Locker's tblock: ffffc90003239170: 03239170 ffffc900 03239170 ffffc900
Locker's tblock: ffffc90003239180: 00000000 00000000 00000000 00000000
Tlock: ffffc9000355aa68: 00130000 20018040 28fb0d68 ffff8880
Tlock: ffffc9000355aa78: 5f79ef80 ffff8880 03140000 05002000
Tlock: ffffc9000355aa88: 111c0100 ffff0109 00000001 0000002d
Tlock: ffffc9000355aa98: 00000000 00000000 00000000 00000000
Tlock: ffffc9000355aaa8: 00000000 00000000
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:835!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 15540 Comm: syz.2.789 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:txLock+0x1c7a/0x1cc0 fs/jfs/jfs_txnmgr.c:835
Code: 48 c7 c6 00 65 6a 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 30 6a 00 6a 48 e8 9b 91 43 01 48 83 c4 10 90 <0f> 0b e8 4f c8 75 fe 4c 89 ff 48 c7 c6 20 6d 6a 8b e8 80 49 da fd
RSP: 0018:ffffc9000d22e740 EFLAGS: 00010282
RAX: 941db96919422000 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc900053e1000 RSI: 0000000000024111 RDI: 0000000000024112
RBP: ffffc9000d22e868 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1017104923 R12: 0000000000000010
R13: dffffc0000000000 R14: 1ffff920006ab54d R15: ffffc9000355aa6a
FS:  00007f86528be6c0(0000) GS:ffff8881265c9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f339ae840c0 CR3: 00000000a5574000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 xtSplitRoot+0x6d5/0x1010 fs/jfs/jfs_xtree.c:1297
 xtSplitUp+0x35b/0x1fc0 fs/jfs/jfs_xtree.c:785
 xtInsert+0x452/0xf20 fs/jfs/jfs_xtree.c:608
 extAlloc+0xad9/0x1020 fs/jfs/jfs_extent.c:150
 jfs_get_block+0x358/0xad0 fs/jfs/inode.c:254
 get_more_blocks fs/direct-io.c:648 [inline]
 do_direct_IO fs/direct-io.c:936 [inline]
 __blockdev_direct_IO+0x1671/0x3330 fs/direct-io.c:1243
 blockdev_direct_IO include/linux/fs.h:3077 [inline]
 jfs_direct_IO+0x11b/0x220 fs/jfs/inode.c:339
 generic_file_direct_write+0x1dc/0x3e0 mm/filemap.c:4248
 __generic_file_write_iter+0x120/0x240 mm/filemap.c:4417
 generic_file_write_iter+0x14b/0x690 mm/filemap.c:4457
 iter_file_splice_write+0x9a0/0x1100 fs/splice.c:738
 do_splice_from fs/splice.c:938 [inline]
 direct_splice_actor+0x104/0x160 fs/splice.c:1161
 splice_direct_to_actor+0x545/0xc80 fs/splice.c:1105
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x19b/0x2a0 fs/splice.c:1230
 do_sendfile+0x547/0x7e0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f865466aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f86528be028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f86548e5fa0 RCX: 00007f865466aeb9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f86546d8c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f86548e6038 R14: 00007f86548e5fa0 R15: 00007ffd98e7cb08
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1c7a/0x1cc0 fs/jfs/jfs_txnmgr.c:835
Code: 48 c7 c6 00 65 6a 8b ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 30 6a 00 6a 48 e8 9b 91 43 01 48 83 c4 10 90 <0f> 0b e8 4f c8 75 fe 4c 89 ff 48 c7 c6 20 6d 6a 8b e8 80 49 da fd
RSP: 0018:ffffc9000d22e740 EFLAGS: 00010282
RAX: 941db96919422000 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc900053e1000 RSI: 0000000000024111 RDI: 0000000000024112
RBP: ffffc9000d22e868 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1017104923 R12: 0000000000000010
R13: dffffc0000000000 R14: 1ffff920006ab54d R15: ffffc9000355aa6a
FS:  00007f86528be6c0(0000) GS:ffff8881265c9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f339ae840c0 CR3: 00000000a5574000 CR4: 00000000003526f0