INFO: task syz.8.61462:6363 blocked for more than 430 seconds.
Not tainted 6.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.61462 state:D stack:0 pid:6363 tgid:6361 ppid:8433 task_flags:0x400040 flags:0x00000001
Call trace:
[<81a3b2dc>] (__schedule) from [<81a3c270>] (__schedule_loop kernel/sched/core.c:7043 [inline])
[<81a3b2dc>] (__schedule) from [<81a3c270>] (schedule+0x2c/0x130 kernel/sched/core.c:7058)
r10:dfc9de64 r9:00000000 r8:84e826c0 r7:00000000 r6:84e827b4 r5:84e826c0
r4:8600e000
[<81a3c244>] (schedule) from [<8154acd0>] (__lock_sock+0x68/0xac net/core/sock.c:3170)
r5:84e826c0 r4:84e827ac
[<8154ac68>] (__lock_sock) from [<8154adf8>] (lock_sock_nested net/core/sock.c:3738 [inline])
[<8154ac68>] (__lock_sock) from [<8154adf8>] (lock_sock include/net/sock.h:1667 [inline])
[<8154ac68>] (__lock_sock) from [<8154adf8>] (sockopt_lock_sock net/core/sock.c:1146 [inline])
[<8154ac68>] (__lock_sock) from [<8154adf8>] (sockopt_lock_sock+0x54/0x58 net/core/sock.c:1137)
r6:00000000 r5:84e827ac r4:84e826c0
[<8154ada4>] (sockopt_lock_sock) from [<81734dc8>] (do_ip_getsockopt+0x238/0xa1c net/ipv4/ip_sockglue.c:1703)
r5:dfc9dd90 r4:00000010
[<81734b94>] (do_ip_getsockopt) from [<81735610>] (ip_getsockopt+0x64/0x134 net/ipv4/ip_sockglue.c:1765)
r10:00000127 r9:8600e000 r8:00000000 r7:20000c40 r6:00000000 r5:84e826c0
r4:00000010
[<817355ac>] (ip_getsockopt) from [<81745f9c>] (tcp_getsockopt+0x34/0x6c net/ipv4/tcp.c:4762)
r9:8600e000 r8:20000c40 r7:8154659c r6:85048780 r5:00000010 r4:817355ac
[<81745f68>] (tcp_getsockopt) from [<815465c4>] (sock_common_getsockopt+0x28/0x30 net/core/sock.c:3898)
r4:81745f68
[<8154659c>] (sock_common_getsockopt) from [<815434e4>] (do_sock_getsockopt+0x124/0x1ec net/socket.c:2405)
r4:00000000
[<815433c0>] (do_sock_getsockopt) from [<815453d0>] (__sys_getsockopt+0x94/0xdc net/socket.c:2434)
r8:85883f00 r7:dfc9df50 r6:00000010 r5:dfc9df58 r4:85883f01
[<8154533c>] (__sys_getsockopt) from [<81545434>] (__do_sys_getsockopt net/socket.c:2441 [inline])
[<8154533c>] (__sys_getsockopt) from [<81545434>] (sys_getsockopt+0x1c/0x24 net/socket.c:2438)
r8:8020029c r7:00000127 r6:002f63b0 r5:00000000 r4:20000c40
[<81545418>] (sys_getsockopt) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfc9dfa8 to 0xdfc9dff0)
dfa0: 20000c40 00000000 00000003 00000000 00000010 00000000
dfc0: 20000c40 00000000 002f63b0 00000127 002e0000 00000000 00006364 76fbd0bc
dfe0: 76fbcec0 76fbceb0 0001948c 001322c0
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted 6.17.0-rc1-syzkaller #0 PREEMPT
Hardware name: ARM-Versatile Express
Call trace:
[<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
r7:00000000 r6:00000113 r5:60000193 r4:822602a4
[<80201b08>] (show_stack) from [<8021fb90>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021fb90>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120)
[<8021fb20>] (dump_stack_lvl) from [<8021fbb4>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
r5:00000001 r4:00000001
[<8021fb9c>] (dump_stack) from [<81a24ef0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81a24d90>] (nmi_cpu_backtrace) from [<81a2503c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
r7:00000001 r6:8280c690 r5:8281ac94 r4:ffffffff
[<81a24f0c>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852)
r9:82abd564 r8:82804d40 r7:000e6dc0 r6:00007ef4 r5:8281b248 r4:8424940c
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037da20>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline])
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037da20>] (check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline])
[<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037da20>] (watchdog+0x4d4/0x81c kernel/hung_task.c:491)
[<8037d54c>] (watchdog) from [<80281fec>] (kthread+0x12c/0x280 kernel/kthread.c:463)
r10:00000000 r9:00000000 r8:8037d54c r7:830cf680 r6:830cf680 r5:83221800
r4:00000001
[<80281ec0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf8e1fb0 to 0xdf8e1ff8)
1fa0: 00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281ec0
r4:833a5e40
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 2843 Comm: pr/ttyAMA-1 Not tainted 6.17.0-rc1-syzkaller #0 PREEMPT
Hardware name: ARM-Versatile Express
PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194
LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
LR is at __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]
LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603
pc : [<81a454f8>] lr : [<80a79200>] psr: 60010013
sp : eb721eb0 ip : eb721ec0 fp : eb721ebc
r10: 82959154 r9 : 00000000 r8 : 00000000
r7 : 00000117 r6 : 829590b8 r5 : 00000000 r4 : 00000001
r3 : 00001c99 r2 : 00000000 r1 : 60010013 r0 : 83988040
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 30c5387d Table: 84930f40 DAC: fffffffd
Call trace:
[<81a454d0>] (_raw_spin_unlock_irqrestore) from [<80a79200>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline])
[<81a454d0>] (_raw_spin_unlock_irqrestore) from [<80a79200>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline])
[<81a454d0>] (_raw_spin_unlock_irqrestore) from [<80a79200>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603)
[<80a791e0>] (pl011_console_device_unlock) from [<802e4544>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1142)
[<802e44bc>] (nbcon_emit_one) from [<802e4764>] (nbcon_kthread_func+0x1a8/0x2a4 kernel/printk/nbcon.c:1229)
r6:8280c690 r5:84238c00 r4:829590b8
[<802e45bc>] (nbcon_kthread_func) from [<80281fec>] (kthread+0x12c/0x280 kernel/kthread.c:463)
r10:00000000 r9:829590b8 r8:802e45bc r7:84755a00 r6:84755a00 r5:84238c00
r4:00000001
[<80281ec0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeb721fb0 to 0xeb721ff8)
1fa0: 00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281ec0
r4:840c3540