IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready JFS: discard option not supported on device find_entry called with index = 0 read_mapping_page failed! ERROR: (device loop4): txAbort: INFO: task syz-executor.3:4201 blocked for more than 140 seconds. Not tainted 4.19.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D10984 4201 1 0x00080006 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x2e8/0x8f0 kernel/sched/core.c:3473 schedule+0x31/0x90 kernel/sched/core.c:3517 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3575 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x224/0x730 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 lmLogClose+0x34/0x180 fs/jfs/jfs_logmgr.c:1465 jfs_umount+0xe0/0x100 fs/jfs/jfs_umount.c:129 jfs_put_super+0x4a/0xa0 fs/jfs/super.c:223 generic_shutdown_super+0x6a/0x100 fs/super.c:456 kill_block_super+0x22/0x40 fs/super.c:1185 deactivate_locked_super+0x2b/0x70 fs/super.c:329 deactivate_super fs/super.c:360 [inline] deactivate_super+0x4c/0x50 fs/super.c:356 cleanup_mnt+0x36/0x70 fs/namespace.c:1098 __cleanup_mnt+0xd/0x10 fs/namespace.c:1105 task_work_run+0x89/0xb0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0xe7/0x100 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x159/0x160 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7ff7be826e17 Code: Bad RIP value. RSP: 002b:00007ffc03aa7728 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff7be826e17 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffc03aa77e0 RBP: 00007ffc03aa77e0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc03aa88a0 R13: 00007ff7be8703b9 R14: 000000000000ba1a R15: 0000000000000004 INFO: task syz-executor.0:4205 blocked for more than 140 seconds. Not tainted 4.19.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D10968 4205 1 0x00080006 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x2e8/0x8f0 kernel/sched/core.c:3473 schedule+0x31/0x90 kernel/sched/core.c:3517 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3575 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x224/0x730 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 lmLogClose+0x34/0x180 fs/jfs/jfs_logmgr.c:1465 jfs_umount+0xe0/0x100 fs/jfs/jfs_umount.c:129 jfs_put_super+0x4a/0xa0 fs/jfs/super.c:223 generic_shutdown_super+0x6a/0x100 fs/super.c:456 kill_block_super+0x22/0x40 fs/super.c:1185 deactivate_locked_super+0x2b/0x70 fs/super.c:329 deactivate_super fs/super.c:360 [inline] deactivate_super+0x4c/0x50 fs/super.c:356 cleanup_mnt+0x36/0x70 fs/namespace.c:1098 __cleanup_mnt+0xd/0x10 fs/namespace.c:1105 task_work_run+0x89/0xb0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0xe7/0x100 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x159/0x160 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f1b1cc0de17 Code: Bad RIP value. RSP: 002b:00007fff0bddbbb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1b1cc0de17 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff0bddbc70 RBP: 00007fff0bddbc70 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff0bddcd30 R13: 00007f1b1cc573b9 R14: 000000000000bad8 R15: 0000000000000004 INFO: task syz-executor.2:4207 blocked for more than 140 seconds. Not tainted 4.19.