./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3363331195 <...> Warning: Permanently added '10.128.1.122' (ED25519) to the list of known hosts. execve("./syz-executor3363331195", ["./syz-executor3363331195"], 0x7ffd4e372080 /* 10 vars */) = 0 brk(NULL) = 0x55556c752000 brk(0x55556c752d40) = 0x55556c752d40 arch_prctl(ARCH_SET_FS, 0x55556c7523c0) = 0 set_tid_address(0x55556c752690) = 5069 set_robust_list(0x55556c7526a0, 24) = 0 rseq(0x55556c752ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3363331195", 4096) = 28 getrandom("\x45\x91\x02\x00\x29\xcb\xf8\x7d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556c752d40 brk(0x55556c773d40) = 0x55556c773d40 brk(0x55556c774000) = 0x55556c774000 mprotect(0x7f8d04be6000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556c752690) = 5070 ./strace-static-x86_64: Process 5070 attached [pid 5070] set_robust_list(0x55556c7526a0, 24) = 0 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5070] setpgid(0, 0) = 0 [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1000", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] futex(0x7f8d04bec34c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] rt_sigaction(SIGRT_1, {sa_handler=0x7f8d04b88720, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f8d04b79da0}, NULL, 8) = 0 [pid 5070] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8d04afd000 [pid 5070] mprotect(0x7f8d04afe000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f8d04b1d990, parent_tid=0x7f8d04b1d990, exit_signal=0, stack=0x7f8d04afd000, stack_size=0x20300, tls=0x7f8d04b1d6c0}./strace-static-x86_64: Process 5071 attached => {parent_tid=[5071]}, 88) = 5071 [pid 5071] rseq(0x7f8d04b1dfe0, 0x20, 0, 0x53053053) = 0 [pid 5070] rt_sigprocmask(SIG_SETMASK, [], [pid 5071] set_robust_list(0x7f8d04b1d9a0, 24 [pid 5070] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5071] <... set_robust_list resumed>) = 0 [pid 5071] rt_sigprocmask(SIG_SETMASK, [], [pid 5070] futex(0x7f8d04bec348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5070] <... futex resumed>) = 0 [pid 5071] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5070] futex(0x7f8d04bec34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... bpf resumed>) = 3 [pid 5071] futex(0x7f8d04bec34c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5070] <... futex resumed>) = 0 [pid 5071] futex(0x7f8d04bec348, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5070] futex(0x7f8d04bec348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5070] <... futex resumed>) = 0 [pid 5071] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5070] futex(0x7f8d04bec34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... socketpair resumed>[4, 5]) = 0 [pid 5071] futex(0x7f8d04bec34c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5070] <... futex resumed>) = 0 [pid 5071] futex(0x7f8d04bec348, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5070] futex(0x7f8d04bec348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] recvmsg(5, [pid 5070] <... futex resumed>) = 0 [pid 5070] futex(0x7f8d04bec34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5070] futex(0x7f8d04bec34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5070] futex(0x7f8d04bec35c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8d04adc000 [pid 5070] mprotect(0x7f8d04add000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f8d04afc990, parent_tid=0x7f8d04afc990, exit_signal=0, stack=0x7f8d04adc000, stack_size=0x20300, tls=0x7f8d04afc6c0}./strace-static-x86_64: Process 5072 attached => {parent_tid=[5072]}, 88) = 5072 [pid 5072] rseq(0x7f8d04afcfe0, 0x20, 0, 0x53053053) = 0 [pid 5070] rt_sigprocmask(SIG_SETMASK, [], [pid 5072] set_robust_list(0x7f8d04afc9a0, 24 [pid 5070] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5072] <... set_robust_list resumed>) = 0 [pid 5070] futex(0x7f8d04bec358, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] rt_sigprocmask(SIG_SETMASK, [], [pid 5070] <... futex resumed>) = 0 [pid 5072] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5070] futex(0x7f8d04bec35c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 6 [pid 5072] futex(0x7f8d04bec35c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5072] futex(0x7f8d04bec358, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5070] <... futex resumed>) = 0 [pid 5070] futex(0x7f8d04bec358, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = 0 [pid 