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: 0 PID: 277 Comm: jfsCommit Not tainted 5.15.185-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:931 Code: cf 60 c8 06 0f 0b e8 e8 33 a9 fe 48 c7 c7 80 3c 42 8a 48 c7 c6 79 38 42 8a ba a3 03 00 00 48 c7 c1 40 47 42 8a e8 a9 60 c8 06 <0f> 0b e8 c2 33 a9 fe 48 c7 c7 80 3c 42 8a 48 c7 c6 79 38 42 8a ba RSP: 0000:ffffc90002cbfd28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 304d7791856a5100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90002832090 R08: dffffc0000000000 R09: ffffed10172067a8 R10: ffffed10172067a8 R11: 1ffff110172067a7 R12: ffff88805fedc7c0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90002611110 FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2018981b88 CR3: 0000000022e68000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2716 [inline] jfs_lazycommit+0x583/0xb20 fs/jfs/jfs_txnmgr.c:2766 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Modules linked in: ---[ end trace 2fe7bd1ca6f1d2e2 ]--- RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:931 Code: cf 60 c8 06 0f 0b e8 e8 33 a9 fe 48 c7 c7 80 3c 42 8a 48 c7 c6 79 38 42 8a ba a3 03 00 00 48 c7 c1 40 47 42 8a e8 a9 60 c8 06 <0f> 0b e8 c2 33 a9 fe 48 c7 c7 80 3c 42 8a 48 c7 c6 79 38 42 8a ba RSP: 0000:ffffc90002cbfd28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 304d7791856a5100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90002832090 R08: dffffc0000000000 R09: ffffed10172067a8 R10: ffffed10172067a8 R11: 1ffff110172067a7 R12: ffff88805fedc7c0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90002611110 FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2d556c5a10 CR3: 0000000062cb9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400