./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor260195626 <...> Warning: Permanently added '10.128.10.19' (ED25519) to the list of known hosts. execve("./syz-executor260195626", ["./syz-executor260195626"], 0x7ffff3eb4510 /* 10 vars */) = 0 brk(NULL) = 0x555589279000 brk(0x555589279d00) = 0x555589279d00 arch_prctl(ARCH_SET_FS, 0x555589279380) = 0 set_tid_address(0x555589279650) = 5823 set_robust_list(0x555589279660, 24) = 0 rseq(0x555589279ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor260195626", 4096) = 27 getrandom("\x51\x55\x4d\xfa\xba\xde\x72\xa4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555589279d00 brk(0x55558929ad00) = 0x55558929ad00 brk(0x55558929b000) = 0x55558929b000 mprotect(0x7f95d4415000, 16384, 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 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 5825 attached [pid 5825] set_robust_list(0x555589279660, 24 [pid 5823] <... clone resumed>, child_tidptr=0x555589279650) = 5825 [pid 5825] <... set_robust_list resumed>) = 0 [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5825] setpgid(0, 0) = 0 [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5825] write(3, "1000", 4) = 4 [pid 5825] close(3) = 0 [pid 5825] write(1, "executing program\n", 18executing program ) = 18 [pid 5825] memfd_create("syzkaller", 0) = 3 [pid 5825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f95cbe00000 [pid 5825] 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 5825] munmap(0x7f95cbe00000, 138412032) = 0 [pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5825] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5825] close(3) = 0 [pid 5825] close(4) = 0 [pid 5825] mkdir("./file0", 0777) = 0 [ 86.345068][ T5825] loop0: detected capacity change from 0 to 32768 [ 86.434579][ T5825] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,background_compression=lz4,nojournal_transaction_names,version_upgrade=none [ 86.434579][ T5825] allowing incompatible features above 0.0: (unknown version) [ 86.461780][ T5825] bcachefs (loop0): recovering from clean shutdown, journal seq 13 [ 86.483766][ T5825] bcachefs (loop0): accounting_read... done [ 86.490527][ T5825] bcachefs (loop0): alloc_read... done [ 86.496301][ T5825] bcachefs (loop0): snapshots_read... done [ 86.504621][ T5825] bcachefs (loop0): going read-write [ 86.514685][ T5825] bcachefs (loop0): journal_replay... done [ 86.520941][ T5825] bcachefs (loop0): resume_logged_ops... done [ 86.527881][ T5825] bcachefs (loop0): delete_dead_inodes... done [pid 5825] mount("/dev/loop0", "./file0", "bcachefs", 0, "version_upgrade=none,background_compression=lz4,") = 0 [ 86.534461][ T5825] bcachefs (loop0): done starting filesystem [ 86.540791][ T5834] bcachefs (loop0): backpointer doesn't match extent it points to: [ 86.540814][ T5834] u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX [ 86.540830][ T5834] u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d compress lz4 ptr: 0:34:8 gen 0 [pid 5825] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5825] chdir("./file0") = 0 [pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5825] ioctl(4, LOOP_CLR_FD) = 0 [pid 5825] close(4) = 0 [ 86.540848][ T5834] u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing [pid 5825] mkdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 044 [pid 5823] kill(-5825, SIGKILL) = 0 [pid 5823] kill(5825, SIGKILL) = 0 [ 91.777466][ T24] cfg80211: failed to load regulatory.db [pid 5823] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5823] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5823] getdents64(3, 0x55558927a6f0 /* 2 entries */, 32768) = 48 [pid 5823] getdents64(3, 0x55558927a6f0 /* 0 entries */, 32768) = 0 [pid 5823] close(3) = 0 [ 118.026883][ T5825] Allocator stuck? Waited for 30 seconds [ 118.026908][ T5825] Allocator debug: [ 118.026918][ T5825] capacity1536 [ 118.026927][ T5825] reserved 31232 [ 118.026937][ T5825] hidden 0 [ 118.026947][ T5825] btree 0 [ 118.026956][ T5825] data 0 [ 118.026966][ T5825] cached 0 [ 118.026975][ T5825] reserved 0 [ 118.026985][ T5825] online_reserved 768 [ 118.026994][ T5825] nr_inodes 0 [ 118.027004][ T5825] [ 118.027012][ T5825] freelist_wait waiting [ 118.027022][ T5825] open buckets allocated1 [ 118.027031][ T5825] open buckets total 1024 [ 118.027041][ T5825] open_buckets_wait empty [ 118.027051][ T5825] open_buckets_btree 0 [ 118.027060][ T5825] open_buckets_user 0 [ 118.027069][ T5825] btree reserve cache 0 [ 118.027079][ T5825] [ 118.027087][ T5825] Dev 0: [ 118.027095][ T5825] buckets sectors fragmented [ 118.027106][ T5825] free 0 0 0 [ 118.027118][ T5825] sb 0 0 0 [ 118.027129][ T5825] journal 0 0 0 [ 118.027141][ T5825] btree 0 0 0 [ 118.027152][ T5825] user 0 0 0 [ 118.027163][ T5825] cached 0 0 0 [ 118.027174][ T5825] parity 0 0 0 [ 118.027185][ T5825] stripe 0 0 0 [ 118.027197][ T5825] need_gc_gens 0 0 0 [ 118.027208][ T5825] need_discard 0 0 0 [ 118.027219][ T5825] unstriped 0 0 0 [ 118.027231][ T5825] capacity 128 [ 118.027240][ T5825] [ 118.027249][ T5825] reserves: [ 118.027257][ T5825] stripe 60 [ 118.027267][ T5825] normal 58 [ 118.027277][ T5825] copygc 56 [ 118.027286][ T5825] btree 28 [ 118.027296][ T5825] btree_copygc 0 [ 118.027305][ T5825] reclaim 0 [ 118.027315][ T5825] interior_updates 0 [ 118.027324][ T5825] [ 118.027333][ T5825] open buckets 0 [ 118.027342][ T5825] buckets to invalidate 0 [ 118.027352][ T5825] [ 118.027360][ T5825] Copygc debug: [ 118.027369][ T5825] running: 1 [ 118.027378][ T5825] copygc_wait:0 [ 118.027387][ T5825] copygc_wait_at:0 [ 118.027396][ T5825] Currently waiting for:0 B [ 118.027406][ T5825] Currently waiting since:640 KiB [ 118.027423][ T5825] Currently calculated wait:0 B [ 118.027433][ T5825] [ 118.027441][ T5825] Journal debug: [ 118.027450][ T5825] flags: replay_done,running,may_skip_flush [ 118.027461][ T5825] dirty journal entries: 0/32768 [ 118.027471][ T5825] seq: 14 [ 118.027481][ T5825] seq_ondisk: 14 [ 118.027491][ T5825] last_seq: 15 [ 118.027500][ T5825] last_seq_ondisk: 14 [ 118.027510][ T5825] flushed_seq_ondisk: 14 [ 118.027520][ T5825] watermark: stripe [ 118.027530][ T5825] each entry reserved: 321 [ 118.027540][ T5825] nr flush