Warning: Permanently added '[localhost]:45340' (ED25519) to the list of known hosts. executing program [ 79.271270][ T5104] loop0: detected capacity change from 0 to 32768 [ 79.289791][ T5104] bcachefs (/dev/loop0): error reading default superblock: checksum error, type crc32c_nonzero: got 8c1ca219 should be 29d2fb78 [ 79.396894][ T5104] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,compression=lz4,nojournal_transaction_names [ 79.415854][ T5104] [ 79.416928][ T5104] ============================================ [ 79.419349][ T5104] WARNING: possible recursive locking detected [ 79.421714][ T5104] 6.12.0-rc1-syzkaller-00031-ge32cde8d2bd7 #0 Not tainted [ 79.425562][ T5104] -------------------------------------------- [ 79.428431][ T5104] syz-executor324/5104 is trying to acquire lock: [ 79.431430][ T5104] ffff888041380908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_replicas_entry_validate+0x2a/0x80 [ 79.435498][ T5104] [ 79.435498][ T5104] but task is already holding lock: [ 79.438336][ T5104] ffff888041380908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_read_superblock_clean+0x36/0x520 [ 79.442484][ T5104] [ 79.442484][ T5104] other info that might help us debug this: [ 79.446768][ T5104] Possible unsafe locking scenario: [ 79.446768][ T5104] [ 79.450051][ T5104] CPU0 [ 79.451414][ T5104] ---- [ 79.452779][ T5104] lock(&c->sb_lock); [ 79.454435][ T5104] lock(&c->sb_lock); [ 79.456321][ T5104] [ 79.456321][ T5104] *** DEADLOCK *** [ 79.456321][ T5104] [ 79.460134][ T5104] May be due to missing lock nesting notation [ 79.460134][ T5104] [ 79.463843][ T5104] 2 locks held by syz-executor324/5104: [ 79.466158][ T5104] #0: ffff888041380278 (&c->state_lock){+.+.}-{3:3}, at: bch2_fs_start+0x45/0x5b0 [ 79.470107][ T5104] #1: ffff888041380908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_read_superblock_clean+0x36/0x520 [ 79.475333][ T5104] [ 79.475333][ T5104] stack backtrace: [ 79.478236][ T5104] CPU: 0 UID: 0 PID: 5104 Comm: syz-executor324 Not tainted 6.12.0-rc1-syzkaller-00031-ge32cde8d2bd7 #0 [ 79.482867][ T5104] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 79.487543][ T5104] Call Trace: [ 79.488964][ T5104] [ 79.490215][ T5104] dump_stack_lvl+0x241/0x360 [ 79.492334][ T5104] ? __pfx_dump_stack_lvl+0x10/0x10 [ 79.494745][ T5104] ? __pfx__printk+0x10/0x10 [ 79.496912][ T5104] ? lockdep_unlock+0x16a/0x300 [ 79.499041][ T5104] print_deadlock_bug+0x483/0x620 [ 79.501230][ T5104] validate_chain+0x15e2/0x5920 [ 79.503273][ T5104] ? __pfx___bfs+0x10/0x10 [ 79.505156][ T5104] ? __pfx_validate_chain+0x10/0x10 [ 79.507530][ T5104] ? mark_lock+0x9a/0x360 [ 79.509916][ T5104] ? __lock_acquire+0x1384/0x2050 [ 79.512943][ T5104] ? mark_lock+0x9a/0x360 [ 79.514978][ T5104] __lock_acquire+0x1384/0x2050 [ 79.516971][ T5104] lock_acquire+0x1ed/0x550 [ 79.518810][ T5104] ? bch2_replicas_entry_validate+0x2a/0x80 [ 79.521189][ T5104] ? __pfx_lock_acquire+0x10/0x10 [ 79.523131][ T5104] ? lockdep_hardirqs_on+0x99/0x150 [ 79.525348][ T5104] ? __pfx___might_resched+0x10/0x10 [ 79.527712][ T5104] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 79.530544][ T5104] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 79.533368][ T5104] ? stack_trace_save+0x118/0x1d0 [ 79.535464][ T5104] __mutex_lock+0x136/0xd70 [ 79.537326][ T5104] ? bch2_replicas_entry_validate+0x2a/0x80 [ 79.539894][ T5104] ? kasan_save_track+0x51/0x80 [ 79.542270][ T5104] ? kasan_save_track+0x3f/0x80 [ 79.544771][ T5104] ? __kasan_kmalloc+0x98/0xb0 [ 79.546902][ T5104] ? __kmalloc_node_track_caller_noprof+0x225/0x440 [ 79.549734][ T5104] ? kmemdup_noprof+0x2a/0x60 [ 79.551606][ T5104] ? bch2_read_superblock_clean+0xd6/0x520 [ 79.553920][ T5104] ? bch2_replicas_entry_validate+0x2a/0x80 [ 79.556355][ T5104] ? bch2_fs_start+0x356/0x5b0 [ 79.558627][ T5104] ? __pfx___mutex_lock+0x10/0x10 [ 79.561463][ T5104] ? do_syscall_64+0xf3/0x230 [ 79.563689][ T5104] bch2_replicas_entry_validate+0x2a/0x80 [ 79.566226][ T5104] journal_entry_data_usage_validate+0x2b6/0x690 [ 