overlay: filesystem on ./bus not supported
BUG at fs/jfs/jfs_txnmgr.c:662 assert(last)
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kernel BUG at fs/jfs/jfs_txnmgr.c:662!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 8805 Comm: syz.8.249 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:txLock+0x1b79/0x1cb0 fs/jfs/jfs_txnmgr.c:662
Code: e9 6a f8 ff ff e8 d7 07 81 fe 48 c7 c7 a0 4a 24 8b 48 c7 c6 99 46 24 8b ba 96 02 00 00 48 c7 c1 a0 4b 24 8b e8 d8 96 e9 fd 90 <0f> 0b e8 b0 07 81 fe 48 c7 c7 60 4c 24 8b e8 c4 96 e9 fd 48 c7 c7
RSP: 0018:ffffc90003e96e40 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 54cac6a59b9c6700
RDX: ffffc9000e24a000 RSI: 0000000000001bce RDI: 0000000000001bcf
RBP: ffffc90003e96f68 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520007d2d6d R12: 1ffff920006a1400
R13: ffffc9000350a000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fe696f966c0(0000) GS:ffff888126ef6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe68eb76000 CR3: 000000004da24000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 diWrite+0x444/0x1f40 fs/jfs/jfs_imap.c:654
 txCommit+0x852/0x5430 fs/jfs/jfs_txnmgr.c:1256
 jfs_commit_inode+0x2ef/0x530 fs/jfs/inode.c:114
 extAlloc+0xc3b/0xfb0 fs/jfs/jfs_extent.c:177
 jfs_get_block+0x346/0xab0 fs/jfs/inode.c:254
 __block_write_begin_int+0x6b5/0x1900 fs/buffer.c:2145
 block_write_begin+0x8a/0x120 fs/buffer.c:2256
 jfs_write_begin+0x35/0x80 fs/jfs/inode.c:306
 generic_perform_write+0x29d/0x8c0 mm/filemap.c:4254
 generic_file_write_iter+0x118/0x550 mm/filemap.c:4397
 do_iter_readv_writev+0x635/0x8d0 fs/read_write.c:-1
 vfs_writev+0x323/0x970 fs/read_write.c:1057
 do_pwritev fs/read_write.c:1153 [inline]
 __do_sys_pwritev2 fs/read_write.c:1211 [inline]
 __se_sys_pwritev2+0x17c/0x2a0 fs/read_write.c:1202
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe698d2f749
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:00007fe696f96038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007fe698f85fa0 RCX: 00007fe698d2f749
RDX: 0000000000000001 RSI: 0000200000000100 RDI: 0000000000000006
RBP: 00007fe698db3f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000005412 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe698f86038 R14: 00007fe698f85fa0 R15: 00007ffea826b968
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1b79/0x1cb0 fs/jfs/jfs_txnmgr.c:662
Code: e9 6a f8 ff ff e8 d7 07 81 fe 48 c7 c7 a0 4a 24 8b 48 c7 c6 99 46 24 8b ba 96 02 00 00 48 c7 c1 a0 4b 24 8b e8 d8 96 e9 fd 90 <0f> 0b e8 b0 07 81 fe 48 c7 c7 60 4c 24 8b e8 c4 96 e9 fd 48 c7 c7
RSP: 0018:ffffc90003e96e40 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 54cac6a59b9c6700
RDX: ffffc9000e24a000 RSI: 0000000000001bce RDI: 0000000000001bcf
RBP: ffffc90003e96f68 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520007d2d6d R12: 1ffff920006a1400
R13: ffffc9000350a000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fe696f966c0(0000) GS:ffff888126ef6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe68eb76000 CR3: 000000004da24000 CR4: 00000000003526f0