Warning: Permanently added '[localhost]:17562' (ED25519) to the list of known hosts. executing program [ 95.124873][ T5109] loop0: detected capacity change from 0 to 32768 [ 95.246373][ T5109] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=compression=lz4,nojournal_transaction_names [ 95.252511][ T5109] [ 95.253538][ T5109] ============================================ [ 95.256099][ T5109] WARNING: possible recursive locking detected [ 95.258485][ T5109] 6.12.0-rc1-syzkaller-00125-g0c559323bbaa #0 Not tainted [ 95.262153][ T5109] -------------------------------------------- [ 95.265039][ T5109] syz-executor423/5109 is trying to acquire lock: [ 95.269195][ T5109] ffff888040980908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_replicas_entry_validate+0x2a/0x80 [ 95.273278][ T5109] [ 95.273278][ T5109] but task is already holding lock: [ 95.275945][ T5109] ffff888040980908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_read_superblock_clean+0x36/0x520 [ 95.279950][ T5109] [ 95.279950][ T5109] other info that might help us debug this: [ 95.283208][ T5109] Possible unsafe locking scenario: [ 95.283208][ T5109] [ 95.286365][ T5109] CPU0 [ 95.287849][ T5109] ---- [ 95.289299][ T5109] lock(&c->sb_lock); [ 95.291025][ T5109] lock(&c->sb_lock); [ 95.292699][ T5109] [ 95.292699][ T5109] *** DEADLOCK *** [ 95.292699][ T5109] [ 95.296109][ T5109] May be due to missing lock nesting notation [ 95.296109][ T5109] [ 95.299440][ T5109] 2 locks held by syz-executor423/5109: [ 95.301682][ T5109] #0: ffff888040980278 (&c->state_lock){+.+.}-{3:3}, at: bch2_fs_start+0x45/0x5b0 [ 95.306630][ T5109] #1: ffff888040980908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_read_superblock_clean+0x36/0x520 [ 95.312781][ T5109] [ 95.312781][ T5109] stack backtrace: [ 95.315054][ T5109] CPU: 0 UID: 0 PID: 5109 Comm: syz-executor423 Not tainted 6.12.0-rc1-syzkaller-00125-g0c559323bbaa #0 [ 95.319243][ T5109] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 95.323312][ T5109] Call Trace: [ 95.324620][ T5109] [ 95.325803][ T5109] dump_stack_lvl+0x241/0x360 [ 95.328097][ T5109] ? __pfx_dump_stack_lvl+0x10/0x10 [ 95.331300][ T5109] ? __pfx__printk+0x10/0x10 [ 95.333929][ T5109] ? lockdep_unlock+0x16a/0x300 [ 95.335823][ T5109] print_deadlock_bug+0x483/0x620 [ 95.337756][ T5109] validate_chain+0x15e2/0x5920 [ 95.339662][ T5109] ? __pfx___bfs+0x10/0x10 [ 95.341419][ T5109] ? __pfx_validate_chain+0x10/0x10 [ 95.343371][ T5109] ? mark_lock+0x9a/0x360 [ 95.345184][ T5109] ? __lock_acquire+0x1384/0x2050 [ 95.347648][ T5109] ? mark_lock+0x9a/0x360 [ 95.350355][ T5109] __lock_acquire+0x1384/0x2050 [ 95.352792][ T5109] lock_acquire+0x1ed/0x550 [ 95.354720][ T5109] ? bch2_replicas_entry_validate+0x2a/0x80 [ 95.357017][ T5109] ? __pfx_lock_acquire+0x10/0x10 [ 95.359280][ T5109] ? lockdep_hardirqs_on+0x99/0x150 [ 95.361476][ T5109] ? __pfx___might_resched+0x10/0x10 [ 95.363769][ T5109] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 95.366078][ T5109] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 95.368423][ T5109] ? stack_trace_save+0x118/0x1d0 [ 95.370353][ T5109] __mutex_lock+0x136/0xd70 [ 95.372248][ T5109] ? bch2_replicas_entry_validate+0x2a/0x80 [ 95.374816][ T5109] ? kasan_save_track+0x51/0x80 [ 95.376988][ T5109] ? kasan_save_track+0x3f/0x80 [ 95.379205][ T5109] ? __kasan_kmalloc+0x98/0xb0 [ 95.381329][ T5109] ? __kmalloc_node_track_caller_noprof+0x225/0x440 [ 95.383949][ T5109] ? kmemdup_noprof+0x2a/0x60 [ 95.385763][ T5109] ? bch2_read_superblock_clean+0xd6/0x520 [ 95.388097][ T5109] ? bch2_replicas_entry_validate+0x2a/0x80 [ 95.390912][ T5109] ? bch2_fs_start+0x356/0x5b0 [ 95.393510][ T5109] ? __pfx___mutex_lock+0x10/0x10 [ 95.395871][ T5109] ? do_syscall_64+0xf3/0x230 [ 95.397967][ T5109] bch2_replicas_entry_validate+0x2a/0x80 [ 95.400156][ T5109] journal_entry_data_usage_validate+0x2b6/0x690 [ 95.402568][ T5109] ? __pfx_journal_entry_data_usage_validate+0x10/0x10 [ 95.405256][ T5109] ? journal_entry_usage_validate+0xc2/0x360 [ 95.407711][ T5109] ? __pfx_journal_entry_usage_validate+0x10/0x10 [ 95.410697][ T5109] ? rcu_is_watching+0x15/0xb0 [ 95.413491][ T5109] ? trace_kmalloc+0x1f/0xd0 [ 95.415978][ T5109] ? __kmalloc_node_track_caller_noprof+0x242/0x440 [ 95.418594][ T5109] ? kmemdup_noprof+0x45/0x60 [ 95.420440][ T5109] ? bch2_journal_entry_validate+0x6a/0xf0 [ 95.422754][ T5109] bch2_read_superblock_clean+0x207/0x520 [ 95.424984][ T5109] bch2_fs_recovery+0x1f4/0x39c0 [ 95.427006][ T5109] ? mark_lock+0x9a/0x360 [ 95.428703][ T5109] ? __lock_acquire+0x1384/0x2050 [ 95.430762][ T5109] ? __pfx_bch2_fs_recovery+0x10/0x10 [ 95.432943][ T5109] ? __pfx_lock_release+0x10/0x10 [ 95.435403][ T5109] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 95.438754][ T5109] ? __pfx_lock_release+0x10/0x10 [ 95.440757][ T5109] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 95.442929][ T5109] ? bch2_get_next_online_dev+0x4b9/0x4f0 [ 95.445126][ T5109] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 95.447255][ T5109] ? llist_reverse_order+0x72/0x90 [ 95.449416][ T5109] bch2_fs_start+0x356/0x5b0 [ 95.451741][ T5109] bch2_fs_get_tree+0xd68/0x1710 [ 95.454377][ T5109] ? __pfx_bch2_fs_get_tree+0x10/0x10 [ 95.457014][ T5109] ? generic_parse_monolithic+0x387/0x400 [ 95.459327][ T5109] ? __pfx_vfs_parse_fs_string+0x10/0x10 [ 95.461616][ T5109] ? apparmor_capable+0x13b/0x1b0 [ 95.463691][ T5109] vfs_get_tree+0x90/0x2b0 [ 95.465525][ T5109] do_new_mount+0x2be/0xb40 [ 95.467418][ T5109] ? __pfx_do_new_mount+0x10/0x10 [ 95.469595][ T5109] __se_sys_mount+0x2d6/0x3c0 [ 95.471895][ T5109] ? __pfx___se_sys_mount+0x10/0x10 [ 95.474796][ T5109] ? exc_page_fault+0x590/0x8c0 [ 95.476993][ T5109] ? __x64_sys_mount+0x20/0xc0 [ 95.479001][ T5109] do_syscall_64+0xf3/0x230 [ 95.480758][ T5109] ? clear_bhb_loop+0x35/0x90 [ 95.482524][ T5109] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 95.484767][ T5109] RIP: 0033:0x7fe5fbff006a [ 95.486542][ T5109] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 95.497199][ T5109] RSP: 002b:00007ffecf578698 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 95.500641][ T5109] RAX: ffffffffffffffda RBX: 00007ffecf5786b0 RCX: 00007fe5fbff006a [ 95.503705][ T5109] RDX: 0000000020005d80 RSI: 0000000020000100 RDI: 00007ffecf5786b0 [ 95.506725][ T5109] RBP: 0000000000000004 R08: 00007ffecf5786f0 R09: 0000000000005d99 [ 95.509853][ T5109] R10: 0000000003000400 R11: 0000000000000282 R12: 0000000003000400 [ 95.512918][ T5109] R13: 00007ffecf5786f0 R14: 0000000000000003 R15: 0000000001000000 [ 95.516563][ T5109] [ 96.975140][ T1337] cfg80211: failed to load regulatory.db VM DIAGNOSIS: 22:02:11 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000079 RBX=ffffffff9a711e40 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc90002cfe570 R8 =ffffffff8549705b R9 =1ffff11003da8046 R10=dffffc0000000000 R11=ffffffff85497010 R12=dffffc0000000000 R13=ffffffff9a40cf04 R14=0000000000000079 R15=00000000000003f8 RIP=ffffffff8549708e RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000555578c5d380 ffffffff 00c00000 GS =0000 ffff88801fc00000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00005611dabca0d0 CR3=000000003f6b2000 CR4=00352ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000000006001 Opmask01=0000000000030008 Opmask02=0000000000000002 Opmask03=0000000000000000 Opmask04=00000000ffffffff Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000001 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffc17becf00 0000003000000018 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 6565656565656565 6565656565656565 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ff00ff0000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffffffffffffffff ffffffffffff0000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ff00ff0000000000 0000000000000000 ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0a0a0a0a0a0a0a0a 0a0a0a0a0a0a0a0a 0a0a0a0a0a0a0a0a 0a0a0a0a0a0a0a0a ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4b36333131203a79 726f6d656d202970 6100007466656c20 7365747962203800 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4136333131203073 7265676567202370 6100007466656620 7365747362203200 ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 3228206564205d31 2d202020202e3420 36363331312e2032 2020205b3e362d0a ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 3228202e20203131 2020202020203320 3632303124202020 20202034342d0000 ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 637c6f6e2a573b5e 2a2a2a2a5157393f 3d383a3b2433382a 2a2a51343c360024 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 69637c6f6e2a573b 5e2a2a2a2a51573d 3c3c393b3b243338 2a2a2a51343c3600 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000