ci-upstream-kasan-gce-root/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-kasan-gce-root/syz-executor2930530845 <...> Warning: Permanently added '10.128.1.92' (ED25519) to the list of known hosts. execve("ci-upstream-kasan-gce-root/syz-executor2930530845", ["ci-upstream-kasan-gce-root/syz-executor2930530845"], 0x7ffebc7c6f20 /* 10 vars */) = 0 brk(NULL) = 0x5555781b0000 brk(0x5555781b0d80) = 0x5555781b0d80 arch_prctl(ARCH_SET_FS, 0x5555781b0400) = 0 set_tid_address(0x5555781b06d0) = 5658 set_robust_list(0x5555781b06e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-kasan-gce-root/syz-executor2930530845", 4096) = 55 getrandom("\x78\x34\x3d\x34\x80\xa1\x02\x94", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555781b0d80 brk(0x5555781d1d80) = 0x5555781d1d80 brk(0x5555781d2000) = 0x5555781d2000 mprotect(0x7fd4de8af000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5659 attached , child_tidptr=0x5555781b06d0) = 5659 [pid 5659] set_robust_list(0x5555781b06e0, 24) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5658] rt_sigprocmask(SIG_SETMASK, [] [pid 5659] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5658] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5659] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5658] <... rt_sigprocmask resumed>, [], 8) = 0 ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5660 attached [pid 5658] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5660] set_robust_list(0x5555781b06e0, 24 [pid 5659] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5660 [pid 5660] <... set_robust_list resumed>) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] rt_sigprocmask(SIG_SETMASK, [] [pid 5659] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5661 attached [pid 5660] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5661 [pid 5661] set_robust_list(0x5555781b06e0, 24 [pid 5658] rt_sigprocmask(SIG_SETMASK, [] [pid 5661] <... set_robust_list resumed>) = 0 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5658] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] <... prctl resumed>) = 0 [pid 5658] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5658] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] setpgid(0, 0) = 0 ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5662 attached [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5658] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5662 [pid 5662] set_robust_list(0x5555781b06e0, 24 [pid 5658] rt_sigprocmask(SIG_SETMASK, [] [pid 5661] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5658] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5661] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5660] <... openat resumed>) = 3 [pid 5661] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5658] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5662] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] write(3, "1000", 4 [pid 5658] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5660] <... write resumed>) = 4 [pid 5658] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5660] close(3ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5663 attached [pid 5662] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5664 attached [pid 5662] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5661] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5663 [pid 5660] <... close resumed>) = 0 [pid 5660] write(1, "executing program\n", 18 [pid 5658] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5664 [pid 5663] set_robust_list(0x5555781b06e0, 24 [pid 5660] <... write resumed>) = 18 [pid 5658] rt_sigprocmask(SIG_SETMASK, [] [pid 5664] set_robust_list(0x5555781b06e0, 24 [pid 5663] <... set_robust_list resumed>) = 0 executing program [pid 5660] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5658] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5664] <... set_robust_list resumed>) = 0 [pid 5663] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] <... socket resumed>) = 3 [pid 5662] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5662] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5664] rt_sigprocmask(SIG_SETMASK, [] [pid 5663] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=40, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x800, nlmsg_seq=4294967293, nlmsg_pid=134217736}, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa3\x04\x04\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=40}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_BATCH|MSG_ZEROCOPY}, 0ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5665 attached [pid 5658] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5664] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5658] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5665] set_robust_list(0x5555781b06e0, 24 [pid 5664] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5663] <... prctl resumed>) = 0 [pid 5662] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5665 [pid 5665] <... set_robust_list resumed>) = 0 [pid 5662] rt_sigprocmask(SIG_SETMASK, [] [pid 5665] rt_sigprocmask(SIG_SETMASK, [] [pid 5662] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5666 attached [pid 5664] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5663] setpgid(0, 0 [pid 5658] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5666 [pid 5666] set_robust_list(0x5555781b06e0, 24 [pid 5665] setpgid(0, 0 [pid 5664] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5663] <... setpgid resumed>) = 0 ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5668 attached [pid 5658] rt_sigprocmask(SIG_SETMASK, [] [pid 5666] <... set_robust_list resumed>) = 0 [pid 5665] <... setpgid resumed>) = 0 [pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5668] set_robust_list(0x5555781b06e0, 24 [pid 5658] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5666] rt_sigprocmask(SIG_SETMASK, [] [pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5658] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5668] rt_sigprocmask(SIG_SETMASK, [] [pid 5666] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] <... openat resumed>) = 3 [pid 5663] <... openat resumed>) = 3 [pid 5658] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5668] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5666] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5664] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5668 [pid 5663] write(3, "1000", 4 [pid 5658] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5666] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5665] write(3, "1000", 4 [pid 5663] <... write resumed>) = 4 [pid 5668] <... prctl resumed>) = 0 [pid 5666] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5665] <... write resumed>) = 4 [pid 5664] rt_sigprocmask(SIG_SETMASK, [] [pid 5663] close(3ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5669 attached [pid 5668] setpgid(0, 0 [pid 5665] close(3 [pid 5664] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5663] <... close resumed>) = 0 [pid 5669] set_robust_list(0x5555781b06e0, 24 [pid 5668] <... setpgid resumed>) = 0 [pid 5665] <... close resumed>) = 0 [pid 5669] <... set_robust_list resumed>) = 0 [pid 5669] rt_sigprocmask(SIG_SETMASK, [] [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5665] write(1, "executing program\n", 18 executing program executing program [pid 5663] write(1, "executing program\n", 18 [pid 5658] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5669 [pid 5669] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] <... write resumed>) = 18 [pid 5663] <... write resumed>) = 18 [pid 5658] rt_sigprocmask(SIG_SETMASK, [] [pid 5669] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5668] <... openat resumed>) = 3 [pid 5665] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5663] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTEci-upstream-kasan-gce-root/strace-static-x86_64: Process 5670 attached [pid 5658] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5669] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5668] write(3, "1000", 4 [pid 5665] <... socket resumed>) = 3 [pid 5663] <... socket resumed>) = 3 [pid 5670] set_robust_list(0x5555781b06e0, 24 [pid 5669] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5668] <... write resumed>) = 4 [pid 5666] <... clone resumed>, child_tidptr=0x5555781b06d0) = 5670 [pid 5665] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=40, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x800, nlmsg_seq=4294967293, nlmsg_pid=134217736}, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa3\x04\x04\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=40}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_BATCH|MSG_ZEROCOPY}, 0 [ 429.081988][ T32] INFO: task syz-executor293:5660 blocked for more than 143 seconds. [ 429.082019][ T32] Not tainted syzkaller #0 [ 429.082030][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.082039][ T32] task:syz-executor293 state:D stack:21736 pid:5660 tgid:5660 ppid:5659 task_flags:0x400140 flags:0x00080002 [ 429.082094][ T32] Call Trace: [ 429.082102][ T32] [ 429.082114][ T32] __schedule+0x17db/0x58f0 [ 429.082233][ T32] ? kernel_text_address+0xa5/0xe0 [ 429.082256][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.082280][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.082301][ T32] ? unwind_get_return_address+0x4d/0x90 [ 429.082330][ T32] ? __pfx___schedule+0x10/0x10 [ 429.082367][ T32] ? schedule+0x90/0x2b0 [ 429.082399][ T32] schedule+0x164/0x2b0 [ 429.082431][ T32] schedule_preempt_disabled+0x13/0x30 [ 429.082449][ T32] __mutex_lock+0x7c1/0x1550 [ 429.082469][ T32] ? kasan_save_track+0x3e/0x80 [ 429.082493][ T32] ? __mutex_lock+0x5d4/0x1550 [ 429.082517][ T32] ? write_ports+0xb5/0xd10 [ 429.082549][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 429.082587][ T32] write_ports+0xb5/0xd10 [ 429.082616][ T32] ? __pfx_write_ports+0x10/0x10 [ 429.082642][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.082674][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.082704][ T32] ? _copy_from_user+0x94/0xb0 [ 429.082729][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.082750][ T32] ? simple_transaction_get+0x12d/0x160 [ 429.082781][ T32] nfsctl_transaction_write+0x10f/0x160 [ 429.082808][ T32] ? __pfx_nfsctl_transaction_write+0x10/0x10 [ 429.082835][ T32] vfs_write+0x296/0xba0 [ 429.082865][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.082895][ T32] ? __pfx_vfs_write+0x10/0x10 [ 429.082924][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.082949][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.082974][ T32] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.083004][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.083030][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.083056][ T32] ksys_write+0x150/0x270 [ 429.083087][ T32] ? __pfx_ksys_write+0x10/0x10 [ 429.083126][ T32] do_syscall_64+0x166/0x520 [ 429.083150][ T32] ? trace_irq_disable+0x3b/0x140 [ 429.083170][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.083194][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.083214][ T32] RIP: 0033:0x7fd4de81c6b9 [ 429.083231][ T32] RSP: 002b:00007ffd39b44548 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 429.083250][ T32] RAX: ffffffffffffffda RBX: 0000200000000140 RCX: 00007fd4de81c6b9 [ 429.083264][ T32] RDX: 000000000000000a RSI: 0000200000000180 RDI: 0000000000000004 [ 429.083276][ T32] RBP: 0000200000000040 R08: 0000000000000009 R09: 0000000000000009 [ 429.083288][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 0000200000000000 [ 429.083300][ T32] R13: 0000000000000002 R14: 0000200000000003 R15: 00007ffd39b44560 [ 429.083329][ T32] [ 429.083338][ T32] INFO: task syz-executor293:5663 blocked for more than 143 seconds. [ 429.083352][ T32] Not tainted syzkaller #0 [ 429.083361][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.083369][ T32] task:syz-executor293 state:D stack:26752 pid:5663 tgid:5663 ppid:5661 task_flags:0x400140 flags:0x00080002 [ 429.083424][ T32] Call Trace: [ 429.083431][ T32] [ 429.083442][ T32] __schedule+0x17db/0x58f0 [ 429.083485][ T32] ? kernel_text_address+0xa5/0xe0 [ 429.083506][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.083529][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.083550][ T32] ? unwind_get_return_address+0x4d/0x90 [ 429.083578][ T32] ? __pfx___schedule+0x10/0x10 [ 429.083615][ T32] ? schedule+0x90/0x2b0 [ 429.083648][ T32] schedule+0x164/0x2b0 [ 429.083680][ T32] schedule_preempt_disabled+0x13/0x30 [ 429.083698][ T32] __mutex_lock+0x7c1/0x1550 [ 429.083717][ T32] ? kasan_save_track+0x3e/0x80 [ 429.083740][ T32] ? __mutex_lock+0x5d4/0x1550 [ 429.083764][ T32] ? write_ports+0xb5/0xd10 [ 429.083791][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 429.083830][ T32] write_ports+0xb5/0xd10 [ 429.083858][ T32] ? __pfx_write_ports+0x10/0x10 [ 429.083884][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.083913][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.083944][ T32] ? _copy_from_user+0x94/0xb0 [ 429.083967][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.083988][ T32] ? simple_transaction_get+0x12d/0x160 [ 429.084018][ T32] nfsctl_transaction_write+0x10f/0x160 [ 429.084045][ T32] ? __pfx_nfsctl_transaction_write+0x10/0x10 [ 429.084071][ T32] vfs_write+0x296/0xba0 [ 429.084103][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.084132][ T32] ? __pfx_vfs_write+0x10/0x10 [ 429.084164][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.084190][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.084214][ T32] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.084242][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.084268][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.084293][ T32] ksys_write+0x150/0x270 [ 429.084324][ T32] ? __pfx_ksys_write+0x10/0x10 [ 429.084363][ T32] do_syscall_64+0x166/0x520 [ 429.084382][ T32] ? trace_irq_disable+0x3b/0x140 [ 429.084401][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.084425][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.084444][ T32] RIP: 0033:0x7fd4de81c6b9 [ 429.084459][ T32] RSP: 002b:00007ffd39b44548 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 429.084477][ T32] RAX: ffffffffffffffda RBX: 0000200000000140 RCX: 00007fd4de81c6b9 [ 429.084491][ T32] RDX: 000000000000000a RSI: 0000200000000180 RDI: 0000000000000004 [ 429.084503][ T32] RBP: 0000200000000040 R08: 0000000000000009 R09: 0000000000000009 [ 429.084515][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 0000200000000000 [ 429.084527][ T32] R13: 0000000000000002 R14: 0000200000000003 R15: 00007ffd39b44560 [ 429.084555][ T32] [ 429.084563][ T32] INFO: task syz-executor293:5665 blocked for more than 143 seconds. [ 429.084575][ T32] Not tainted syzkaller #0 [ 429.084584][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.084592][ T32] task:syz-executor293 state:D stack:26744 pid:5665 tgid:5665 ppid:5662 task_flags:0x400140 flags:0x00080002 [ 429.084647][ T32] Call Trace: [ 429.084653][ T32] [ 429.084664][ T32] __schedule+0x17db/0x58f0 [ 429.084707][ T32] ? kernel_text_address+0xa5/0xe0 [ 429.084728][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.084750][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.084772][ T32] ? unwind_get_return_address+0x4d/0x90 [ 429.084799][ T32] ? __pfx___schedule+0x10/0x10 [ 429.084836][ T32] ? schedule+0x90/0x2b0 [ 429.084868][ T32] schedule+0x164/0x2b0 [ 429.084899][ T32] schedule_preempt_disabled+0x13/0x30 [ 429.084917][ T32] __mutex_lock+0x7c1/0x1550 [ 429.084937][ T32] ? kasan_save_track+0x3e/0x80 [ 429.084960][ T32] ? __mutex_lock+0x5d4/0x1550 [ 429.084984][ T32] ? write_ports+0xb5/0xd10 [ 429.085011][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 429.085048][ T32] write_ports+0xb5/0xd10 [ 429.085076][ T32] ? __pfx_write_ports+0x10/0x10 [ 429.085102][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085132][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085166][ T32] ? _copy_from_user+0x94/0xb0 [ 429.085189][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085211][ T32] ? simple_transaction_get+0x12d/0x160 [ 429.085240][ T32] nfsctl_transaction_write+0x10f/0x160 [ 429.085267][ T32] ? __pfx_nfsctl_transaction_write+0x10/0x10 [ 429.085294][ T32] vfs_write+0x296/0xba0 [ 429.085321][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085350][ T32] ? __pfx_vfs_write+0x10/0x10 [ 429.085379][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085405][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085429][ T32] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.085457][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085483][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085508][ T32] ksys_write+0x150/0x270 [ 429.085539][ T32] ? __pfx_ksys_write+0x10/0x10 [ 429.085577][ T32] do_syscall_64+0x166/0x520 [ 429.085597][ T32] ? trace_irq_disable+0x3b/0x140 [ 429.085615][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.085639][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.085660][ T32] RIP: 0033:0x7fd4de81c6b9 [ 429.085675][ T32] RSP: 002b:00007ffd39b44548 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 429.085693][ T32] RAX: ffffffffffffffda RBX: 0000200000000140 RCX: 00007fd4de81c6b9 [ 429.085707][ T32] RDX: 000000000000000a RSI: 0000200000000180 RDI: 0000000000000004 [ 429.085718][ T32] RBP: 0000200000000040 R08: 0000000000000009 R09: 0000000000000009 [ 