BUG: sleeping function called from invalid context at mm/page-writeback.c:2120 in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/1 no locks held by swapper/1/0. Preemption disabled at:[] cpu_idle_loop kernel/sched/idle.c:279 [inline] Preemption disabled at:[] cpu_startup_entry+0x755/0x810 kernel/sched/idle.c:301 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.174+ #4 0000000000000000 d7ee000cd50c6b37 ffff8801db707520 ffffffff81aad1a1 ffff8801da6897c0 0000000000000101 ffff8801da6897c0 0000000000000101 ffff8801da6897c0 ffff8801db707558 ffffffff813a6f33 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [] ___might_sleep.cold+0x1c6/0x1dc kernel/sched/core.c:7988 [] tag_pages_for_writeback+0xa0/0x1a0 mm/page-writeback.c:2120 [] ext4_writepages+0xaf9/0x2c40 fs/ext4/inode.c:2582 [] do_writepages+0xfc/0x1e0 mm/page-writeback.c:2341 [] __filemap_fdatawrite_range+0x1ad/0x260 mm/filemap.c:347 [] filemap_write_and_wait_range mm/filemap.c:533 [inline] [] filemap_write_and_wait_range+0x5c/0xb0 mm/filemap.c:527 [] __generic_file_fsync+0x9b/0x1c0 fs/libfs.c:940 [] generic_file_fsync+0x78/0x120 fs/libfs.c:977 [] ext4_sync_file+0x772/0xf10 fs/ext4/fsync.c:109 [] vfs_fsync_range+0x111/0x260 fs/sync.c:195 [] generic_write_sync include/linux/fs.h:2517 [inline] [] dio_complete+0x3e6/0x720 fs/direct-io.c:266 [] dio_bio_end_aio+0x176/0x3f0 fs/direct-io.c:312 [] bio_endio+0x187/0x1e0 block/bio.c:1786 [] req_bio_endio block/blk-core.c:157 [inline] [] blk_update_request+0x267/0xa50 block/blk-core.c:2653 [] scsi_end_request+0x9c/0x5d0 drivers/scsi/scsi_lib.c:695 [] scsi_io_completion+0x275/0x1810 drivers/scsi/scsi_lib.c:918 [] scsi_finish_command+0x3a4/0x520 drivers/scsi/scsi.c:607 [] scsi_softirq_done+0x259/0x370 drivers/scsi/scsi_lib.c:1654 [] blk_done_softirq+0x258/0x3a0 block/blk-softirq.c:35 [] __do_softirq+0x226/0xa3f kernel/softirq.c:273 [] invoke_softirq kernel/softirq.c:350 [inline] [] irq_exit+0x10a/0x150 kernel/softirq.c:391 [] exiting_irq arch/x86/include/asm/apic.h:652 [inline] [] do_IRQ+0x111/0x1d0 arch/x86/kernel/irq.c:251 [] common_interrupt+0x9d/0x9d arch/x86/entry/entry_64.S:623 [] ? native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:52 [] arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:423 [] default_idle_call+0x48/0x70 kernel/sched/idle.c:93 [] cpuidle_idle_call kernel/sched/idle.c:157 [inline] [] cpu_idle_loop kernel/sched/idle.c:253 [inline] [] cpu_startup_entry+0x6d1/0x810 kernel/sched/idle.c:301 [] start_secondary+0x31d/0x410 arch/x86/kernel/smpboot.c:245 ================================= [ INFO: inconsistent lock state ] 4.4.174+ #4 Not tainted --------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. swapper/1/0 [HC0[0]:SC1[1]:HE1:SE0] takes: (&sb->s_type->i_mutex_key#9){+.?.+.