device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 INFO: task syz-executor0:22067 blocked for more than 140 seconds. b_state=0x00000029, b_size=4096 Not tainted 4.20.0-rc1+ #332 device loop0 blocksize: 2048 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. __find_get_block_slow() failed. block=1, b_blocknr=0 syz-executor0 D23400 22067 6073 0x00000004 b_state=0x00000029, b_size=4096 Call Trace: device loop0 blocksize: 2048 context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 schedule+0xfe/0x460 kernel/sched/core.c:3516 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3574 device loop0 blocksize: 2048 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xaff/0x16f0 kernel/locking/mutex.c:1072 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 blkdev_put+0x34/0x540 fs/block_dev.c:1816 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 blkdev_close+0x8b/0xb0 fs/block_dev.c:1865 device loop0 blocksize: 2048 __fput+0x385/0xa30 fs/file_table.c:278 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 ____fput+0x15/0x20 fs/file_table.c:309 __find_get_block_slow() failed. block=1, b_blocknr=0 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 entry_SYSCALL_64_after_hwframe+0x49/0xbe b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 RIP: 0033:0x411021 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 Code: 4c 89 f6 48 89 c7 48 89 ca 48 89 4c 24 10 4c 89 54 24 08 e8 b1 a3 ff ff 48 8b 4c 24 10 41 c6 04 0f 00 4c 8b 7c 24 28 4c 8b 54 <24> 08 45 0f b6 37 e9 db fc ff ff 0f 1f 40 00 41 80 f8 29 74 7f ba __find_get_block_slow() failed. block=1, b_blocknr=0 RSP: 002b:00007ffdf3da6e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 b_state=0x00000029, b_size=4096 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411021 device loop0 blocksize: 2048 RDX: 0000000000000000 RSI: 00000000007302a8 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 __find_get_block_slow() failed. block=1, b_blocknr=0 R10: 00007ffdf3da6d60 R11: 0000000000000293 R12: 0000000000000000 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 R13: 0000000000000001 R14: 0000000000000c3e R15: 0000000000000000 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 INFO: task syz-executor0:22130 blocked for more than 140 seconds. b_state=0x00000029, b_size=4096 Not tainted 4.20.0-rc1+ #332 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. b_state=0x00000029, b_size=4096 syz-executor0 D22400 22130 6073 0x00000004 device loop0 blocksize: 2048 Call Trace: __find_get_block_slow() failed. block=1, b_blocknr=0 context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 schedule+0xfe/0x460 kernel/sched/core.c:3516 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3574 __find_get_block_slow() failed. block=1, b_blocknr=0 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xaff/0x16f0 kernel/locking/mutex.c:1072 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 blkdev_get+0xc1/0xb50 fs/block_dev.c:1617 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 blkdev_open+0x1fb/0x280 fs/block_dev.c:1775 device loop0 blocksize: 2048 do_dentry_open+0x499/0x1250 fs/open.c:771 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 vfs_open+0xa0/0xd0 fs/open.c:880 device loop0 blocksize: 2048 do_last fs/namei.c:3418 [inline] path_openat+0x12bc/0x5150 fs/namei.c:3534 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 do_filp_open+0x255/0x380 fs/namei.c:3564 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 do_sys_open+0x568/0x700 fs/open.c:1063 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __do_sys_open fs/open.c:1081 [inline] __se_sys_open fs/open.c:1076 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1076 __find_get_block_slow() failed. block=1, b_blocknr=0 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 entry_SYSCALL_64_after_hwframe+0x49/0xbe b_state=0x00000029, b_size=4096 RIP: 0033:0x4111a1 device loop0 blocksize: 2048 Code: 89 f2 eb b9 48 8d 05 9e bb 3f 00 48 89 04 24 48 8d 05 93 7a 56 00 48 89 44 24 08 e8 09 9e 01 00 0f 0b e8 b2 8d 04 00 e9 4d ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff __find_get_block_slow() failed. block=1, b_blocknr=0 RSP: 002b:00007f43afd90a80 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 RAX: ffffffffffffffda RBX: 0000000020000228 RCX: 00000000004111a1 b_state=0x00000029, b_size=4096 RDX: 00007f43afd90afa RSI: 0000000000000002 RDI: 00007f43afd90af0 device loop0 blocksize: 2048 RBP: 0000000000000001 R08: 0000000000000000 R09: 000000000000000a __find_get_block_slow() failed. block=1, b_blocknr=0 R10: 0000000000000075 R11: 0000000000000293 