INFO: task syz-executor.1:13474 can't die for more than 143 seconds.
task:syz-executor.1 state:R running task stack:27320 pid:13474 ppid: 3782 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4d90 kernel/sched/core.c:6296
preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6462
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
vprintk_emit+0x1c9/0x4f0 kernel/printk/printk.c:2249
vprintk+0x80/0x90 kernel/printk/printk_safe.c:50
_printk+0xba/0xed kernel/printk/printk.c:2269
show_free_areas+0xa65/0x1120 mm/page_alloc.c:5930
show_mem+0x31/0x191 lib/show_mem.c:17
warn_alloc_show_mem mm/page_alloc.c:4213 [inline]
warn_alloc.cold+0x10e/0x17a mm/page_alloc.c:4236
__vmalloc_area_node mm/vmalloc.c:2969 [inline]
__vmalloc_node_range+0xc44/0xe50 mm/vmalloc.c:3097
vmalloc_user+0x67/0x80 mm/vmalloc.c:3233
kcov_mmap+0x2b/0x140 kernel/kcov.c:468
call_mmap include/linux/fs.h:2084 [inline]
mmap_region+0xd8e/0x1660 mm/mmap.c:1793
do_mmap+0x869/0xfb0 mm/mmap.c:1582
vm_mmap_pgoff+0x1b7/0x290 mm/util.c:519
ksys_mmap_pgoff+0x40d/0x5a0 mm/mmap.c:1630
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f9e0d9eeb42
RSP: 002b:00007fff98736b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f9e0d9eeb42
RDX: 0000000000000003 RSI: 0000000000200000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00000000000000db R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007f9e0db021b8
R13: 0000000000000003 R14: 00007fff98736c50 R15: 0000000000000003
INFO: task syz-executor.1:13480 blocked for more than 143 seconds.
Not tainted 5.16.0-rc4-next-20211208-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:23792 pid:13480 ppid: 3782 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4d90 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032
__down_read_common kernel/locking/rwsem.c:1214 [inline]
__down_read kernel/locking/rwsem.c:1223 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1463
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
exit_mm kernel/exit.c:483 [inline]
do_exit+0xa0a/0x2c20 kernel/exit.c:819
do_group_exit+0x125/0x310 kernel/exit.c:929
get_signal+0x34c/0x28b0 kernel/signal.c:2859
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f9e0d9eeaf9
RSP: 002b:00007f9e0c964188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffe00 RBX: 00007f9e0db01f60 RCX: 00007f9e0d9eeaf9
RDX: 000000000000001c RSI: 0000000020000180 RDI: 0000000000000005
RBP: 00007f9e0da48ff7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff98736acf R14: 00007f9e0c964300 R15: 0000000000022000
INFO: task syz-executor.1:13501 can't die for more than 144 seconds.
task:syz-executor.1 state:D stack:29584 pid:13501 ppid: 3782 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4d90 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032
__down_read_common kernel/locking/rwsem.c:1214 [inline]
__down_read kernel/locking/rwsem.c:1223 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1463
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348
handle_page_fault arch/x86/mm/fault.c:1484 [inline]
exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1540
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f9e0d9aa6ed
RSP: 002b:00007f9e0c943000 EFLAGS: 00010246
RAX: 00007f9e0c943020 RBX: 00007f9e0db02028 RCX: 00007f9e0c943000
RDX: 00007f9e0da47d7a RSI: 0000000000000080 RDI: 00007f9e0c9430f0
RBP: 00007f9e0c9430f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000005b948 R12: 0000000000000000
R13: 00007fff98736acf R14: 00007f9e0c943300 R15: 0000000000022000
INFO: task syz-executor.1:13501 blocked for more than 144 seconds.
Not tainted 5.16.0-rc4-next-20211208-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29584 pid:13501 ppid: 3782 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4d90 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032
__down_read_common kernel/locking/rwsem.c:1214 [inline]
__down_read kernel/locking/rwsem.c:1223 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1463
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348
handle_page_fault arch/x86/mm/fault.c:1484 [inline]
exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1540
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f9e0d9aa6ed
RSP: 002b:00007f9e0c943000 EFLAGS: 00010246
RAX: 00007f9e0c943020 RBX: 00007f9e0db02028 RCX: 00007f9e0c943000
RDX: 00007f9e0da47d7a RSI: 0000000000000080 RDI: 00007f9e0c9430f0
RBP: 00007f9e0c9430f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000005b948 R12: 0000000000000000
R13: 00007fff98736acf R14: 00007f9e0c943300 R15: 0000000000022000
INFO: task syz-executor.1:13502 can't die for more than 144 seconds.
task:syz-executor.1 state:D stack:29584 pid:13502 ppid: 3782 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4d90 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032
__down_read_common kernel/locking/rwsem.c:1214 [inline]
__down_read kernel/locking/rwsem.c:1223 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1463
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348
handle_page_fault arch/x86/mm/fault.c:1484 [inline]
exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1540
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f9e0d98dba3
RSP: 002b:00007f9e0c922178 EFLAGS: 00010212
RAX: 00007f9e0d98db80 RBX: 00007f9e0db020f0 RCX: 0000000000000000
RDX: 0000000020000180 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f9e0da48ff7 R08: 0000000020000180 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000005b948 R12: 0000000000000000
R13: 00007fff98736acf R14: 00007f9e0c922300 R15: 0000000000022000
INFO: task syz-executor.1:13502 blocked for more than 144 seconds.
