BUG at fs/jfs/jfs_txnmgr.c:931 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:931! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 105 Comm: jfsCommit Not tainted 6.15.0-rc5-syzkaller-00043-gd76bb1ebb558 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:931 Code: e9 fd 90 0f 0b e8 c1 33 82 fe 48 c7 c7 40 a3 a3 8b 48 c7 c6 39 9f a3 8b ba a3 03 00 00 48 c7 c1 40 b0 a3 8b e8 b2 f4 e9 fd 90 <0f> 0b e8 9a 33 82 fe 48 c7 c7 40 a3 a3 8b 48 c7 c6 39 9f a3 8b ba RSP: 0018:ffffc900018dfc68 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 70657984aead4600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000155d048 R08: ffffc900018df947 R09: 1ffff9200031bf28 R10: dffffc0000000000 R11: fffff5200031bf29 R12: dffffc0000000000 R13: 1ffff1100a53fbc7 R14: ffff8880529fde38 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88808d6cb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007febd01bd000 CR3: 000000001222d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline] jfs_lazycommit+0x584/0xa90 fs/jfs/jfs_txnmgr.c:2733 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:931 Code: e9 fd 90 0f 0b e8 c1 33 82 fe 48 c7 c7 40 a3 a3 8b 48 c7 c6 39 9f a3 8b ba a3 03 00 00 48 c7 c1 40 b0 a3 8b e8 b2 f4 e9 fd 90 <0f> 0b e8 9a 33 82 fe 48 c7 c7 40 a3 a3 8b 48 c7 c6 39 9f a3 8b ba RSP: 0018:ffffc900018dfc68 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 70657984aead4600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000155d048 R08: ffffc900018df947 R09: 1ffff9200031bf28 R10: dffffc0000000000 R11: fffff5200031bf29 R12: dffffc0000000000 R13: 1ffff1100a53fbc7 R14: ffff8880529fde38 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88808d6cb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056382b921168 CR3: 000000001222d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400