BUG at fs/jfs/jfs_txnmgr.c:931 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:931! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 110 Comm: jfsCommit Not tainted 6.6.101-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:931 Code: 8f f9 60 07 0f 0b e8 d8 c3 84 fe 48 c7 c7 40 0c e4 8a 48 c7 c6 39 08 e4 8a ba a3 03 00 00 48 c7 c1 20 19 e4 8a e8 69 f9 60 07 <0f> 0b e8 b2 c3 84 fe 48 c7 c7 40 0c e4 8a 48 c7 c6 39 08 e4 8a ba RSP: 0018:ffffc900024cfd08 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 1882510a7bfc1300 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000282a240 R08: ffffc900024cfa07 R09: 1ffff92000499f40 R10: dffffc0000000000 R11: fffff52000499f41 R12: ffff888077f07ba0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802dabf494 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc371d84198 CR3: 0000000018ec6000 CR4: 00000000003506e0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline] jfs_lazycommit+0x570/0xa60 fs/jfs/jfs_txnmgr.c:2732 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:931 Code: 8f f9 60 07 0f 0b e8 d8 c3 84 fe 48 c7 c7 40 0c e4 8a 48 c7 c6 39 08 e4 8a ba a3 03 00 00 48 c7 c1 20 19 e4 8a e8 69 f9 60 07 <0f> 0b e8 b2 c3 84 fe 48 c7 c7 40 0c e4 8a 48 c7 c6 39 08 e4 8a ba RSP: 0018:ffffc900024cfd08 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 1882510a7bfc1300 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000282a240 R08: ffffc900024cfa07 R09: 1ffff92000499f40 R10: dffffc0000000000 R11: fffff52000499f41 R12: ffff888077f07ba0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802dabf494 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4e96b49000 CR3: 000000007d78d000 CR4: 00000000003506f0