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Date:      Wed, 19 Aug 2015 09:07:16 -0700
From:      David Wolfskill <david@catwhisker.org>
To:        stable@freebsd.org, net@freebsd.org
Subject:   Re: Panic [page fault] in _ieee80211_crypto_delkey(): stable/10/amd64 @r286878
Message-ID:  <20150819160716.GK63584@albert.catwhisker.org>
In-Reply-To: <20150818232007.GN1189@albert.catwhisker.org>
References:  <20150818232007.GN1189@albert.catwhisker.org>

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On Tue, Aug 18, 2015 at 04:20:07PM -0700, David Wolfskill wrote:
> I was minding my own business in a staff meeting this afternoon, and my
> laptop rebooted; seems it got a panic.  I've copied the core.txt.0 file
> to <http://www.catwhisker.org/~david/FreeBSD/stable_10/>, along with a
> verbose dmesg.boot from this morning and output of "pciconf -l -v".
>=20
> This was running:
> FreeBSD localhost 10.2-STABLE FreeBSD 10.2-STABLE #122  r286878M/286880:1=
002500: Tue Aug 18 04:06:33 PDT 2015     root@g1-252.catwhisker.org:/common=
/S1/obj/usr/src/sys/CANARY  amd64
> ....

And this morning (just after I got in to work, and was trying (and
trying) to get re-associated with the AP at work), I had another one.

I've copied the resulting core.txt.1 over to
http://www.cawhisker.org:~david/FreeBSD/stable_10/ as well; here are
excerpts from a unidiff between core.txt.{0,1}:

