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: 112 Comm: jfsCommit Not tainted 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: 4f 8a 61 07 0f 0b e8 a8 6e 84 fe 48 c7 c7 80 13 e4 8a 48 c7 c6 79 0f e4 8a ba a3 03 00 00 48 c7 c1 60 20 e4 8a e8 29 8a 61 07 <0f> 0b e8 82 6e 84 fe 48 c7 c7 80 13 e4 8a 48 c7 c6 79 0f e4 8a ba RSP: 0018:ffffc90002cd7d08 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: a1306e4d2810ab00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000284a318 R08: ffffc90002cd7a07 R09: 1ffff9200059af40 R10: dffffc0000000000 R11: fffff5200059af41 R12: ffff88805d4ecaa8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801d30e694 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2016211000 CR3: 000000007f98d000 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: 4f 8a 61 07 0f 0b e8 a8 6e 84 fe 48 c7 c7 80 13 e4 8a 48 c7 c6 79 0f e4 8a ba a3 03 00 00 48 c7 c1 60 20 e4 8a e8 29 8a 61 07 <0f> 0b e8 82 6e 84 fe 48 c7 c7 80 13 e4 8a 48 c7 c6 79 0f e4 8a ba RSP: 0018:ffffc90002cd7d08 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: a1306e4d2810ab00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000284a318 R08: ffffc90002cd7a07 R09: 1ffff9200059af40 R10: dffffc0000000000 R11: fffff5200059af41 R12: ffff88805d4ecaa8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801d30e694 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b52d86358 CR3: 000000006635b000 CR4: 00000000003506e0