429.085730][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 0000200000000000 [ 429.085742][ T32] R13: 0000000000000002 R14: 0000200000000003 R15: 00007ffd39b44560 [ 429.085770][ T32] [ 429.085779][ T32] INFO: task syz-executor293:5668 blocked for more than 143 seconds. [ 429.085792][ T32] Not tainted syzkaller #0 [ 429.085806][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.085814][ T32] task:syz-executor293 state:D stack:26752 pid:5668 tgid:5668 ppid:5664 task_flags:0x400140 flags:0x00080002 [ 429.085867][ T32] Call Trace: [ 429.085873][ T32] [ 429.085884][ T32] __schedule+0x17db/0x58f0 [ 429.085926][ T32] ? kernel_text_address+0xa5/0xe0 [ 429.085948][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085970][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.085992][ T32] ? unwind_get_return_address+0x4d/0x90 [ 429.086019][ T32] ? __pfx___schedule+0x10/0x10 [ 429.086056][ T32] ? schedule+0x90/0x2b0 [ 429.086088][ T32] schedule+0x164/0x2b0 [ 429.086119][ T32] schedule_preempt_disabled+0x13/0x30 [ 429.086137][ T32] __mutex_lock+0x7c1/0x1550 [ 429.086160][ T32] ? kasan_save_track+0x3e/0x80 [ 429.086184][ T32] ? __mutex_lock+0x5d4/0x1550 [ 429.086207][ T32] ? write_ports+0xb5/0xd10 [ 429.086234][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 429.086272][ T32] write_ports+0xb5/0xd10 [ 429.086300][ T32] ? __pfx_write_ports+0x10/0x10 [ 429.086326][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.086356][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.086386][ T32] ? _copy_from_user+0x94/0xb0 [ 429.086409][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.086430][ T32] ? simple_transaction_get+0x12d/0x160 [ 429.086460][ T32] nfsctl_transaction_write+0x10f/0x160 [ 429.086487][ T32] ? __pfx_nfsctl_transaction_write+0x10/0x10 [ 429.086513][ T32] vfs_write+0x296/0xba0 [ 429.086545][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.086574][ T32] ? __pfx_vfs_write+0x10/0x10 [ 429.086603][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.086628][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.086654][ T32] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.086682][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.086708][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.086733][ T32] ksys_write+0x150/0x270 [ 429.086764][ T32] ? __pfx_ksys_write+0x10/0x10 [ 429.086803][ T32] do_syscall_64+0x166/0x520 [ 429.086822][ T32] ? trace_irq_disable+0x3b/0x140 [ 429.086841][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.086865][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.086884][ T32] RIP: 0033:0x7fd4de81c6b9 [ 429.086899][ T32] RSP: 002b:00007ffd39b44548 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 429.086917][ T32] RAX: ffffffffffffffda RBX: 0000200000000140 RCX: 00007fd4de81c6b9 [ 429.086931][ T32] RDX: 000000000000000a RSI: 0000200000000180 RDI: 0000000000000004 [ 429.086943][ T32] RBP: 0000200000000040 R08: 0000000000000009 R09: 0000000000000009 [ 429.086955][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 0000200000000000 [ 429.086967][ T32] R13: 0000000000000002 R14: 0000200000000003 R15: 00007ffd39b44560 [ 429.086995][ T32] [ 429.087003][ T32] INFO: task syz-executor293:5670 blocked for more than 143 seconds. [ 429.087016][ T32] Not tainted syzkaller #0 [ 429.087025][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.087032][ T32] task:syz-executor293 state:D stack:26752 pid:5670 tgid:5670 ppid:5666 task_flags:0x400140 flags:0x00080002 [ 429.087085][ T32] Call Trace: [ 429.087091][ T32] [ 429.087102][ T32] __schedule+0x17db/0x58f0 [ 429.087151][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087174][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087202][ T32] ? __pfx___schedule+0x10/0x10 [ 429.087239][ T32] ? schedule+0x90/0x2b0 [ 429.087271][ T32] schedule+0x164/0x2b0 [ 429.087303][ T32] schedule_preempt_disabled+0x13/0x30 [ 429.087320][ T32] __mutex_lock+0x7c1/0x1550 [ 429.087340][ T32] ? kasan_save_track+0x3e/0x80 [ 429.087363][ T32] ? __mutex_lock+0x5d4/0x1550 [ 429.087387][ T32] ? write_ports+0xb5/0xd10 [ 429.087414][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 429.087452][ T32] write_ports+0xb5/0xd10 [ 429.087479][ T32] ? __pfx_write_ports+0x10/0x10 [ 429.087505][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087535][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087565][ T32] ? _copy_from_user+0x94/0xb0 [ 429.087588][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087610][ T32] ? simple_transaction_get+0x12d/0x160 [ 429.087639][ T32] nfsctl_transaction_write+0x10f/0x160 [ 429.087666][ T32] ? __pfx_nfsctl_transaction_write+0x10/0x10 [ 429.087693][ T32] vfs_write+0x296/0xba0 [ 429.087720][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087749][ T32] ? __pfx_vfs_write+0x10/0x10 [ 429.087778][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087803][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087828][ T32] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.087856][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087881][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.087907][ T32] ksys_write+0x150/0x270 [ 429.087938][ T32] ? __pfx_ksys_write+0x10/0x10 [ 429.087976][ T32] do_syscall_64+0x166/0x520 [ 429.087995][ T32] ? trace_irq_disable+0x3b/0x140 [ 429.088014][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.088038][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.088057][ T32] RIP: 0033:0x7fd4de81c6b9 [ 429.088072][ T32] RSP: 002b:00007ffd39b44548 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 429.088090][ T32] RAX: ffffffffffffffda RBX: 0000200000000140 RCX: 00007fd4de81c6b9 [ 429.088104][ T32] RDX: 000000000000000a RSI: 0000200000000180 RDI: 0000000000000004 [ 429.088116][ T32] RBP: 0000200000000040 R08: 0000000000000009 R09: 0000000000000009 [ 429.088128][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 0000200000000000 [ 429.088140][ T32] R13: 0000000000000002 R14: 0000200000000003 R15: 00007ffd39b44560 [ 429.088171][ T32] [ 429.088180][ T32] [ 429.088180][ T32] Showing all locks held in the system: [ 429.088189][ T32] locks held by kworker/u8:1/13: 2, on CPU#1: [ 429.088203][ T32] #0: ffff88801b0a4140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 429.088262][ T32] #1: ffffc90000127c40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 429.088317][ T32] locks held by khungtaskd/32: 1, last CPU#1: [ 429.088333][ T32] #0: ffffffff8ed5c8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 429.088395][ T32] locks held by getty/5366: 2, on CPU#1: [ 429.088408][ T32] #0: ffff8880292a30a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 429.088464][ T32] #1: ffffc9000322b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 429.088514][ T32] locks held by syz-executor293/5660: 2, on CPU#0: [ 429.088527][ T32] #0: ffff88807b00c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 [ 429.088587][ T32] #1: ffffffff8f09f500 (nfsd_mutex){+.+.}-{4:4}, at: write_ports+0xb5/0xd10 [ 429.088640][ T32] locks held by syz-executor293/5663: 2, on CPU#0: [ 429.088653][ T32] #0: ffff88807b00c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 [ 429.088712][ T32] #1: ffffffff8f09f500 (nfsd_mutex){+.+.}-{4:4}, at: write_ports+0xb5/0xd10 [ 429.088764][ T32] locks held by syz-executor293/5665: 2, on CPU#1: [ 429.088781][ T32] #0: ffff88807b00c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 [ 429.088840][ T32] #1: ffffffff8f09f500 (nfsd_mutex){+.+.}-{4:4}, at: write_ports+0xb5/0xd10 [ 429.088893][ T32] locks held by syz-executor293/5668: 2, on CPU#0: [ 429.088905][ T32] #0: ffff88807b00c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 [ 429.088965][ T32] #1: ffffffff8f09f500 (nfsd_mutex){+.+.}-{4:4}, at: write_ports+0xb5/0xd10 [ 429.089017][ T32] locks held by syz-executor293/5670: 2, on CPU#1: [ 429.089030][ T32] #0: ffff88807b00c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 [ 429.089089][ T32] #1: ffffffff8f09f500 (nfsd_mutex){+.+.}-{4:4}, at: write_ports+0xb5/0xd10 [ 429.089142][ T32] locks held by syz-executor293/5671: 2, on CPU#0: [ 429.089158][ T32] #0: ffff88807b00c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 [ 429.089218][ T32] #1: ffffffff8f09f500 (nfsd_mutex){+.+.