--- core.txt.0  2015-08-18 15:39:05.232251000 -0700
+++ core.txt.1  2015-08-19 08:56:37.686238000 -0700
@@ -1,8 +1,8 @@
-localhost dumped core - see /var/crash/vmcore.0
+localhost dumped core - see /var/crash/vmcore.1
=20
-Tue Aug 18 15:39:02 PDT 2015
+Wed Aug 19 08:56:35 PDT 2015
=20
-FreeBSD localhost 10.2-STABLE FreeBSD 10.2-STABLE #122  r286878M/286880:10=
02500: Tue Aug 18 04:06:33 PDT 2015     root@g1-252.catwhisker.org:/common/=
S1/obj/usr/src/sys/CANARY  amd64
+FreeBSD localhost 10.2-STABLE FreeBSD 10.2-STABLE #123  r286912M/286918:10=
02500: Wed Aug 19 04:05:06 PDT 2015     root@g1-252.catwhisker.org:/common/=
S1/obj/usr/src/sys/CANARY  amd64
=20
 panic: page fault
=20
@@ -16,7 +16,7 @@
=20
 Unread portion of the kernel message buffer:
 panic: page fault
-cpuid =3D 2
+cpuid =3D 1
 KDB: stack backtrace:
 #0 0xffffffff80946e00 at kdb_backtrace+0x60
 #1 0xffffffff8090a9e6 at vpanic+0x126
@@ -34,8 +34,8 @@
 #13 0xffffffff8095e9f0 at sys_ioctl+0x140
 #14 0xffffffff80c84f97 at amd64_syscall+0x357
 #15 0xffffffff80c6a49b at Xfast_syscall+0xfb
-Uptime: 9h45m0s
-Dumping 625 out of 8095 MB:..3%..11%..21%..31%..41%..52%..62%..72%..82%..9=
3%
+Uptime: 3h16m49s
+Dumping 584 out of 8095 MB:..3%..11%..22%..31%..42%..53%..61%..72%..83%..9=
1%
=20
 Reading symbols from /boot/kernel/geom_eli.ko.symbols...done.
 Loaded symbols for /boot/kernel/geom_eli.ko.symbols
@@ -81,32 +81,32 @@
     at /usr/src/sys/kern/kern_shutdown.c:687
 #4  0xffffffff80c8467b in trap_fatal (frame=3D<value optimized out>,=20
     eva=3D<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:851
-#5  0xffffffff80c8497d in trap_pfault (frame=3D0xfffffe060d88b510,=20
+#5  0xffffffff80c8497d in trap_pfault (frame=3D0xfffffe060d5ea510,=20
     usermode=3D<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:6=
74
-#6  0xffffffff80c8401a in trap (frame=3D0xfffffe060d88b510)
+#6  0xffffffff80c8401a in trap (frame=3D0xfffffe060d5ea510)
     at /usr/src/sys/amd64/amd64/trap.c:440
 #7  0xffffffff80c6a1b2 in calltrap ()
     at /usr/src/sys/amd64/amd64/exception.S:236
 #8  0xffffffff809f003a in _ieee80211_crypto_delkey ()
     at /usr/src/sys/net80211/ieee80211_crypto.c:105
-#9  0xffffffff809eff5e in ieee80211_crypto_delkey (vap=3D0xfffffe03d907000=
0,=20
-    key=3D0xfffffe03d9070800) at /usr/src/sys/net80211/ieee80211_crypto.c:=
461
-#10 0xffffffff80a04d45 in ieee80211_ioctl_delkey (vap=3D0xfffffe03d9070000=
,=20
+#9  0xffffffff809eff5e in ieee80211_crypto_delkey (vap=3D0xfffffe03dd31a00=
0,=20
+    key=3D0xfffffe03dd31a800) at /usr/src/sys/net80211/ieee80211_crypto.c:=
461
+#10 0xffffffff80a04d45 in ieee80211_ioctl_delkey (vap=3D0xfffffe03dd31a000=
,=20
     ireq=3D<value optimized out>)
     at /usr/src/sys/net80211/ieee80211_ioctl.c:1252
 #11 0xffffffff80a03bd2 in ieee80211_ioctl_set80211 ()
     at /usr/src/sys/net80211/ieee80211_ioctl.c:2814
 #12 0xffffffff80a2c323 in in_control (so=3D<value optimized out>,=20
-    cmd=3D9214790412651315593, data=3D0xfffffe060d88bb80 "", ifp=3D0x3,=20
+    cmd=3D9214790412651315593, data=3D0xfffffe060d5eab80 "", ifp=3D0x3,=20
     td=3D<value optimized out>) at /usr/src/sys/netinet/in.c:308
-#13 0xffffffff809cd57b in ifioctl (so=3D0xfffffe03d9070800, cmd=3D21496079=
14,=20
-    data=3D0xfffffe060d88b8e0 "wlan0", td=3D0xfffff80170abb940)
+#13 0xffffffff809cd57b in ifioctl (so=3D0xfffffe03dd31a800, cmd=3D21496079=
14,=20
+    data=3D0xfffffe060d5ea8e0 "wlan0", td=3D0xfffff800098b5940)
     at /usr/src/sys/net/if.c:2770
-#14 0xffffffff8095ecf5 in kern_ioctl (td=3D0xfffff80170abb940,=20
-    fd=3D<value optimized out>, com=3D18446741891212314624) at file.h:320
-#15 0xffffffff8095e9f0 in sys_ioctl (td=3D0xfffff80170abb940,=20
-    uap=3D0xfffffe060d88ba40) at /usr/src/sys/kern/sys_generic.c:718
-#16 0xffffffff80c84f97 in amd64_syscall (td=3D0xfffff80170abb940, traced=
=3D0)
+#14 0xffffffff8095ecf5 in kern_ioctl (td=3D0xfffff800098b5940,=20
+    fd=3D<value optimized out>, com=3D18446741891282216960) at file.h:320
+#15 0xffffffff8095e9f0 in sys_ioctl (td=3D0xfffff800098b5940,=20
+    uap=3D0xfffffe060d5eaa40) at /usr/src/sys/kern/sys_generic.c:718
+#16 0xffffffff80c84f97 in amd64_syscall (td=3D0xfffff800098b5940, traced=
=3D0)
     at subr_syscall.c:134
 #17 0xffffffff80c6a49b in Xfast_syscall ()
     at /usr/src/sys/amd64/amd64/exception.S:396
@@ -118,305 +118,301 @@
 ------------------------------------------------------------------------
=2E...


So it looks to me to be quite similar to the previous one.

I've also copied the kernel config file ("CANARY") to the above-cited
Web page.

Anything else I can do to help nail this?

Peace,
david
--=20
David H. Wolfskill				david@catwhisker.org
Those who would murder in the name of God or prophet are blasphemous coward=
s.

See http://www.catwhisker.org/~david/publickey.gpg for my public key.

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