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Date:      Mon, 04 Oct 2021 18:13:23 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 258932] panic: vm_page_free_prep: freeing mapped
Message-ID:  <bug-258932-227-977LXoop79@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-258932-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-258932-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D258932

--- Comment #2 from Bryan Drewery <bdrewery@FreeBSD.org> ---
(In reply to Mark Johnston from comment #1)

> If the system is still in DDB, can you show output from the following:
>=20
> db> x/gx 0xfffffe006b2d0510


db> x/gx 0xfffffe006b2d0510
0xfffffe006b2d0510:     fffff80b88576460

> This should print the address of the first element of the page's pv list,=
 should > be an address of the form 0xffff8.*.  Then show the dword at that=
 address:
>=20
> db> x/gx 0xffff8...
>

db> x/gx 0xfffff80b88576460
0xfffff80b88576460:     811be5000

> Then do
>
> db> show pte <addr printed by the last command>


db> show pte 811be5000
VA 0x0000000811be5000 pml4e 0x0000000000000000

--=20
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