./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1861157789 <...> Warning: Permanently added '10.128.0.177' (ED25519) to the list of known hosts. execve("./syz-executor1861157789", ["./syz-executor1861157789"], 0x7ffe12fe70e0 /* 10 vars */) = 0 brk(NULL) = 0x555555d5e000 brk(0x555555d5ed00) = 0x555555d5ed00 arch_prctl(ARCH_SET_FS, 0x555555d5e380) = 0 set_tid_address(0x555555d5e650) = 5048 set_robust_list(0x555555d5e660, 24) = 0 rseq(0x555555d5eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1861157789", 4096) = 28 getrandom("\x6f\xfb\xde\xf6\x58\xcc\x08\x9c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555d5ed00 brk(0x555555d7fd00) = 0x555555d7fd00 brk(0x555555d80000) = 0x555555d80000 mprotect(0x7f419c933000, 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=0x555555d5e650) = 5049 ./strace-static-x86_64: Process 5049 attached [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5049] set_robust_list(0x555555d5e660, 24) = 0 [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5050 attached [pid 5048] <... clone resumed>, child_tidptr=0x555555d5e650) = 5050 [pid 5050] set_robust_list(0x555555d5e660, 24) = 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5050] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5051 attached [pid 5051] set_robust_list(0x555555d5e660, 24) = 0 [pid 5051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5051] setpgid(0, 0) = 0 [pid 5051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5051] write(3, "1000", 4) = 4 [pid 5051] close(3 [pid 5049] <... clone resumed>, child_tidptr=0x555555d5e650) = 5051 ./strace-static-x86_64: Process 5053 attached ./strace-static-x86_64: Process 5052 attached [pid 5048] <... clone resumed>, child_tidptr=0x555555d5e650) = 5052 [pid 5051] <... close resumed>) = 0 [pid 5050] <... clone resumed>, child_tidptr=0x555555d5e650) = 5053 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] set_robust_list(0x555555d5e660, 24 [pid 5052] set_robust_list(0x555555d5e660, 24) = 0 [pid 5052] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... set_robust_list resumed>) = 0 [pid 5051] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME./strace-static-x86_64: Process 5054 attached [pid 5053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5054] set_robust_list(0x555555d5e660, 24) = 0 [pid 5053] <... prctl resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x555555d5e650) = 5054 [pid 5054] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] setpgid(0, 0 [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5053] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5055 attached [pid 5053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5052] <... clone resumed>, child_tidptr=0x555555d5e650) = 5055 [pid 5055] set_robust_list(0x555555d5e660, 24 [pid 5051] <... openat resumed>) = 3 [pid 5055] <... set_robust_list resumed>) = 0 [pid 5053] <... openat resumed>) = 3 [pid 5051] dup(3 [pid 5055] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5053] write(3, "1000", 4 [pid 5051] <... dup resumed>) = 4 [pid 5053] <... write resumed>) = 4 [pid 5051] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5055] <... prctl resumed>) = 0 [pid 5053] close(3./strace-static-x86_64: Process 5056 attached [pid 5055] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5057 attached [pid 5053] <... close resumed>) = 0 [pid 5048] <... clone resumed>, child_tidptr=0x555555d5e650) = 5056 [pid 5057] set_robust_list(0x555555d5e660, 24 [pid 5056] set_robust_list(0x555555d5e660, 24 [pid 5055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5053] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5057] <... set_robust_list