./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1544235587 <...> Warning: Permanently added '10.128.0.175' (ED25519) to the list of known hosts. execve("./syz-executor1544235587", ["./syz-executor1544235587"], 0x7ffd7dc7cc60 /* 10 vars */) = 0 brk(NULL) = 0x55558d9b9000 brk(0x55558d9b9d00) = 0x55558d9b9d00 arch_prctl(ARCH_SET_FS, 0x55558d9b9380) = 0 set_tid_address(0x55558d9b9650) = 5084 set_robust_list(0x55558d9b9660, 24) = 0 rseq(0x55558d9b9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1544235587", 4096) = 28 getrandom("\x69\xb1\x59\x7c\x33\x93\xdf\xcb", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558d9b9d00 brk(0x55558d9dad00) = 0x55558d9dad00 brk(0x55558d9db000) = 0x55558d9db000 mprotect(0x7f950fe94000, 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 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 5085 attached , child_tidptr=0x55558d9b9650) = 5085 [pid 5085] set_robust_list(0x55558d9b9660, 24) = 0 [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5085] setpgid(0, 0) = 0 [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "1000", 4) = 4 [pid 5085] close(3) = 0 [pid 5085] write(1, "executing program\n", 18executing program ) = 18 [pid 5085] memfd_create("syzkaller", 0) = 3 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9507800000 [pid 5085] 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 5085] munmap(0x7f9507800000, 138412032) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5085] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5085] close(3) = 0 [pid 5085] close(4) = 0 [pid 5085] mkdir("./bus", 0777) = 0 [ 80.333306][ T5085] loop0: detected capacity change from 0 to 32768 [ 80.438750][ T5085] bcachefs (loop0): mounting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,journal_flush_delay=1311720,journal_reclaim_delay=1000,nocow [ 80.456003][ T5085] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [pid 5085] mount("/dev/loop0", "./bus", "bcachefs", MS_NODEV|MS_SYNCHRONOUS|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5085] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5085] chdir("./bus") = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5085] ioctl(4, LOOP_CLR_FD) = 0 [ 80.481508][ T5085] bcachefs (loop0): alloc_read... done [ 80.487458][ T5085] bcachefs (loop0): stripes_read... done [ 80.493363][ T5085] bcachefs (loop0): snapshots_read... done [ 80.502895][ T5085] bcachefs (loop0): journal_replay... done [ 80.508793][ T5085] bcachefs (loop0): resume_logged_ops... done [ 80.515279][ T5085] bcachefs (loop0): going read-write [ 80.524981][ T5085] bcachefs (loop0): done starting filesystem [pid 5085] close(4) = 0 [pid 5085] creat("./bus", 000) = 4 [pid 5085] lseek(4, 32767, SEEK_SET) = 32767 [pid 5085] creat("./bus", 000) = 5 [pid 5085] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000) = 6 [pid 5085] ftruncate(5, 31) = 0 [pid 5085] open("./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOFOLLOW|O_NOATIME, 000) = 7 [pid 5085] write(5, "\x74\x68\x72\x65\x61\x64\x65\x64\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"..., 392007683 [pid 5084] kill(-5085, SIGKILL) = 0 [pid 5084] kill(5085, SIGKILL) = 0 [pid 5084] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5084] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5084] getdents64(3, 0x55558d9ba6f0 /* 2 entries */, 32768) = 48 [pid 5084] getdents64(3, 0x55558d9ba6f0 /* 0 entries */, 32768) = 0 [pid 5084] close(3) = 0 [ 91.652072][ T5085] Allocator stuck? Waited for 10 seconds [ 91.652101][ T5085] Allocator debug: [ 91.652108][ T5085] hidden8448 [ 91.652115][ T5085] btree 3072 [ 91.652123][ T5085] data 4128 [ 91.652130][ T5085] cached 0 [ 91.652137][ T5085] reserved 0 [ 91.652144][ T5085] online_reserved 28664 [ 91.652152][ T5085] nr_inodes 9 [ 91.652159][ T5085] [ 91.652165][ T5085] freelist_wait waiting [ 91.652173][ T5085] open buckets allocated9 [ 91.652180][ T5085] open buckets total 1024 [ 91.652189][ T5085] open_buckets_wait empty [ 91.652196][ T5085] open_buckets_btree 2 [ 91.652204][ T5085] open_buckets_user 6 [ 91.652211][ T5085] btree reserve cache 2 [ 91.652218][ T5085] [ 91.652224][ T5085] Dev 0: [ 91.652230][ T5085] buckets sectors fragmented [ 91.652239][ T5085] free 66 0 0 [ 91.652248][ T5085] sb 25 6152 248 [ 91.652257][ T5085] journal 8 2048 0 [ 91.652266][ T5085] btree 12 3072 0 [ 91.652275][ T5085] user 17 4128 224 [ 91.652284][ T5085] cached 0 0 0 [ 91.652292][ T5085] parity 0 0 0 [ 91.652301][ T5085] stripe 0 0 0 [ 91.652310][ T5085] need_gc_gens 0 0 0 [ 91.652319][ T5085] need_discard 0 0 0 [ 91.652327][ T5085] [ 91.652334][ T5085] reserves: [ 91.652340][ T5085] stripe 60 [ 91.652348][ T5085] normal 58 [ 91.652356][ T5085] copygc 56 [ 91.652363][ T5085] btree 28 [ 91.652371][ T5085] btree_copygc 0 [ 91.652378][ T5085] reclaim 0 [ 91.652386][ T5085] interior_updates 0 [ 91.652393][ T5085] [ 91.652399][ T5085] open buckets 8 [ 91.652407][ T5085] buckets to invalidate 0 [ 91.652414][ T5085] [ 91.652420][ T5085] Copygc debug: [ 91.652427][ T5085] Currently waiting for: 144 KiB [ 91.652441][ T5085] Currently waiting since: 0 B [ 91.652448][ T5085] Currently calculated wait: 0 B [ 91.652456][ T5085] [ 91.652462][ T5085] Journal debug: [ 91.652469][ T5085] flags: replay_done,running,may_skip_flush,need_flush_write [ 91.652477][ T5085] dirty journal entries:1/32768 [ 91.652484][ T5085] seq: 11 [ 91.652491][ T5085] seq_ondisk:10 [ 91.652498][ T5085] last_seq:11 [ 91.652505][ T5085] last_seq_ondisk:11 [ 91.652511][ T5085] flushed_seq_ondisk:10 [ 91.652519][ T5085] watermark:stripe [ 91.652525][ T5085] each entry reserved:361 [ 91.652533][ T5085] nr flush writes:0 [ 91.652539][ T5085] nr noflush writes:0 [ 91.652546][ T5085] average write size:0 B [ 91.652553][ T5085] nr direct reclaim:0 [ 91.652560][ T5085] nr background reclaim:10 [ 91.652567][ T5085] reclaim kicked:0 [ 91.652574][ T5085] reclaim runs in:190 ms [ 91.652581][ T5085] blocked: 0 [ 91.652588][ T5085] current entry sectors:256 [ 91.652595][ T5085] current entry error:ok [ 91.652602][ T5085] current entry:2170/7824 [ 91.652609][ T5085] unwritten entries: [ 91.652616][ T5085] seq: 11 [ 91.652623][ T5085] refcount:1 [ 91.652629][ T5085] size: 112 B [ 91.652636][ T5085] expires:130064 jiffies [ 91.652643][ T5085] flags: need_flush_to_write_buffer [ 91.652651][ T5085] last buf open [ 91.652658][ T5085] space: [ 91.652664][ T5085] discarded256:1792 [ 91.652671][ T5085] clean ondisk256:1792 [ 91.652678][ T5085] clean 256:1792 [ 91.652685][ T5085] total 256:2048 [ 91.652692][ T5085] dev 0: [ 91.652698][ T5085] nr 8 [ 91.652705][ T5085] bucket size256 [ 91.652712][ T5085] available6:256 [ 91.652719][ T5085] discard_idx0 [ 91.652725][ T5085] dirty_ondisk0 (seq 0) [ 91.652733][ T5085] dirty_idx0 (seq 0) [ 91.652740][ T5085] cur_idx0 (seq 0) [ 91.652747][ T5085] [ 92.282781][ T58] cfg80211: failed to load regulatory.db [ 110.929334][ T11] bcachefs (loop0 inum 1073741825 offset 0): data data checksum error, type chacha20_poly1305_80: got 4e4875464441fb072ee2 should be 3f9e892ceabd1d47b0c2 [ 110.929960][ T2461] bcachefs (loop0 inum 1073741827 offset 0): data data checksum error, type chacha20_poly1305_80: got d7b7aa05396b21f13a2f should be 9894d374992ac97ed273 [ 110.946302][ T11] bcachefs (loop0 inum 1073741825 offset 0): no device to read from [ 110.960803][ T2461] bcachefs (loop0 inum 1073741827 offset 0): no device to read from [ 121.092341][ T1050] Allocator stuck? Waited for 10 seconds [ 121.092409][ T1050] Allocator debug: [ 121.092421][ T1050] hidden8448 [ 121.092431][ T1050] btree 3072 [ 121.092442][ T1050] data 4128 [ 121.092453][ T1050] cached 0 [ 121.092464][ T1050] reserved 0 [ 121.092475][ T1050] online_reserved 28664 [ 121.092486][ T1050] nr_inodes 9 [ 121.092498][ T1050] [ 121.092507][ T1050] freelist_wait waiting [ 121.092518][ T1050] open buckets allocated9 [ 121.092529][ T1050] open buckets total 1024 [ 121.092546][ T1050] open_buckets_wait empty [ 121.092557][ T1050] open_buckets_btree 2 [ 121.092567][ T1050] open_buckets_user 6 [ 121.093519][ T1050] btree reserve cache 2 [ 121.093535][ T1050] [ 121.093555][ T1050] Dev 0: [ 121.093566][ T1050] buckets sectors fragmented [ 121.093579][ T1050] free 66 0 0 [ 121.093593][ T1050] sb 25 6152 248 [ 121.093607][ T1050] journal 8 2048 0 [ 121.093620][ T1050] btree 12 3072 0 [ 121.093634][ T1050] user 17 4128 224 [ 121.093647][ T1050] cached 0 0 0 [ 121.093661][ T1050] parity 0 0 0 [ 121.093674][ T1050] stripe 0 0 0 [ 121.093688][ T1050] need_gc_gens 0 0 0 [ 121.093701][ T1050] need_discard 0 0 0 [ 121.093714][ T1050] [ 121.093724][ T1050] reserves: [ 121.093734][ T1050] stripe 60 [ 121.093746][ T1050] normal 58 [ 121.093758][ T1050] copygc 56 [ 121.093770][ T1050] btree 28 [ 121.093782][ T1050] btree_copygc 0 [ 121.093794][ T1050] reclaim 0 [ 121.093805][ T1050] interior_updates 0 [ 121.093817][ T1050] [ 121.093827][ T1050] open buckets 8 [ 121.093838][ T1050] buckets to invalidate 0 [ 121.093849][ T1050] [ 121.093859][ T1050] Copygc debug: [ 121.093870][ T1050] Currently waiting for: 0 B [ 121.093882][ T1050] Currently waiting since: 1.00 MiB [ 121.093894][ T1050] Currently calculated wait: 0 B [ 121.093906][ T1050] [ 121.093916][ T1050] Journal debug: [ 121.093927][ T1050] flags: replay_done,running,may_skip_flush,need_flush_write [ 121.093940][ T1050] dirty journal entries:1/32768 [ 121.093952][ T1050] seq: 11 [ 121.093962][ T1050] seq_ondisk:10 [ 121.093973][ T1050] last_seq:11 [ 121.093984][ T1050] last_seq_ondisk:11 [ 121.093995][ T1050] flushed_seq_ondisk:10 [ 121.094006][ T1050] watermark:stripe [ 121.094017][ T1050] each entry reserved:361 [ 121.094028][ T1050] nr flush writes:0 [ 121.094038][ T1050] nr noflush writes:0 [ 121.094049][ T1050] average write size:0 B [ 121.094060][ T1050] nr direct reclaim:0 [ 121.094070][ T1050] nr background reclaim:14 [ 121.094080][ T1050] reclaim kicked:0 [ 121.094090][ T1050] reclaim runs in:910 ms [ 121.094101][ T1050] blocked: 0 [ 121.094111][ T1050] current entry sectors:256 [ 121.094123][ T1050] current entry error:ok [ 121.094132][ T1050] current entry:2204/7824 [ 121.094139][ T1050] unwritten entries: [ 121.094146][ T1050] seq: 11 [ 121.094153][ T1050] refcount:1 [ 121.094160][ T1050] size: 112 B [ 121.094168][ T1050] expires:127120 jiffies [ 121.094175][ T1050] flags: need_flush_to_write_buffer [ 121.094183][ T1050] last buf open [ 121.094190][ T1050] space: [ 121.094197][ T1050] discarded256:1792 [ 121.094204][ T1050] clean ondisk256:1792 [ 121.094212][ T1050] clean 256:1792 [ 121.094219][ T1050] total 256:2048 [ 121.094226][ T1050] dev 0: [ 121.094233][ T1050] nr 8 [ 121.094240][ T1050] bucket size256 [ 121.094247][ T1050] available6:256 [ 121.094254][ T1050] discard_idx0 [ 121.094262][ T1050] dirty_ondisk0 (seq 0) [ 121.094269][ T1050] dirty_idx0 (seq 0) [ 121.094276][ T1050] cur_idx0 (seq 0) [ 121.094284][ T1050] [ 286.841741][ T30] INFO: task kworker/u8:6:1050 blocked for more than 143 seconds. [ 286.849760][ T30] Not tainted 