[root@X ~]# ps aux|grep 16264
root     16264  0.0  0.0  22648  7748 pts/0    D+   12:43   0:00 /sbin/depmod -a -F /boot/System.map-4.3.0-0.1 4.3.0-0.1
root     17161  0.0  0.0   8960   896 pts/1    S+   13:47   0:00 grep 16264
[root@X ~]# cat /proc/16264/stack
[<ffffffffc016acfb>] xfs_buf_submit_wait+0x7b/0x170 [xfs]
[<ffffffffc016b054>] xfs_bwrite+0x24/0x60 [xfs]
[<ffffffffc0172abd>] xfs_reclaim_inode+0x31d/0x340 [xfs]
[<ffffffffc0172d09>] xfs_reclaim_inodes_ag+0x229/0x350 [xfs]
[<ffffffffc0173863>] xfs_reclaim_inodes_nr+0x33/0x40 [xfs]
[<ffffffffc01820a9>] xfs_fs_free_cached_objects+0x19/0x20 [xfs]
[<ffffffff811ed761>] super_cache_scan+0x191/0x1a0
[<ffffffff8118365b>] shrink_slab.part.15+0x1eb/0x390
[<ffffffff81186631>] shrink_zone+0x2b1/0x2c0
[<ffffffff811867a5>] do_try_to_free_pages+0x165/0x3f0
[<ffffffff81186ad7>] try_to_free_pages+0xa7/0x140
[<ffffffff81178c91>] __alloc_pages_nodemask+0x5d1/0x990
[<ffffffff811c1321>] alloc_pages_vma+0x1d1/0x230
[<ffffffff811d6447>] do_huge_pmd_anonymous_page+0x137/0x590
[<ffffffff811a1fac>] handle_mm_fault+0x15dc/0x1860
[<ffffffff81062b75>] __do_page_fault+0x185/0x3d0
[<ffffffff81062de2>] do_page_fault+0x22/0x30
[<ffffffff816219f8>] page_fault+0x28/0x30
[<ffffffffffffffff>] 0xffffffffffffffff
[root@X ~]# date
Wed Nov 18 13:47:35 CET 2015
~