}-{4:4}, at: write_ports+0xb5/0xd10 [ 429.089270][ T32] [ 429.089276][ T32] ============================================= [ 429.089276][ T32] [ 429.089284][ T32] NMI backtrace for cpu 1 [ 429.089295][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 429.089314][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026 [ 429.089325][ T32] Call Trace: [ 429.089332][ T32] [ 429.089340][ T32] dump_stack_lvl+0xe8/0x150 [ 429.089367][ T32] nmi_cpu_backtrace+0x274/0x2d0 [ 429.089394][ T32] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 429.089426][ T32] nmi_trigger_cpumask_backtrace+0x17d/0x390 [ 429.089455][ T32] sys_info+0x135/0x170 [ 429.089479][ T32] watchdog+0xfd7/0x1030 [ 429.089504][ T32] ? watchdog+0x1c7/0x1030 [ 429.089528][ T32] kthread+0x38b/0x480 [ 429.089547][ T32] ? __pfx_watchdog+0x10/0x10 [ 429.089564][ T32] ? __pfx_kthread+0x10/0x10 [ 429.089583][ T32] ret_from_fork+0x514/0xb70 [ 429.089604][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 429.089633][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.089654][ T32] ? __switch_to+0xc89/0x1420 [ 429.089682][ T32] ? __pfx_kthread+0x10/0x10 [ 429.089701][ T32] ret_from_fork_asm+0x1a/0x30 [ 429.089743][ T32] [ 429.089750][ T32] Sending NMI from CPU 1 to CPUs 0: [ 429.089790][ C0] NMI backtrace for cpu 0 [ 429.089803][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 429.089827][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026 [ 429.089840][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 429.089865][ C0] Code: 9c 8f 02 e9 5e 50 2b f5 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 33 91 24 00 fb f4 37 50 2b f5 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 429.089883][ C0] RSP: 0018:ffffffff8ea07ca0 EFLAGS: 00000242 [ 429.089903][ C0] RAX: 00000000000d29c7 RBX: ffffffff819baed0 RCX: 8000000000000001 [ 429.089919][ C0] RDX: 0000000000000001 RSI: ffffffff8e475f59 RDI: ffffffff8c6d9a80 [ 429.089936][ C0] RBP: ffffffff8ea07d78 R08: ffff8880b8633a1b R09: 1ffff110170c6743 [ 429.089953][ C0] R10: dffffc0000000000 R11: ffffed10170c6744 R12: 0000000000000000 [ 429.089969][ C0] R13: 1ffffffff1d51df8 R14: 1ffffffff1d40f9c R15: dffffc0000000000 [ 429.089989][ C0] FS: 0000000000000000(0000) GS:ffff888124cd2000(0000) knlGS:0000000000000000 [ 429.090007][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 429.090023][ C0] CR2: 00007f00531fee9c CR3: 0000000025319000 CR4: 0000000000350ef0 [ 429.090041][ C0] Call Trace: [ 429.090049][ C0] [ 429.090057][ C0] default_idle+0x9/0x20 [ 429.090084][ C0] default_idle_call+0x72/0xb0 [ 429.090112][ C0] do_idle+0x2e0/0x540 [ 429.090151][ C0] ? __pfx_do_idle+0x10/0x10 [ 429.090189][ C0] ? do_idle+0x11/0x540 [ 429.090228][ C0] cpu_startup_entry+0x43/0x60 [ 429.090250][ C0] rest_init+0x378/0x3a0 [ 429.090280][ C0] ? __pfx_rest_init+0x10/0x10 [ 429.090315][ C0] ? __pfx_kernel_init+0x10/0x10 [ 429.090347][ C0] ? __pfx_acpi_hw_get_mode+0x10/0x10 [ 429.090382][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.090409][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 429.090436][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.090466][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 429.090494][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 429.090525][ C0] ? acpi_enable_subsystem+0x286/0x3c0 [ 429.090571][ C0] start_kernel+0x392/0x3e0 [ 429.090597][ C0] x86_64_start_reservations+0x24/0x30 [ 429.090630][ C0] x86_64_start_kernel+0x137/0x1b0 [ 429.090665][ C0] common_startup_64+0x13e/0x157 [ 429.090707][ C0] [ 429.090771][ T32] Kernel panic - not syncing: hung_task: blocked tasks [ 431.079294][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 431.088397][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026 [ 431.098443][ T32] Call Trace: [ 431.101715][ T32] [ 431.104639][ T32] vpanic+0x56d/0xa60 [ 431.108631][ T32] ? __pfx_vpanic+0x10/0x10 [ 431.113134][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 431.118766][ T32] ? console_srcu_read_unlock+0x3a/0x60 [ 431.124313][ T32] panic+0xc5/0xd0 [ 431.128040][ T32] ? __pfx_panic+0x10/0x10 [ 431.132458][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 431.138090][ T32] ? wq_watchdog_touch+0xf9/0x160 [ 431.143120][ T32] ? nmi_trigger_cpumask_backtrace+0x24d/0x390 [ 431.149281][ T32] watchdog+0x1030/0x1030 [ 431.153608][ T32] ? watchdog+0x1c7/0x1030 [ 431.158026][ T32] kthread+0x38b/0x480 [ 431.162088][ T32] ? __pfx_watchdog+0x10/0x10 [ 431.166761][ T32] ? __pfx_kthread+0x10/0x10 [ 431.171346][ T32] ret_from_fork+0x514/0xb70 [ 431.175930][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 431.181047][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 431.186671][ T32] ? __switch_to+0xc89/0x1420 [ 431.191353][ T32] ? __pfx_kthread+0x10/0x10 [ 431.195939][ T32] ret_from_fork_asm+0x1a/0x30 [ 431.200722][ T32] [ 431.203958][ T32] Kernel Offset: disabled [ 431.208268][ T32] Rebooting in 86400 seconds..