6.10.0-rc6-syzkaller-00212-g1dd28064d416 #0 [ 286.857642][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.866485][ T30] task:kworker/u8:6 state:D stack:19096 pid:1050 tgid:1050 ppid:2 flags:0x00004000 [ 286.876991][ T30] Workqueue: writeback wb_workfn (flush-bcachefs-1) [ 286.883775][ T30] Call Trace: [ 286.887104][ T30] [ 286.890042][ T30] __schedule+0x1796/0x49d0 [ 286.894687][ T30] ? __pfx___schedule+0x10/0x10 [ 286.899593][ T30] ? __blk_flush_plug+0x449/0x500 [ 286.904736][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.910103][ T30] ? bch2_print_allocator_stuck+0x143/0xc80 [ 286.916196][ T30] ? kthread_data+0x52/0xd0 [ 286.920804][ T30] ? wq_worker_sleeping+0x66/0x240 [ 286.925937][ T30] ? schedule+0x90/0x320 [ 286.930181][ T30] schedule+0x14b/0x320 [ 286.934473][ T30] __closure_sync+0x259/0x2f0 [ 286.939196][ T30] ? __closure_sync+0x149/0x2f0 [ 286.944137][ T30] ? __pfx___closure_sync+0x10/0x10 [ 286.949376][ T30] __bch2_write+0x54a5/0x5c40 [ 286.954169][ T30] ? __pfx_validate_chain+0x10/0x10 [ 286.959417][ T30] ? cpufreq_update_util+0x94/0x250 [ 286.964707][ T30] ? mark_lock+0x9a/0x350 [ 286.969080][ T30] ? __pfx___bch2_write+0x10/0x10 [ 286.974244][ T30] ? bch2_write+0x1012/0x1670 [ 286.978960][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.984074][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.990099][ T30] ? do_raw_spin_unlock+0x13c/0x8b0 [ 286.995410][ T30] bch2_write+0x947/0x1670 [ 286.999873][ T30] ? __pfx_bch2_write+0x10/0x10 [ 287.004811][ T30] ? do_raw_spin_unlock+0x13c/0x8b0 [ 287.010047][ T30] ? folio_unlock+0x126/0x2f0 [ 287.014828][ T30] __bch2_writepage+0x1416/0x2b50 [ 287.019894][ T30] ? folio_clear_dirty_for_io+0x7e1/0xcf0 [ 287.025726][ T30] ? rcu_is_watching+0x15/0xb0 [ 287.030522][ T30] ? __pfx___bch2_writepage+0x10/0x10 [ 287.036032][ T30] write_cache_pages+0xd0/0x230 [ 287.041056][ T30] ? __pfx___bch2_writepage+0x10/0x10 [ 287.046552][ T30] ? __pfx_write_cache_pages+0x10/0x10 [ 287.052140][ T30] ? bch2_inode_opts_get+0x4dc/0x900 [ 287.057566][ T30] ? blk_start_plug+0x53/0x1b0 [ 287.062423][ T30] bch2_writepages+0x14f/0x380 [ 287.067311][ T30] ? __pfx_bch2_writepages+0x10/0x10 [ 287.072831][ T30] ? writeback_sb_inodes+0x478/0x1380 [ 287.078261][ T30] ? __pfx_bch2_writepages+0x10/0x10 [ 287.083721][ T30] do_writepages+0x359/0x870 [ 287.088363][ T30] ? __pfx_do_writepages+0x10/0x10 [ 287.093605][ T30] ? __pfx_lock_acquire+0x10/0x10 [ 287.098676][ T30] ? writeback_sb_inodes+0x5ea/0x1380 [ 287.104171][ T30] ? __pfx_lock_release+0x10/0x10 [ 287.109248][ T30] ? do_raw_spin_lock+0x14f/0x370 [ 287.114441][ T30] __writeback_single_inode+0x165/0x10b0 [ 287.120130][ T30] writeback_sb_inodes+0x99c/0x1380 [ 287.125458][ T30] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 287.131278][ T30] ? __pfx_down_read_trylock+0x10/0x10 [ 287.136768][ T30] ? __pfx_move_expired_inodes+0x10/0x10 [ 287.142535][ T30] ? do_raw_spin_lock+0x14f/0x370 [ 287.147614][ T30] __writeback_inodes_wb+0x11b/0x260 [ 287.153040][ T30] wb_writeback+0x495/0xd40 [ 287.157588][ T30] ? queue_io+0x3b1/0x5a0 [ 287.162056][ T30] ? __pfx_wb_writeback+0x10/0x10 [ 287.167118][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.173262][ T30] wb_workfn+0xba1/0x1090 [ 287.177642][ T30] ? __pfx_wb_workfn+0x10/0x10 [ 287.182573][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.188601][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.195432][ T30] ? process_scheduled_works+0x945/0x1830 [ 287.201520][ T30] process_scheduled_works+0xa2c/0x1830 [ 287.207148][ T30] ? __pfx_process_scheduled_works+0x10/0x10 [ 287.213473][ T30] ? assign_work+0x364/0x3d0 [ 287.218287][ T30] worker_thread+0x86d/0xd50 [ 287.223066][ T30] ? __kthread_parkme+0x169/0x1d0 [ 287.228146][ T30] ? __pfx_worker_thread+0x10/0x10 [ 287.233588][ T30] kthread+0x2f0/0x390 [ 287.237788][ T30] ? __pfx_worker_thread+0x10/0x10 [ 287.242977][ T30] ? __pfx_kthread+0x10/0x10 [ 287.247601][ T30] ret_from_fork+0x4b/0x80 [ 287.252157][ T30] ? __pfx_kthread+0x10/0x10 [ 287.256914][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.261872][ T30] [ 287.265399][ T30] INFO: task syz-executor154:5085 blocked for more than 143 seconds. [ 287.273615][ T30] Not tainted 6.10.0-rc6-syzkaller-00212-g1dd28064d416 #0 [ 287.281363][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.290070][ T30] task:syz-executor154 state:D stack:14320 pid:5085 tgid:5085 ppid:5084 flags:0x00004006 [ 287.300386][ T30] Call Trace: [ 287.303731][ T30] [ 287.306760][ T30] __schedule+0x1796/0x49d0 [ 287.311405][ T30] ? __pfx___schedule+0x10/0x10 [ 287.316288][ T30] ? __blk_flush_plug+0x449/0x500 [ 287.321609][ T30] ? __pfx_lock_release+0x10/0x10 [ 287.326689][ T30] ? bch2_print_allocator_stuck+0x143/0xc80 [ 287.332733][ T30] ? bch2_print_allocator_stuck+0x143/0xc80 [ 287.338667][ T30] ? bch2_printbuf_exit+0x6d/0xa0 [ 287.343778][ T30] ? schedule+0x90/0x320 [ 287.348138][ T30] schedule+0x14b/0x320 [ 287.352693][ T30] __closure_sync+0x259/0x2f0 [ 287.357410][ T30] ? __closure_sync+0x149/0x2f0 [ 287.362712][ T30] ? __pfx___closure_sync+0x10/0x10 [ 287.367959][ T30] __bch2_write+0x54a5/0x5c40 [ 287.372814][ T30] ? __pfx___bch2_write+0x10/0x10 [ 287.377919][ T30] ? ttwu_queue_wakelist+0x286/0x3b0 [ 287.383352][ T30] ? __pfx_lock_release+0x10/0x10 [ 287.388417][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.394547][ T30] ? do_raw_spin_unlock+0x13c/0x8b0 [ 287.399808][ T30] bch2_write+0x947/0x1670 [ 287.404461][ T30] ? __pfx_bch2_write+0x10/0x10 [ 287.409359][ T30] ? do_raw_spin_unlock+0x13c/0x8b0 [ 287.414876][ T30] ? folio_unlock+0x126/0x2f0 [ 287.419615][ T30] __bch2_writepage+0x1416/0x2b50 [ 287.424831][ T30] ? folio_clear_dirty_for_io+0x7e1/0xcf0 [ 287.430712][ T30] ? rcu_is_watching+0x15/0xb0 [ 287.435513][ T30] ? __pfx___bch2_writepage+0x10/0x10 [ 287.441046][ T30] write_cache_pages+0xd0/0x230 [ 287.445937][ T30] ? __pfx___bch2_writepage+0x10/0x10 [ 287.451421][ T30] ? __pfx_write_cache_pages+0x10/0x10 [ 287.456919][ T30] ? blk_start_plug+0x70/0x1b0 [ 287.461786][ T30] bch2_writepages+0x14f/0x380 [ 287.466584][ T30] ? __pfx_bch2_writepages+0x10/0x10 [ 287.471985][ T30] ? __lock_acquire+0x1346/0x1fd0 [ 287.477048][ T30] ? __pfx_bch2_writepages+0x10/0x10 [ 287.482459][ T30] do_writepages+0x359/0x870 [ 287.487089][ T30] ? __pfx_do_writepages+0x10/0x10 [ 287.492374][ T30] ? filemap_fdatawrite_wbc+0x11a/0x180 [ 287.497955][ T30] ? do_raw_spin_lock+0x14f/0x370 [ 287.503097][ T30] ? __pfx_lock_release+0x10/0x10 [ 287.508196][ T30] ? do_raw_spin_unlock+0x13c/0x8b0 [ 287.513533][ T30] ? wbc_attach_and_unlock_inode+0xbe/0x580 [ 287.519480][ T30] filemap_fdatawrite_wbc+0x125/0x180 [ 287.524970][ T30] file_write_and_wait_range+0x1aa/0x290 [ 287.530725][ T30] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 287.536953][ T30] ? up_write+0x1a9/0x590 [ 287.541377][ T30] ? __pfx_up_write+0x10/0x10 [ 287.546090][ T30] bch2_fsync+0x93/0x130 [ 287.550432][ T30] bch2_write_iter+0x262e/0x2840 [ 287.555517][ T30] ? __pfx_bch2_write_iter+0x10/0x10 [ 287.560923][ T30] ? rcu_read_lock_any_held+0xb7/0x160 [ 287.566506][ T30] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 287.572507][ T30] vfs_write+0xa72/0xc90 [ 287.576792][ T30] ? __pfx_bch2_write_iter+0x10/0x10 [ 287.582191][ T30] ? __pfx_vfs_write+0x10/0x10 [ 287.587019][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 