R12: 0000000000000005 b_state=0x00000029, b_size=4096 R13: 0000000000000001 R14: 00000000004d8460 R15: 00000000ffffffff device loop0 blocksize: 2048 INFO: task syz-executor2:22093 blocked for more than 140 seconds. __find_get_block_slow() failed. block=1, b_blocknr=0 Not tainted 4.20.0-rc1+ #332 b_state=0x00000029, b_size=4096 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D23400 22093 13310 0x00000004 device loop0 blocksize: 2048 Call Trace: __find_get_block_slow() failed. block=1, b_blocknr=0 context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 schedule+0xfe/0x460 kernel/sched/core.c:3516 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x371/0x710 kernel/locking/rwsem-xadd.c:297 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __find_get_block_slow() failed. block=1, b_blocknr=0 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x9b/0x120 kernel/locking/rwsem.c:26 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 __get_super.part.11+0x207/0x2e0 fs/super.c:698 device loop0 blocksize: 2048 __get_super include/linux/spinlock.h:329 [inline] get_super+0x2d/0x50 fs/super.c:727 __find_get_block_slow() failed. block=1, b_blocknr=0 fsync_bdev+0x17/0xc0 fs/block_dev.c:469 b_state=0x00000029, b_size=4096 invalidate_partition+0x35/0x60 block/genhd.c:1570 device loop0 blocksize: 2048 drop_partitions.isra.14+0xe1/0x200 block/partition-generic.c:445 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 rescan_partitions+0x72/0x8e0 block/partition-generic.c:518 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 __blkdev_reread_part+0x1ad/0x230 block/ioctl.c:173 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 blkdev_reread_part+0x26/0x40 block/ioctl.c:193 __find_get_block_slow() failed. block=1, b_blocknr=0 loop_reread_partitions+0x163/0x190 drivers/block/loop.c:644 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 loop_set_status+0xb95/0x1010 drivers/block/loop.c:1198 device loop0 blocksize: 2048 loop_set_status64+0xaa/0x100 drivers/block/loop.c:1316 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 lo_ioctl+0x90e/0x1d60 drivers/block/loop.c:1432 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0x98e/0x21b0 block/ioctl.c:605 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 block_ioctl+0xee/0x130 fs/block_dev.c:1883 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 __find_get_block_slow() failed. block=1, b_blocknr=0 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 entry_SYSCALL_64_after_hwframe+0x49/0xbe device loop0 blocksize: 2048 RIP: 0033:0x457569 __find_get_block_slow() failed. block=1, b_blocknr=0 Code: 83 c4 18 c3 e8 d8 64 00 00 48 8b 04 24 48 8b 4c 24 08 48 89 01 e8 d7 2d fc ff e8 22 7a fc ff b8 02 00 00 00 48 8d 0d aa 54 0b <01> 87 01 8b 05 a2 54 0b 01 83 f8 01 0f 85 8a 00 00 00 b8 01 00 00 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 RSP: 002b:00007f3329c80c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 b_state=0x00000029, b_size=4096 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 device loop0 blocksize: 2048 RDX: 0000000020000380 RSI: 0000000000004c04 RDI: 0000000000000004 __find_get_block_slow() failed. block=1, b_blocknr=0 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 b_state=0x00000029, b_size=4096 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3329c816d4 device loop0 blocksize: 2048 R13: 00000000004c06e8 R14: 00000000004d0c00 R15: 00000000ffffffff INFO: task blkid:22100 blocked for more than 140 seconds. __find_get_block_slow() failed. block=1, b_blocknr=0 Not tainted 4.20.0-rc1+ #332 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 blkid D23784 22100 13661 0x00000004 b_state=0x00000029, b_size=4096 Call Trace: device loop0 blocksize: 2048 context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 schedule+0xfe/0x460 kernel/sched/core.c:3516 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3574 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xaff/0x16f0 kernel/locking/mutex.c:1072 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 blkdev_get+0xc1/0xb50 fs/block_dev.c:1617 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 blkdev_open+0x1fb/0x280 fs/block_dev.c:1775 __find_get_block_slow() failed. block=1, b_blocknr=0 do_dentry_open+0x499/0x1250 fs/open.c:771 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 vfs_open+0xa0/0xd0 fs/open.c:880 b_state=0x00000029, b_size=4096 do_last fs/namei.c:3418 [inline] path_openat+0x12bc/0x5150 fs/namei.c:3534 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 do_filp_open+0x255/0x380 fs/namei.c:3564 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 