BUG at fs/jfs/jfs_txnmgr.c:932 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:932! 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 02/12/2026 RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:932 Code: ef f2 72 07 0f 0b e8 88 96 7f fe 48 c7 c7 40 1f 04 8b 48 c7 c6 39 1b 04 8b ba a4 03 00 00 48 c7 c1 20 2c 04 8b e8 c9 f2 72 07 <0f> 0b e8 62 96 7f fe 48 c7 c7 40 1f 04 8b 48 c7 c6 39 1b 04 8b ba RSP: 0018:ffffc90002ce7d08 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: ea0b68c2cc8b1600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000285a0d8 R08: ffffc90002ce7a07 R09: 1ffff9200059cf40 R10: dffffc0000000000 R11: fffff5200059cf41 R12: ffff88802e2b10f8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888077590c94 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ded36bf198 CR3: 000000007d7f0000 CR4: 00000000003506e0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline] jfs_lazycommit+0x56e/0xa70 fs/jfs/jfs_txnmgr.c:2733 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:932 Code: ef f2 72 07 0f 0b e8 88 96 7f fe 48 c7 c7 40 1f 04 8b 48 c7 c6 39 1b 04 8b ba a4 03 00 00 48 c7 c1 20 2c 04 8b e8 c9 f2 72 07 <0f> 0b e8 62 96 7f fe 48 c7 c7 40 1f 04 8b 48 c7 c6 39 1b 04 8b ba RSP: 0018:ffffc90002ce7d08 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: ea0b68c2cc8b1600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000285a0d8 R08: ffffc90002ce7a07 R09: 1ffff9200059cf40 R10: dffffc0000000000 R11: fffff5200059cf41 R12: ffff88802e2b10f8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888077590c94 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558548aa68 CR3: 000000007d7f0000 CR4: 00000000003506e0