287.592717][ T30] ksys_write+0x1a0/0x2c0 [ 287.597090][ T30] ? __pfx_ksys_write+0x10/0x10 [ 287.602040][ T30] ? do_syscall_64+0x100/0x230 [ 287.606870][ T30] do_syscall_64+0xf3/0x230 [ 287.611586][ T30] ? clear_bhb_loop+0x35/0x90 [ 287.616305][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.622312][ T30] RIP: 0033:0x7f950fe0fb59 [ 287.626792][ T30] RSP: 002b:00007ffed502e5b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 287.635329][ T30] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f950fe0fb59 [ 287.643460][ T30] RDX: 00000000175d9003 RSI: 0000000020000200 RDI: 0000000000000005 [ 287.651544][ T30] RBP: 00007f950fe945f0 R08: 000055558d9ba4c0 R09: 000055558d9ba4c0 [ 287.659560][ T30] R10: 000055558d9ba4c0 R11: 0000000000000246 R12: 00007ffed502e5e0 [ 287.667616][ T30] R13: 00007ffed502e808 R14: 431bde82d7b634db R15: 00007f950fe5803b [ 287.676329][ T30] [ 287.679496][ T30] [ 287.679496][ T30] Showing all locks held in the system: [ 287.687310][ T30] 1 lock held by khungtaskd/30: [ 287.692247][ T30] #0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 287.702448][ T30] 3 locks held by kworker/u8:6/1050: [ 287.707773][ T30] #0: ffff888017a82148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 287.719117][ T30] #1: ffffc900043d7d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 287.731705][ T30] #2: ffff88807c9260e0 (&type->s_umount_key#44){.+.+}-{3:3}, at: super_trylock_shared+0x22/0xf0 [ 287.742406][ T30] 1 lock held by klogd/4525: [ 287.747106][ T30] #0: ffff8880b953e758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 287.757171][ T30] 2 locks held by getty/4843: [ 287.761905][ T30] #0: ffff88802a7c40a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.771890][ T30] #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 287.782316][ T30] 1 lock held by syz-executor154/5085: [ 287.787826][ T30] #0: ffff88807c926420 (sb_writers#9){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 287.796958][ T30] [ 287.799343][ T30] ============================================= [ 287.799343][ T30] [ 287.807865][ T30] NMI backtrace for cpu 0 [ 287.812220][ T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc6-syzkaller-00212-g1dd28064d416 #0 [ 287.822116][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 287.832175][ T30] Call Trace: [ 287.835459][ T30] [ 287.838390][ T30] dump_stack_lvl+0x241/0x360 [ 287.843085][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.848320][ T30] ? __pfx__printk+0x10/0x10 [ 287.852937][ T30] ? vprintk_emit+0x631/0x770 [ 287.857632][ T30] ? __pfx_vprintk_emit+0x10/0x10 [ 287.862691][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 287.867657][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.873132][ T30] ? _printk+0xd5/0x120 [ 287.877310][ T30] ? __pfx__printk+0x10/0x10 [ 287.881909][ T30] ? __wake_up_klogd+0xcc/0x110 [ 287.886777][ T30] ? __pfx__printk+0x10/0x10 [ 287.891394][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.897379][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.903367][ T30] watchdog+0xfde/0x1020 [ 287.907620][ T30] ? watchdog+0x1ea/0x1020 [ 287.912045][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.916722][ T30] kthread+0x2f0/0x390 [ 287.920816][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.925515][ T30] ? __pfx_kthread+0x10/0x10 [ 287.930147][ T30] ret_from_fork+0x4b/0x80 [ 287.934599][ T30] ? __pfx_kthread+0x10/0x10 [ 287.939197][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.943979][ T30] [ 287.947194][ T30] Sending NMI from CPU 0 to CPUs 1: [ 287.952508][ C1] NMI backtrace for cpu 1 [ 287.952522][ C1] CPU: 1 PID: 4525 Comm: klogd Not