rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (10460 ticks this GP) idle=bda/1/0x4000000000000000 softirq=209830/209831 fqs=0
(t=10500 jiffies g=386373 q=319)
rcu: rcu_preempt kthread starved for 10500 jiffies! g386373 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28864 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4681 [inline]
__schedule+0x93a/0x26f0 kernel/sched/core.c:5938
schedule+0xd3/0x270 kernel/sched/core.c:6017
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop kernel/rcu/tree.c:1996 [inline]
rcu_gp_kthread+0xd34/0x1980 kernel/rcu/tree.c:2169
kthread+0x3e5/0x4d0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22617 Comm: syz-executor.4 Not tainted 5.14.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__perf_output_begin kernel/events/ring_buffer.c:167 [inline]
RIP: 0010:perf_output_begin_forward+0xeb/0xae0 kernel/events/ring_buffer.c:268
Code: 84 ed 58 0f 84 b2 06 00 00 e8 21 c1 de ff 48 8d bb e8 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 10 09 00 00 48 8b 83 e8 02 00 00 48 85 c0 48 0f 45 d8 48 89
RSP: 0018:ffffc90000dc0320 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff88808ae928b0 RCX: 0000000000000100
RDX: 1ffff110115d2573 RSI: ffffffff8196e7cf RDI: ffff88808ae92b98
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8196e7c0 R11: 0000000000000000 R12: ffffc90000dc05c0
R13: ffff88808ae928b0 R14: ffffc90000dc0988 R15: 0000000000000008
FS: 00007efdcb5fe700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efdcb5fdf78 CR3: 000000009aaaf000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__perf_event_output kernel/events/core.c:7450 [inline]
perf_event_output_forward+0xf2/0x280 kernel/events/core.c:7468
__perf_event_overflow+0x13c/0x3d0 kernel/events/core.c:9140
perf_swevent_hrtimer+0x37c/0x3f0 kernel/events/core.c:10540
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601
hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3ba/0xb40 kernel/locking/qspinlock.c:508
Code: eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 <41> 83 ec 01 0f 84 72 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f
RSP: 0018:ffffc90000dc0a30 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff18efc7c
RDX: 0000000000000001 RSI: dffffc0000000000 RDI: ffffffff8c77e3e2
RBP: ffffffff8c77e3e0 R08: 0000000000000001 R09: ffffffff8c77e3e3
R10: fffffbfff18efc7c R11: 0000000000000080 R12: 0000000000003d28
R13: fffffbfff18efc7c R14: 0000000000000001 R15: ffff8880b9d52900
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:113
spin_lock include/linux/spinlock.h:354 [inline]
mac80211_hwsim_tx_frame_no_nl.isra.0+0x68f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1516
mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784
mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838
__iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197
Code: 01 f0 4d 89 03 e9 63 fd ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 00 <65> 8b 05 09 47 8c 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90002ecf740 EFLAGS: 00000216
RAX: 0000000000005883 RBX: 0000000000000000 RCX: ffffc900024b2000
RDX: 0000000000040000 RSI: ffffffff815d5343 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fcd58e7
R10: ffffffff815d5339 R11: 0000000000000000 R12: ffffffff84c53da0
R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc90002ecf7a0
console_unlock+0x7c9/0xc40 kernel/printk/printk.c:2653
vprintk_emit+0x1ca/0x560 kernel/printk/printk.c:2174
vprintk+0x8d/0x260 kernel/printk/printk_safe.c:392
printk+0xba/0xed kernel/printk/printk.c:2216
fail_dump lib/fault-inject.c:45 [inline]
should_fail+0x472/0x5a0 lib/fault-inject.c:146
_copy_from_user+0x2c/0x180 lib/usercopy.c:14
copy_from_user include/linux/uaccess.h:192 [inline]
move_addr_to_kernel.part.0+0x31/0x110 net/socket.c:247
move_addr_to_kernel net/socket.c:245 [inline]
__copy_msghdr_from_user+0x3da/0x4b0 net/socket.c:2299
copy_msghdr_from_user net/socket.c:2327 [inline]
sendmsg_copy_msghdr+0xa1/0x160 net/socket.c:2425
___sys_sendmsg+0xc6/0x170 net/socket.c:2444
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2477
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: 0033:0x4665f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007efdcb5fe188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 000000000000e869 RSI: 0000000020000440 RDI: 0000000000000003