do_sys_open+0x568/0x700 fs/open.c:1063 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __do_sys_open fs/open.c:1081 [inline] __se_sys_open fs/open.c:1076 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1076 __find_get_block_slow() failed. block=1, b_blocknr=0 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 entry_SYSCALL_64_after_hwframe+0x49/0xbe __find_get_block_slow() failed. block=1, b_blocknr=0 RIP: 0033:0x7f790d2f9120 b_state=0x00000029, b_size=4096 Code: Bad RIP value. device loop0 blocksize: 2048 RSP: 002b:00007ffebe050ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 __find_get_block_slow() failed. block=1, b_blocknr=0 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f790d2f9120 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 RDX: 00007ffebe052f3f RSI: 0000000000000000 RDI: 00007ffebe052f3f b_state=0x00000029, b_size=4096 RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 device loop0 blocksize: 2048 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000e71030 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 __find_get_block_slow() failed. block=1, b_blocknr=0 Showing all locks held in the system: b_state=0x00000029, b_size=4096 1 lock held by khungtaskd/1007: device loop0 blocksize: 2048 #0: 000000002dc2fce1 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 kernel/locking/lockdep.c:4379 __find_get_block_slow() failed. block=1, b_blocknr=0 1 lock held by rsyslogd/5945: b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 #0: 0000000063e07394 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 b_state=0x00000029, b_size=4096 2 locks held by getty/6035: device loop0 blocksize: 2048 #0: 00000000859c0aff (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 __find_get_block_slow() failed. block=1, b_blocknr=0 #1: 0000000054ed6082 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 b_state=0x00000029, b_size=4096 2 locks held by getty/6036: #0: 00000000779e3acf (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 device loop0 blocksize: 2048 #1: 0000000074f8a0e6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 __find_get_block_slow() failed. block=1, b_blocknr=0 2 locks held by getty/6037: b_state=0x00000029, b_size=4096 #0: 000000007436e278 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 device loop0 blocksize: 2048 #1: 0000000037c6c393 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 __find_get_block_slow() failed. block=1, b_blocknr=0 2 locks held by getty/6038: b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 #0: 00000000816cef44 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 __find_get_block_slow() failed. block=1, b_blocknr=0 #1: 00000000888abb3d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 b_state=0x00000029, b_size=4096 2 locks held by getty/6039: device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 #0: 00000000a265b15a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 #1: 000000003bb258e9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 2 locks held by getty/6040: __find_get_block_slow() failed. block=1, b_blocknr=0 #0: 00000000500f6ed2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 b_state=0x00000029, b_size=4096 #1: 00000000266100f6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 device loop0 blocksize: 2048 2 locks held by getty/6041: __find_get_block_slow() failed. block=1, b_blocknr=0 #0: 00000000e79f4562 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 b_state=0x00000029, b_size=4096 #1: 000000007cf0163e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 device loop0 blocksize: 2048 1 lock held by syz-executor0/22067: __find_get_block_slow() failed. block=1, b_blocknr=0 #0: 00000000936de4f0 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x34/0x540 fs/block_dev.c:1816 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 5 locks held by syz-executor0/22068: b_state=0x00000029, b_size=4096 1 lock held by syz-executor0/22130: device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 #0: 00000000936de4f0 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466 b_state=0x00000029, b_size=4096 3 locks held by syz-executor2/22093: device loop0 blocksize: 2048 #0: 00000000df7568d1 (&lo->lo_ctl_mutex/1){+.+.}, at: lo_ioctl+0x8e/0x1d60 drivers/block/loop.c:1402 __find_get_block_slow() failed. block=1, b_blocknr=0 #1: 00000000936de4f0 (&bdev->bd_mutex){+.+.}, at: blkdev_reread_part+0x1e/0x40 block/ioctl.c:192 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 #2: 000000009c592574 (&type->s_umount_key#72){.+.