kernel msg: ebtables bug: please report to author: Wrong len argument kernel msg: ebtables bug: please report to author: Wrong len argument INFO: task jbd2/sda1-8:3077 blocked for more than 140 seconds. Not tainted 4.19.0-rc7+ #140 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. jbd2/sda1-8 D17832 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:5205 blocked for more than 140 seconds. Not tainted 4.19.0-rc7+ #140 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. rs:main Q:Reg D22120 5205 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 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 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: 0033:0x7f51fbdd319d 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:00007f51fa374000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000105 RCX: 00007f51fbdd319d RDX: 0000000000000105 RSI: 0000000001e4da90 RDI: 0000000000000005 RBP: 0000000001e4da90 R08: 6c656e72656b2072 R09: 35353320205b203a R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007f51fa374480 R14: 0000000000000002 R15: 0000000001e4d890 Showing all locks held in the system: 4 locks held by kworker/u4:3/254: #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: process_one_work+0xb43/0x1b90 kernel/workqueue.c:2124 #1: 0000000041103c45 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0xb9a/0x1b90 kernel/workqueue.c:2128 #2: 00000000c3f0fab8 (&type->s_umount_key#30){++++}, at: trylock_super+0x22/0x110 fs/super.c:412 #3: 00000000edf5fa67 (&sbi->s_journal_flag_rwsem){++++}, at: do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 1 lock held by khungtaskd/977: #0: 000000004bbc82ca (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 kernel/locking/lockdep.c:4435 3 locks held by rs:main Q:Reg/5205: #0: 000000002882aabe (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 #1: 000000005a84482a (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2761 [inline] #1: 000000005a84482a (sb_writers#3){.+.+}, at: vfs_write+0x42a/0x560 fs/read_write.c:548 #2: 000000005e136478 (&sb->s_type->i_mutex_key#10){++++}, at: inode_trylock include/linux/fs.h:758 [inline] #2: 000000005e136478 (&sb->s_type->i_mutex_key#10){++++}, at: ext4_file_write_iter+0x2a1/0x1420 fs/ext4/file.c:232 1 lock held by rsyslogd/5207: #0: 00000000e2a35f7d (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 2 locks held by getty/5298: #0: 00000000a6d0c61d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000bc9fbf4a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5299: #0: 000000004770c14c (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000d6eaff7d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5300: #0: 000000008904fefe (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000000754b744 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5301: #0: 000000002c38339d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000634fe0c2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5302: #0: 00000000d9de7336 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 000000000cd4e724 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5303: #0: 0000000055e7cebd (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 0000000058887777 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/5304: #0: 00000000b8c48511 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000f6f45381 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 4 locks held by kworker/u4:4/7064: #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000a963864f ((wq_completion)"writeback"){+.+.}, at: process_one_work+0xb43/0x1b90 kernel/workqueue.c:2124 #1: 00000000066ce570 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0xb9a/0x1b90 kernel/workqueue.c:2128 #2: 00000000c3f0fab8 (&type->s_umount_key#30){++++}, at: trylock_super+0x22/0x110 fs/super.c:412 #3: 00000000edf5fa67 (&sbi->s_journal_flag_rwsem){++++}, at: do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340 6 locks held by syz-executor1/20870: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 977 Comm: khungtaskd Not tainted 4.19.0-rc7+ #140 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 0 to CPUs 1: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.484 msecs NMI backtrace for cpu 1 CPU: 1 PID: 20870 Comm: syz-executor1 Not tainted 4.19.0-rc7+ #140 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mark_lock+0x1a/0x1cb0 kernel/locking/lockdep.c:3094 Code: d8 61 00 eb d8 e8 86 d8 61 00 eb 87 0f 1f 40 00 55 4c 8d 46 20 41 89 d1 49 89 fb 48 ba 00 00 00 00 00 fc ff df 48 89 e5 41 57 <44> 89 c9 41 56 4c 8d 7d d8 41 be 01 00 00 00 41 55 41 d3 e6 41 54 RSP: 0018:ffff880196c0eae0 EFLAGS: 00000002 RAX: 0000000000000004 RBX: 0000000000000002 RCX: 1ffff10039c66589 RDX: dffffc0000000000 RSI: ffff8801ce332c50 RDI: ffff8801ce332380 RBP: ffff880196c0eae8 R08: ffff8801ce332c70 R09: 0000000000000002 R10: 0000000000000000 R11: ffff8801ce332380 R12: ffff8801ce332c00 R13: ffffed0039c6657f R14: ffff8801ce332380 R15: dffffc0000000000 FS: 00007f1694f0d700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 0000000192177000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_held_locks+0xc7/0x130 kernel/locking/lockdep.c:2805 __trace_hardirqs_on_caller kernel/locking/lockdep.c:2826 [inline] lockdep_hardirqs_on+0x19e/0x5c0 kernel/locking/lockdep.c:2879 trace_hardirqs_on+0xbd/0x310 kernel/trace/trace_preemptirq.c:30 lookup_bh_lru fs/buffer.c:1278 [inline] __find_get_block+0x2f7/0xf20 fs/buffer.c:1290 __getblk_gfp+0xf4/0xd50 fs/buffer.c:1316 sb_getblk_gfp include/linux/buffer_head.h:332 [inline] __read_extent_tree_block+0x11d/0xab0 fs/ext4/extents.c:509 ext4_find_extent+0x38a/0x9b0 fs/ext4/extents.c:908 get_ext_path fs/ext4/move_extent.c:31 [inline] mext_check_coverage.constprop.13+0x2b0/0x510 fs/ext4/move_extent.c:98 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: 0033:0x457569 Code: fd b3 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1694f0cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000020001300 RSI: 00000000c028660f RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1694f0d6d4 R13: 00000000004bf5c9 R14: 00000000004cf460 R15: 00000000ffffffff