RBP: 00007efdcb5fe1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe40e74c1f R14: 00007efdcb5fe300 R15: 0000000000022000
NMI backtrace for cpu 0
CPU: 0 PID: 22619 Comm: syz-executor.1 Not tainted 5.14.0-rc7-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:105
nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:342
print_cpu_stall kernel/rcu/tree_stall.h:625 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:700 [inline]
rcu_pending kernel/rcu/tree.c:3922 [inline]
rcu_sched_clock_irq.cold+0x9f/0x747 kernel/rcu/tree.c:2641
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601
hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x77b/0x1330 drivers/net/wireless/mac80211_hwsim.c:1527
Code: 00 00 00 c6 84 24 98 00 00 00 00 74 bb e8 6d 2e 43 fc 48 8d bb ac 3c 00 00 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 <38> d0 7f 08 84 c0 0f 85 36 09 00 00 44 0f b6 bb ac 3c 00 00 31 ff
RSP: 0018:ffffc90000007ba0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff888078d9b2a0 RCX: 0000000000000100
RDX: 0000000000000004 RSI: ffffffff85327a83 RDI: ffff888078d9ef4c
RBP: dffffc0000000000 R08: 0000000000000009 R09: 0000000000000000
R10: ffffffff85327ab9 R11: 0000000000000000 R12: ffff8880a1b50dc0
R13: ffff8880869e34d0 R14: ffff8880869e32a0 R15: 0000000000000000
mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784
mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838
__iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_schedule_irq+0x49/0x90 kernel/sched/core.c:6326
Code: 55 53 65 48 8b 1c 25 40 f0 01 00 48 89 dd 48 c1 ed 03 48 01 c5 bf 01 00 00 00 e8 02 80 23 f8 e8 1d cc 4f f8 fb bf 01 00 00 00 d2 cd ff ff 9c 58 fa f6 c4 02 75 27 bf 01 00 00 00 e8 10 6f 23
RSP: 0018:ffffc90002edf278 EFLAGS: 00000202
RAX: 0000000000000b6d RBX: ffff888077520000 RCX: 1ffffffff1fa37a2
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffed100eea4000 R08: 0000000000000001 R09: ffffffff8fcd599f
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
irqentry_exit+0x31/0x80 kernel/entry/common.c:427
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5593
Code: d0 a6 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90002edf348 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920005dbe6b RCX: a2326fe9749fb172
RDX: 1ffff1100eea413d RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fcd58e7
R10: fffffbfff1f9ab1c R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: ffffffff8b97c280 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:267 [inline]
rcu_read_lock include/linux/rcupdate.h:687 [inline]
unlocked_inode_to_wb_begin include/linux/backing-dev.h:309 [inline]
clear_page_dirty_for_io+0x367/0xa40 mm/page-writeback.c:2720
mpage_submit_page+0x80/0x2a0 fs/ext4/inode.c:2080
mpage_map_and_submit_buffers fs/ext4/inode.c:2348 [inline]
mpage_map_and_submit_extent fs/ext4/inode.c:2487 [inline]
ext4_writepages+0x247f/0x3ba0 fs/ext4/inode.c:2800
do_writepages+0xec/0x290 mm/page-writeback.c:2355
__filemap_fdatawrite_range+0x2a5/0x390 mm/filemap.c:413
filemap_write_and_wait_range mm/filemap.c:686 [inline]
filemap_write_and_wait_range+0x65/0x100 mm/filemap.c:680
ext4_punch_hole+0x1f4/0x1110 fs/ext4/inode.c:4020
ext4_fallocate+0x1175/0x3ff0 fs/ext4/extents.c:4662
vfs_fallocate+0x48d/0xd80 fs/open.c:311
ioctl_preallocate+0x18e/0x200 fs/ioctl.c:497
file_ioctl fs/ioctl.c:540 [inline]
do_vfs_ioctl+0x112a/0x15d0 fs/ioctl.c:1048
__do_sys_ioctl fs/ioctl.c:1067 [inline]
__se_sys_ioctl fs/ioctl.c:1055 [inline]
__x64_sys_ioctl+0x108/0x200 fs/ioctl.c:1055
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: 0033:0x4665f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0c22874188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9
RDX: 0000000020000040 RSI: 0000000040305829 RDI: 0000000000000004
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007ffe1160b5bf R14: 00007f0c22874300 R15: 0000000000022000
watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [syz-executor.1:22619]
Modules linked in:
irq event stamp: 23840297
hardirqs last enabled at (23840296): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
hardirqs last disabled at (23840297): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1100
softirqs last enabled at (19850832): [] invoke_softirq kernel/softirq.c:432 [inline]