79.568773][ T5104] ? __pfx_journal_entry_data_usage_validate+0x10/0x10 [ 79.571327][ T5104] ? journal_entry_usage_validate+0xc2/0x360 [ 79.573803][ T5104] ? __pfx_journal_entry_usage_validate+0x10/0x10 [ 79.576671][ T5104] ? rcu_is_watching+0x15/0xb0 [ 79.579576][ T5104] ? trace_kmalloc+0x1f/0xd0 [ 79.582023][ T5104] ? __kmalloc_node_track_caller_noprof+0x242/0x440 [ 79.584922][ T5104] ? kmemdup_noprof+0x45/0x60 [ 79.586804][ T5104] ? bch2_journal_entry_validate+0x6a/0xf0 [ 79.589179][ T5104] bch2_read_superblock_clean+0x207/0x520 [ 79.591527][ T5104] bch2_fs_recovery+0x1f4/0x39c0 [ 79.593599][ T5104] ? mark_lock+0x9a/0x360 [ 79.595435][ T5104] ? __lock_acquire+0x1384/0x2050 [ 79.597934][ T5104] ? __pfx_bch2_fs_recovery+0x10/0x10 [ 79.600789][ T5104] ? __pfx_lock_release+0x10/0x10 [ 79.603050][ T5104] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 79.605320][ T5104] ? __pfx_lock_release+0x10/0x10 [ 79.607350][ T5104] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 79.609692][ T5104] ? bch2_get_next_online_dev+0x4b9/0x4f0 [ 79.612380][ T5104] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 79.615398][ T5104] ? llist_reverse_order+0x72/0x90 [ 79.618150][ T5104] bch2_fs_start+0x356/0x5b0 [ 79.620075][ T5104] bch2_fs_get_tree+0xd68/0x1710 [ 79.622106][ T5104] ? __pfx_bch2_fs_get_tree+0x10/0x10 [ 79.624300][ T5104] ? generic_parse_monolithic+0x387/0x400 [ 79.626606][ T5104] ? apparmor_capable+0x13b/0x1b0 [ 79.628659][ T5104] vfs_get_tree+0x90/0x2b0 [ 79.630558][ T5104] do_new_mount+0x2be/0xb40 [ 79.632739][ T5104] ? __pfx_do_new_mount+0x10/0x10 [ 79.634977][ T5104] __se_sys_mount+0x2d6/0x3c0 [ 79.637267][ T5104] ? __pfx___se_sys_mount+0x10/0x10 [ 79.639653][ T5104] ? do_syscall_64+0x100/0x230 [ 79.641709][ T5104] ? __x64_sys_mount+0x20/0xc0 [ 79.643661][ T5104] do_syscall_64+0xf3/0x230 [ 79.645536][ T5104] ? clear_bhb_loop+0x35/0x90 [ 79.647672][ T5104] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.650963][ T5104] RIP: 0033:0x7f27f6b4606a [ 79.653002][ T5104] 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 [ 79.660726][ T5104] RSP: 002b:00007ffe74f5f118 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 79.664599][ T5104] RAX: ffffffffffffffda RBX: 00007ffe74f5f130 RCX: 00007f27f6b4606a [ 79.668860][ T5104] RDX: 0000000020005d80 RSI: 0000000020005dc0 RDI: 00007ffe74f5f130 [ 79.672185][ T5104] RBP: 0000000000000004 R08: 00007ffe74f5f170 R09: 0000000000005dc8 [ 79.675411][ T5104] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 [ 79.678561][ T5104] R13: 00007ffe74f5f170 R14: 0000000000000003 R15: 0000000001000000 [ 79.682146][ T5104] VM DIAGNOSIS: 21:20:25 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000072 RBX=ffffffff9a711e40 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc90000e36570 R8 =ffffffff85496a1b R9 =1ffff11006766046 R10=dffffc0000000000 R11=ffffffff854969d0 R12=dffffc0000000000 R13=ffffffff9a40ceff R14=0000000000000072 R15=00000000000003f8 RIP=ffffffff85496a4e 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 0000555569199380 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=0000563a9f49a708 CR3=00000000337f6000 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=0000000000440401 Opmask01=0000000000000001 Opmask02=00000000fff7ffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffe74f5f2b0 0000003000000018 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f27f6bc9620 00007f27f6bbd5d8 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f27f6baf084 00007f27f6bc2240 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 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 2525252525252525 2525252525252525 2525252525252525 2525252525252525 ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 65723d73726f7272 6500747865003036 36396f7369007265 6c6c616b7a797300 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 40571856574a5757 4000515d40001513 131c4a564c005740 4949444e5f5c5600 ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 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