Not tainted 5.16.0-rc4-next-20211208-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29584 pid:13502 ppid: 3782 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4d90 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032
__down_read_common kernel/locking/rwsem.c:1214 [inline]
__down_read kernel/locking/rwsem.c:1223 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1463
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348
handle_page_fault arch/x86/mm/fault.c:1484 [inline]
exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1540
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f9e0d98dba3
RSP: 002b:00007f9e0c922178 EFLAGS: 00010212
RAX: 00007f9e0d98db80 RBX: 00007f9e0db020f0 RCX: 0000000000000000
RDX: 0000000020000180 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f9e0da48ff7 R08: 0000000020000180 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000005b948 R12: 0000000000000000
R13: 00007fff98736acf R14: 00007f9e0c922300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb828a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
3 locks held by kworker/u4:3/54:
1 lock held by in:imklog/6232:
2 locks held by agetty/6240:
#0: ffff88801c232098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900029f82e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
2 locks held by agetty/22489:
#0: ffff88801c234098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900036fb2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
1 lock held by syz-executor.1/13474:
1 lock held by syz-executor.1/13480:
#0: ffff888010e7f128 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff888010e7f128 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff888010e7f128 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0xa0a/0x2c20 kernel/exit.c:819
1 lock held by syz-executor.1/13501:
#0: ffff888010e7f128 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff888010e7f128 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348
1 lock held by syz-executor.1/13502:
#0: ffff888010e7f128 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff888010e7f128 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348
1 lock held by vivid-002-sdr-c/13500:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc4-next-20211208-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:256 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:413
kthread+0x405/0x4f0 kernel/kthread.c:345
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 13500 Comm: vivid-002-sdr-c Not tainted 5.16.0-rc4-next-20211208-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:lockdep_recursion_finish kernel/locking/lockdep.c:438 [inline]
RIP: 0010:lock_is_held_type+0xe4/0x140 kernel/locking/lockdep.c:5683
Code: f6 47 22 03 0f 95 c0 45 31 ed 44 39 f0 41 0f 94 c5 48 c7 c7 80 00 ac 89 e8 a9 0d 00 00 b8 ff ff ff ff 65 0f c1 05 6c c6 ae 76 <83> f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01
RSP: 0018:ffffc90004e1fca0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffff8880b9d39cd8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff83e4b17d R11: 0000000000000000 R12: ffff88801bbbba80
R13: 0000000000000001 R14: 00000000ffffffff R15: ffff88801bbbc4e8
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c014a28a40 CR3: 0000000070b41000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 00000000b8fecd19 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
lockdep_assert_rq_held kernel/sched/sched.h:1309 [inline]
update_rq_clock+0x93/0x5e0 kernel/sched/core.c:683
__schedule+0x2d4/0x4d90 kernel/sched/core.c:6215
schedule+0xd2/0x260 kernel/sched/core.c:6369
vivid_thread_sdr_cap+0x934/0xdc0 drivers/media/test-drivers/vivid/vivid-sdr-cap.c:206
kthread+0x405/0x4f0 kernel/kthread.c:345
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: f6 47 22 03 testb $0x3,0x22(%rdi)
4: 0f 95 c0 setne %al
7: 45 31 ed xor %r13d,%r13d
a: 44 39 f0 cmp %r14d,%eax
d: 41 0f 94 c5 sete %r13b
11: 48 c7 c7 80 00 ac 89 mov $0xffffffff89ac0080,%rdi
18: e8 a9 0d 00 00 callq 0xdc6
1d: b8 ff ff ff ff mov $0xffffffff,%eax
22: 65 0f c1 05 6c c6 ae xadd %eax,%gs:0x76aec66c(%rip) # 0x76aec696
29: 76
* 2a: 83 f8 01 cmp $0x1,%eax <-- trapping instruction
2d: 75 29 jne 0x58
2f: 9c pushfq
30: 58 pop %rax
31: f6 c4 02 test $0x2,%ah
34: 75 3d jne 0x73
36: 48 f7 04 24 00 02 00 testq $0x200,(%rsp)
3d: 00
3e: 74 01 je 0x41