}, at: [] __generic_file_fsync+0xcf/0x1c0 fs/libfs.c:944 {SOFTIRQ-ON-W} state was registered at: [] mark_irqflags kernel/locking/lockdep.c:2817 [inline] [] __lock_acquire+0xe73/0x4f50 kernel/locking/lockdep.c:3169 [] lock_acquire+0x15e/0x450 kernel/locking/lockdep.c:3592 [] __mutex_lock_common kernel/locking/mutex.c:521 [inline] [] mutex_lock_nested+0xc1/0xb80 kernel/locking/mutex.c:621 [] bprm_fill_uid fs/exec.c:1357 [inline] [] prepare_binprm+0x2bf/0x770 fs/exec.c:1391 [] do_execveat_common.isra.0+0xd86/0x1e90 fs/exec.c:1620 [] do_execve fs/exec.c:1683 [inline] [] SYSC_execve fs/exec.c:1764 [inline] [] SyS_execve+0x42/0x50 fs/exec.c:1759 [] return_from_execve+0x0/0x23 irq event stamp: 145358 hardirqs last enabled at (145358): [] quarantine_put+0xda/0x180 mm/kasan/quarantine.c:209 hardirqs last disabled at (145357): [] quarantine_put+0x52/0x180 mm/kasan/quarantine.c:186 softirqs last enabled at (145298): [] _local_bh_enable+0x1c/0x50 kernel/softirq.c:144 softirqs last disabled at (145299): [] invoke_softirq kernel/softirq.c:350 [inline] softirqs last disabled at (145299): [] irq_exit+0x10a/0x150 kernel/softirq.c:391 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&sb->s_type->i_mutex_key#9); lock(&sb->s_type->i_mutex_key#9); *** DEADLOCK *** no locks held by swapper/1/0. stack backtrace: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.174+ #4 0000000000000000 d7ee000cd50c6b37 ffff8801db707610 ffffffff81aad1a1 0000000000000090 ffff8801da6897c0 ffffffff83abf2c0 ffffffff84057a80 ffff8801da68a0a8 ffff8801db707688 ffffffff813ad456 0000000000000001 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [] print_usage_bug.cold+0x454/0x592 kernel/locking/lockdep.c:2267 [] valid_state kernel/locking/lockdep.c:2280 [inline] [] mark_lock_irq kernel/locking/lockdep.c:2478 [inline] [] mark_lock+0x6fd/0x1440 kernel/locking/lockdep.c:2933 [] mark_irqflags kernel/locking/lockdep.c:2799 [inline] [] __lock_acquire+0x145e/0x4f50 kernel/locking/lockdep.c:3169 [] lock_acquire+0x15e/0x450 kernel/locking/lockdep.c:3592 [] __mutex_lock_common kernel/locking/mutex.c:521 [inline] [] mutex_lock_nested+0xc1/0xb80 kernel/locking/mutex.c:621 [] __generic_file_fsync+0xcf/0x1c0 fs/libfs.c:944 [] generic_file_fsync+0x78/0x120 fs/libfs.c:977 [] ext4_sync_file+0x772/0xf10 fs/ext4/fsync.c:109 [] vfs_fsync_range+0x111/0x260 fs/sync.c:195 [] generic_write_sync include/linux/fs.h:2517 [inline] [] dio_complete+0x3e6/0x720 fs/direct-io.c:266 [] dio_bio_end_aio+0x176/0x3f0 fs/direct-io.c:312 [] bio_endio+0x187/0x1e0 block/bio.c:1786 [] req_bio_endio block/blk-core.c:157 [inline] [] blk_update_request+0x267/0xa50 block/blk-core.c:2653 [] scsi_end_request+0x9c/0x5d0 drivers/scsi/scsi_lib.c:695 [] scsi_io_completion+0x275/0x1810 drivers/scsi/scsi_lib.c:918 [] scsi_finish_command+0x3a4/0x520 drivers/scsi/scsi.c:607 [] scsi_softirq_done+0x259/0x370 drivers/scsi/scsi_lib.c:1654 [] blk_done_softirq+0x258/0x3a0 block/blk-softirq.c:35 [] __do_softirq+0x226/0xa3f kernel/softirq.c:273 [] invoke_softirq kernel/softirq.c:350 [inline] [] irq_exit+0x10a/0x150 kernel/softirq.c:391 [] exiting_irq arch/x86/include/asm/apic.h:652 [inline] [] do_IRQ+0x111/0x1d0 arch/x86/kernel/irq.c:251 [] common_interrupt+0x9d/0x9d arch/x86/entry/entry_64.S:623 [] ? native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:52 [] arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:423 [] default_idle_call+0x48/0x70 kernel/sched/idle.c:93 [] cpuidle_idle_call kernel/sched/idle.c:157 [inline] [] cpu_idle_loop kernel/sched/idle.c:253 [inline] [] cpu_startup_entry+0x6d1/0x810 kernel/sched/idle.c:301 [] start_secondary+0x31d/0x410 arch/x86/kernel/smpboot.c:245 ------------[ cut here ]------------ kernel BUG at include/linux/pagemap.h:152! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.174+ #4 task: ffff8801da6897c0 task.stack: ffff8801da698000 RIP: 0010:[] [] page_cache_get_speculative include/linux/pagemap.h:152 [inline] RIP: 0010:[] [] find_get_pages_range_tag+0x4df/0x6a0 mm/filemap.c:1483 RSP: 0018:ffff8801db7075d8 EFLAGS: 00010206 RAX: ffff8801da6897c0 RBX: 000000000000000e RCX: 1ffffffff05f7178 RDX: 0000000000000100 RSI: ffffffff813b8d6f RDI: ffff8801db707648 RBP: ffff8801db7076d0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff82836880 R11: ffffffff831a5078 R12: ffff8801d63a3ba0 R13: ffff8801d601dee8 R14: ffff8801db7076a8 R15: ffffea00074f2980 FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f68b6b3c000 CR3: 00000001d49ca000 CR4: 00000000001606b0 Stack: ffffffff813b8943 1ffff1003b6e0ec5 ffff8801d63a3ba0 1ffff1003b6e0eeb 0000000100000101 ffff8801db707758 ffff8801db707788 0000000000000fff 000000000000000e ffffed003ac03bdd 0000000041b58ab3 ffffffff82c5ac4d Call Trace: [] pagevec_lookup_range_tag+0x40/0x80 mm/swap.c:1137 [] __filemap_fdatawait_range+0xfe/0x260 mm/filemap.c:400 [] filemap_fdatawait_range+0x26/0x50 mm/filemap.c:438 [] filemap_fdatawait+0x66/0x90 mm/filemap.c:488 [] __writeback_single_inode+0x76e/0x1380 fs/fs-writeback.c:1295 [] writeback_single_inode+0x256/0x450 fs/fs-writeback.c:1397 [] sync_inode fs/fs-writeback.c:2391 [inline] [] sync_inode_metadata+0xc3/0x100 fs/fs-writeback.c:2411 [] __generic_file_fsync+0x14e/0x1c0 fs/libfs.c:951 [] generic_file_fsync+0x78/0x120 fs/libfs.c:977 [] ext4_sync_file+0x772/0xf10 fs/ext4/fsync.c:109 [] vfs_fsync_range+0x111/0x260 fs/sync.c:195 [] generic_write_sync include/linux/fs.h:2517 [inline] [] dio_complete+0x3e6/0x720 fs/direct-io.c:266 [] dio_bio_end_aio+0x176/0x3f0 fs/direct-io.c:312 [] bio_endio+0x187/0x1e0 block/bio.c:1786 [] req_bio_endio block/blk-core.c:157 [inline] [] blk_update_request+0x267/0xa50 block/blk-core.c:2653 [] scsi_end_request+0x9c/0x5d0 drivers/scsi/scsi_lib.c:695 [] scsi_io_completion+0x275/0x1810 drivers/scsi/scsi_lib.c:918 [] scsi_finish_command+0x3a4/0x520 drivers/scsi/scsi.c:607 [] scsi_softirq_done+0x259/0x370 drivers/scsi/scsi_lib.c:1654 [] blk_done_softirq+0x258/0x3a0 block/blk-softirq.c:35 [] __do_softirq+0x226/0xa3f kernel/softirq.c:273 [] invoke_softirq kernel/softirq.c:350 [inline] [] irq_exit+0x10a/0x150 kernel/softirq.c:391 [] exiting_irq arch/x86/include/asm/apic.h:652 [inline] [] do_IRQ+0x111/0x1d0 arch/x86/kernel/irq.c:251 [] common_interrupt+0x9d/0x9d arch/x86/entry/entry_64.S:623 [] arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:423 [] default_idle_call+0x48/0x70 kernel/sched/idle.c:93 [] cpuidle_idle_call kernel/sched/idle.c:157 [inline] [] cpu_idle_loop kernel/sched/idle.c:253 [inline] [] cpu_startup_entry+0x6d1/0x810 kernel/sched/idle.c:301 [] start_secondary+0x31d/0x410 arch/x86/kernel/smpboot.c:245 Code: 82 c6 05 84 08 de 01 01 e8 3f 35 e4 ff e9 30 fc ff ff e8 95 08 f5 ff 41 83 e7 01 0f 84 27 fe ff ff e9 38 fc ff ff e8 81 08 f5 ff <0f> 0b 41 89 c4 e9 4f fd ff ff e8 72 08 f5 ff 48 85 db 0f 84 3a RIP [] page_cache_get_speculative include/linux/pagemap.h:152 [inline] RIP [] find_get_pages_range_tag+0x4df/0x6a0 mm/filemap.c:1483 RSP ---[ end trace 999987b560beb0e7 ]---