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Date:      Fri, 13 Dec 2024 06:14:49 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 267028] kernel panics when booting with both (zfs,ko or vboxnetflt,ko or acpi_wmi.ko) and amdgpu.ko
Message-ID:  <bug-267028-227-FYzIsxq9EX@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-267028-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-267028-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D267028

--- Comment #228 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
In kgdb based on the kernel and system crash core file (and related),
it be possible to do a sequence like:

(kgdb) print *found_modules->tqh_first
$51 =3D {link =3D {tqe_next =3D 0xfffff8010175d340, tqe_prev =3D 0xffffffff=
81b8e218
<found_modules>}, container =3D 0xfffff80101918c00, name =3D 0xffffffff8111=
3803
"cam", version =3D 1}
(kgdb) print *found_modules->tqh_first->link->tqe_next
$52 =3D {link =3D {tqe_next =3D 0xfffff8010175d300, tqe_prev =3D 0xfffff801=
0175d380},
container =3D 0xfffff80101918c00, name =3D 0xffffffff811e1b57 "xz", version=
 =3D 1}
(kgdb) print *found_modules->tqh_first->link->tqe_next->link->tqe_next
$53 =3D {link =3D {tqe_next =3D 0xfffff8010175d2c0, tqe_prev =3D 0xfffff801=
0175d340},
container =3D 0xfffff80101918c00, name =3D 0xffffffff8123ecdc "acpi", versi=
on =3D 1}
. . .
until the problematical name field is shown (bad
pointer or non-terminated string.

This should allow reporting what the last good name is and
what the failing example looks like.

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