Re: kern/48104: Incorrect forwarding of broadcast packets by bridge(4)

[dieter roelants <dieter.NetBSD%pandora.be@localhost>]

The following reply was made to PR kern/48104; it has been noted by GNATS.

From: dieter roelants <dieter.NetBSD%pandora.be@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/48104: Incorrect forwarding of broadcast packets by bridge(4)
Date: Thu, 31 Oct 2013 16:48:59 +0100

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 I can now no longer reproduce this panic but I don't know why. If I screwed
 up then, it must have been something in the config, because I applied the
 same patch file as last time.
 
 
 On Mon, Oct 28, 2013 at 5:12 PM, dieter roelants
 <dieter.NetBSD%pandora.be@localhost>wrote:
 >
 >
 > I forgot about it but I had applied your patch on a system running as Xen
 > dom-0 and it made it panic upon starting the first (ipv6-enabled) dom-U.
 > The panic message was:
 > "m_copydata: m = NULL, len = 67502046"
 > and it appeared right after the following message
 > "xvif1i0: discarding oversize frame (len = 67502088)".
 > The backtrace looked like this:
 >
 > vpanic
 > printf_nolog
 > m_copydata at netbsd:m_copy_data+0xbb
 > xennetback_if_softstart_copy+0x30b
 > softint_thread+0x5a
 >
 > (I scribbled it down on a piece of paper at the time, so there may be
 > typos in there...)
 >
 > kind regards
 > dieter
 >
 
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 <div dir=3D"ltr"><div><br></div>I can now no longer reproduce this panic bu=
 t I don&#39;t know why. If I screwed up then, it must have been something i=
 n the config, because I applied the same patch file as last time.<br><br><b=
 r>
 <div><div class=3D"gmail_extra"><div class=3D"gmail_quote">
 On Mon, Oct 28, 2013 at 5:12 PM, dieter roelants <span dir=3D"ltr">&lt;<a h=
 ref=3D"mailto:dieter.NetBSD%pandora.be@localhost"; 
target=3D"_blank">dieter.NetBSD@pan=
 dora.be</a>&gt;</span> wrote:<blockquote class=3D"gmail_quote" style=3D"mar=
 gin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
 
 <div dir=3D"ltr"><br><div class=3D"gmail_extra">I forgot about it but I had=
  applied your patch on a system running as Xen dom-0 and it made it panic u=
 pon starting the first (ipv6-enabled) dom-U. The panic message was:<br>&quo=
 t;m_copydata: m =3D NULL, len =3D 67502046&quot;<br>
 
 
 and it appeared right after the following message<br>&quot;xvif1i0: discard=
 ing oversize frame (len =3D 67502088)&quot;.<br>The backtrace looked like t=
 his:<br><br></div><div class=3D"gmail_extra">vpanic<br></div><div class=3D"=
 gmail_extra">
 
 
 printf_nolog<br></div><div class=3D"gmail_extra">m_copydata at netbsd:m_cop=
 y_data+0xbb<br></div><div class=3D"gmail_extra">xennetback_if_softstart_cop=
 y+0x30b<br></div><div class=3D"gmail_extra">softint_thread+0x5a<br><br></di=
 v>
 
 
 <div class=3D"gmail_extra">(I scribbled it down on a piece of paper at the =
 time, so there may be typos in there...)<br><br></div><div>kind regards<spa=
 n><font color=3D"#888888"><br>dieter</font></span> <br></div></div></blockq=
 uote>
 </div><br></div></div></div>
 
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