MINIX-fs: file system does not have enough zmap blocks allocated. Refusing to mount.
MINIX-fs: bad superblock or unable to read bitmaps
------------[ cut here ]------------
ODEBUG: free active (active state 1) object type: rcu_head hint: (null)
kobject: 'loop0' (00000000b2022787): fill_kobj_path: path = '/devices/virtual/block/loop0'
WARNING: CPU: 0 PID: 5731 at lib/debugobjects.c:329 debug_print_object+0x16a/0x210 lib/debugobjects.c:326
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 5731 Comm: syz-executor5 Not tainted 4.19.0-rc7-next-20181015+ #94
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+0x244/0x39d lib/dump_stack.c:113
panic+0x2ad/0x55c kernel/panic.c:188
kobject: 'loop3' (00000000162fa9a0): kobject_uevent_env
__warn.cold.8+0x20/0x45 kernel/panic.c:540
kobject: 'loop3' (00000000162fa9a0): fill_kobj_path: path = '/devices/virtual/block/loop3'
report_bug+0x254/0x2d0 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:178 [inline]
do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969
RIP: 0010:debug_print_object+0x16a/0x210 lib/debugobjects.c:326
Code: 41 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 92 00 00 00 48 8b 14 dd 80 08 41 88 4c 89 fe 48 c7 c7 20 fe 40 88 e8 36 c3 b3 fd <0f> 0b 83 05 b9 ff 5e 06 01 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffff88018840f440 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81647515 RDI: 0000000000000005
RBP: ffff88018840f480 R08: ffff880188bfa280 R09: ffffed003b5c3eda
R10: ffffed003b5c3eda R11: ffff8801dae1f6d7 R12: 0000000000000001
R13: ffffffff8939a4e0 R14: 0000000000000000 R15: ffffffff884102c0
__debug_check_no_obj_freed lib/debugobjects.c:786 [inline]
debug_check_no_obj_freed+0x3ae/0x58d lib/debugobjects.c:818
kmem_cache_free+0x202/0x290 mm/slab.c:3759
free_task_struct kernel/fork.c:163 [inline]
free_task+0x16e/0x1f0 kernel/fork.c:457
__put_task_struct+0x2e6/0x620 kernel/fork.c:730
put_task_struct include/linux/sched/task.h:96 [inline]
finish_task_switch+0x66b/0x920 kernel/sched/core.c:2715
context_switch kernel/sched/core.c:2834 [inline]
__schedule+0x8d7/0x21d0 kernel/sched/core.c:3480
schedule+0xfe/0x460 kernel/sched/core.c:3524
freezable_schedule include/linux/freezer.h:172 [inline]
do_nanosleep+0x21e/0x750 kernel/time/hrtimer.c:1688
hrtimer_nanosleep+0x2d4/0x620 kernel/time/hrtimer.c:1742
__do_sys_nanosleep kernel/time/hrtimer.c:1776 [inline]
__se_sys_nanosleep kernel/time/hrtimer.c:1763 [inline]
__x64_sys_nanosleep+0x1e7/0x280 kernel/time/hrtimer.c:1763
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x483060
Code: 00 00 48 c7 c0 d4 ff ff ff 64 c7 00 16 00 00 00 31 c0 eb be 66 0f 1f 44 00 00 83 3d 11 34 5c 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 f8 f8 ff c3 48 83 ec 08 e8 ba 70 fd ff
RSP: 002b:00007ffdffb0ba28 EFLAGS: 00000246 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 00000000000dfad0 RCX: 0000000000483060
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffdffb0ba30
RBP: 000000000000103f R08: 0000000000000001 R09: 00000000022ee940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00000000000dfaa3 R14: 00000000000004c0 R15: 0000000000000005
======================================================
WARNING: possible circular locking dependency detected
4.19.0-rc7-next-20181015+ #94 Not tainted
------------------------------------------------------
syz-executor5/5731 is trying to acquire lock:
00000000dcf27fdb ((console_sem).lock){-.-.}, at: down_trylock+0x13/0x70 kernel/locking/semaphore.c:136
but task is already holding lock:
00000000036e0c72 (&obj_hash[i].lock){-.-.}, at: __debug_check_no_obj_freed lib/debugobjects.c:777 [inline]
00000000036e0c72 (&obj_hash[i].lock){-.-.}, at: debug_check_no_obj_freed+0x17a/0x58d lib/debugobjects.c:818
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&obj_hash[i].lock){-.-.}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
__debug_object_init+0x127/0x1290 lib/debugobjects.c:384
debug_object_init+0x16/0x20 lib/debugobjects.c:432
debug_hrtimer_init kernel/time/hrtimer.c:410 [inline]
debug_init kernel/time/hrtimer.c:458 [inline]
hrtimer_init+0x97/0x490 kernel/time/hrtimer.c:1308
init_dl_task_timer+0x1b/0x50 kernel/sched/deadline.c:1057
__sched_fork+0x2ae/0x590 kernel/sched/core.c:2166
init_idle+0x75/0x740 kernel/sched/core.c:5382
sched_init+0xb33/0xc02 kernel/sched/core.c:6065
start_kernel+0x4be/0xa2b init/main.c:608
x86_64_start_reservations+0x2e/0x30 arch/x86/kernel/head64.c:472
x86_64_start_kernel+0x76/0x79 arch/x86/kernel/head64.c:451
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
-> #2 (&rq->lock){-.-.}:
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:144
rq_lock kernel/sched/sched.h:1127 [inline]
task_fork_fair+0xb0/0x6d0 kernel/sched/fair.c:9768
sched_fork+0x443/0xba0 kernel/sched/core.c:2359
copy_process+0x2585/0x8770 kernel/fork.c:1887
_do_fork+0x1cb/0x11c0 kernel/fork.c:2216
kernel_thread+0x34/0x40 kernel/fork.c:2275
rest_init+0x28/0x372 init/main.c:409
arch_call_rest_init+0xe/0x1b
start_kernel+0x9f0/0xa2b init/main.c:745
x86_64_start_reservations+0x2e/0x30 arch/x86/kernel/head64.c:472
x86_64_start_kernel+0x76/0x79 arch/x86/kernel/head64.c:451
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
-> #1 (&p->pi_lock){-.-.}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
try_to_wake_up+0xd2/0x12e0 kernel/sched/core.c:1965
wake_up_process+0x10/0x20 kernel/sched/core.c:2129
__up.isra.1+0x1c0/0x2a0 kernel/locking/semaphore.c:262
up+0x13c/0x1c0 kernel/locking/semaphore.c:187
__up_console_sem+0xbe/0x1b0 kernel/printk/printk.c:236
console_unlock+0x80c/0x1190 kernel/printk/printk.c:2432
vprintk_emit+0x391/0x990 kernel/printk/printk.c:1922
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
check_stack_usage kernel/exit.c:755 [inline]
do_exit.cold.18+0x57/0x16f kernel/exit.c:916
do_group_exit+0x177/0x440 kernel/exit.c:970
__do_sys_exit_group kernel/exit.c:981 [inline]
__se_sys_exit_group kernel/exit.c:979 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:979
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #0 ((console_sem).lock){-.-.}:
lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3845
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
down_trylock+0x13/0x70 kernel/locking/semaphore.c:136
__down_trylock_console_sem+0xae/0x1f0 kernel/printk/printk.c:219
console_trylock+0x15/0xa0 kernel/printk/printk.c:2247
console_trylock_spinning kernel/printk/printk.c:1653 [inline]
vprintk_emit+0x372/0x990 kernel/printk/printk.c:1921
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
__warn_printk+0x8c/0xe0 kernel/panic.c:594
debug_print_object+0x16a/0x210 lib/debugobjects.c:326
__debug_check_no_obj_freed lib/debugobjects.c:786 [inline]
debug_check_no_obj_freed+0x3ae/0x58d lib/debugobjects.c:818
kmem_cache_free+0x202/0x290 mm/slab.c:3759
free_task_struct kernel/fork.c:163 [inline]
free_task+0x16e/0x1f0 kernel/fork.c:457
__put_task_struct+0x2e6/0x620 kernel/fork.c:730
put_task_struct include/linux/sched/task.h:96 [inline]
finish_task_switch+0x66b/0x920 kernel/sched/core.c:2715