tainted 6.10.0-rc6-syzkaller-00212-g1dd28064d416 #0 [ 287.952540][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 287.952550][ C1] RIP: 0010:lookup_address_in_pgd_attr+0x3f6/0x860 [ 287.952575][ C1] Code: 12 41 81 e4 f8 0f 00 00 49 01 ec 4c 89 e3 48 c1 eb 03 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 e7 e8 2a fc b5 00 <49> 8b 2c 24 48 89 ee 48 83 e6 9f 31 ff e8 48 95 53 00 48 83 e5 9f [ 287.952590][ C1] RSP: 0018:ffffc9000310f128 EFLAGS: 00000046 [ 287.952606][ C1] RAX: dffffc0000000000 RBX: 1ffff11002bdc3de RCX: ffff88807ee0bc00 [ 287.952620][ C1] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 287.952631][ C1] RBP: ffff888015ee1000 R08: ffffffff81429610 R09: 1ffffffff25ee2b2 [ 287.952644][ C1] R10: dffffc0000000000 R11: fffffbfff25ee2b3 R12: ffff888015ee1ef0 [ 287.952657][ C1] R13: 000ffffffffff000 R14: ffff888000000000 R15: ffff88823bd18000 [ 287.952671][ C1] FS: 00007fad3012f380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 287.952686][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.952698][ C1] CR2: 000056072d59d680 CR3: 000000007ea26000 CR4: 00000000003506f0 [ 287.952713][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.952723][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.952734][ C1] Call Trace: [ 287.952740][ C1] [ 287.952747][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 287.952766][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 287.952787][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.952806][ C1] ? nmi_handle+0x2a/0x5a0 [ 287.952840][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 287.952859][ C1] ? nmi_handle+0x14f/0x5a0 [ 287.952884][ C1] ? nmi_handle+0x2a/0x5a0 [ 287.952911][ C1] ? lookup_address_in_pgd_attr+0x3f6/0x860 [ 287.952928][ C1] ? default_do_nmi+0x63/0x160 [ 287.952949][ C1] ? exc_nmi+0x123/0x1f0 [ 287.952967][ C1] ? end_repeat_nmi+0xf/0x53 [ 287.952998][ C1] ? lookup_address_in_pgd_attr+0x3c0/0x860 [ 287.953017][ C1] ? lookup_address_in_pgd_attr+0x3f6/0x860 [ 287.953035][ C1] ? lookup_address_in_pgd_attr+0x3f6/0x860 [ 287.953053][ C1] ? lookup_address_in_pgd_attr+0x3f6/0x860 [ 287.953071][ C1] [ 287.953077][ C1] [ 287.953088][ C1] lookup_address+0xca/0x120 [ 287.953105][ C1] ? __pfx_lookup_address+0x10/0x10 [ 287.953124][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 287.953143][ C1] kfence_unprotect+0xb3/0x290 [ 287.953177][ C1] ? __pfx_kfence_unprotect+0x10/0x10 [ 287.953202][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 287.953230][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 287.953256][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.953286][ C1] kfence_guarded_alloc+0x3cf/0xcd0 [ 287.953317][ C1] ? __pfx_kfence_guarded_alloc+0x10/0x10 [ 287.953348][ C1] ? get_alloc_stack_hash+0x3c0/0x760 [ 287.953374][ C1] __kfence_alloc+0x343/0x370 [ 287.953401][ C1] ? __pfx___kfence_alloc+0x10/0x10 [ 287.953425][ C1] ? __kfence_alloc+0x264/0x370 [ 287.953448][ C1] ? kmem_cache_alloc_node_noprof+0x26f/0x320 [ 287.953469][ C1] ? __alloc_skb+0x1c3/0x440 [ 287.953488][ C1] ? alloc_skb_with_frags+0xc3/0x770 [ 287.953508][ C1] ? sock_alloc_send_pskb+0x91a/0xa60 [ 287.953531][ C1] ? unix_dgram_sendmsg+0x6d3/0x1f80 [ 287.953550][ C1] ? __sock_sendmsg+0x221/0x270 [ 287.953565][ C1] ? __sys_sendto+0x3a4/0x4f0 [ 287.953583][ C1] ? __x64_sys_sendto+0xde/0x100 [ 287.953601][ C1] ? do_syscall_64+0xf3/0x230 [ 287.953625][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.953676][ C1] ? kmem_cache_alloc_node_noprof+0x250/0x320 [ 287.953698][ C1] ? __alloc_skb+0x1c3/0x440 [ 287.953717][ C1] kmem_cache_alloc_node_noprof+0x26f/0x320 [ 287.953741][ C1] __alloc_skb+0x1c3/0x440 [ 