5072] sendmsg(5, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xaf\x41\x58\x18\xf0\xf6\xc5\x80\xe6\xe9\x76\x09\x97\x88\x3e\x48\xb6\xc8\x0f\x20\xaa\xbb\xe4\x88\xa2\xb1\x86\xd9\xd8\xc8\xcc\xf9\x3e\x60\xcd\xeb\x9f\xdf\x99\xeb\x99\xa2\x57\x7e\x97\x4a\x48\xea\xfe\x67\xfb\x97\xca\xcd\xc1\x67\xf0\xd3\x6f\x12\xf0\xbd\xf1\xf3\xcb\x05\x6d\x86\xdd\x86\x8b\x68\xfc\x71\x99\x0e\x0b\x19\xdf\x6e\xaf\x66\x40\x15\xa1\x75\x7e\xa6\x27\x1e\xdc\xa7\xa1\x48\xac\xba\xa4\xbb\x6e\x79"..., iov_len=222}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}], msg_iovlen=7, msg_control=[{cmsg_len=44, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[6, 3, 4, 6, 6, 5, 6]}], msg_controllen=48, msg_flags=MSG_MORE}, MSG_OOB|MSG_PROBE|MSG_DONTWAIT|MSG_MORE [pid 5070] <... futex resumed>) = 1 [pid 5070] futex(0x7f8d04bec35c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] <... sendmsg resumed>) = 222 [pid 5072] futex(0x7f8d04bec35c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... futex resumed>) = 0 [pid 5070] futex(0x7f8d04bec358, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] futex(0x7f8d04bec35c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] <... futex resumed>) = 1 [pid 5072] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x1c", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[0]}], msg_controllen=24, msg_flags=0}, MSG_OOB|MSG_DONTWAIT) = 1 [pid 5072] futex(0x7f8d04bec35c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5072] futex(0x7f8d04bec358, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5070] <... futex resumed>) = 0 [pid 5070] exit_group(0 [pid 5072] <... futex resumed>) = ? [pid 5070] <... exit_group resumed>) = ? [pid 5072] +++ exited with 0 +++ [pid 5071] <... recvmsg resumed> ) = ? [pid 5071] +++ exited with 0 +++ [pid 5070] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5073 attached , child_tidptr=0x55556c752690) = 5073 [pid 5073] set_robust_list(0x55556c7526a0, 24) = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] setpgid(0, 0) = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1000", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] futex(0x7f8d04bec34c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] rt_sigaction(SIGRT_1, {sa_handler=0x7f8d04b88720, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f8d04b79da0}, NULL, 8) = 0 [pid 5073] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8d04afd000 [pid 5073] mprotect(0x7f8d04afe000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5073] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5073] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f8d04b1d990, parent_tid=0x7f8d04b1d990, exit_signal=0, stack=0x7f8d04afd000, stack_size=0x20300, tls=0x7f8d04b1d6c0}./strace-static-x86_64: Process 5074 attached [pid 5074] rseq(0x7f8d04b1dfe0, 0x20, 0, 0x53053053) = 0 [pid 5074] set_robust_list(0x7f8d04b1d9a0, 24 [pid 5073] <... clone3 resumed> => {parent_tid=[5074]}, 88) = 5074 [pid 5073] rt_sigprocmask(SIG_SETMASK, [], [pid 5074] <... set_robust_list resumed>) = 0 [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5074] futex(0x7f8d04bec348, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] futex(0x7f8d04bec348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5073] <... futex resumed>) = 1 [pid 5073] futex(0x7f8d04bec34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5074] futex(0x7f8d04bec34c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... futex resumed>) = 0 [pid 5074] <... futex resumed>) = 1 [pid 5074] futex(0x7f8d04bec348, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5073] futex(0x7f8d04bec348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5073] <... futex resumed>) = 1 [pid 5074] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5073] futex(0x7f8d04bec34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... socketpair resumed>[4, 5]) = 0 [pid 5074] futex(0x7f8d04bec34c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5074] recvmsg(5, [pid 5073] futex(0x7f8d04bec348, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 74.301196][ T10] [ 74.303601][ T10] ============================================ [ 74.309774][ T10] WARNING: possible recursive locking detected [ 74.316739][ T10] 6.8.0-syzkaller-05236-g443574b03387 #0 Not tainted [ 74.323444][ T10] -------------------------------------------- [ 74.329604][ T10] kworker/u8:0/10 is trying to acquire lock: [ 74.335685][ T10] ffffffff8f48b798 (unix_gc_lock){+.+.