[ 2646.545608]  [<ffffffffc049a959>] dnode_hold+0x19/0x20 [zfs]
[ 2646.545618]  [<ffffffffc04894d6>] dmu_bonus_hold+0x36/0x280 [zfs]
[ 2646.545635]  [<ffffffffc04c1bde>] sa_buf_hold+0xe/0x10 [zfs]
[ 2646.545657]  [<ffffffffc051c184>] zfs_zget+0x1b4/0x330 [zfs]
[ 2646.545679]  [<ffffffffc05258a4>] ? zio_rewrite+0x64/0x70 [zfs]
[ 2646.545701]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2646.545722]  [<ffffffffc0517b23>] zfs_get_data+0x63/0x2f0 [zfs]
[ 2646.545743]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2646.545764]  [<ffffffffc052b6c0>] ? zpl_write_common_iovec+0xe0/0xe0 [zfs]
[ 2646.545785]  [<ffffffffc051fdf0>] zil_commit.part.11+0x630/0x7e0 [zfs]
[ 2646.545805]  [<ffffffffc051ffb7>] zil_commit+0x17/0x20 [zfs]
[ 2646.545826]  [<ffffffffc052b9c9>] zpl_writepages+0xd9/0x170 [zfs]
[ 2646.545828]  [<ffffffff811903be>] do_writepages+0x1e/0x30
[ 2646.545831]  [<ffffffff8118335c>] __filemap_fdatawrite_range+0xcc/0x100
[ 2646.545833]  [<ffffffff81183463>] filemap_fdatawrite_range+0x13/0x20
[ 2646.545834]  [<ffffffff81230175>] SyS_sync_file_range+0x145/0x160
[ 2646.545837]  [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 2766.545553] INFO: task dpkg:8812 blocked for more than 120 seconds.
[ 2766.545557]       Tainted: P           OE   4.2.0-16-generic #19-Ubuntu
[ 2766.545558] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2766.545559] dpkg            D ffff88007e716640     0  8812   8790 0x00000000
[ 2766.545563]  ffff880022acb248 0000000000000086 ffff88007b4d2940 ffff88000060d280
[ 2766.545565]  ffff880022acb278 ffff880022acc000 ffff88003014a064 ffff88000060d280
[ 2766.545566]  00000000ffffffff ffff88003014a068 ffff880022acb268 ffffffff817eb9a7
[ 2766.545568] Call Trace:
[ 2766.545574]  [<ffffffff817eb9a7>] schedule+0x37/0x80
[ 2766.545577]  [<ffffffff817ebc5e>] schedule_preempt_disabled+0xe/0x10
[ 2766.545579]  [<ffffffff817ed835>] __mutex_lock_slowpath+0xb5/0x120
[ 2766.545581]  [<ffffffff817ed8c3>] mutex_lock+0x23/0x40
[ 2766.545620]  [<ffffffffc051ca76>] zfs_zinactive+0x56/0x1a0 [zfs]
[ 2766.545644]  [<ffffffffc05162f1>] zfs_inactive+0x61/0x270 [zfs]
[ 2766.545648]  [<ffffffff8119406e>] ? truncate_pagecache+0x5e/0x70
[ 2766.545672]  [<ffffffffc052d4e7>] zpl_evict_inode+0x47/0x60 [zfs]
[ 2766.545675]  [<ffffffff8121860a>] evict+0xba/0x180
[ 2766.545677]  [<ffffffff8121870a>] dispose_list+0x3a/0x50
[ 2766.545679]  [<ffffffff812197fa>] prune_icache_sb+0x5a/0x80
[ 2766.545682]  [<ffffffff8120087f>] super_cache_scan+0x14f/0x1a0
[ 2766.545684]  [<ffffffff81194e2e>] shrink_slab+0x20e/0x3b0
[ 2766.545687]  [<ffffffff81199649>] shrink_zone+0x2b9/0x2d0
[ 2766.545689]  [<ffffffff811997cd>] do_try_to_free_pages+0x16d/0x400
[ 2766.545692]  [<ffffffff81199b6a>] try_to_free_pages+0x10a/0x150
[ 2766.545694]  [<ffffffff8118b96b>] __alloc_pages_nodemask+0x5eb/0xa10
[ 2766.545697]  [<ffffffff811d2ff1>] alloc_pages_current+0x91/0x100
[ 2766.545699]  [<ffffffff811dc4e8>] new_slab+0x368/0x450
[ 2766.545700]  [<ffffffff811dd54f>] __slab_alloc+0x27f/0x4b0
[ 2766.545705]  [<ffffffffc03a3af3>] ? spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2766.545707]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2766.545718]  [<ffffffffc048064d>] ? dbuf_read+0x66d/0x860 [zfs]
[ 2766.545720]  [<ffffffff817ed8b6>] ? mutex_lock+0x16/0x40
[ 2766.545722]  [<ffffffff811df715>] __kmalloc_node+0xb5/0x2e0
[ 2766.545725]  [<ffffffffc03a3af3>] spl_kmem_zalloc+0xa3/0x180 [spl]
[ 2766.545737]  [<ffffffffc0480dd1>] dbuf_hold_impl+0x41/0xa0 [zfs]
[ 2766.545748]  [<ffffffffc048112f>] dbuf_hold+0x2f/0x60 [zfs]
[ 2766.545763]  [<ffffffffc049a4e5>] dnode_hold_impl+0x85/0x4e0 [zfs]
[ 2766.545766]  [<ffffffffc03a4c52>] ? spl_kmem_cache_alloc+0x72/0x7e0 [spl]
[ 2766.545781]  [<ffffffffc049a959>] dnode_hold+0x19/0x20 [zfs]
[ 2766.545793]  [<ffffffffc04894d6>] dmu_bonus_hold+0x36/0x280 [zfs]
[ 2766.545812]  [<ffffffffc04c1bde>] sa_buf_hold+0xe/0x10 [zfs]
[ 2766.545836]  [<ffffffffc051c184>] zfs_zget+0x1b4/0x330 [zfs]
[ 2766.545861]  [<ffffffffc05258a4>] ? zio_rewrite+0x64/0x70 [zfs]
[ 2766.545885]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2766.545909]  [<ffffffffc0517b23>] zfs_get_data+0x63/0x2f0 [zfs]
[ 2766.545933]  [<ffffffffc051d930>] ? zil_add_block+0x190/0x190 [zfs]
[ 2766.545957]  [<ffffffffc052b6c0>] ? zpl_write_common_iovec+0xe0/0xe0 [zfs]
[ 2766.545981]  [<ffffffffc051fdf0>] zil_commit.part.11+0x630/0x7e0 [zfs]
[ 2766.546005]  [<ffffffffc051ffb7>] zil_commit+0x17/0x20 [zfs]
[ 2766.546029]  [<ffffffffc052b9c9>] zpl_writepages+0xd9/0x170 [zfs]
[ 2766.546031]  [<ffffffff811903be>] do_writepages+0x1e/0x30
[ 2766.546033]  [<ffffffff8118335c>] __filemap_fdatawrite_range+0xcc/0x100
[ 2766.546035]  [<ffffffff81183463>] filemap_fdatawrite_range+0x13/0x20
[ 2766.546037]  [<ffffffff81230175>] SyS_sync_file_range+0x145/0x160
[ 2766.546057]  [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75