writes: 1 [ 118.027549][ T5825] nr noflush writes: 0 [ 118.027559][ T5825] average write size: 1.27 KiB [ 118.027569][ T5825] free buf: 65536 [ 118.027579][ T5825] nr direct reclaim: 0 [ 118.027588][ T5825] nr background reclaim: 1 [ 118.027598][ T5825] reclaim kicked: 0 [ 118.027608][ T5825] reclaim runs in: 0 ms [ 118.027617][ T5825] blocked: 0 [ 118.027627][ T5825] current entry sectors: 256 [ 118.027637][ T5825] current entry error: (No error) [ 118.027647][ T5825] current entry: closed [ 118.027657][ T5825] unwritten entries: [ 118.027666][ T5825] last buf closed [ 118.027675][ T5825] space: [ 118.027684][ T5825] discarded 256:1536 [ 118.027694][ T5825] clean ondisk 256:1536 [ 118.027704][ T5825] clean 256:1536 [ 118.027714][ T5825] total 256:2048 [ 118.027724][ T5825] dev 0: [ 118.027732][ T5825] durability 1: [ 118.027741][ T5825] nr 8 [ 118.027751][ T5825] bucket size 256 [ 118.027761][ T5825] available 6:248 [ 118.027771][ T5825] discard_idx 0 [ 118.027780][ T5825] dirty_ondisk 0 (seq 14) [ 118.027790][ T5825] dirty_idx 0 (seq 14) [ 118.027800][ T5825] cur_idx 0 (seq 14) [ 118.027810][ T5825] replicas want 1 need 1 [ 286.335492][ T31] INFO: task syz-executor260:5825 blocked for more than 143 seconds. [ 286.343730][ T31] Not tainted 6.15.0-rc4-syzkaller-00052-g4f79eaa2ceac #0 [ 286.352210][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.361542][ T31] task:syz-executor260 state:D stack:21192 pid:5825 tgid:5825 ppid:5823 task_flags:0x400140 flags:0x00004006 [ 286.373846][ T31] Call Trace: [ 286.377370][ T31] [ 286.380340][ T31] __schedule+0x168f/0x4c70 [ 286.384901][ T31] ? schedule+0x165/0x360 [ 286.389575][ T31] ? __pfx___schedule+0x10/0x10 [ 286.394481][ T31] ? schedule+0x91/0x360 [ 286.399048][ T31] schedule+0x165/0x360 [ 286.403248][ T31] ? __closure_sync+0x113/0x220 [ 286.408449][ T31] __closure_sync+0x163/0x220 [ 286.413176][ T31] ? __pfx___closure_sync+0x10/0x10 [ 286.418698][ T31] ? __bch2_wait_on_allocator+0x1c7/0x240 [ 286.424472][ T31] bch2_btree_update_start+0x1193/0x14c0 [ 286.430431][ T31] ? bch2_btree_split_leaf+0x13c/0x8f0 [ 286.436148][ T31] ? __pfx_bch2_btree_update_start+0x10/0x10 [ 286.442168][ T31] ? stack_depot_save_flags+0x42b/0x910 [ 286.448013][ T31] ? __pfx_closure_sync_fn+0x10/0x10 [ 286.453361][ T31] ? bch2_mkdir+0x62/0xd0 [ 286.458009][ T31] ? vfs_mkdir+0x303/0x510 [ 286.462481][ T31] ? do_mkdirat+0x247/0x590 [ 286.467658][ T31] ? __x64_sys_mkdir+0x6c/0x80 [ 286.472467][ T31] ? do_syscall_64+0xf6/0x210 [ 286.477444][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.483563][ T31] bch2_btree_split_leaf+0x13c/0x8f0 [ 286.489179][ T31] bch2_trans_commit_error+0x1a8/0x1100 [ 286.494770][ T31] ? __bch2_create+0x887/0xb90 [ 286.499853][ T31] ? six_unlock_ip+0x302/0x430 [ 286.504660][ T31] ? __pfx_bch2_trans_commit_error+0x10/0x10 [ 286.510926][ T31] ? bch2_trans_verify_locks+0x31e/0x3c0 [ 286.516857][ T31] __bch2_trans_commit+0x779c/0x8ae0 [ 286.522213][ T31] ? __bch2_create+0x887/0xb90 [ 286.527303][ T31] ? __bch2_bkey_get_val_typed+0x279/0x390 [ 286.533166][ T31] ? __pfx___bch2_trans_commit+0x10/0x10 [ 