Date: Wed, 12 Oct 2016 03:50:19 +0000 (UTC) From: Donald Baud <donaldbaud@yahoo.com> To: <net@freebsd.org> Subject: Re: FreeBSD10.3-RELEASE. Kernel panic. Message-ID: <BB5B617E05F25426.BD3D656C-A093-4CED-A8ED-57981A9449C7@mail.outlook.com> In-Reply-To: <CAJajdNUXOrzWDKVmSB1Xm_G6zqBhMsZ2vesDcAw2CPGFBU0xtg@mail.gmail.com> References: <CAAFYNruF4gFAiTCAhyRUQzcovW2osrKn4ehiuNR0btJCZbnOGg@mail.gmail.com> <57FC859F.5000200@grosbein.net> <CAJajdNUXOrzWDKVmSB1Xm_G6zqBhMsZ2vesDcAw2CPGFBU0xtg@mail.gmail.com>
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I've been plagued with these =3Ddaily=3D panics until I tried the following=
recipes and the server has been up for 30 days so far:=C2=A0
Normally I should expermient more to see which one of the recipes is really=
the fix, but I'm just glad that the server is stable for now.
recipe-1: Don't let mpd5 start automatically when server boots:i.e. in: /et=
c/rc.conf=C2=A0mpd5_enable=3D"NO"and wait about 5 minutes after server boot=
s then issue:=C2=A0/usr/local/etc/rc.d/mpd5 onestart
recipe-2: recompile the kernel with the NETGRAPH_DEBUG option:options =
NETGRAPH =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0options NETGRAPH_DEBUG =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0options NETGRAPH_KSOCKET=C2=A0=
options NETGRAPH_L2TPoptions NETGRAPH_SOCKEToptions =
NETGRAPH_TEEoptions NETGRAPH_VJCoptions NETGRAPH_PPPoption=
s NETGRAPH_IFACEoptions NETGRAPH_MPPC_COMPRESSIONoptions =
NETGRAPH_MPPC_ENCRYPTIONoptions NETGRAPH_TCPMSSoptions =
IPFIREWALL
recipe-3: recompile the kernel and disable the IPv6 and SCTP options:noopti=
ons INET6nooptions SCTP
recipe-4: Don't use any of the sysctl optimizations=C2=A0in other words I c=
ommented out all values in sysctl.conf:# net.graph.maxdgram=3D20480 (this =
is the default)# net.graph.recvspace=3D20480 (this is the default)
recipe-5: Don't use any of the loader.conf optimizationsin other words I co=
mmented out all values in loader.conf# net.graph.maxdata=3D4096 (this is t=
he default)# net.graph.maxalloc=3D4096 (this is the default)
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3DIn my case, I had the panics with 10.3 and 11-PRERELEA=
SE11.0-PRERELEASE FreeBSD 11.0-PRERELEASE #2 r305587
With those recipes, I have been running without any crash for a month and c=
ounting. That's 300 l2tp tunnels and 1400 l2tp sessions generating 700Mbit=
/s.
=09=09_____________________________
From: Cassiano Peixoto <peixotocassiano@gmail.com>
Sent: Tuesday, October 11, 2016 07:30
Subject: Re: FreeBSD10.3-RELEASE. Kernel panic.
To: Eugene Grosbein <eugen@grosbein.net>
Cc: <net@freebsd.org>, =D0=90=D0=BD=D0=B4=D1=80=D0=B5=D0=B9 =D0=9B=D0=B5=
=D1=83=D1=88=D0=BA=D0=B8=D0=BD <laa88rf@gmail.com>
Hi,
There are many users complaining about this:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D186114
I've been dealing with this issue for one year with no solution. mpd5 as
pppoe server on FreeBSD is useless with this bug.
I really would like to see it working again, i think it's quite important
to both project and many users.
Thanks.
On Tue, Oct 11, 2016 at 3:24 AM, Eugene Grosbein <eugen@grosbein.net> wrote=
:
> 11.10.2016 11:02, =D0=90=D0=BD=D0=B4=D1=80=D0=B5=D0=B9 =D0=9B=D0=B5=D1=83=
=D1=88=D0=BA=D0=B8=D0=BD =D0=BF=D0=B8=D1=88=D0=B5=D1=82:
>
>> Hello. I have problem with "FreeBSD nas 10.3-RELEASE FreeBSD 10.3-RELEAS=
E
>> #0: Fri Oct 7 21:12:56 YEKT 2016 nas@nas:/usr/obj/usr/src/sys/nasv3
>> amd64"
>>
>> Kernel panic is repeated at intervals of 2-3 days. At first I thought th=
at
>> the problem is in the hardware, but the problem did not go away after
>> replacing the server platform.
>>
>> Coredumps and more info on link
>> https://drive.google.com/open?id=3D0BxciMy2q7ZjTTkIxem9wTE1tM2M
>>
>> Sorry for my english.
>> I'll wait for an answer.
>>
>
> This is known and long-stanging problem in the FreeBSD network stack.
> It shows up when you have lots of network interfaced created/removed
> frequently
> like in your case of Network Access Server (PPtP, PPPoE etc).