resumed>) = 0 [pid 5057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5056] <... set_robust_list resumed>) = 0 [pid 5055] <... openat resumed>) = 3 [pid 5054] <... clone resumed>, child_tidptr=0x555555d5e650) = 5057 [pid 5053] <... openat resumed>) = 3 [pid 5056] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5048] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5057] <... prctl resumed>) = 0 [pid 5055] write(3, "1000", 4 [pid 5053] dup(3 [pid 5055] <... write resumed>) = 4 [pid 5055] close(3) = 0 [pid 5055] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME [pid 5057] setpgid(0, 0 [pid 5055] <... openat resumed>) = 3 [pid 5053] <... dup resumed>) = 4 [pid 5055] dup(3 [pid 5057] <... setpgid resumed>) = 0 [pid 5055] <... dup resumed>) = 4 [pid 5055] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807./strace-static-x86_64: Process 5058 attached [pid 5057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5056] <... clone resumed>, child_tidptr=0x555555d5e650) = 5058 [pid 5053] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5058] set_robust_list(0x555555d5e660, 24 [pid 5057] <... openat resumed>) = 3 [pid 5058] <... set_robust_list resumed>) = 0 [pid 5058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5057] write(3, "1000", 4./strace-static-x86_64: Process 5059 attached [pid 5058] <... prctl resumed>) = 0 [pid 5059] set_robust_list(0x555555d5e660, 24 [pid 5058] setpgid(0, 0 [pid 5048] <... clone resumed>, child_tidptr=0x555555d5e650) = 5059 [pid 5057] <... write resumed>) = 4 [pid 5059] <... set_robust_list resumed>) = 0 [pid 5058] <... setpgid resumed>) = 0 [pid 5057] close(3 [pid 5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5057] <... close resumed>) = 0 [pid 5057] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME) = 3 [pid 5058] <... openat resumed>) = 3 [pid 5057] dup(3 [pid 5058] write(3, "1000", 4 [pid 5057] <... dup resumed>) = 4 [pid 5058] <... write resumed>) = 4 [pid 5058] close(3) = 0 [pid 5057] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5058] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME./strace-static-x86_64: Process 5060 attached [pid 5059] <... clone resumed>, child_tidptr=0x555555d5e650) = 5060 [pid 5058] <... openat resumed>) = 3 [pid 5060] set_robust_list(0x555555d5e660, 24 [pid 5058] dup(3) = 4 [pid 5058] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5060] <... set_robust_list resumed>) = 0 [pid 5060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5060] setpgid(0, 0) = 0 [pid 5060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "1000", 4) = 4 [pid 5060] close(3) = 0 [pid 5060] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME) = 3 [pid 5060] dup(3) = 4 [ 97.104013][ T23] cfg80211: failed to load regulatory.db [pid 5060] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5049] kill(-5051, SIGKILL [pid 5050] kill(-5053, SIGKILL) = 0 [pid 5050] kill(5053, SIGKILL) = 0 [pid 5049] <... kill resumed>) = 0 [pid 5049] kill(5051, SIGKILL) = 0 [pid 5052] kill(-5055, SIGKILL) = 0 [pid 5052] kill(5055, SIGKILL) = 0 [pid 5054] kill(-5057, SIGKILL) = 0 [pid 5054] kill(5057, SIGKILL) = 0 [pid 5056] kill(-5058, SIGKILL) = 0 [pid 5056] kill(5058, SIGKILL) = 0 [pid 5059] kill(-5060, SIGKILL) = 0 [pid 5059] kill(5060, SIGKILL) = 0 [pid 5056] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5056] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5052] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5056] getdents64(3, [pid 5052] <... openat resumed>) = 3 [pid 5052] newfstatat(3, "", [pid 5056] <... getdents64 resumed>0x555555d5f6f0 /* 2 entries */, 32768) = 48 [pid 