EXT4-fs (sda1): resizing filesystem from 524032 to 4 blocks EXT4-fs warning (device sda1): ext4_resize_fs:1930: can't shrink FS - resize aborted INFO: task kworker/u4:0:7 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:0 D14376 7 2 0x80000000 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 start_this_handle+0x83e/0x1250 fs/jbd2/transaction.c:334 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_writepages+0x18ba/0x4110 fs/ext4/inode.c:2836 do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 __writeback_single_inode+0x20a/0x1620 fs/fs-writeback.c:1323 writeback_sb_inodes+0x71f/0x11d0 fs/fs-writeback.c:1587 __writeback_inodes_wb+0x1b9/0x340 fs/fs-writeback.c:1656 wb_writeback+0xa73/0xfc0 fs/fs-writeback.c:1765 wb_check_old_data_flush fs/fs-writeback.c:1867 [inline] wb_do_writeback fs/fs-writeback.c:1920 [inline] wb_workfn+0x1008/0x1790 fs/fs-writeback.c:1949 process_one_work+0xc90/0x1b90 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 INFO: task jbd2/sda1-8:3077 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. jbd2/sda1-8 D18264 3077 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 jbd2_journal_commit_transaction+0xd42/0x89f8 fs/jbd2/commit.c:435 kjournald2+0x26d/0xb30 fs/jbd2/journal.c:229 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 INFO: task rs:main Q:Reg:5209 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. rs:main Q:Reg D22816 5209 1 0x00000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 start_this_handle+0x83e/0x1250 fs/jbd2/transaction.c:334 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] file_update_time+0x390/0x640 fs/inode.c:1877 __generic_file_write_iter+0x1dc/0x630 mm/filemap.c:3214 ext4_file_write_iter+0x390/0x1420 fs/ext4/file.c:266 call_write_iter include/linux/fs.h:1808 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa754e7a19d Code: d1 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be fa ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 07 fb ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fa75341b000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000105 RCX: 00007fa754e7a19d RDX: 0000000000000105 RSI: 000000000196aa90 RDI: 0000000000000001 RBP: 000000000196aa90 R08: 746170203a687461 R09: 65642f27203d2068 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007fa75341b480 R14: 0000000000000002 R15: 000000000196a890 INFO: task syz-executor2:8726 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D23736 8726 5368 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 __rwsem_down_write_failed_common+0xbb9/0x1670 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:738 [inline] process_measurement+0x190f/0x1bf0 security/integrity/ima/ima_main.c:205 ima_file_check+0xe5/0x130 security/integrity/ima/ima_main.c:391 do_last fs/namei.c:3422 [inline] path_openat+0x134d/0x5160 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_sys_open+0x568/0x700 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x9d/0x100 fs/open.c:1084 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007f7587708c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457579 RDX: 000000000000275a RSI: 0000000020000180 RDI: ffffffffffffff9c RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f75877096d4 R13: 00000000004c2b26 R14: 00000000004d4140 R15: 00000000ffffffff INFO: task syz-executor2:8729 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D25128 8729 5368 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 __rwsem_down_write_failed_common+0xbb9/0x1670 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:738 [inline] ext4_file_write_iter+0x30b/0x1420 fs/ext4/file.c:235 call_write_iter include/linux/fs.h:1808 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_pwrite64+0x181/0x1b0 fs/read_write.c:652 __do_sys_pwrite64 fs/read_write.c:662 [inline] __se_sys_pwrite64 fs/read_write.c:659 [inline] __x64_sys_pwrite64+0x97/0xf0 fs/read_write.c:659 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007f75876e7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457579 RDX: 0000000000000001 RSI: 00000000200005c0 RDI: 0000000000000003 RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f75876e86d4 R13: 00000000004c319d R14: 00000000004d4c38 R15: 00000000ffffffff INFO: task syz-executor2:8730 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D23736 8730 5368 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 __rwsem_down_write_failed_common+0xbb9/0x1670 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:738 [inline] process_measurement+0x190f/0x1bf0 security/integrity/ima/ima_main.c:205 ima_file_check+0xe5/0x130 security/integrity/ima/ima_main.c:391 do_last fs/namei.c:3422 [inline] path_openat+0x134d/0x5160 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_sys_open+0x568/0x700 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x9d/0x100 fs/open.c:1084 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007f75876c6c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457579 RDX: 000000000000275a RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 000000000072c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f75876c76d4 R13: 00000000004c2b26 R14: 00000000004d4140 R15: 00000000ffffffff INFO: task syz-executor2:8738 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D25128 8738 5368 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 __rwsem_down_write_failed_common+0xbb9/0x1670 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:738 [inline] ext4_file_write_iter+0x30b/0x1420 fs/ext4/file.c:235 call_write_iter include/linux/fs.h:1808 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007f75876a5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000000000012 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 000000000072c180 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f75876a66d4 R13: 00000000004c5574 R14: 00000000004d8e98 R15: 00000000ffffffff INFO: task syz-executor2:8739 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D24872 8739 5368 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 __rwsem_down_write_failed_common+0xbb9/0x1670 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:738 [inline] ext4_fallocate+0x31b/0x2300 fs/ext4/extents.c:4957 vfs_fallocate+0x4b4/0x940 fs/open.c:308 ioctl_preallocate+0x1e8/0x300 fs/ioctl.c:482 file_ioctl fs/ioctl.c:498 [inline] do_vfs_ioctl+0x1435/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007f7587684c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000080 RSI: 0000000040305828 RDI: 0000000000000004 RBP: 000000000072c220 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f75876856d4 R13: 00000000004bf74c R14: 00000000004cf658 R15: 00000000ffffffff INFO: task syz-executor2:8743 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D24872 8743 5368 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 __rwsem_down_write_failed_common+0xbb9/0x1670 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:738 [inline] ext4_fallocate+0x31b/0x2300 fs/ext4/extents.c:4957 vfs_fallocate+0x4b4/0x940 fs/open.c:308 ioctl_preallocate+0x1e8/0x300 fs/ioctl.c:482 file_ioctl fs/ioctl.c:498 [inline] do_vfs_ioctl+0x1435/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007f7587663c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000140 RSI: 0000000040305828 RDI: 0000000000000003 RBP: 000000000072c2c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f75876646d4 R13: 00000000004bf74c R14: 00000000004cf658 R15: 00000000ffffffff INFO: task syz-executor0:8756 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #236 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D23400 8756 5341 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 start_this_handle+0x83e/0x1250 fs/jbd2/transaction.c:334 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] file_update_time+0x390/0x640 fs/inode.c:1877 ext4_page_mkwrite+0x1fe/0x14a0 fs/ext4/inode.c:6171 do_page_mkwrite+0x14e/0x660 mm/memory.c:2388 do_shared_fault mm/memory.c:3717 [inline] do_fault mm/memory.c:3756 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x35ca/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x4016a7 Code: 20 48 80 98 80 44 00 90 42 58 0a 83 04 01 a5 85 20 01 00 90 81 99 61 00 72 ac a8 55 10 03 02 00 0b 27 10 06 00 00 08 04 2a 00 <02> 00 81 02 82 80 ca 04 24 00 54 00 07 02 24 01 00 10 02 02 42 29 RSP: 002b:00007ffc249765e0 EFLAGS: 00010287 RAX: 0000001b31825000 RBX: 00000000bedaa82a RCX: 0000001b32820000 RDX: 0000001b31825004 RSI: 0000000000001c9a RDI: ffffffff06d79c9a RBP: 00000000000003de R08: 0000000006d79c9a R09: 0000000006d79c9e R10: 00007ffc24976750 R11: 0000000000000246 R12: 000000000072bf00 R13: 0000000080000000 R14: 00007f5abb46a008 R15: 0000000000000ba5 Showing all locks held in the system: 4 locks held by kworker/u4:0/7: #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0xb43/0x1b90 kernel/workqueue.c:2124 #1: 000000007794059f ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0xb9a/0x1b90 kernel/workqueue.c:2128 #2: 000000009a6e0723 (&type->s_umount_key#30){++++}, at: trylock_super+0x22/0x110 fs/super.c:412 #3: 00000000feb214b2 (&sbi->s_journal_flag_rwsem){.