From owner-freebsd-stable Fri Jul 23 2: 9:10 1999 Delivered-To: freebsd-stable@freebsd.org Received: from ipt2.iptelecom.net.ua (ipt2.iptelecom.net.ua [212.42.68.2]) by hub.freebsd.org (Postfix) with ESMTP id 8A18014ED0 for ; Fri, 23 Jul 1999 02:09:03 -0700 (PDT) (envelope-from sobomax@altavista.net) Received: from vega. (dialup3-54.iptelecom.net.ua [212.42.69.245]) by ipt2.iptelecom.net.ua (8.9.3/8.9.3) with ESMTP id MAA06019; Fri, 23 Jul 1999 12:14:50 +0300 (EEST) Received: from altavista.net (big_brother [192.168.1.1]) by vega. (8.9.3/8.9.3) with ESMTP id LAA01773; Fri, 23 Jul 1999 11:38:05 +0300 (EEST) (envelope-from sobomax@altavista.net) Message-ID: <379829EC.A575FC89@altavista.net> Date: Fri, 23 Jul 1999 11:38:04 +0300 From: Maxim Sobolev Reply-To: sobomax@altavista.net Organization: Vega International Capital X-Mailer: Mozilla 4.61 [en] (WinNT; I) X-Accept-Language: ru,uk,en MIME-Version: 1.0 To: Alfred Perlstein Cc: stable@FreeBSD.ORG Subject: Re: Tun interface related panic References: Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Alfred Perlstein wrote: > On Thu, 22 Jul 1999, Maxim Sobolev wrote: > > > Hi folks, > > > > In order to make Real Player (G2 for Windows) work via my dial-on-demand > > connection to the Internet I slightly modified my ppp.conf and > > discovered that when I'm trying to connect to any realaudio server my > > old good FreeBSD box paniced with a 100% correlation (checked 3 times). > > This machine is a pretty old (Dell P60), but nevertheless it was stable > > before this incident and didn't give me any troubles since 2.2.7 release > > was installed there 1.5 years ago. Now it runs 3.2-STABLE, last cvsup'ed > > and built 5 days ago. Below you can find all relevant to this panic > > info. > > > > In case any other info will be necessary please let me know directly by > > e-mail because I'm not subscribed on the -stable list. I will wait > > awhile and will not delete this horrible vmcore.0 file. > > excelent bug report, can you please give me additional information > though? Nice to hear ;). Of course I'll give any info related to this panic. > when entering gdb, please try to show me the variables in the > tunwrite function, for some reason i think it's barfing becasue > of a zero length write but i'm unsure. > > use the "up" command to get to tunwrite > then "list" and try to show me the output > of "print uio, top, mp" seperate though. > > try to give me as many vars as possible in the function via print. Following is information you have requested (if I did something wrong, please let me know with exact instructions): (kgdb) up #5 0xc01630f9 in tunwrite (dev=13312, uio=0xc2d15f14, flag=1) at ../../net/if_tun.c:559 559 top->m_pkthdr.len = tlen; (kgdb) list 554 if (top) 555 m_freem (top); 556 return error; 557 } 558 559 top->m_pkthdr.len = tlen; 560 top->m_pkthdr.rcvif = ifp; 561 562 #if NBPFILTER > 0 563 if (ifp->if_bpf) { (kgdb) print top $1 = (struct mbuf *) 0x0 (kgdb) print uio $2 = (struct uio *) 0xc2d15f14 (kgdb) print mp $3 = (struct mbuf **) 0xc2d15e28 (kgdb) print tlen $4 = 0 (kgdb) print ifp $5 = (struct ifnet *) 0xc0225a84 (kgdb) q -Maxim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message