5052] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5059] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5052] getdents64(3, [pid 5050] <... openat resumed>) = 3 [pid 5059] <... openat resumed>) = 3 [pid 5052] <... getdents64 resumed>0x555555d5f6f0 /* 2 entries */, 32768) = 48 [pid 5056] getdents64(3, 0x555555d5f6f0 /* 0 entries */, 32768) = 0 [pid 5056] close(3) = 0 [pid 5052] getdents64(3, [pid 5059] newfstatat(3, "", [pid 5052] <... getdents64 resumed>0x555555d5f6f0 /* 0 entries */, 32768) = 0 [pid 5050] newfstatat(3, "", [pid 5059] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5052] close(3 [pid 5050] <... newfstatat resumed>{st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5059] getdents64(3, [pid 5052] <... close resumed>) = 0 [pid 5059] <... getdents64 resumed>0x555555d5f6f0 /* 2 entries */, 32768) = 48 [pid 5050] getdents64(3, [pid 5059] getdents64(3, [pid 5050] <... getdents64 resumed>0x555555d5f6f0 /* 2 entries */, 32768) = 48 [pid 5059] <... getdents64 resumed>0x555555d5f6f0 /* 0 entries */, 32768) = 0 [pid 5050] getdents64(3, [pid 5059] close(3 [pid 5050] <... getdents64 resumed>0x555555d5f6f0 /* 0 entries */, 32768) = 0 [pid 5059] <... close resumed>) = 0 [pid 5050] close(3 [pid 5054] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5050] <... close resumed>) = 0 [pid 5054] <... openat resumed>) = 3 [pid 5049] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5054] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5049] <... openat resumed>) = 3 [pid 5054] getdents64(3, [pid 5049] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5054] <... getdents64 resumed>0x555555d5f6f0 /* 2 entries */, 32768) = 48 [pid 5049] getdents64(3, [pid 5054] getdents64(3, 0x555555d5f6f0 /* 0 entries */, 32768) = 0 [pid 5054] close(3 [pid 5049] <... getdents64 resumed>0x555555d5f6f0 /* 2 entries */, 32768) = 48 [pid 5054] <... close resumed>) = 0 [pid 5049] getdents64(3, 0x555555d5f6f0 /* 0 entries */, 32768) = 0 [pid 5049] close(3) = 0 [pid 5051] <... fallocate resumed>) = ? [pid 5051] +++ killed by SIGKILL +++ [pid 5049] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5051, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=11264 /* 112.64 s */} --- [pid 5049] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555d5e650) = 5078 ./strace-static-x86_64: Process 5078 attached [pid 5078] set_robust_list(0x555555d5e660, 24) = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_NONBLOCK|O_SYNC|O_LARGEFILE|O_NOATIME) = 3 [pid 5078] dup(3) = 4 [pid 5078] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 0, 9223372036854775807 [pid 5049] kill(-5078, SIGKILL) = 0 [pid 5049] kill(5078, SIGKILL) = 0 [pid 5049] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5049] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5049] getdents64(3, 0x555555d5f6f0 /* 2 entries */, 32768) = 48 [pid 5049] getdents64(3, 0x555555d5f6f0 /* 0 entries */, 32768) = 0 [pid 5049] close(3) = 0 [ 286.537316][ T29] INFO: task syz-executor186:5053 blocked for more than 143 seconds. [ 286.546467][ T29] Not tainted 6.6.0-rc6-syzkaller-00029-g213f891525c2 #0 [ 286.554169][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.563893][ T29] task:syz-executor186 state:D stack:28160 pid:5053 ppid:5050 flags:0x00004006 [ 286.573215][ T29] Call Trace: [ 286.576529][ T29] [ 286.581098][ T29] __schedule+0xee1/0x5a10 [ 286.588803][ T29] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 286.596420][ T29] ? print_usage_bug.part.0+0x670/0x670 [ 286.602079][ T29] ? io_schedule_timeout+0x150/0x150 [ 286.608848][ T29] ? rwsem_down_write_slowpath+0x48e/0x12a0 [ 286.616380][ T29] schedule+0xe7/0x1b0 [ 286.622235][ T29] schedule_preempt_disabled+0x13/0x20 [ 286.633524][ T29] rwsem_down_write_slowpath+0x53d/0x12a0 [ 286.646656][ T29] ? down_timeout+0x90/0x90 [ 286.655413][ T29] ? lock_sync+0x190/0x190 [ 286.659969][ T29] ? preempt_count_sub+0x150/0x150 [ 286.665169][ T29] down_write+0x1d3/0x200 [ 286.669582][ T29] ? rwsem_down_write_slowpath+0x12a0/0x12a0 [ 286.675631][ T29] blkdev_fallocate+0x1e9/0x450 [ 286.680624][ T29] ? file_to_blk_mode+0x130/0x130 [ 286.685703][ T29] vfs_fallocate+0x46c/0xe80 [ 286.690884][ T29] __x64_sys_fallocate+0xd5/0x140 [ 286.696402][ T29] do_syscall_64+0x38/0xb0 [ 286.700967][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.707808][ T29] RIP: 0033:0x7f419c8c0b29 [ 286.712781][ T29] RSP: 002b:00007ffff0e81328 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 286.721726][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f419c8c0b29 [ 286.730142][ T29] RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004 [ 286.738588][ T29] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 286.747036][ T29] R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000001 [ 286.755091][ T29] R13: 00007ffff0e81548 R14: 00007ffff0e81350 R15: 00007ffff0e81340 [ 286.763154][ T29] [ 286.766230][ T29] INFO: task syz-executor186:5057 blocked for more than 143 seconds. [ 286.774354][ T29] Not tainted 6.6.0-rc6-syzkaller-00029-g213f891525c2 #0 [ 286.781949][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.791148][ T29] task:syz-executor186 state:D stack:28160 pid:5057 ppid:5054 flags:0x00004006 [ 286.800863][ T29] Call Trace: [ 286.804647][ T29] [ 286.807641][ T29] __schedule+0xee1/0x5a10 [ 286.812612][ T29] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 286.819074][ T29] ? print_usage_bug.part.0+0x670/0x670 [ 286.824682][ T29] ? io_schedule_timeout+0x150/0x150 [ 286.830484][ T29] ? rwsem_down_write_slowpath+0x48e/0x12a0 [ 286.836889][ T29] schedule+0xe7/0x1b0 [ 286.841030][ T29] schedule_preempt_disabled+0x13/0x20 [ 286.846925][ T29] rwsem_down_write_slowpath+0x53d/0x12a0 [ 286.852746][ T29] ? down_timeout+0x90/0x90 [ 286.857344][ T29] ? lock_sync+0x190/0x190 [ 286.861810][ T29] ? preempt_count_sub+0x150/0x150 [ 286.867121][ T29] down_write+0x1d3/0x200 [ 286.871492][ T29] ? rwsem_down_write_slowpath+0x12a0/0x12a0 [ 286.877556][ T29] blkdev_fallocate+0x1e9/0x450 [ 286.882461][ T29] ? file_to_blk_mode+0x130/0x130 [ 286.887566][ T29] vfs_fallocate+0x46c/0xe80 [ 286.892711][ T29] __x64_sys_fallocate+0xd5/0x140 [ 286.898314][ T29] do_syscall_64+0x38/0xb0 [ 286.902784][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.908770][ T29] RIP: 0033:0x7f419c8c0b29 [ 286.913721][ T29] RSP: 002b:00007ffff0e81328 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 286.922678][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f419c8c0b29 [ 286.931148][ T29] RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004 [ 286.939603][ T29] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 286.948022][ T29] R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000001 [ 286.956467][ T29] R13: 00007ffff0e81548 R14: 00007ffff0e81350 R15: 00007ffff0e81340 [ 286.964514][ T29] [ 286.967598][ T29] INFO: task syz-executor186:5058 blocked for more than 143 seconds. [ 286.975678][ T29] Not tainted 6.6.0-rc6-syzkaller-00029-g213f891525c2 #0 [ 286.983338][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.992603][ T29] task:syz-executor186 state:D stack:27088 pid:5058 ppid:5056 flags:0x00004006 [ 287.002356][ T29] Call Trace: [ 287.005697][ T29] [ 287.009117][ T29] __schedule+0xee1/0x5a10 [ 287.014029][ T29] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 287.020240][ T29] ? print_usage_bug.part.0+0x670/0x670 [ 287.025930][ T29] ? io_schedule_timeout+0x150/0x150 [ 287.031329][ T29] ? rwsem_down_write_slowpath+0x48e/0x12a0 [ 287.037347][ T29] schedule+0xe7/0x1b0 [ 287.041484][ T29] schedule_preempt_disabled+0x13/0x20 [ 287.047596][ T29] rwsem_down_write_slowpath+0x53d/0x12a0 [ 287.053408][ T29] ? down_timeout+0x90/0x90 [ 287.058530][ T29] ? lock_sync+0x190/0x190 [ 287.063468][ T29] ? preempt_count_sub+0x150/0x150 [ 287.069044][ T29] down_write+0x1d3/0x200 [ 287.073451][ T29] ? rwsem_down_write_slowpath+0x12a0/0x12a0 [ 287.079798][ T29] blkdev_fallocate+0x1e9/0x450 [ 287.084711][ T29] ? file_to_blk_mode+0x130/0x130 [ 287.089825][ T29] vfs_fallocate+0x46c/0xe80 [ 287.094481][ T29] __x64_sys_fallocate+0xd5/0x140 [ 287.100029][ T29] do_syscall_64+0x38/0xb0 [ 287.104924][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 287.111348][ T29] RIP: 0033:0x7f419c8c0b29 [ 287.116174][ T29] RSP: 002b:00007ffff0e81328 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 287.125171][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f419c8c0b29 [ 287.134029][ T29] RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004 [ 287.142644][ T29] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 287.151162][ T29] R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000001 [ 287.159227][ T29] R13: 00007ffff0e81548 R14: 00007ffff0e81350 R15: 00007ffff0e81340 [ 287.167277][ T29] [ 287.170741][ T29] INFO: task syz-executor186:5060 blocked for more than 143 seconds. [ 287.179395][ T29] Not tainted 6.6.0-rc6-syzkaller-00029-g213f891525c2 #0 [ 287.187800][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.196900][ T29] task:syz-executor186 state:D stack:27728 pid:5060 ppid:5059 flags:0x00004006 [ 287.206582][ T29] Call Trace: [ 287.210284][ T29] [ 287.213709][ T29] __schedule+0xee1/0x5a10 [ 287.218648][ T29] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 287.224702][ T29] ? print_usage_bug.part.0+0x670/0x670 [ 287.230367][ T29] ? io_schedule_timeout+0x150/0x150 [ 287.235711][ T29] ? rwsem_down_write_slowpath+0x48e/0x12a0 [ 287.242392][ T29] schedule+0xe7/0x1b0 [ 287.246905][ T29] schedule_preempt_disabled+0x13/0x20 [ 287.252995][ T29] rwsem_down_write_slowpath+0x53d/0x12a0 [ 287.258905][ T29] ? down_timeout+0x90/0x90 [ 287.263512][ T29] ? lock_sync+0x190/0x190 [ 287.268349][ T29] ? preempt_count_sub+0x150/0x150 [ 287.275266][ T29] down_write+0x1d3/0x200 [ 287.281704][ T29] ? rwsem_down_write_slowpath+0x12a0/0x12a0 [ 287.287810][ T29] blkdev_fallocate+0x1e9/0x450 [ 287.293132][ T29] ? file_to_blk_mode+0x130/0x130 [ 287.298766][ T29] vfs_fallocate+0x46c/0xe80 [ 287.303867][ T29] __x64_sys_fallocate+0xd5/0x140 [ 287.309373][ T29] do_syscall_64+0x38/0xb0 [ 287.314271][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 287.320756][ T29] RIP: 0033:0x7f419c8c0b29 [ 287.325552][ T29] RSP: 002b:00007ffff0e81328 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 287.334442][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f419c8c0b29 [ 287.342522][ T29] RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004 [ 287.350569][ T29] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 287.358628][ T29] R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000001 [ 287.367006][ T29] R13: 00007ffff0e81548 R14: 00007ffff0e81350 R15: 00007ffff0e81340 [ 287.375432][ T29] [ 287.378941][ T29] [ 287.378941][ T29] Showing all locks held in the system: [ 287.387225][ T29] 1 lock held by khungtaskd/29: [ 287.392520][ T29] #0: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 [ 287.403002][ T29] 1 lock held by klogd/4484: [ 287.408070][ T29] #0: ffff8880b993c718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 [ 287.418585][ T29] 2 locks held by getty/4801: [ 287.423305][ T29] #0: ffff888025fe90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 [ 287.433262][ T29] #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc5/0x1480 [ 287.443923][ T29] 1 lock held by syz-executor186/5053: [ 287.449887][ T29] #0: ffff88801b0714c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 287.461006][ T29] 1 lock held by syz-executor186/5055: [ 287.466886][ T29] 1 lock held by syz-executor186/5057: [ 287.472428][ T29] #0: ffff88801b0714c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 287.483699][ T29] 1 lock held by syz-executor186/5058: [ 287.489643][ T29] #0: ffff88801b0714c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 287.500796][ T29] 1 lock held by syz-executor186/5060: [ 287.506642][ T29] #0: ffff88801b0714c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 287.517383][ T29] 1 lock held by syz-executor186/5078: [ 287.522870][ T29] #0: ffff88801b0714c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 [ 287.534047][ T29] [ 287.536765][ T29] ============================================= [ 287.536765][ T29] [ 287.545853][ T29] NMI backtrace for cpu 0 [ 287.550191][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc6-syzkaller-00029-g213f891525c2 #0 [ 287.559991][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 287.570042][ T29] Call Trace: [ 287.573322][ T29] [ 287.576268][ T29] dump_stack_lvl+0xd9/0x1b0 [ 287.580955][ T29] nmi_cpu_backtrace+0x277/0x380 [ 287.585915][ T29] ? lapic_can_unplug_cpu+0xa0/0xa0 [ 287.591144][ T29] nmi_trigger_cpumask_backtrace+0x299/0x300 [ 287.597163][ T29] watchdog+0xf87/0x1210 [ 287.601464][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 287.607472][ T29] ? lockdep_hardirqs_on+0x7d/0x100 [ 287.612705][ T29] ? __kthread_parkme+0x14b/0x220 [ 287.617749][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 287.623749][ T29] kthread+0x33c/0x440 [ 287.627839][ T29] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.633053][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 287.638711][ T29] ret_from_fork+0x45/0x80 [ 287.643178][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 287.648838][ T29] ret_from_fork_asm+0x11/0x20 [ 287.653659][ T29] [ 287.656789][ T29] Sending NMI from CPU 0 to CPUs 1: [ 287.662306][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x1b/0x20 [ 287.663760][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 287.678760][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc6-syzkaller-00029-g213f891525c2 #0 [ 287.688570][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 287.698626][ T29] Call Trace: [ 287.701918][ T29] [ 287.704853][ T29] dump_stack_lvl+0xd9/0x1b0 [ 287.709453][ T29] panic+0x6a6/0x750 [ 287.713381][ T29] ? panic_smp_self_stop+0xa0/0xa0 [ 287.718511][ T29] ? lapic_can_unplug_cpu+0xa0/0xa0 [ 287.723726][ T29] ? preempt_schedule_thunk+0x1a/0x30 [ 287.729112][ T29] ? watchdog+0xd3e/0x1210 [ 287.733547][ T29] watchdog+0xd4f/0x1210 [ 287.737793][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 287.743778][ T29] ? lockdep_hardirqs_on+0x7d/0x100 [ 287.748993][ T29] ? __kthread_parkme+0x14b/0x220 [ 287.754037][ T29] ? proc_dohung_task_timeout_secs+0x90/0x90 [ 287.760019][ T29] kthread+0x33c/0x440 [ 287.764101][ T29] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.769305][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 287.774964][ T29] ret_from_fork+0x45/0x80 [ 287.779412][ T29] ? kthread_complete_and_exit+0x40/0x40 [ 287.785067][ T29] ret_from_fork_asm+0x11/0x20 [ 287.789869][ T29] [ 287.793161][ T29] Kernel Offset: disabled [ 287.797503][ T29] Rebooting in 86400 seconds..