}-{2:2}, at: unix_notinflight+0x204/0x390 [ 74.344794][ T10] [pid 5073] futex(0x7f8d04bec34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5073] futex(0x7f8d04bec35c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8d04adc000 [pid 5073] mprotect(0x7f8d04add000, 131072, PROT_READ|PROT_WRITE) = 0 [ 74.344794][ T10] but task is already holding lock: [ 74.352203][ T10] ffffffff8f48b798 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf10 [ 74.360739][ T10] [ 74.360739][ T10] other info that might help us debug this: [ 74.368810][ T10] Possible unsafe locking scenario: [ 74.368810][ T10] [ 74.376322][ T10] CPU0 [ 74.379626][ T10] ---- [ 74.382956][ T10] lock(unix_gc_lock); [ 74.387134][ T10] lock(unix_gc_lock); [ 74.391438][ T10] [ 74.391438][ T10] *** DEADLOCK *** [ 74.391438][ T10] [pid 5073] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5073] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f8d04afc990, parent_tid=0x7f8d04afc990, exit_signal=0, stack=0x7f8d04adc000, stack_size=0x20300, tls=0x7f8d04afc6c0}./strace-static-x86_64: Process 5075 attached => {parent_tid=[5075]}, 88) = 5075 [pid 5075] rseq(0x7f8d04afcfe0, 0x20, 0, 0x53053053) = 0 [pid 5073] rt_sigprocmask(SIG_SETMASK, [], [pid 5075] set_robust_list(0x7f8d04afc9a0, 24) = 0 [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5075] rt_sigprocmask(SIG_SETMASK, [], [pid 5073] futex(0x7f8d04bec358, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5075] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5073] <... futex resumed>) = 0 [pid 5075] <... bpf resumed>) = 6 [pid 5073] futex(0x7f8d04bec35c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] futex(0x7f8d04bec35c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... futex resumed>) = 0 [pid 5073] futex(0x7f8d04bec358, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] futex(0x7f8d04bec35c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 1 [ 74.399643][ T10] May be due to missing lock nesting notation [ 74.399643][ T10] [ 74.407988][ T10] 3 locks held by kworker/u8:0/10: [ 74.413117][ T10] #0: ffff888014c81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 [ 74.424897][ T10] #1: ffffc900000f7d00 (unix_gc_work){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x1770 [ 74.435140][ T10] #2: ffffffff8f48b798 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf10 [ 74.444098][ T10] [ 74.444098][ T10] stack backtrace: [ 74.449990][ T10] CPU: 1 PID: 10 Comm: kworker/u8:0 Not tainted 6.8.0-syzkaller-05236-g443574b03387 #0 [ 74.459717][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 74.469883][ T10] Workqueue: events_unbound __unix_gc [ 74.475362][ T10] Call Trace: [ 74.478669][ T10] [ 74.481636][ T10] dump_stack_lvl+0x1e7/0x2e0 [ 74.486331][ T10] ? __pfx_dump_stack_lvl+0x10/0x10 [ 74.491565][ T10] ? print_deadlock_bug+0x479/0x620 [ 74.496788][ T10] ? _find_first_zero_bit+0xd4/0x100 [ 74.502096][ T10] validate_chain+0x15c1/0x58e0 [ 74.506987][ T10] ? lockdep_unlock+0x16a/0x300 [ 74.511864][ T10] ? __pfx_validate_chain+0x10/0x10 [ 74.517102][ T10] ? add_lock_to_list+0x1de/0x2e0 [ 74.522176][ T10] ? validate_chain+0x15a2/0x58e0 [ 74.527232][ T10] ? mark_lock+0x9a/0x350 [ 74.531587][ T10] __lock_acquire+0x1346/0x1fd0 [ 74.536450][ T10] lock_acquire+0x1e4/0x530 [ 74.540988][ T10] ? unix_notinflight+0x204/0x390 [ 74.546049][ T10] ? __pfx_lock_acquire+0x10/0x10 [ 74.551087][ T10] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 74.556507][ T10] ? scan_children+0x2ce/0x480 [ 74.561276][ T10] _raw_spin_lock+0x2e/0x40 [ 74.565782][ T10] ? unix_notinflight+0x204/0x390 [ 74.570916][ T10] unix_notinflight+0x204/0x390 [ 74.575795][ T10] unix_destruct_scm+0x221/0x350 [ 74.580849][ T10] ? __pfx_unix_destruct_scm+0x10/0x10 [ 74.586329][ T10] ? scan_children+0x2ce/0x480 [ 74.591103][ T10] ? __lock_acquire+0x1346/0x1fd0 [ 74.596150][ T10] ? __pfx_inc_inflight+0x10/0x10 [ 74.601423][ T10] skb_release_head_state+0x100/0x250 [ 74.606835][ T10] ? __unix_gc+0xaf3/0xf10 [ 74.611294][ T10] kfree_skb_reason+0x15d/0x390 [ 74.616182][ T10] __unix_gc+0xaf3/0xf10 [ 74.620456][ T10] ? __pfx___unix_gc+0x10/0x10 [ 74.625260][ T10] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 74.631614][ T10] ? process_scheduled_works+0x91b/0x1770 [ 74.637394][ T10] process_scheduled_works+0xa00/0x1770 [ 74.642959][ T10] ? __pfx_process_scheduled_works+0x10/0x10 [ 74.648941][ T10] ? assign_work+0x364/0x3d0 [ 74.653530][ T10] worker_thread+0x86d/0xd70 [ 74.658179][ T10] ? __kthread_parkme+0x169/0x1d0 [ 74.663254][ T10] ? __pfx_worker_thread+0x10/0x10 [ 74.668385][ T10] kthread+0x2f0/0x390 [ 74.672484][ T10] ? __pfx_worker_thread+0x10/0x10 [ 74.677633][ T10] ? __pfx_kthread+0x10/0x10 [ 74.682247][ T10] ret_from_fork+0x4b/0x80 [ 74.686685][ T10] ? __pfx_kthread+0x10/0x10 [ 74.691286][ T10] ret_from_fork_asm+0x1a/0x30 [ 74.696076][ T10]