286.539163][ T31] ? __bch2_bkey_get_val_typed+0x121/0x390 [ 286.545025][ T31] ? __pfx_bch2_subvol_is_ro_trans+0x10/0x10 [ 286.551330][ T31] ? from_kgid+0x1b0/0x650 [ 286.556019][ T31] ? bch2_subvolume_get+0x65/0x100 [ 286.561183][ T31] ? bch2_subvolume_get+0x7d/0x100 [ 286.566613][ T31] __bch2_create+0x887/0xb90 [ 286.571276][ T31] ? __pfx___bch2_create+0x10/0x10 [ 286.577155][ T31] ? smack_log+0xef/0x3f0 [ 286.581555][ T31] ? smk_tskacc+0x2fc/0x370 [ 286.586380][ T31] ? smack_inode_permission+0x28f/0x320 [ 286.591987][ T31] ? from_kgid+0x1b0/0x650 [ 286.596749][ T31] ? generic_permission+0x2e5/0x690 [ 286.602002][ T31] bch2_mkdir+0x62/0xd0 [ 286.606471][ T31] vfs_mkdir+0x303/0x510 [ 286.610766][ T31] do_mkdirat+0x247/0x590 [ 286.615133][ T31] ? __pfx_do_mkdirat+0x10/0x10 [ 286.620386][ T31] ? getname_flags+0x1e5/0x540 [ 286.625195][ T31] __x64_sys_mkdir+0x6c/0x80 [ 286.630103][ T31] do_syscall_64+0xf6/0x210 [ 286.634647][ T31] ? clear_bhb_loop+0x45/0xa0 [ 286.639671][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.645825][ T31] RIP: 0033:0x7f95d4392b19 [ 286.650291][ T31] RSP: 002b:00007ffc2bc15818 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 286.659052][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f95d4392b19 [ 286.667310][ T31] RDX: 0000000000000000 RSI: 0000000000000024 RDI: 0000200000000100 [ 286.676004][ T31] RBP: 00007f95d44155f0 R08: 000000000000f624 R09: 000055558927a4c0 [ 286.684155][ T31] R10: 00007ffc2bc156e0 R11: 0000000000000246 R12: 00007ffc2bc15840 [ 286.692896][ T31] R13: 00007ffc2bc15a68 R14: 431bde82d7b634db R15: 00007f95d43db03b [ 286.701194][ T31] [ 286.704919][ T31] [ 286.704919][ T31] Showing all locks held in the system: [ 286.712985][ T31] 1 lock held by khungtaskd/31: [ 286.718059][ T31] #0: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 286.728209][ T31] 2 locks held by getty/5580: [ 286.732927][ T31] #0: ffff8880355ca0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.743089][ T31] #1: ffffc90002ffe2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 286.753507][ T31] 5 locks held by syz-executor260/5825: [ 286.759283][ T31] #0: ffff88807c00c420 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 286.768716][ T31] #1: ffff888073ff0148 (&sb->s_type->i_mutex_key#14/1){+.+.}-{4:4}, at: filename_create+0x1f9/0x470 [ 286.779909][ T31] #2: ffff888073ff0530 (&inode->ei_update_lock){+.+.}-{4:4}, at: __bch2_create+0x2f2/0xb90 [ 286.790299][ T31] #3: ffff888074504228 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x806/0xda0 [ 286.801450][ T31] #4: ffff888074526590 (&c->gc_lock){.+.+}-{4:4}, at: bch2_btree_update_start+0x68f/0x14c0 [ 286.811846][ T31] 1 lock held by bch-copygc/loop/5834: [ 286.817551][ T31] [ 286.819899][ T31] ============================================= [ 286.819899][ T31] [ 286.828646][ T31] NMI backtrace for cpu 1 [ 286.828672][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc4-syzkaller-00052-g4f79eaa2ceac #0 PREEMPT(full) [ 286.828695][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 286.828707][ T31] Call Trace: [ 286.828715][ T31] [ 286.828723][ T31] dump_stack_lvl+0x189/0x250 [ 286.828752][ T31] ? __wake_up_klogd+0xd9/0x110 [ 286.828776][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 286.828803][ T31] ? __pfx__printk+0x10/0x10 [ 286.828846][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 286.828881][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 286.828916][ T31] ? _printk+0xcf/0x120 [ 286.828952][ T31] ? __pfx__printk+0x10/0x10 [ 286.828984][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.829018][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 286.829051][ T31] watchdog+0xfee/0x1030 [ 286.829076][ T31] ? watchdog+0x1de/0x1030 [ 286.829107][ T31] kthread+0x70e/0x8a0 [ 286.829133][ T31] ? __pfx_watchdog+0x10/0x10 [ 286.829155][ T31] ? __pfx_kthread+0x10/0x10 [ 286.829187][ T31] ? __pfx_kthread+0x10/0x10 [ 286.829207][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.829238][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.829259][ T31] ? __pfx_kthread+0x10/0x10 [ 286.829279][ T31] ret_from_fork+0x4b/0x80 [ 286.829297][ T31] ? __pfx_kthread+0x10/0x10 [ 286.829318][ T31] ret_from_fork_asm+0x1a/0x30 [ 286.829363][ T31] [ 286.829371][ T31] Sending NMI from CPU 1 to CPUs 0: [ 286.976718][ C0] NMI backtrace for cpu 0 [ 286.976734][ C0] CPU: 0 UID: 0 PID: 82 Comm: kworker/u8:4 Not tainted 6.15.0-rc4-syzkaller-00052-g4f79eaa2ceac #0 PREEMPT(full) [ 286.976753][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 286.976764][ C0] Workqueue: events_unbound toggle_allocation_gate [ 286.976794][ C0] RIP: 0010:lock_acquire+0x70/0x360 [ 286.976817][ C0] Code: f8 08 0f 83 b8 01 00 00 89 c0 48 0f a3 05 b8 9d df 0d 73 16 e8 e1 d9 08 00 84 c0 75 0d f6 05 6a 9b c9 0d 01 0f 84 d7 01 00 00 <83> 3d 79 cc df 0d 00 0f 84 f0 00 00 00 48 8b b4 24 90 00 00 00 4c [ 286.976830][ C0] RSP: 0018:ffffc900015d7618 EFLAGS: 00000202 [ 286.976844][ C0] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 5d7274cb04476500 [ 286.976854][ C0] RDX: 0000000000000000 RSI: ffffffff8bc0fa40 RDI: ffffffff8bc0fa00 [ 286.976865][ C0] RBP: ffffffff820cedc6 R08: 0000000000000001 R09: 0000000000000000 [ 286.976875][ C0] R10: 0000000000000000 R11: ffffffff820ce6f9 R12: 0000000000000000 [ 286.976885][ C0] R13: ffff88801a07b078 R14: 0000000000000000 R15: 0000000000000001 [ 286.976895][ C0] FS: 0000000000000000(0000) GS:ffff888126100000(0000) knlGS:0000000000000000 [ 286.976908][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.976919][ C0] CR2: 000055feec6e4600 CR3: 000000000dd36000 CR4: 00000000003526f0 [ 286.976933][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 286.976942][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 286.976952][ C0] Call Trace: [ 286.976959][ C0] [ 286.976969][ C0] ? rcu_is_watching+0x15/0xb0 [ 286.976995][ C0] _raw_spin_lock+0x2e/0x40 [ 286.977019][ C0] ? __pte_offset_map_lock+0x106/0x1e0 [ 286.977054][ C0] __pte_offset_map_lock+0x106/0x1e0 [ 286.977078][ C0] ? __kmalloc_cache_noprof+0x83/0x3d0 [ 286.977100][ C0] __text_poke+0x29c/0xbf0 [ 286.977122][ C0] ? __kmalloc_node_track_caller_noprof+0xe7/0x4e0 [ 286.977144][ C0] ? __pfx_text_poke_memcpy+0x10/0x10 [ 286.977164][ C0] ? __pfx___text_poke+0x10/0x10 [ 286.977190][ C0] text_poke_bp_batch+0x76b/0x940 [ 286.977218][ C0] ? kmem_cache_alloc_bulk_noprof+0x149/0x790 [ 286.977242][ C0] ? __pfx_text_poke_bp_batch+0x10/0x10 [ 286.977262][ C0] ? text_poke_queue+0x140/0x190 [ 286.977283][ C0] ? arch_jump_label_transform_queue+0x97/0x110 [ 286.977311][ C0] text_poke_finish+0x30/0x50 [ 286.977330][ C0] arch_jump_label_transform_apply+0x1c/0x30 [ 286.977352][ C0] static_key_enable_cpuslocked+0x128/0x250 [ 286.977374][ C0] static_key_enable+0x1a/0x20 [ 286.977392][ C0] toggle_allocation_gate+0xad/0x240 [ 286.977414][ C0] ? __pfx_toggle_allocation_gate+0x10/0x10 [ 286.977436][ C0] ? process_scheduled_works+0x9ec/0x17a0 [ 286.977462][ C0] ? process_scheduled_works+0x9ec/0x17a0 [ 286.977501][ C0] ? process_scheduled_works+0x9ec/0x17a0 [ 286.977524][ C0] process_scheduled_works+0xadb/0x17a0 [ 286.977561][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 286.977592][ C0] worker_thread+0x8a0/0xda0 [ 286.977629][ C0] kthread+0x70e/0x8a0 [ 286.977648][ C0] ? __pfx_worker_thread+0x10/0x10 [ 286.977671][ C0] ? __pfx_kthread+0x10/0x10 [ 286.977687][ C0] ? __pfx_kthread+0x10/0x10 [ 286.977703][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.977727][ C0] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.977744][ C0] ? __pfx_kthread+0x10/0x10 [ 286.977759][ C0] ret_from_fork+0x4b/0x80 [ 286.977773][ C0] ? __pfx_kthread+0x10/0x10 [ 286.977789][ C0] ret_from_fork_asm+0x1a/0x30 [ 286.977821][ C0] [ 286.977828][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.111 msecs [ 286.978751][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 286.978770][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc4-syzkaller-00052-g4f79eaa2ceac #0 PREEMPT(full) [ 286.978796][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 286.978809][ T31] Call Trace: [ 286.978818][ T31] [ 286.978828][ T31] dump_stack_lvl+0x99/0x250 [ 286.978859][ T31] ? __asan_memcpy+0x40/0x70 [ 286.978887][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 286.978917][ T31] ? __pfx__printk+0x10/0x10 [ 286.978969][ T31] panic+0x2db/0x790 [ 286.979004][ T31] ? __pfx_panic+0x10/0x10 [ 286.979031][ T31] ? __pfx_delay_tsc+0x10/0x10 [ 286.979060][ T31] ? nmi_backtrace_stall_check+0x433/0x440 [ 286.979087][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 286.979118][ T31] ? nmi_trigger_cpumask_backtrace+0x2b6/0x300 [ 286.979158][ T31] watchdog+0x102d/0x1030 [ 286.979187][ T31] ? watchdog+0x1de/0x1030 [ 286.979220][ T31] kthread+0x70e/0x8a0 [ 286.979247][ T31] ? __pfx_watchdog+0x10/0x10 [ 286.979271][ T31] ? __pfx_kthread+0x10/0x10 [ 286.979295][ T31] ? __pfx_kthread+0x10/0x10 [ 286.979318][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.979352][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.979375][ T31] ? __pfx_kthread+0x10/0x10 [ 286.979397][ T31] ret_from_fork+0x4b/0x80 [ 286.979417][ T31] ? __pfx_kthread+0x10/0x10 [ 286.979440][ T31] ret_from_fork_asm+0x1a/0x30 [ 286.979487][ T31] [ 287.469592][ T31] Kernel Offset: disabled [ 287.473920][ T31] Rebooting in 86400 seconds..