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D11176 4207 1 0x00080006 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x2e8/0x8f0 kernel/sched/core.c:3473 schedule+0x31/0x90 kernel/sched/core.c:3517 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3575 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x224/0x730 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 lmLogClose+0x34/0x180 fs/jfs/jfs_logmgr.c:1465 jfs_umount+0xe0/0x100 fs/jfs/jfs_umount.c:129 jfs_put_super+0x4a/0xa0 fs/jfs/super.c:223 generic_shutdown_super+0x6a/0x100 fs/super.c:456 kill_block_super+0x22/0x40 fs/super.c:1185 deactivate_locked_super+0x2b/0x70 fs/super.c:329 deactivate_super fs/super.c:360 [inline] deactivate_super+0x4c/0x50 fs/super.c:356 cleanup_mnt+0x36/0x70 fs/namespace.c:1098 __cleanup_mnt+0xd/0x10 fs/namespace.c:1105 task_work_run+0x89/0xb0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0xe7/0x100 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x159/0x160 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f40df032e17 Code: Bad RIP value. RSP: 002b:00007ffd986d02e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f40df032e17 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd986d03a0 RBP: 00007ffd986d03a0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd986d1460 R13: 00007f40df07c3b9 R14: 000000000000bbd2 R15: 0000000000000004 Showing all locks held in the system: 1 lock held by khungtaskd/993: #0: 00000000d4ed42b0 (rcu_read_lock){....}, at: debug_show_all_locks+0x23/0x10d kernel/locking/lockdep.c:4435 2 locks held by getty/3548: #0: 00000000f1e41a3d (&tty->ldisc_sem){....}, at: ldsem_down_read+0xe/0x10 drivers/tty/tty_ldsem.c:353 #1: 000000008952dbe0 (&ldata->atomic_read_lock){....}, at: n_tty_read+0xbc/0x860 drivers/tty/n_tty.c:2140 2 locks held by syz-executor.3/4201: #0: 0000000005cf2411 (&type->s_umount_key#45){....}, at: deactivate_super fs/super.c:359 [inline] #0: 0000000005cf2411 (&type->s_umount_key#45){....}, at: deactivate_super+0x44/0x50 fs/super.c:356 #1: 00000000302fe3c0 (jfs_log_mutex){....}, at: lmLogClose+0x34/0x180 fs/jfs/jfs_logmgr.c:1465 2 locks held by syz-executor.0/4205: #0: 000000003e0415f0 (&type->s_umount_key#45){....}, at: deactivate_super fs/super.c:359 [inline] #0: 000000003e0415f0 (&type->s_umount_key#45){....}, at: deactivate_super+0x44/0x50 fs/super.c:356 #1: 00000000302fe3c0 (jfs_log_mutex){....}, at: lmLogClose+0x34/0x180 fs/jfs/jfs_logmgr.c:1465 2 locks held by syz-executor.2/4207: #0: 00000000b8a414ca (&type->s_umount_key#45){....}, at: deactivate_super fs/super.c:359 [inline] #0: 00000000b8a414ca (&type->s_umount_key#45){....}, at: deactivate_super+0x44/0x50 fs/super.c:356 #1: 00000000302fe3c0 (jfs_log_mutex){....}, at: lmLogClose+0x34/0x180 fs/jfs/jfs_logmgr.c:1465 2 locks held by syz-executor.1/4219: #0: 00000000ba552d72 (&type->s_umount_key#45){....}, at: deactivate_super fs/super.c:359 [inline] #0: 00000000ba552d72 (&type->s_umount_key#45){....}, at: deactivate_super+0x44/0x50 fs/super.c:356 #1: 00000000302fe3c0 (jfs_log_mutex){....}, at: lmLogClose+0x34/0x180 fs/jfs/jfs_logmgr.c:1465 2 locks held by syz-executor.5/6219: #0: 000000007159ceb4 (&type->s_umount_key#45){....}, at: deactivate_super fs/super.c:359 [inline] #0: 000000007159ceb4 (&type->s_umount_key#45){....}, at: deactivate_super+0x44/0x50 fs/super.c:356 #1: 00000000302fe3c0 (jfs_log_mutex){....}, at: lmLogClose+0x34/0x180 fs/jfs/jfs_logmgr.c:1465 1 lock held by syz-executor.4/6557: #0: 000000006ed5cfef (&type->s_umount_key#45){....}, at: deactivate_super fs/super.c:359 [inline] #0: 000000006ed5cfef (&type->s_umount_key#45){....}, at: deactivate_super+0x44/0x50 fs/super.c:356 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 993 Comm: khungtaskd Not tainted 4.19.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x89/0xba lib/dump_stack.c:113 nmi_cpu_backtrace.cold.0+0x14/0x53 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0xc5/0xce 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+0x2c7/0x400 kernel/hung_task.c:265 kthread+0x119/0x130 kernel/kthread.c:246 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:413 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:57