287.953760][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 287.953789][ C1] ? __pfx___alloc_skb+0x10/0x10 [ 287.953813][ C1] alloc_skb_with_frags+0xc3/0x770 [ 287.953842][ C1] sock_alloc_send_pskb+0x91a/0xa60 [ 287.953877][ C1] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 287.953903][ C1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 287.953934][ C1] unix_dgram_sendmsg+0x6d3/0x1f80 [ 287.953960][ C1] ? tomoyo_socket_sendmsg_permission+0x288/0x420 [ 287.953986][ C1] ? __pfx_tomoyo_socket_sendmsg_permission+0x10/0x10 [ 287.954010][ C1] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 287.954036][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 287.954052][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 287.954080][ C1] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 287.954099][ C1] __sock_sendmsg+0x221/0x270 [ 287.954117][ C1] __sys_sendto+0x3a4/0x4f0 [ 287.954140][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 287.954180][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.954199][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.954221][ C1] __x64_sys_sendto+0xde/0x100 [ 287.954243][ C1] do_syscall_64+0xf3/0x230 [ 287.954268][ C1] ? clear_bhb_loop+0x35/0x90 [ 287.954294][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.954317][ C1] RIP: 0033:0x7fad302919b5 [ 287.954331][ C1] Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83 [ 287.954344][ C1] RSP: 002b:00007fff3fef48c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 287.954361][ C1] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fad302919b5 [ 287.954372][ C1] RDX: 000000000000008b RSI: 0000563c4a1f6120 RDI: 0000000000000003 [ 287.954383][ C1] RBP: 0000563c4a1f1910 R08: 0000000000000000 R09: 0000000000000000 [ 287.954394][ C1] R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013 [ 287.954404][ C1] R13: 00007fad3041f212 R14: 00007fff3fef49c8 R15: 0000000000000000 [ 287.954424][ C1] [ 287.954431][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.923 msecs [ 287.954504][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 288.536869][ T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc6-syzkaller-00212-g1dd28064d416 #0 [ 288.546976][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 288.557040][ T30] Call Trace: [ 288.560329][ T30] [ 288.563704][ T30] dump_stack_lvl+0x241/0x360 [ 288.568405][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 288.573623][ T30] ? __pfx__printk+0x10/0x10 [ 288.578248][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 288.584240][ T30] ? vscnprintf+0x5d/0x90 [ 288.588581][ T30] panic+0x349/0x860 [ 288.592494][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 288.598659][ T30] ? __pfx_panic+0x10/0x10 [ 288.603086][ T30] ? tick_nohz_tick_stopped+0x82/0xb0 [ 288.608475][ T30] ? __irq_work_queue_local+0x137/0x410 [ 288.614032][ T30] ? irq_work_queue+0xca/0x150 [ 288.618803][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 288.624797][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 288.630787][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 288.636806][ T30] ? nmi_trigger_cpumask_backtrace+0x251/0x320 [ 288.642975][ T30] watchdog+0x101d/0x1020 [ 288.647321][ T30] ? watchdog+0x1ea/0x1020 [ 288.651756][ T30] ? __pfx_watchdog+0x10/0x10 [ 288.656443][ T30] kthread+0x2f0/0x390 [ 288.660523][ T30] ? __pfx_watchdog+0x10/0x10 [ 288.665247][ T30] ? __pfx_kthread+0x10/0x10 [ 288.669853][ T30] ret_from_fork+0x4b/0x80 [ 288.674287][ T30] ? __pfx_kthread+0x10/0x10 [ 288.678889][ T30] ret_from_fork_asm+0x1a/0x30 [ 288.683679][ T30] [ 288.686851][ T30] Kernel Offset: disabled [ 288.691184][ T30] Rebooting in 86400 seconds..