softirqs last enabled at (19850832): [] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
softirqs last disabled at (19850835): [] invoke_softirq kernel/softirq.c:432 [inline]
softirqs last disabled at (19850835): [] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
CPU: 0 PID: 22619 Comm: syz-executor.1 Not tainted 5.14.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:_compound_head include/linux/page-flags.h:188 [inline]
RIP: 0010:virt_to_head_page include/linux/mm.h:901 [inline]
RIP: 0010:__ksize+0x2f/0x110 mm/slub.c:4241
Code: 84 8d 00 00 00 48 83 ec 08 e8 2d 61 79 ff 48 c1 e8 0c 48 89 c7 48 b8 00 00 00 00 00 ea ff ff 48 c1 e7 06 48 01 c7 48 8b 47 08 <48> 8d 50 ff a8 01 48 0f 45 fa 48 8b 57 08 48 8d 42 ff 83 e2 01 48
RSP: 0018:ffffc90000007af8 EFLAGS: 00000282
RAX: ffffea0002983101 RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff888077520000 RSI: ffffffff81347ed4 RDI: ffffea0002983140
RBP: ffff8880a60c5400 R08: 0000000000000000 R09: 000000000000002e
R10: ffffffff81347eca R11: 000000000000003f R12: 0000000000000000
R13: ffff8880a60c5400 R14: 00000000ffffffff R15: 0000000000000a20
FS: 00007f0c22874700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f39bc577ef0 CR3: 000000008bb73000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
ksize mm/slab_common.c:1306 [inline]
ksize+0x4e/0x60 mm/slab_common.c:1284
__alloc_skb+0xf7/0x340 net/core/skbuff.c:433
skb_copy+0x137/0x2f0 net/core/skbuff.c:1581
mac80211_hwsim_tx_frame_no_nl.isra.0+0xb17/0x1330 drivers/net/wireless/mac80211_hwsim.c:1565
mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784
mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838
__iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_schedule_irq+0x49/0x90 kernel/sched/core.c:6326
Code: 55 53 65 48 8b 1c 25 40 f0 01 00 48 89 dd 48 c1 ed 03 48 01 c5 bf 01 00 00 00 e8 02 80 23 f8 e8 1d cc 4f f8 fb bf 01 00 00 00 d2 cd ff ff 9c 58 fa f6 c4 02 75 27 bf 01 00 00 00 e8 10 6f 23
RSP: 0018:ffffc90002edf278 EFLAGS: 00000202
RAX: 0000000000000b6d RBX: ffff888077520000 RCX: 1ffffffff1fa37a2
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffed100eea4000 R08: 0000000000000001 R09: ffffffff8fcd599f
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
irqentry_exit+0x31/0x80 kernel/entry/common.c:427
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5593
Code: d0 a6 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90002edf348 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920005dbe6b RCX: a2326fe9749fb172
RDX: 1ffff1100eea413d RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fcd58e7
R10: fffffbfff1f9ab1c R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: ffffffff8b97c280 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:267 [inline]
rcu_read_lock include/linux/rcupdate.h:687 [inline]
unlocked_inode_to_wb_begin include/linux/backing-dev.h:309 [inline]
clear_page_dirty_for_io+0x367/0xa40 mm/page-writeback.c:2720
mpage_submit_page+0x80/0x2a0 fs/ext4/inode.c:2080
mpage_map_and_submit_buffers fs/ext4/inode.c:2348 [inline]
mpage_map_and_submit_extent fs/ext4/inode.c:2487 [inline]
ext4_writepages+0x247f/0x3ba0 fs/ext4/inode.c:2800
do_writepages+0xec/0x290 mm/page-writeback.c:2355
__filemap_fdatawrite_range+0x2a5/0x390 mm/filemap.c:413
filemap_write_and_wait_range mm/filemap.c:686 [inline]
filemap_write_and_wait_range+0x65/0x100 mm/filemap.c:680
ext4_punch_hole+0x1f4/0x1110 fs/ext4/inode.c:4020
ext4_fallocate+0x1175/0x3ff0 fs/ext4/extents.c:4662
vfs_fallocate+0x48d/0xd80 fs/open.c:311
ioctl_preallocate+0x18e/0x200 fs/ioctl.c:497
file_ioctl fs/ioctl.c:540 [inline]
do_vfs_ioctl+0x112a/0x15d0 fs/ioctl.c:1048
__do_sys_ioctl fs/ioctl.c:1067 [inline]
__se_sys_ioctl fs/ioctl.c:1055 [inline]
__x64_sys_ioctl+0x108/0x200 fs/ioctl.c:1055
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: 0033:0x4665f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0c22874188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9
RDX: 0000000020000040 RSI: 0000000040305829 RDI: 0000000000000004
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007ffe1160b5bf R14: 00007f0c22874300 R15: 0000000000022000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22617 Comm: syz-executor.4 Not tainted 5.14.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mark_lock+0x124/0x17b0 kernel/locking/lockdep.c:4571
