bch2_fs_reconfigure+0x29a/0x400 fs/bcachefs/fs.c:2657 reconfigure_super+0x227/0x890 fs/super.c:1075 vfs_cmd_reconfigure fs/fsopen.c:262 [inline] vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:291 __do_sys_fsconfig fs/fsopen.c:467 [inline] __se_sys_fsconfig+0x78e/0x8d0 fs/fsopen.c:344 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5fee58e969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5fea9d4038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 00007f5fee7b6080 RCX: 00007f5fee58e969 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000009 RBP: 00007f5fee610ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5fee7b6080 R15: 00007ffeb0b68718 Mem-Info: active_anon:7422 inactive_anon:0 isolated_anon:0 active_file:2 inactive_file:39871 isolated_file:0 unevictable:1768 dirty:1048 writeback:0 slab_reclaimable:7413 slab_unreclaimable:34130 mapped:10400 shmem:6348 pagetables:508 sec_pagetables:285 bounce:0 kernel_misc_reclaimable:0 free:23886 free_pcp:2409 free_cma:0 Node 0 active_anon:708kB inactive_anon:0kB active_file:0kB inactive_file:4544kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:3148kB dirty:8kB writeback:0kB shmem:12kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:2960kB pagetables:496kB sec_pagetables:1088kB all_unreclaimable? yes Balloon:0kB Node 1 active_anon:28980kB inactive_anon:0kB active_file:8kB inactive_file:154940kB unevictable:7072kB isolated(anon):0kB isolated(file):0kB mapped:38452kB dirty:4184kB writeback:0kB shmem:25380kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:6640kB pagetables:1536kB sec_pagetables:52kB all_unreclaimable? no Balloon:0kB Node 0 DMA free:2344kB boost:2048kB min:2808kB low:2996kB high:3184kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 123 123 123 123 Node 0 DMA32 free:16884kB boost:10948kB min:15816kB low:17032kB high:18248kB reserved_highatomic:0KB active_anon:708kB inactive_anon:0kB active_file:0kB inactive_file:4544kB unevictable:0kB writepending:8kB present:770052kB managed:126384kB mlocked:0kB bounce:0kB free_pcp:136kB local_pcp:136kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 DMA32 free:80220kB boost:0kB min:34312kB low:42888kB high:51464kB reserved_highatomic:0KB active_anon:28980kB inactive_anon:0kB active_file:8kB inactive_file:154940kB unevictable:7072kB writepending:4184kB present:786288kB managed:690876kB mlocked:0kB bounce:0kB free_pcp:5744kB local_pcp:5744kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 40*4kB (U) 11*8kB (U) 7*16kB (UM) 28*32kB (UM) 1*64kB (U) 0*128kB 0*256kB 0*512kB 1*1024kB (M) 0*2048kB 0*4096kB = 2344kB Node 0 DMA32: 136*4kB (UME) 110*8kB (UME) 48*16kB (UME) 133*32kB (UME) 66*64kB (UME) 24*128kB (UME) 7*256kB (UME) 2*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 16560kB Node 1 DMA32: 27*4kB (UM) 12*8kB (UME) 11*16kB (UME) 10*32kB (UME) 3*64kB (UM) 2*128kB (UM) 3*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 1*2048kB (U) 17*4096kB (M) = 80252kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB 46219 total pagecache pages 0 pages in swap cache Free swap = 124996kB Total swap = 124996kB 393083 pages RAM 0 pages HighMem/MovableOnly 184928 pages reserved 0 pages cma reserved bcachefs (loop0): flushing journal and stopping allocators, journal seq 10 bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 10 ------------[ cut here ]------------ kernel BUG at fs/bcachefs/journal.c:397! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-10402-g4cb6c8af8591 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:journal_entry_open fs/bcachefs/journal.c:397 [inline] RIP: 0010:__journal_res_get+0x2385/0x25b0 fs/bcachefs/journal.c:639 Code: ff ff e9 75 dd ff ff e8 d9 3d 7d fd 41 bf f0 f6 ff ff e9 65 dd ff ff e8 b9 91 20 07 e8 c4 3d 7d fd 90 0f 0b e8 bc 3d 7d fd 90 <0f> 0b e8 b4 3d 7d fd 90 0f 0b e8 ac 3d 7d fd 90 0f 0b e8 a4 3d 7d RSP: 0018:ffffc9000d50f500 EFLAGS: 00010293 RAX: ffffffff84430394 RBX: 0000000000000000 RCX: ffff888000254880 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc9000d50f7d0 R08: ffff8880527ca9b7 R09: 1ffff1100a4f9536 R10: dffffc0000000000 R11: ffffed100a4f9537 R12: 000000000000000a R13: dffffc0000000000 R14: 0000000000000002 R15: 0000000000bffffe FS: 00007f5fea9d46c0(0000) GS:ffff88808d265000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffeb0b67f40 CR3: 000000004287d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_journal_res_get_slowpath+0xdc/0xae0 fs/bcachefs/journal.c:735 bch2_journal_res_get+0x14f/0x1f0 fs/bcachefs/journal.h:401 __bch2_journal_meta+0x40/0x1d0 fs/bcachefs/journal.c:980 bch2_fs_journal_stop+0x1dd/0x440 fs/bcachefs/journal.c:1402 __bch2_fs_read_only+0x343/0x5b0 fs/bcachefs/super.c:318 __bch2_fs_read_write+0x7b6/0x880 fs/bcachefs/super.c:566 bch2_fs_reconfigure+0x29a/0x400 fs/bcachefs/fs.c:2657 reconfigure_super+0x227/0x890 fs/super.c:1075 vfs_cmd_reconfigure fs/fsopen.c:262 [inline] vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:291 __do_sys_fsconfig fs/fsopen.c:467 [inline] __se_sys_fsconfig+0x78e/0x8d0 fs/fsopen.c:344 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5fee58e969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5fea9d4038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 00007f5fee7b6080 RCX: 00007f5fee58e969 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000009 RBP: 00007f5fee610ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5fee7b6080 R15: 00007ffeb0b68718 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:journal_entry_open fs/bcachefs/journal.c:397 [inline] RIP: 0010:__journal_res_get+0x2385/0x25b0 fs/bcachefs/journal.c:639 Code: ff ff e9 75 dd ff ff e8 d9 3d 7d fd 41 bf f0 f6 ff ff e9 65 dd ff ff e8 b9 91 20 07 e8 c4 3d 7d fd 90 0f 0b e8 bc 3d 7d fd 90 <0f> 0b e8 b4 3d 7d fd 90 0f 0b e8 ac 3d 7d fd 90 0f 0b e8 a4 3d 7d RSP: 0018:ffffc9000d50f500 EFLAGS: 00010293 RAX: ffffffff84430394 RBX: 0000000000000000 RCX: ffff888000254880 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc9000d50f7d0 R08: ffff8880527ca9b7 R09: 1ffff1100a4f9536 R10: dffffc0000000000 R11: ffffed100a4f9537 R12: 000000000000000a R13: dffffc0000000000 R14: 0000000000000002 R15: 0000000000bffffe FS: 00007f5fea9d46c0(0000) GS:ffff88808d265000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffeb0b67f40 CR3: 000000004287d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400