context_switch kernel/sched/core.c:2834 [inline]
__schedule+0x8d7/0x21d0 kernel/sched/core.c:3480
schedule+0xfe/0x460 kernel/sched/core.c:3524
freezable_schedule include/linux/freezer.h:172 [inline]
do_nanosleep+0x21e/0x750 kernel/time/hrtimer.c:1688
hrtimer_nanosleep+0x2d4/0x620 kernel/time/hrtimer.c:1742
__do_sys_nanosleep kernel/time/hrtimer.c:1776 [inline]
__se_sys_nanosleep kernel/time/hrtimer.c:1763 [inline]
__x64_sys_nanosleep+0x1e7/0x280 kernel/time/hrtimer.c:1763
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
other info that might help us debug this:
Chain exists of:
(console_sem).lock --> &rq->lock --> &obj_hash[i].lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&obj_hash[i].lock);
lock(&rq->lock);
lock(&obj_hash[i].lock);
lock((console_sem).lock);
*** DEADLOCK ***
1 lock held by syz-executor5/5731:
#0: 00000000036e0c72 (&obj_hash[i].lock){-.-.}, at: __debug_check_no_obj_freed lib/debugobjects.c:777 [inline]
#0: 00000000036e0c72 (&obj_hash[i].lock){-.-.}, at: debug_check_no_obj_freed+0x17a/0x58d lib/debugobjects.c:818
stack backtrace:
CPU: 0 PID: 5731 Comm: syz-executor5 Not tainted 4.19.0-rc7-next-20181015+ #94
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+0x244/0x39d lib/dump_stack.c:113
print_circular_bug.isra.35.cold.54+0x1bd/0x27d kernel/locking/lockdep.c:1222
check_prev_add kernel/locking/lockdep.c:1864 [inline]
check_prevs_add kernel/locking/lockdep.c:1977 [inline]
validate_chain kernel/locking/lockdep.c:2348 [inline]
__lock_acquire+0x3399/0x4c20 kernel/locking/lockdep.c:3342
lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3845
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
down_trylock+0x13/0x70 kernel/locking/semaphore.c:136
__down_trylock_console_sem+0xae/0x1f0 kernel/printk/printk.c:219
console_trylock+0x15/0xa0 kernel/printk/printk.c:2247
console_trylock_spinning kernel/printk/printk.c:1653 [inline]
vprintk_emit+0x372/0x990 kernel/printk/printk.c:1921
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
__warn_printk+0x8c/0xe0 kernel/panic.c:594
debug_print_object+0x16a/0x210 lib/debugobjects.c:326
__debug_check_no_obj_freed lib/debugobjects.c:786 [inline]
debug_check_no_obj_freed+0x3ae/0x58d lib/debugobjects.c:818
kmem_cache_free+0x202/0x290 mm/slab.c:3759
free_task_struct kernel/fork.c:163 [inline]
free_task+0x16e/0x1f0 kernel/fork.c:457
__put_task_struct+0x2e6/0x620 kernel/fork.c:730
put_task_struct include/linux/sched/task.h:96 [inline]
finish_task_switch+0x66b/0x920 kernel/sched/core.c:2715
context_switch kernel/sched/core.c:2834 [inline]
__schedule+0x8d7/0x21d0 kernel/sched/core.c:3480
schedule+0xfe/0x460 kernel/sched/core.c:3524
freezable_schedule include/linux/freezer.h:172 [inline]
do_nanosleep+0x21e/0x750 kernel/time/hrtimer.c:1688
hrtimer_nanosleep+0x2d4/0x620 kernel/time/hrtimer.c:1742
__do_sys_nanosleep kernel/time/hrtimer.c:1776 [inline]
__se_sys_nanosleep kernel/time/hrtimer.c:1763 [inline]
__x64_sys_nanosleep+0x1e7/0x280 kernel/time/hrtimer.c:1763
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x483060
Code: 00 00 48 c7 c0 d4 ff ff ff 64 c7 00 16 00 00 00 31 c0 eb be 66 0f 1f 44 00 00 83 3d 11 34 5c 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 f8 f8 ff c3 48 83 ec 08 e8 ba 70 fd ff
RSP: 002b:00007ffdffb0ba28 EFLAGS: 00000246 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 00000000000dfad0 RCX: 0000000000483060
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffdffb0ba30
RBP: 00000000000010
Lost 2 message(s)!
Kernel Offset: disabled
Rebooting in 86400 seconds..