+}, at: __get_super.part.11+0x207/0x2e0 fs/super.c:698 b_state=0x00000029, b_size=4096 1 lock held by blkid/22100: device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 #0: 00000000936de4f0 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x13c0 fs/block_dev.c:1466 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 ============================================= __find_get_block_slow() failed. block=1, b_blocknr=0 NMI backtrace for cpu 0 b_state=0x00000029, b_size=4096 CPU: 0 PID: 1007 Comm: khungtaskd Not tainted 4.20.0-rc1+ #332 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 device loop0 blocksize: 2048 Call Trace: __find_get_block_slow() failed. block=1, b_blocknr=0 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 b_state=0x00000029, b_size=4096 nmi_cpu_backtrace.cold.2+0x5c/0xa1 lib/nmi_backtrace.c:101 device loop0 blocksize: 2048 nmi_trigger_cpumask_backtrace+0x1e8/0x22a lib/nmi_backtrace.c:62 __find_get_block_slow() failed. block=1, b_blocknr=0 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline] watchdog+0xb51/0x1060 kernel/hung_task.c:289 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 __find_get_block_slow() failed. block=1, b_blocknr=0 b_state=0x00000029, b_size=4096 device loop0 blocksize: 2048 kthread+0x35a/0x440 kernel/kthread.c:246 __find_get_block_slow() failed. block=1, b_blocknr=0 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 0 to CPUs 1: b_state=0x00000029, b_size=4096 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.373 msecs NMI backtrace for cpu 1 CPU: 1 PID: 22068 Comm: syz-executor0 Not tainted 4.20.0-rc1+ #332 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:preempt_count_add+0xaf/0x1b0 kernel/sched/core.c:3197 Code: 65 8b 05 14 21 ac 7e 0f b6 c0 3d f4 00 00 00 0f 8f 80 00 00 00 65 8b 05 ff 20 ac 7e 25 ff ff ff 7f 41 39 c4 74 05 5b 41 5c 5d 48 8b 5d 08 48 89 df e8 d4 74 0c 00 85 c0 75 39 65 4c 8b 24 25 RSP: 0018:ffff8881daf07dd8 EFLAGS: 00000093 RAX: 0000000000010004 RBX: 1ffff1103b5e0fbd RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff8881daf07e70 R08: ffffed103b5e5b68 R09: ffffed103b5e5b67 R10: ffffed103b5e5b67 R11: ffff8881daf2db3b R12: 0000000000000001 R13: dffffc0000000000 R14: ffff8881daf07e48 R15: 0000000000000000 FS: 00007f43afdb2700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000fd4978 CR3: 0000000182f05000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock_sched_held+0x9e/0x180 kernel/rcu/update.c:114 trace_local_timer_exit arch/x86/include/asm/trace/irq_vectors.h:56 [inline] smp_apic_timer_interrupt+0x5a2/0x760 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1688 [inline] RIP: 0010:vprintk_emit+0x87d/0x990 kernel/printk/printk.c:1921 Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 de 00 00 00 48 83 3d 63 3b ec 07 00 74 34 e8 cc c7 19 00 48 8b bd 90 fe ff ff 57 9d <0f> 1f 44 00 00 e9 aa fe ff ff e8 b4 c7 19 00 0f 0b e8 ad c7 19 00 RSP: 0018:ffff888184aeed00 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: 1ffff1103095dda6 RCX: ffffc90005dcd000 RDX: 0000000000040000 RSI: ffffffff8165c014 RDI: 0000000000000246 RBP: ffff888184aeee78 R08: ffff88813109c8c8 R09: 0000000000000006 R10: 0000000000000000 R11: ffff88813109c000 R12: 0000000000000200 R13: 0000000000000000 R14: ffffed103095ddba R15: ffff888184aeee50 vprintk_default+0x28/0x30 kernel/printk/printk.c:1964 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1997 __find_get_block_slow fs/buffer.c:235 [inline] __find_get_block.cold.57+0x85/0xff fs/buffer.c:1294 __getblk_slow fs/buffer.c:1039 [inline] __getblk_gfp+0x2b3/0xd50 fs/buffer.c:1320 __bread_gfp+0x2d/0x310 fs/buffer.c:1354 sb_bread include/linux/buffer_head.h:307 [inline] read_raw_super_block fs/f2fs/super.c:2830 [inline] f2fs_fill_super+0x440/0x8a20 fs/f2fs/super.c:3058 mount_bdev+0x30c/0x3e0 fs/super.c:1158 f2fs_mount+0x34/0x40 fs/f2fs/super.c:3457 mount_fs+0xae/0x31d fs/super.c:1261 vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x581/0x31f0 fs/namespace.c:2801 ksys_mount+0x12d/0x140 fs/namespace.c:3017 __do_sys_mount fs/namespace.c:3031 [inline] __se_sys_mount fs/namespace.c:3028 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3028 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459fda Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007f43afdb1a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f43afdb1b30 RCX: 0000000000459fda RDX: 00007f43afdb1ad0 RSI: 0000000020000340 RDI: 00007f43afdb1af0 RBP: 0000000020000340 R08: 00007f43afdb1b30 R09: 00007f43afdb1ad0 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003 R13: 0000000000000000 R14: 00000000004d8460 R15: 00000000ffffffff