+.+}, at: do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 4 locks held by kworker/u4:3/167: #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0xb43/0x1b90 kernel/workqueue.c:2124 #1: 000000008c1fc3e2 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0xb9a/0x1b90 kernel/workqueue.c:2128 #2: 000000009a6e0723 (&type->s_umount_key#30){++++}, at: trylock_super+0x22/0x110 fs/super.c:412 #3: 00000000feb214b2 (&sbi->s_journal_flag_rwsem){.+.+}, at: do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 1 lock held by khungtaskd/982: #0: 00000000ab4a84b7 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 kernel/locking/lockdep.c:4435 4 locks held by kworker/u4:4/2776: #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000cb693be2 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0xb43/0x1b90 kernel/workqueue.c:2124 #1: 000000007bb994ef ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0xb9a/0x1b90 kernel/workqueue.c:2128 #2: 000000009a6e0723 (&type->s_umount_key#30){++++}, at: trylock_super+0x22/0x110 fs/super.c:412 #3: 00000000feb214b2 (&sbi->s_journal_flag_rwsem){.+.+}, at: do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 3 locks held by rs:main Q:Reg/5209: #0: 00000000663c845f (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 #1: 00000000dedbff4f (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #1: 00000000dedbff4f (sb_writers#3){.+.+}, at: vfs_write+0x42a/0x560 fs/read_write.c:548 #2: 00000000f3576a5a (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_trylock include/linux/fs.h:758 [inline] #2: 00000000f3576a5a (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_file_write_iter+0x2a1/0x1420 fs/ext4/file.c:232 1 lock held by rsyslogd/5211: #0: 00000000e8622796 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 2 locks held by getty/5302: #0: 00000000581b6fd4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000004a1f10b0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5303: #0: 00000000918d2b92 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000f6663dc9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5304: #0: 00000000c1d7718f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000000d7b159f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5305: #0: 0000000034a5a1c6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000002d1d3198 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5306: #0: 00000000e637a257 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000009e115ea8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5307: #0: 00000000740df120 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 0000000071f5b0d8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5308: #0: 00000000502d01f8 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000001150f997 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 6 locks held by syz-executor2/8684: 2 locks held by syz-executor2/8726: #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: sb_start_write include/linux/fs.h:1566 [inline] #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360 #1: 00000000ff7992db (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 00000000ff7992db (&sb->s_type->i_mutex_key#10){+.+.}, at: process_measurement+0x190f/0x1bf0 security/integrity/ima/ima_main.c:205 2 locks held by syz-executor2/8729: #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: vfs_write+0x42a/0x560 fs/read_write.c:548 #1: 00000000ff7992db (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 00000000ff7992db (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_file_write_iter+0x30b/0x1420 fs/ext4/file.c:235 2 locks held by syz-executor2/8730: #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: sb_start_write include/linux/fs.h:1566 [inline] #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360 #1: 0000000090fff23e (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 0000000090fff23e (&sb->s_type->i_mutex_key#10){+.+.