1 FILE: mm/filemap.c 2 3 INFO: task syz-executor6:9207 blocked for more than 120 seconds. 4 Not tainted 4.15.0-rc2-next-20171208+ #63 5 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 6 syz-executor6 D21264 9207 3394 0x80000002 7 Call Trace: 8 context_switch kernel/sched/core.c:2800 [inline] 9 __schedule+0x8eb/0x2060 kernel/sched/core.c:3376 10 schedule+0xf5/0x430 kernel/sched/core.c:3435 11 io_schedule+0x1c/0x70 kernel/sched/core.c:5043 12 wait_on_page_bit_common mm/filemap.c:1099 [inline] 13 __lock_page+0x585/0x740 mm/filemap.c:1272 14 lock_page include/linux/pagemap.h:483 [inline] 15 truncate_inode_pages_range+0x1945/0x1f90 mm/truncate.c:452 16 truncate_inode_pages+0x24/0x30 mm/truncate.c:482 17 kill_bdev+0xbc/0xf0 fs/block_dev.c:86 18 __blkdev_put+0x183/0x7c0 fs/block_dev.c:1764 19 blkdev_put+0x85/0x4f0 fs/block_dev.c:1835 20 blkdev_close+0x91/0xc0 fs/block_dev.c:1842 21 __fput+0x333/0x7f0 fs/file_table.c:210 22 ____fput+0x15/0x20 fs/file_table.c:244 23 task_work_run+0x199/0x270 kernel/task_work.c:113 24 exit_task_work include/linux/task_work.h:22 [inline] 25 do_exit+0x9bb/0x1ae0 kernel/exit.c:869 26 do_group_exit+0x149/0x400 kernel/exit.c:972 27 get_signal+0x73f/0x16c0 kernel/signal.c:2337 28 do_signal+0x94/0x1ee0 arch/x86/kernel/signal.c:809 29 exit_to_usermode_loop+0x258/0x2f0 arch/x86/entry/common.c:161 30 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] 31 syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264 32 entry_SYSCALL_64_fastpath+0x94/0x96 33
