./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3407667907 <...> Warning: Permanently added '10.128.10.43' (ED25519) to the list of known hosts. execve("./syz-executor3407667907", ["./syz-executor3407667907"], 0x7ffe4afcbc30 /* 10 vars */) = 0 brk(NULL) = 0x5555857b4000 brk(0x5555857b4d00) = 0x5555857b4d00 arch_prctl(ARCH_SET_FS, 0x5555857b4380) = 0 set_tid_address(0x5555857b4650) = 5831 set_robust_list(0x5555857b4660, 24) = 0 rseq(0x5555857b4ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3407667907", 4096) = 28 getrandom("\xe1\x34\xec\xce\xb1\xfe\x32\xbd", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555857b4d00 brk(0x5555857d5d00) = 0x5555857d5d00 brk(0x5555857d6000) = 0x5555857d6000 mprotect(0x7f95130c0000, 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./strace-static-x86_64: Process 5832 attached [pid 5832] set_robust_list(0x5555857b4660, 24 [pid 5831] <... clone resumed>, child_tidptr=0x5555857b4650) = 5832 [pid 5832] <... set_robust_list resumed>) = 0 [pid 5831] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "10000000000", 11) = 11 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "20", 2) = 2 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "1", 1) = 1 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "0", 1) = 1 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "0", 1) = 1 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "1", 1) = 1 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "100", 3) = 3 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "0", 1) = 1 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "0", 1) = 1 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "7 4 1 3", 7) = 7 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "1", 1) = 1 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "1", 1) = 1 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "0", 1) = 1 [pid 5831] close(3) = 0 [pid 5831] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "5832", 4) = 4 [pid 5831] close(3) = 0 [pid 5831] kill(5832, SIGKILL) = 0 [pid 5832] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5832, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached , child_tidptr=0x5555857b4650) = 5833 [pid 5833] set_robust_list(0x5555857b4660, 24) = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5833] setpgid(0, 0) = 0 [pid 5833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1000", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] write(1, "executing program\n", 18executing program ) = 18 [pid 5833] memfd_create("syzkaller", 0) = 3 [pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f950aa00000 [pid 5833] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5833] munmap(0x7f950aa00000, 138412032) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5833] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5833] close(3) = 0 [pid 5833] close(4) = 0 [pid 5833] mkdir("./file1", 0777) = 0 [ 122.765816][ T5833] loop0: detected capacity change from 0 to 32768 [ 122.818150][ T5833] bcachefs (/dev/loop0): error reading default superblock: checksum error, type none: got should be [ 122.869299][ T5833] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,version_upgrade=none [ 122.884304][ T5833] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 122.892570][ T5833] bcachefs (loop0): insufficient writeable journal devices available: have 0, need 1 [ 122.892570][ T5833] rw journal devs: [ 122.920955][ T5833] bcachefs (loop0): accounting_read... done [ 122.928436][ T5833] bcachefs (loop0): alloc_read... done [ 122.934130][ T5833] bcachefs (loop0): stripes_read... done [ 122.939880][ T5833] bcachefs (loop0): snapshots_read... done [ 122.948453][ T5833] bcachefs (loop0): journal_replay... done [ 122.954445][ T5833] bcachefs (loop0): resume_logged_ops... done [ 122.960636][ T5833] bcachefs (loop0): delete_dead_inodes... done [pid 5833] mount("/dev/loop0", "./file1", "bcachefs", MS_STRICTATIME, "errors=continue,errors=fix_safe,journal_transaction_names,version_upgrade=none,smackfshat=*,obj_type"...) = 0 [pid 5833] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5833] chdir("./file1") = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 122.967637][ T5833] bcachefs (loop0): going read-write [ 122.979224][ T5842] bcachefs (loop0 inum 4099 offset 0): __bch2_write(): move error: insufficient_devices [ 122.980859][ T5833] bcachefs (loop0): done starting filesystem [ 122.992486][ T5842] bcachefs (loop0 inum 536870913 offset 0): __bch2_write(): move error: insufficient_devices [pid 5833] ioctl(4, LOOP_CLR_FD) = 0 [pid 5833] close(4) = 0 [pid 5833] open("./file1", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 5833] ftruncate(4, 33587196) = -1 EROFS (Read-only file system) [pid 5833] memfd_create("syzkaller", 0) = 5 [pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f950aa00000 [ 123.070980][ T29] audit: type=1800 audit(1736103720.158:2): pid=5833 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor340" name="file1" dev="loop0" ino=536870912 res=0 errno=0 [pid 5833] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5833] munmap(0x7f950aa00000, 138412032) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5833] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5833] ioctl(6, LOOP_CLR_FD) = 0 [pid 5833] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5833] close(6) = 0 [pid 5833] close(5) = 0 [pid 5833] truncate("./file1", 46909 [pid 5831] kill(-5833, SIGKILL) = 0 [pid 5831] kill(5833, SIGKILL) = 0 [pid 5831] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5831] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5831] getdents64(3, 0x5555857b56f0 /* 2 entries */, 32768) = 48 [pid 5831] getdents64(3, 0x5555857b56f0 /* 0 entries */, 32768) = 0 [pid 5831] close(3) = 0 [ 153.805448][ T5833] Allocator stuck? Waited for 30 seconds [ 153.805474][ T5833] Allocator debug: [ 153.805483][ T5833] capacity1536 [ 153.805492][ T5833] reserved 31232 [ 153.805501][ T5833] hidden 0 [ 153.805509][ T5833] btree 0 [ 153.805518][ T5833] data 0 [ 153.805527][ T5833] cached 0 [ 153.805542][ T5833] reserved 0 [ 153.805551][ T5833] online_reserved 768 [ 153.805560][ T5833] nr_inodes 0 [ 153.805568][ T5833] [ 153.805582][ T5833] freelist_wait waiting [ 153.805591][ T5833] open buckets allocated1 [ 153.805600][ T5833] open buckets total 1024 [ 153.805609][ T5833] open_buckets_wait empty [ 153.805622][ T5833] open_buckets_btree 0 [ 153.805631][ T5833] open_buckets_user 0 [ 153.805645][ T5833] btree reserve cache 0 [ 153.805654][ T5833] [ 153.805662][ T5833] Dev 0: [ 153.805670][ T5833] buckets sectors fragmented [ 153.805681][ T5833] free 0 0 0 [ 153.805696][ T5833] sb 0 0 0 [ 153.805706][ T5833] journal 0 0 0 [ 153.805716][ T5833] btree 0 0 0 [ 153.805727][ T5833] user 0 0 0 [ 153.805737][ T5833] cached 0 0 0 [ 153.805747][ T5833] parity 0 0 0 [ 153.805757][ T5833] stripe 0 0 0 [ 153.805768][ T5833] need_gc_gens 0 0 0 [ 153.805778][ T5833] need_discard 0 0 0 [ 153.805788][ T5833] unstriped 0 0 0 [ 153.805802][ T5833] capacity 128 [ 153.805811][ T5833] [ 153.805819][ T5833] reserves: [ 153.805828][ T5833] stripe 60 [ 153.805841][ T5833] normal 58 [ 153.805851][ T5833] copygc 56 [ 153.805859][ T5833] btree 28 [ 153.805868][ T5833] btree_copygc 0 [ 153.805877][ T5833] reclaim 0 [ 153.805886][ T5833] interior_updates 0 [ 153.805895][ T5833] [ 153.805903][ T5833] open buckets 0 [ 153.805912][ T5833] buckets to invalidate 0 [ 153.805921][ T5833] [ 153.805928][ T5833] Copygc debug: [ 153.805937][ T5833] running: 0 [ 153.805945][ T5833] copygc_wait:0 [ 153.805953][ T5833] copygc_wait_at:0 [ 153.805962][ T5833] Currently waiting for:0 B [ 153.805971][ T5833] Currently waiting since:640 KiB [ 153.805980][ T5833] Currently calculated wait:0 B [ 153.805989][ T5833] [ 153.805997][ T5833] Journal debug: [ 153.806005][ T5833] flags: replay_done,running,need_flush_write [ 153.806016][ T5833] dirty journal entries: 0/32768 [ 153.806025][ T5833] seq: 10 [ 153.806034][ T5833] seq_ondisk: 10 [ 153.806043][ T5833] last_seq: 11 [ 153.806052][ T5833] last_seq_ondisk: 11 [ 153.806061][ T5833] flushed_seq_ondisk: 10 [ 153.806070][ T5833] watermark: stripe [ 153.806079][ T5833] each entry reserved: 321 [ 153.806088][ T5833] nr flush writes: 0 [ 153.806097][ T5833] nr noflush writes: 0 [ 153.806106][ T5833] average write size: 0 B [ 153.806114][ T5833] nr direct reclaim: 0 [ 153.806123][ T5833] nr background reclaim: 0 [ 153.806132][ T5833] reclaim kicked: 0 [ 153.806141][ T5833] reclaim runs in: 0 ms [ 153.806155][ T5833] blocked: 0 [ 153.806164][ T5833] current entry sectors: 0 [ 153.806173][ T5833] current entry error: insufficient_devices [ 153.806183][ T5833] current entry: closed [ 153.806192][ T5833] unwritten entries: [ 153.806200][ T5833] last buf closed [ 153.806209][ T5833] space: [ 153.806217][ T5833] discarded 0:0 [ 153.806226][ T5833] clean ondisk 0:0 [ 153.806235][ T5833] clean 0:0 [ 153.806244][ T5833] total 0:0 [ 153.806253][ T5833] [ 306.114141][ T30] INFO: task syz-executor340:5833 blocked for more than 143 seconds. [ 306.122576][ T30] Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 306.130511][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 306.139411][ T30] task:syz-executor340 state:D stack:19248 pid:5833 tgid:5833 ppid:5831 flags:0x00004006 [ 306.149832][ T30] Call Trace: [ 306.153188][ T30] [ 306.156189][ T30] __schedule+0x17fb/0x4be0 [ 306.160863][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 306.166955][ T30] ? __pfx___schedule+0x10/0x10 [ 306.171882][ T30] ? __pfx_lock_release+0x10/0x10 [ 306.176984][ T30] ? bch2_print_allocator_stuck+0x165/0xcb0 [ 306.182958][ T30] ? bch2_print_allocator_stuck+0xc24/0xcb0 [ 306.189015][ T30] ? schedule+0x90/0x320 [ 306.193336][ T30] schedule+0x14b/0x320 [ 306.197593][ T30] __closure_sync+0x259/0x2f0 [ 306.202328][ T30] ? __closure_sync+0x149/0x2f0 [ 306.207448][ T30] ? __pfx___closure_sync+0x10/0x10 [ 306.212730][ T30] ? __bch2_wait_on_allocator+0x1d6/0x250 [ 306.218570][ T30] bch2_btree_update_start+0x11a2/0x14e0 [ 306.224318][ T30] ? bch2_btree_split_leaf+0x123/0x840 [ 306.229833][ T30] ? __pfx_bch2_btree_update_start+0x10/0x10 [ 306.235891][ T30] ? bch2_logged_op_start+0x181/0x310 [ 306.241366][ T30] ? __pfx_closure_sync_fn+0x10/0x10 [ 