}, at: process_measurement+0x190f/0x1bf0 security/integrity/ima/ima_main.c:205 3 locks held by syz-executor2/8738: #0: 000000009b1a5f48 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 #1: 00000000dedbff4f (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #1: 00000000dedbff4f (sb_writers#3){.+.+}, at: vfs_write+0x42a/0x560 fs/read_write.c:548 #2: 0000000090fff23e (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #2: 0000000090fff23e (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_file_write_iter+0x30b/0x1420 fs/ext4/file.c:235 2 locks held by syz-executor2/8739: #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: vfs_fallocate+0x72a/0x940 fs/open.c:307 #1: 0000000090fff23e (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 0000000090fff23e (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_fallocate+0x31b/0x2300 fs/ext4/extents.c:4957 2 locks held by syz-executor2/8743: #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: vfs_fallocate+0x72a/0x940 fs/open.c:307 #1: 00000000ff7992db (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 00000000ff7992db (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_fallocate+0x31b/0x2300 fs/ext4/extents.c:4957 2 locks held by syz-executor0/8756: #0: 00000000d80d1547 (&mm->mmap_sem){++++}, at: __do_page_fault+0x3e3/0xed0 arch/x86/mm/fault.c:1324 #1: 00000000e61ca0fd (sb_pagefaults){.+.+}, at: sb_start_pagefault include/linux/fs.h:1595 [inline] #1: 00000000e61ca0fd (sb_pagefaults){.+.+}, at: ext4_page_mkwrite+0x1d0/0x14a0 fs/ext4/inode.c:6170 3 locks held by syz-executor0/8757: #0: 000000000d7b58cc (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 #1: 00000000dedbff4f (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2759 [inline] #1: 00000000dedbff4f (sb_writers#3){.+.+}, at: vfs_write+0x42a/0x560 fs/read_write.c:548 #2: 000000008588119e (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_trylock include/linux/fs.h:758 [inline] #2: 000000008588119e (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_file_write_iter+0x2a1/0x1420 fs/ext4/file.c:232 2 locks held by syz-executor0/8765: #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: sb_start_write include/linux/fs.h:1566 [inline] #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: mnt_want_write_file+0x68/0x110 fs/namespace.c:418 #1: 000000008588119e (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] #1: 000000008588119e (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_ioctl+0x529/0x4210 fs/ext4/ioctl.c:836 1 lock held by syz-executor0/8768: #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: sb_start_write include/linux/fs.h:1566 [inline] #0: 00000000dedbff4f (sb_writers#3){.+.+}, at: mnt_want_write_file+0x68/0x110 fs/namespace.c:418 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 982 Comm: khungtaskd Not tainted 4.19.0-rc5+ #236 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:144 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0xb3e/0x1050 kernel/hung_task.c:265 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 Sending NMI from CPU 1 to CPUs 0: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.011 msecs NMI backtrace for cpu 0 CPU: 0 PID: 8684 Comm: syz-executor2 Not tainted 4.19.0-rc5+ #236 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mext_check_coverage.constprop.13+0x227/0x510 fs/ext4/move_extent.c:102 Code: 49 8d 7c 24 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 36 02 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 64 24 10 49 8d 7c 24 04 <48> 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 RSP: 0018:ffff88019ca6f1c0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff8801cb7cf100 RCX: ffffc90005e92000 RDX: 1ffff100396f9e22 RSI: ffffffff821e390b RDI: ffff88018f410590 RBP: ffff88019ca6f270 R08: ffff8801ce532480 R09: 1ffffffff1273955 R10: ffffed003b5e4732 R11: ffff8801daf23993 R12: ffff88018f41058c R13: 0000000095763ea2 R14: ffff88018f410770 R15: ffff88019ca6f3e0 FS: 00007f758772a700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 00000001cf2e2000 CR4: 00000000001406f0 Call Trace: move_extent_per_page fs/ext4/move_extent.c:323 [inline] ext4_move_extents+0x2784/0x3c20 fs/ext4/move_extent.c:669 ext4_ioctl+0x3154/0x4210 fs/ext4/ioctl.c:799 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7587729c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000300 RSI: 00000000c028660f RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f758772a6d4 R13: 00000000004bf5dd R14: 00000000004cf460 R15: 00000000ffffffff