>
> Generally, people run into this problem using mpd5 network daemon.
> mpd5 uses NETGRAPH kernel subsystem to process traffic and
> if an interface disappears (f.e., ,user disconnected)
> while kernel still processes traffic obtained from this interface, it
> panices.
>
> There were lots of reports of this problem. Noone seems to be working on
> it at the moment.
> You should fill a PR using Bugzilla and attach your logs to it.
>
> Eugene Grosbein
>
>
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>
_______________________________________________
freebsd-net@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
=09
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From: <donaldbaud@yahoo.com>
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<57FC859F.5000200@grosbein.net>
<CAJajdNUXOrzWDKVmSB1Xm_G6zqBhMsZ2vesDcAw2CPGFBU0xtg@mail.gmail.com>
Subject: Re: FreeBSD10.3-RELEASE. Kernel panic.
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I've been plagued with these =3Ddaily=3D panics until I tried the following=
recipes and the server has been up for 30 days so far:=20
Normally I should expermient more to see which one of the receipes is reall=
y the fix, but I'm just glad that the server is stable for now.
recipe-1: Don't let mpd5 start automatically when server boots:
i.e. in: /etc/rc.conf=20
mpd5_enable=3D"NO"
and wait about 5 minutes after server boots then issue:=20
/usr/local/etc/rc.d/mpd5 onestart
recipe-2: recompile the kernel with the NETGRAPH_DEBUG option:
options NETGRAPH=20
options NETGRAPH_DEBUG=20
options NETGRAPH_KSOCKET=20
options NETGRAPH_L2TP
options NETGRAPH_SOCKET
options NETGRAPH_TEE
options NETGRAPH_VJC
options NETGRAPH_PPP
options NETGRAPH_IFACE
options NETGRAPH_MPPC_COMPRESSION
options NETGRAPH_MPPC_ENCRYPTION
options NETGRAPH_TCPMSS
options IPFIREWALL
recipe-3: recompile the kernel and disable the IPv6 and SCTP options:
nooptions INET6
nooptions SCTP
recipe-4: Don't use any of the sysctl optimizations=20
in other words I commented out all values in sysctl.conf:
# net.graph.maxdgram=3D20480 (this is the default)
# net.graph.recvspace=3D20480 (this is the default)
recipe-5: Don't use any of the loader.conf optimizations
in other words I commented out all values in loader.conf
# net.graph.maxdata=3D4096 (this is the default)
# net.graph.maxalloc=3D4096 (this is the default)
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D
In my case, I had the panics with 10.3 and 11-PRERELEASE
11.0-PRERELEASE FreeBSD 11.0-PRERELEASE #2 r305587
With those recipes, I have been running without any crash for a month and c=
ounting. Thats' 300 l2tp tunnels and 1400 l2tp sessions generating 700Mbit=
/s.
-DBaud=20
On Tuesday, October 11, 2016 7:30 AM, Cassiano Peixoto <peixotocassiano@gma=
il.com> wrote:
Hi,
There are many users complaining about this:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D186114
I've been dealing with this issue for one year with no solution. mpd5 as
pppoe server on FreeBSD is useless with this bug.
I really would like to see it working again, i think it's quite important
to both project and many users.
Thanks.
On Tue, Oct 11, 2016 at 3:24 AM, Eugene Grosbein <eugen@grosbein.net> wrote=
:
> 11.10.2016 11:02, =D0=90=D0=BD=D0=B4=D1=80=D0=B5=D0=B9 =D0=9B=D0=B5=D1=83=
=D1=88=D0=BA=D0=B8=D0=BD =D0=BF=D0=B8=D1=88=D0=B5=D1=82:
>
>> Hello. I have problem with "FreeBSD nas 10.3-RELEASE FreeBSD 10.3-RELEAS=
E
>> #0: Fri Oct 7 21:12:56 YEKT 2016 nas@nas:/usr/obj/usr/src/sys/nasv3
>> amd64"
>>
>> Kernel panic is repeated at intervals of 2-3 days. At first I thought th=
at
>> the problem is in the hardware, but the problem did not go away after
>> replacing the server platform.
>>
>> Coredumps and more info on link
>> https://drive.google.com/open?id=3D0BxciMy2q7ZjTTkIxem9wTE1tM2M
>>
>> Sorry for my english.
>> I'll wait for an answer.
>>
>
> This is known and long-stanging problem in the FreeBSD network stack.
> It shows up when you have lots of network interfaced created/removed
> frequently
> like in your case of Network Access Server (PPtP, PPPoE etc).
>
> Generally, people run into this problem using mpd5 network daemon.
> mpd5 uses NETGRAPH kernel subsystem to process traffic and
> if an interface disappears (f.e., ,user disconnected)
> while kernel still processes traffic obtained from this interface, it
> panices.
>
> There were lots of reports of this problem. Noone seems to be working on
> it at the moment.
> You should fill a PR using Bugzilla and attach your logs to it.
>
> Eugene Grosbein
>
>
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>
_______________________________________________
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To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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