binder: 20400 RLIMIT_NICE not set
binder: undelivered death notification, 0000000000000000
INFO: task syz-executor7:20404 blocked for more than 120 seconds.
Not tainted 4.15.0-rc7-mm1+ #56
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor7 D23040 20404 4766 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2845 [inline]
__schedule+0x8eb/0x2060 kernel/sched/core.c:3421
schedule+0xf5/0x430 kernel/sched/core.c:3480
schedule_timeout+0x1a3/0x230 kernel/time/timer.c:1769
do_wait_for_common kernel/sched/completion.c:86 [inline]
__wait_for_common kernel/sched/completion.c:107 [inline]
wait_for_common kernel/sched/completion.c:118 [inline]
wait_for_completion+0x415/0x770 kernel/sched/completion.c:139
exit_aio+0x463/0x520 fs/aio.c:903
__mmput kernel/fork.c:968 [inline]
mmput+0x1b1/0x6c0 kernel/fork.c:992
exit_mm kernel/exit.c:544 [inline]
do_exit+0x90a/0x1ad0 kernel/exit.c:856
do_group_exit+0x149/0x400 kernel/exit.c:972
get_signal+0x73f/0x16c0 kernel/signal.c:2337
do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0x258/0x2f0 arch/x86/entry/common.c:161
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
entry_SYSCALL_64_fastpath+0x9e/0xa0
RIP: 0033:0x452df9
RSP: 002b:00007fecd7933ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000071bf80 RCX: 0000000000452df9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000071bf80
RBP: 000000000071bf80 R08: 000000000000016f R09: 000000000071bf58
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000a2f7ef R14: 00007fecd79349c0 R15: 0000000000000002
Showing all locks held in the system:
2 locks held by khungtaskd/748:
#0: (rcu_read_lock){....}, at: [<00000000f871a886>] check_hung_uninterruptible_tasks kernel/hung_task.c:175 [inline]
#0: (rcu_read_lock){....}, at: [<00000000f871a886>] watchdog+0x1c5/0xd60 kernel/hung_task.c:249
#1: (tasklist_lock){.+.+}, at: [<000000005010250d>] debug_show_all_locks+0xd3/0x400 kernel/locking/lockdep.c:4464
1 lock held by rsyslogd/3510:
#0: (&f->f_pos_lock){+.+.}, at: [<00000000f44f2f62>] __fdget_pos+0x12b/0x190 fs/file.c:765
2 locks held by getty/3632:
#0: (&tty->ldisc_sem){++++}, at: [<0000000001be160a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000f2774bfd>] n_tty_read+0x2ef/0x1a00 drivers/tty/n_tty.c:2131
2 locks held by getty/3633:
#0: (&tty->ldisc_sem){++++}, at: [<0000000001be160a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000f2774bfd>] n_tty_read+0x2ef/0x1a00 drivers/tty/n_tty.c:2131
2 locks held by getty/3634:
#0: (&tty->ldisc_sem){++++}, at: [<0000000001be160a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000f2774bfd>] n_tty_read+0x2ef/0x1a00 drivers/tty/n_tty.c:2131
2 locks held by getty/3635:
#0: (&tty->ldisc_sem){++++}, at: [<0000000001be160a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000f2774bfd>] n_tty_read+0x2ef/0x1a00 drivers/tty/n_tty.c:2131
2 locks held by getty/3636:
#0: (&tty->ldisc_sem){++++}, at: [<0000000001be160a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000f2774bfd>] n_tty_read+0x2ef/0x1a00 drivers/tty/n_tty.c:2131
2 locks held by getty/3637:
#0: (&tty->ldisc_sem){++++}, at: [<0000000001be160a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000f2774bfd>] n_tty_read+0x2ef/0x1a00 drivers/tty/n_tty.c:2131
2 locks held by getty/3940:
#0: (&tty->ldisc_sem){++++}, at: [<0000000001be160a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000f2774bfd>] n_tty_read+0x2ef/0x1a00 drivers/tty/n_tty.c:2131
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 748 Comm: khungtaskd Not tainted 4.15.0-rc7-mm1+ #56
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
nmi_cpu_backtrace+0x1d2/0x210 lib/nmi_backtrace.c:103
nmi_trigger_cpumask_backtrace+0x122/0x180 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:138 [inline]
check_hung_task kernel/hung_task.c:132 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:190 [inline]
watchdog+0x90c/0xd60 kernel/hung_task.c:249
kthread+0x33c/0x400 kernel/kthread.c:238
ret_from_fork+0x37/0x50 arch/x86/entry/entry_64.S:530
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.15.0-rc7-mm1+ #56
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:update_blocked_averages+0x70/0x1b60 kernel/sched/fair.c:7349
RSP: 0018:ffff8801db2074c8 EFLAGS: 00000286
RAX: ffffed003b640eaa RBX: 000000000002c240 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8667eb40
RBP: ffff8801db207818 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801db22c240 R14: ffff8801db2077f0 R15: 1ffff1003b640f14
FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001896cd8 CR3: 0000000006822006 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rebalance_domains+0x145/0xcc0 kernel/sched/fair.c:9123
run_rebalance_domains+0x378/0x770 kernel/sched/fair.c:9384
__do_softirq+0x2d7/0xb85 kernel/softirq.c:285
invoke_softirq kernel/softirq.c:365 [inline]
irq_exit+0x1cc/0x200 kernel/softirq.c:405
scheduler_ipi+0x318/0x820 kernel/sched/core.c:1804
smp_reschedule_interrupt+0xe6/0x670 arch/x86/kernel/smp.c:277
reschedule_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:950
RIP: 0010:native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:54
RSP: 0018:ffffffff86807c38 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff02
RAX: dffffc0000000000 RBX: 1ffffffff0d00f8a RCX: 0000000000000000
RDX: 1ffffffff0d19228 RSI: 0000000000000001 RDI: ffffffff868c9140
RBP: ffffffff86807c38 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff86807cf0 R14: ffffffff870401e0 R15: 0000000000000000
arch_safe_halt arch/x86/include/asm/paravirt.h:93 [inline]
default_idle+0xbf/0x430 arch/x86/kernel/process.c:354
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:345
default_idle_call+0x36/0x90 kernel/sched/idle.c:98
cpuidle_idle_call kernel/sched/idle.c:156 [inline]
do_idle+0x24a/0x3b0 kernel/sched/idle.c:246
cpu_startup_entry+0x104/0x120 kernel/sched/idle.c:351
rest_init+0xed/0xf0 init/main.c:436
start_kernel+0x7f1/0x819 init/main.c:716
x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378
x86_64_start_kernel+0x77/0x7a arch/x86/kernel/head64.c:359
secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:237
Code: ff 48 01 d0 48 c7 85 38 fd ff ff b3 8a b5 41 48 c7 85 40 fd ff ff 88 71 5b 86 48 c7 85 48 fd ff ff d0 12 4f 81 c7 00 f1 f1 f1 f1 40 04 04 f2 f2 f2 c7 40 08 f2 f2 f2 f2 c7 40 0c 04 f2 f2 f2