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: 107 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: 1f 29 2d 07 0f 0b e8 88 30 8e fe 48 c7 c7 40 48 c6 8a 48 c7 c6 39 44 c6 8a ba a4 03 00 00 48 c7 c1 20 55 c6 8a e8 f9 28 2d 07 <0f> 0b e8 62 30 8e fe 48 c7 c7 40 48 c6 8a 48 c7 c6 39 44 c6 8a ba RSP: 0018:ffffc90002d27d28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 67f46311ba50ec00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000289a750 R08: ffffc90002d27a27 R09: 1ffff920005a4f44 R10: dffffc0000000000 R11: fffff520005a4f45 R12: ffff8880522e66c8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802fec9494 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31b15ff8 CR3: 0000000063824000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline] jfs_lazycommit+0x56a/0xa70 fs/jfs/jfs_txnmgr.c:2733 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:932 Code: 1f 29 2d 07 0f 0b e8 88 30 8e fe 48 c7 c7 40 48 c6 8a 48 c7 c6 39 44 c6 8a ba a4 03 00 00 48 c7 c1 20 55 c6 8a e8 f9 28 2d 07 <0f> 0b e8 62 30 8e fe 48 c7 c7 40 48 c6 8a 48 c7 c6 39 44 c6 8a ba RSP: 0018:ffffc90002d27d28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 67f46311ba50ec00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000289a750 R08: ffffc90002d27a27 R09: 1ffff920005a4f44 R10: dffffc0000000000 R11: fffff520005a4f45 R12: ffff8880522e66c8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802fec9494 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2ef1fe82f8 CR3: 0000000066dce000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400