BUG at fs/jfs/jfs_txnmgr.c:2340 assert(mp->nohomeok == 1) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:2340! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 133 Comm: jfsCommit Not tainted 6.9.0-syzkaller-10713-g2a8120d7b482 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:txUpdateMap+0xc8b/0xd20 fs/jfs/jfs_txnmgr.c:2340 Code: e9 5c f9 ff ff e8 d5 fd 82 fe 48 c7 c1 00 f4 6a 8b ba 24 09 00 00 48 c7 c6 80 e7 6a 8b 48 c7 c7 c0 e7 6a 8b e8 c6 9d 63 fe 90 <0f> 0b 48 89 df e8 7b 32 e0 fe e9 e1 f8 ff ff e8 31 33 e0 fe e9 a8 RSP: 0000:ffffc900020c7ce0 EFLAGS: 00010286 RAX: 0000000000000039 RBX: ffff88805f267580 RCX: ffffffff816f3519 RDX: 0000000000000000 RSI: ffffffff816fc096 RDI: 0000000000000005 RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffc900022ea120 R13: 0000000000000001 R14: ffffc900022ea124 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88802c000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f76f6e2f760 CR3: 00000000294c0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline] jfs_lazycommit+0x5e6/0xb20 fs/jfs/jfs_txnmgr.c:2733 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUpdateMap+0xc8b/0xd20 fs/jfs/jfs_txnmgr.c:2340 Code: e9 5c f9 ff ff e8 d5 fd 82 fe 48 c7 c1 00 f4 6a 8b ba 24 09 00 00 48 c7 c6 80 e7 6a 8b 48 c7 c7 c0 e7 6a 8b e8 c6 9d 63 fe 90 <0f> 0b 48 89 df e8 7b 32 e0 fe e9 e1 f8 ff ff e8 31 33 e0 fe e9 a8 RSP: 0000:ffffc900020c7ce0 EFLAGS: 00010286 RAX: 0000000000000039 RBX: ffff88805f267580 RCX: ffffffff816f3519 RDX: 0000000000000000 RSI: ffffffff816fc096 RDI: 0000000000000005 RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffc900022ea120 R13: 0000000000000001 R14: ffffc900022ea124 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88802c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7a37f24488 CR3: 00000000294c0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400