Code: 01 00 00 4b 8d 04 76 48 c1 e0 06 48 05 00 5d cd 8f 48 8d 78 50 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 11 00 <0f> 85 15 12 00 00 48 89 ee 48 23 70 50 41 ba 01 00 00 00 0f 84 79
RSP: 0018:ffffc90000dc07c8 EFLAGS: 00000046
RAX: ffffffff8fcfb680 RBX: 1ffff920001b8100 RCX: 1ffffffff1f9f6da
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8fcfb6d0
RBP: 0000000000000004 R08: 0000000000000000 R09: ffffffff8fcd5947
R10: fffffbfff1f9ab28 R11: 0000000000000001 R12: 0000000000000002
R13: ffff888077525f00 R14: 0000000000000322 R15: ffff888077525f20
FS: 00007efdcb5fe700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efdcb5fdf78 CR3: 000000009aaaf000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4194
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4212 [inline]
lockdep_hardirqs_on_prepare kernel/locking/lockdep.c:4280 [inline]
lockdep_hardirqs_on_prepare+0x135/0x400 kernel/locking/lockdep.c:4232
trace_hardirqs_on+0x5b/0x1c0 kernel/trace/trace_preemptirq.c:49
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline]
RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline]
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:437 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3b8/0xb40 kernel/locking/qspinlock.c:508
Code: 48 89 eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c 90 41 83 ec 01 0f 84 72 04 00 00 41 0f b6 45 00 38 d8 7f 08 84
RSP: 0018:ffffc90000dc0a30 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff18efc7c
RDX: 0000000000000001 RSI: dffffc0000000000 RDI: ffffffff8c77e3e2
RBP: ffffffff8c77e3e0 R08: 0000000000000001 R09: ffffffff8c77e3e3
R10: fffffbfff18efc7c R11: 0000000000000080 R12: 0000000000003e04
R13: fffffbfff18efc7c R14: 0000000000000001 R15: ffff8880b9d52900
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:113
spin_lock include/linux/spinlock.h:354 [inline]
mac80211_hwsim_tx_frame_no_nl.isra.0+0x68f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1516
mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784
mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838
__iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197
Code: 01 f0 4d 89 03 e9 63 fd ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 00 <65> 8b 05 09 47 8c 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90002ecf740 EFLAGS: 00000216
RAX: 0000000000005883 RBX: 0000000000000000 RCX: ffffc900024b2000
RDX: 0000000000040000 RSI: ffffffff815d5343 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fcd58e7
R10: ffffffff815d5339 R11: 0000000000000000 R12: ffffffff84c53da0
R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc90002ecf7a0
console_unlock+0x7c9/0xc40 kernel/printk/printk.c:2653
vprintk_emit+0x1ca/0x560 kernel/printk/printk.c:2174
vprintk+0x8d/0x260 kernel/printk/printk_safe.c:392
printk+0xba/0xed kernel/printk/printk.c:2216
fail_dump lib/fault-inject.c:45 [inline]
should_fail+0x472/0x5a0 lib/fault-inject.c:146
_copy_from_user+0x2c/0x180 lib/usercopy.c:14
copy_from_user include/linux/uaccess.h:192 [inline]
move_addr_to_kernel.part.0+0x31/0x110 net/socket.c:247
move_addr_to_kernel net/socket.c:245 [inline]
__copy_msghdr_from_user+0x3da/0x4b0 net/socket.c:2299
copy_msghdr_from_user net/socket.c:2327 [inline]
sendmsg_copy_msghdr+0xa1/0x160 net/socket.c:2425
___sys_sendmsg+0xc6/0x170 net/socket.c:2444
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2477
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: 0033:0x4665f9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007efdcb5fe188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 000000000000e869 RSI: 0000000020000440 RDI: 0000000000000003
RBP: 00007efdcb5fe1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe40e74c1f R14: 00007efdcb5fe300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 84 ed test %ch,%ch
2: 58 pop %rax
3: 0f 84 b2 06 00 00 je 0x6bb
9: e8 21 c1 de ff callq 0xffdec12f
e: 48 8d bb e8 02 00 00 lea 0x2e8(%rbx),%rdi
15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1c: fc ff df
1f: 48 89 fa mov %rdi,%rdx
22: 48 c1 ea 03 shr $0x3,%rdx
26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
* 2a: 0f 85 10 09 00 00 jne 0x940 <-- trapping instruction
30: 48 8b 83 e8 02 00 00 mov 0x2e8(%rbx),%rax
37: 48 85 c0 test %rax,%rax
3a: 48 0f 45 d8 cmovne %rax,%rbx
3e: 48 rex.W
3f: 89 .byte 0x89