BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:47 in_atomic(): 0, irqs_disabled(): 0, pid: 5787, name: trinity-c27 Preemption disabled at:[<ffffffff990acc7e>] vtime_account_system+0x1e/0x50 CPU: 0 PID: 5787 Comm: trinity-c27 Not tainted 3.15.0-rc7+ #219 ffffffff99a47203 0000000099b50bef ffff880239f138c8 ffffffff99739dfb 0000000000000000 ffff880239f138f0 ffffffff990a026c ffff8801078b5458 ffff8801078b5450 ffffea00044be980 ffff880239f13908 ffffffff99741c30 Call Trace: [<ffffffff99739dfb>] dump_stack+0x4e/0x7a [<ffffffff990a026c>] __might_sleep+0x11c/0x1b0 [<ffffffff99741c30>] down_write+0x20/0x40 [<ffffffff9919337d>] __put_anon_vma+0x3d/0xc0 [<ffffffff99193998>] page_get_anon_vma+0x68/0xb0 [<ffffffff991b97e9>] migrate_pages+0x449/0x880 [<ffffffff9917dc00>] ? isolate_freepages_block+0x360/0x360 [<ffffffff9917ec8a>] compact_zone+0x38a/0x580 [<ffffffff9917ef29>] compact_zone_order+0xa9/0x130 [<ffffffff9917f329>] try_to_compact_pages+0xe9/0x140 [<ffffffff991616da>] __alloc_pages_direct_compact+0x7a/0x250 [<ffffffff99161fbb>] __alloc_pages_nodemask+0x70b/0xbb0 [<ffffffff991a9c3f>] alloc_pages_vma+0xaf/0x1c0 [<ffffffff991bdc8d>] do_huge_pmd_anonymous_page+0xed/0x3d0 [<ffffffff991871b4>] handle_mm_fault+0x1b4/0xc50 [<ffffffff9974358d>] ? retint_restore_args+0xe/0xe [<ffffffff99746939>] __do_page_fault+0x1c9/0x630 [<ffffffff99118acb>] ? __acct_update_integrals+0x8b/0x120 [<ffffffff9974725b>] ? preempt_count_sub+0xab/0x100 [<ffffffff99746dbe>] do_page_fault+0x1e/0x70 [<ffffffff997437f2>] page_fault+0x22/0x30 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>