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Date:      Thu, 18 Jul 2024 17:23:23 -0700
From:      Kevin Oberman <rkoberman@gmail.com>
To:        FreeBSD Wireless <freebsd-wireless@freebsd.org>
Subject:   Panic when starting wireless on head n271247-a527b9cb721a
Message-ID:  <CAN6yY1ue3UsWsO2WnBcDVVcXOtZrhWaN9wAjVbkmHMTvf5XtkQ@mail.gmail.com>

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I attempted to update my development system to today's head. After
installing the kernel, etcupdate -p, reboot, installworld, etcupdate,
check-old, delete-old, reboot,, the system panicked when the system tried
starting the network.

System is a T16-Gen1 with the Alder Lake wifi. When starting the network,
it panics with:
 Fatal trap 12: page fault while in kernel mode
cpuid = 5; apic id = 12
fault virtual address   = 0xc
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff8359afd3
stack pointer           = 0x28:0xfffffe00f1341c80
frame pointer           = 0x28:0xfffffe00f1341d00
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 0 (linuxkpi_short_wq_1)
rdi: fffffe016695c4f8 rsi: fffffe00f1341c48 rdx: ffffffff8118971b
rcx: 0000000000000000  r8: 0000000000000001  r9: ffffffffffffffff
rax: 0000000000000000 rbx: fffffe0167886e80 rbp: fffffe00f1341d00
r10: 0000000000010000 r11: 0000000000000001 r12: fffffe0167887478
r13: 0000000000000000 r14: fffffe016695c4c8 r15: fffff80003bec540

I can supply the full core.txt file. The backtrace shows the following
items:
iwl_mvm_bt_notif_iterator() at iwl_mvm_bt_notif_iterator+0xf3/frame
0xfffffe00f1341d00
linuxkpi_ieee80211_iterate_interfaces() at
linuxkpi_ieee80211_iterate_interfaces+0x84/frame 0xfffffe00f1341d40
iwl_mvm_bt_coex_notif_handle() at iwl_mvm_bt_coex_notif_handle+0x7c/frame
0xfffffe00f1341da0
iwl_mvm_async_handlers_wk() at iwl_mvm_async_handlers_wk+0x110/frame
0xfffffe00f1341df0

Should I open a ticket or add to an existing one? I didn't see one with a
quick look.
-- 
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkoberman@gmail.com
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683

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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:tahoma,s=
ans-serif;font-size:small">I attempted to update my development system to t=
oday&#39;s head. After installing the kernel, etcupdate -p, reboot, install=
world, etcupdate, check-old, delete-old, reboot,, the system panicked when =
the system tried starting the network.</div><div class=3D"gmail_default" st=
yle=3D"font-family:tahoma,sans-serif;font-size:small"><br></div><div class=
=3D"gmail_default" style=3D"font-family:tahoma,sans-serif;font-size:small">=
System is a T16-Gen1 with the Alder Lake wifi. When starting the network, i=
t panics with:</div><div class=3D"gmail_default" style=3D"font-family:tahom=
a,sans-serif;font-size:small">=C2=A0Fatal trap 12: page fault while in kern=
el mode<br>cpuid =3D 5; apic id =3D 12<br>fault virtual address =C2=A0 =3D =
0xc<br>fault code =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D super=
visor read data, page not present<br>instruction pointer =C2=A0 =C2=A0 =3D =
0x20:0xffffffff8359afd3<br>stack pointer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =3D 0x28:0xfffffe00f1341c80<br>frame pointer =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =3D 0x28:0xfffffe00f1341d00<br>code segment =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0=3D base 0x0, limit 0xfffff, type 0x1b<br>=C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =3D D=
PL 0, pres 1, long 1, def32 0, gran 1<br>processor eflags =C2=A0 =C2=A0 =C2=
=A0 =C2=A0=3D interrupt enabled, resume, IOPL =3D 0<br>current process =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =3D 0 (linuxkpi_short_wq_1)<br>rdi: fffffe016695c4=
f8 rsi: fffffe00f1341c48 rdx: ffffffff8118971b<br>rcx: 0000000000000000 =C2=
=A0r8: 0000000000000001 =C2=A0r9: ffffffffffffffff<br>rax: 0000000000000000=
 rbx: fffffe0167886e80 rbp: fffffe00f1341d00<br>r10: 0000000000010000 r11: =
0000000000000001 r12: fffffe0167887478<br>r13: 0000000000000000 r14: fffffe=
016695c4c8 r15: fffff80003bec540<br></div><div class=3D"gmail_default" styl=
e=3D"font-family:tahoma,sans-serif;font-size:small">=C2=A0<br clear=3D"all"=
></div><div style=3D"font-family:tahoma,sans-serif;font-size:small" class=
=3D"gmail_default">I can supply the full core.txt file. The backtrace shows=
 the following items:</div><div style=3D"font-family:tahoma,sans-serif;font=
-size:small" class=3D"gmail_default">iwl_mvm_bt_notif_iterator() at iwl_mvm=
_bt_notif_iterator+0xf3/frame 0xfffffe00f1341d00<br>linuxkpi_ieee80211_iter=
ate_interfaces() at linuxkpi_ieee80211_iterate_interfaces+0x84/frame 0xffff=
fe00f1341d40<br>iwl_mvm_bt_coex_notif_handle() at iwl_mvm_bt_coex_notif_han=
dle+0x7c/frame 0xfffffe00f1341da0<br>iwl_mvm_async_handlers_wk() at iwl_mvm=
_async_handlers_wk+0x110/frame 0xfffffe00f1341df0</div><div style=3D"font-f=
amily:tahoma,sans-serif;font-size:small" class=3D"gmail_default">=C2=A0<br>=
</div><div style=3D"font-family:tahoma,sans-serif;font-size:small" class=3D=
"gmail_default">Should I open a ticket or add to an existing one? I didn&#3=
9;t see one with a quick look.<br></div><span class=3D"gmail_signature_pref=
ix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature" data-smartmail=
=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=
=3D"ltr"><div><div dir=3D"ltr">Kevin Oberman, Part time kid herder and reti=
red Network Engineer<br>E-mail: <a href=3D"mailto:rkoberman@gmail.com" targ=
et=3D"_blank">rkoberman@gmail.com</a><br></div><div>PGP Fingerprint: D03FB9=
8AFA78E3B78C1694B318AB39EF1B055683</div></div></div></div></div></div></div=
></div></div>

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