306.246815][ T30] ? __do_six_trylock+0x832/0x9f0 [ 306.251933][ T30] bch2_btree_split_leaf+0x123/0x840 [ 306.257348][ T30] ? __pfx___do_six_trylock+0x10/0x10 [ 306.262789][ T30] bch2_trans_commit_error+0x212/0x1380 [ 306.268514][ T30] ? bch2_logged_op_start+0x1c8/0x310 [ 306.274019][ T30] ? bch2_trans_lock_write+0x585/0xc60 [ 306.279511][ T30] ? six_unlock_ip+0x2ce/0x3e0 [ 306.284377][ T30] ? bch2_trans_unlock_write+0x892/0xce0 [ 306.290068][ T30] ? __pfx_bch2_trans_commit_error+0x10/0x10 [ 306.296164][ T30] ? bch2_trans_unlock_write+0xc2d/0xce0 [ 306.301867][ T30] ? bch2_btree_path_verify_locks+0x633/0x720 [ 306.308083][ T30] ? bch2_trans_verify_locks+0x339/0x3c0 [ 306.313820][ T30] __bch2_trans_commit+0x7ead/0x93c0 [ 306.319148][ T30] ? bch2_path_put+0x1a4/0x2150 [ 306.324121][ T30] ? __pfx___bch2_trans_commit+0x10/0x10 [ 306.329818][ T30] ? __asan_memset+0x23/0x50 [ 306.334497][ T30] bch2_logged_op_start+0x1c8/0x310 [ 306.339759][ T30] ? __pfx_bch2_logged_op_start+0x10/0x10 [ 306.345578][ T30] ? lockdep_init_map_type+0xa1/0x910 [ 306.351003][ T30] ? bch2_bkey_get_empty_slot+0x13a/0x500 [ 306.356809][ T30] ? unmap_mapping_range+0xf8/0x290 [ 306.362068][ T30] bch2_truncate+0x19e/0x2d0 [ 306.366978][ T30] ? __pfx_bch2_truncate+0x10/0x10 [ 306.372143][ T30] ? unmap_mapping_range+0xf8/0x290 [ 306.377464][ T30] ? truncate_setsize+0xcf/0xf0 [ 306.382412][ T30] bchfs_truncate+0x85f/0xc90 [ 306.387287][ T30] ? __pfx_bchfs_truncate+0x10/0x10 [ 306.392584][ T30] ? setattr_prepare+0x1f5/0xb20 [ 306.397645][ T30] ? bch2_setattr+0x1a4/0x220 [ 306.402398][ T30] ? __pfx_bch2_setattr+0x10/0x10 [ 306.407521][ T30] notify_change+0xbca/0xe90 [ 306.412177][ T30] do_truncate+0x220/0x310 [ 306.416684][ T30] ? __pfx_do_truncate+0x10/0x10 [ 306.421703][ T30] ? bpf_lsm_path_truncate+0x9/0x10 [ 306.427051][ T30] vfs_truncate+0x2e1/0x3b0 [ 306.431646][ T30] do_sys_truncate+0xdb/0x190 [ 306.436542][ T30] ? __pfx_do_sys_truncate+0x10/0x10 [ 306.441908][ T30] ? do_syscall_64+0x100/0x230 [ 306.446878][ T30] do_syscall_64+0xf3/0x230 [ 306.451486][ T30] ? clear_bhb_loop+0x35/0x90 [ 306.456317][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 306.462331][ T30] RIP: 0033:0x7f9513042249 [ 306.466868][ T30] RSP: 002b:00007ffc7951ae78 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 306.475371][ T30] RAX: ffffffffffffffda RBX: 00007f951308b12f RCX: 00007f9513042249 [ 306.483393][ T30] RDX: 00007f95130414a0 RSI: 000000000000b73d RDI: 0000000020000900 [ 306.491579][ T30] RBP: 0031656c69662f2e R08: 00000000000050ce R09: 00000000200051c0 [ 306.499719][ T30] R10: 00000000000050d2 R11: 0000000000000246 R12: 00007ffc7951aed0 [ 306.507817][ T30] R13: 00007ffc7951afb0 R14: 431bde82d7b634db R15: 00007f951308b01d [ 306.515896][ T30] [ 306.519011][ T30] [ 306.519011][ T30] Showing all locks held in the system: [ 306.526849][ T30] 1 lock held by khungtaskd/30: [ 306.531740][ T30] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 [ 306.541934][ T30] 2 locks held by getty/5579: [ 306.546851][ T30] #0: ffff88814d95b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 306.556979][ T30] #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 [ 306.567283][ T30] 5 locks held by syz-executor340/5833: [ 306.572858][ T30] #0: ffff88807bb0c420 (sb_writers#10){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 306.582583][ T30] #1: ffff88806fd48148 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: do_truncate+0x20c/0x310 [ 306.593279][ T30] #2: ffff88806ec80a38 (&c->snapshot_create_lock){.