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Date:      Thu, 8 Dec 2022 11:11:15 -0500
From:      John Jasen <jjasen@gmail.com>
To:        FreeBSD Net <freebsd-net@freebsd.org>, FreeBSD Net <freebsd-pf@freebsd.org>
Subject:   crash and panic using pfsync on 13.1-RELEASE (Bug 268246)
Message-ID:  <CAACLuR0WwpssOh%2BAcagbQaCB0=6DTGC_0JRAAU4qDjeX8WQfrw@mail.gmail.com>

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Hi folks -- I opened this on Freebsd 13.1.

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268246

I'm stumped, as I have about half a dozen other systems just like this one,
which do not exhibit this condition.

Don't know if it matters, but this is the backup firewall in a carp
configuration.


kgdb /usr/lib/debug/boot/kernel/kernel.debug /var/crash/vmcore.0

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x18
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff80cadb90
stack pointer           = 0x28:0xfffffe0204794bc0
frame pointer           = 0x28:0xfffffe0204794c20
code segment            = base r
<https://svnweb.freebsd.org/changeset/base/>x0, limit 0xfffff, type
0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 12 (swi1: pfsync)
trap number             = 12
panic: page fault
cpuid = 0
time = 1670433489
KDB: stack backtrace:
#0 0xffffffff80c694a5 at kdb_backtrace+0x65
#1 0xffffffff80c1bb5f at vpanic+0x17f
#2 0xffffffff80c1b9d3 at panic+0x43
#3 0xffffffff810afdf5 at trap_fatal+0x385
#4 0xffffffff810afe4f at trap_pfault+0x4f
#5 0xffffffff810875b8 at calltrap+0x8
#6 0xffffffff80dca82f at ip_fragment+0x24f
#7 0xffffffff80dca1e3 at ip_output+0x1163
#8 0xffffffff8225a851 at pfsyncintr+0x151
#9 0xffffffff80bdbcfa at ithread_loop+0x25a
#10 0xffffffff80bd8a9e at fork_exit+0x7e
#11 0xffffffff8108862e at fork_trampoline+0xe
Uptime: 43m36s
Dumping 7356 out of 130983 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%

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<div dir=3D"ltr"><div>Hi folks -- I opened this on Freebsd 13.1.</div><div>=
<br></div><div><a href=3D"https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=
=3D268246">https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D268246</a></=
div><div><br></div><div>I&#39;m stumped, as I have about half a dozen other=
 systems just like this one, which do not exhibit this condition. <br></div=
><div><br></div><div>Don&#39;t know if it matters, but this is the backup f=
irewall in a carp configuration. <br></div><div><br></div><div><br></div><d=
iv>kgdb /usr/lib/debug/boot/kernel/kernel.debug /var/crash/vmcore.0
<pre class=3D"gmail-bz_comment_text" id=3D"gmail-comment_text_0" style=3D"f=
ont-size:small;font-family:monospace;white-space:pre-wrap;width:50em;paddin=
g-left:0.5em;padding-right:0.5em;color:rgb(0,0,0);font-style:normal;font-va=
riant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spac=
ing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacin=
g:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-=
decoration-color:initial">Fatal trap 12: page fault while in kernel mode
cpuid =3D 0; apic id =3D 00
fault virtual address   =3D 0x18
fault code              =3D supervisor read data, page not present
instruction pointer     =3D 0x20:0xffffffff80cadb90
stack pointer           =3D 0x28:0xfffffe0204794bc0
frame pointer           =3D 0x28:0xfffffe0204794c20
code segment            =3D <a href=3D"https://svnweb.freebsd.org/changeset=
/base/" title=3D"revision  in base" style=3D"color:rgb(153,0,0)">base r</a>=
x0, limit 0xfffff, type 0x1b
                        =3D DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        =3D interrupt enabled, resume, IOPL =3D 0
current process         =3D 12 (swi1: pfsync)
trap number             =3D 12
panic: page fault
cpuid =3D 0
time =3D 1670433489
KDB: stack backtrace:
#0 0xffffffff80c694a5 at kdb_backtrace+0x65
#1 0xffffffff80c1bb5f at vpanic+0x17f
#2 0xffffffff80c1b9d3 at panic+0x43
#3 0xffffffff810afdf5 at trap_fatal+0x385
#4 0xffffffff810afe4f at trap_pfault+0x4f
#5 0xffffffff810875b8 at calltrap+0x8
#6 0xffffffff80dca82f at ip_fragment+0x24f
#7 0xffffffff80dca1e3 at ip_output+0x1163
#8 0xffffffff8225a851 at pfsyncintr+0x151
#9 0xffffffff80bdbcfa at ithread_loop+0x25a
#10 0xffffffff80bd8a9e at fork_exit+0x7e
#11 0xffffffff8108862e at fork_trampoline+0xe
Uptime: 43m36s
Dumping 7356 out of 130983 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%.=
.91%</pre>

</div></div>

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