+.+}-{4:4}, at: bch2_truncate+0x166/0x2d0 [ 306.603761][ T30] #3: ffff88806ec84398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 [ 306.614612][ T30] #4: ffff88806eca66d0 (&c->gc_lock){.+.+}-{4:4}, at: bch2_btree_update_start+0x682/0x14e0 [ 306.624925][ T30] [ 306.627433][ T30] ============================================= [ 306.627433][ T30] [ 306.635951][ T30] NMI backtrace for cpu 1 [ 306.640315][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 306.651010][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 306.661356][ T30] Call Trace: [ 306.664645][ T30] [ 306.667587][ T30] dump_stack_lvl+0x241/0x360 [ 306.672287][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 306.677502][ T30] ? __pfx__printk+0x10/0x10 [ 306.682112][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 306.687150][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 306.692627][ T30] ? _printk+0xd5/0x120 [ 306.696796][ T30] ? __pfx__printk+0x10/0x10 [ 306.701404][ T30] ? __wake_up_klogd+0xcc/0x110 [ 306.706956][ T30] ? __pfx__printk+0x10/0x10 [ 306.711583][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 306.717588][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 306.723594][ T30] watchdog+0xff6/0x1040 [ 306.727882][ T30] ? watchdog+0x1ea/0x1040 [ 306.732319][ T30] ? __pfx_watchdog+0x10/0x10 [ 306.737018][ T30] kthread+0x2f0/0x390 [ 306.741129][ T30] ? __pfx_watchdog+0x10/0x10 [ 306.745905][ T30] ? __pfx_kthread+0x10/0x10 [ 306.750514][ T30] ret_from_fork+0x4b/0x80 [ 306.754946][ T30] ? __pfx_kthread+0x10/0x10 [ 306.759604][ T30] ret_from_fork_asm+0x1a/0x30 [ 306.764561][ T30] [ 306.767856][ T30] Sending NMI from CPU 1 to CPUs 0: [ 306.773245][ C0] NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x21/0x30 [ 306.774280][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 306.774299][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 306.774328][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 306.774344][ T30] Call Trace: [ 306.774355][ T30] [ 306.774365][ T30] dump_stack_lvl+0x241/0x360 [ 306.774405][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 306.774437][ T30] ? __pfx__printk+0x10/0x10 [ 306.774464][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 306.774500][ T30] ? vscnprintf+0x5d/0x90 [ 306.774610][ T30] panic+0x349/0x880 [ 306.774641][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 306.774673][ T30] ? __pfx_panic+0x10/0x10 [ 306.774699][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 306.774735][ T30] ? __irq_work_queue_local+0x137/0x410 [ 306.774764][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 306.774791][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 306.774820][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 306.774853][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 306.774886][ T30] watchdog+0x1035/0x1040 [ 306.774915][ T30] ? watchdog+0x1ea/0x1040 [ 306.774947][ T30] ? __pfx_watchdog+0x10/0x10 [ 306.774974][ T30] kthread+0x2f0/0x390 [ 306.775001][ T30] ? __pfx_watchdog+0x10/0x10 [ 306.775026][ T30] ? __pfx_kthread+0x10/0x10 [ 306.775054][ T30] ret_from_fork+0x4b/0x80 [ 306.775077][ T30] ? __pfx_kthread+0x10/0x10 [ 306.775106][ T30] ret_from_fork_asm+0x1a/0x30 [ 306.775164][ T30] [ 306.934827][ T30] Kernel Offset: disabled [ 306.939289][ T30] Rebooting in 86400 seconds..