From owner-freebsd-current@FreeBSD.ORG Sun Mar 25 18:49:00 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id AD4BD16A402 for ; Sun, 25 Mar 2007 18:49:00 +0000 (UTC) (envelope-from nb_root@videotron.ca) Received: from relais.videotron.ca (relais.videotron.ca [24.201.245.36]) by mx1.freebsd.org (Postfix) with ESMTP id 8513513C458 for ; Sun, 25 Mar 2007 18:49:00 +0000 (UTC) (envelope-from nb_root@videotron.ca) Received: from clk01a ([24.202.150.69]) by VL-MH-MR002.ip.videotron.ca (Sun Java System Messaging Server 6.2-2.05 (built Apr 28 2005)) with ESMTP id <0JFH00F6L05NOSB0@VL-MH-MR002.ip.videotron.ca> for freebsd-current@freebsd.org; Sun, 25 Mar 2007 13:49:00 -0400 (EDT) Date: Sun, 25 Mar 2007 13:48:58 -0400 From: Nicolas Blais In-reply-to: <20070325165843.GA1558@kobe.laptop> To: freebsd-current@freebsd.org Message-id: <200703251348.58972.nb_root@videotron.ca> MIME-version: 1.0 Content-type: multipart/signed; boundary=nextPart5596178.avFzQm9Z5a; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-transfer-encoding: 7bit References: <20070324124732.GA767@nagual.pp.ru> <20070325165843.GA1558@kobe.laptop> User-Agent: KMail/1.9.6 Subject: Re: Latest -current complete lockup (tcp changes?) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Mar 2007 18:49:00 -0000 --nextPart5596178.avFzQm9Z5a Content-Type: text/plain; charset="iso-8859-7" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline > The panic happens after a small amount of network activity, inside the > TCP SACK code: > > -------------------------------------------------------------------------= =2D- > Physical memory: 495 MB > Dumping 54 MB: 39 23 7 > > #0 doadump () at pcpu.h:172 > 172 pcpu.h: No such file or directory. > in pcpu.h > (kgdb) bt > #0 doadump () at pcpu.h:172 > #1 0xc048043f in db_fncall (dummy1=3D-747300744, dummy2=3D0, > dummy3=3D-1065545344, dummy4=3D0xd3751854 "@\037\206=C0") at > /home/build/src/sys/ddb/db_command.c:486 #2 0xc048024b in db_command > (last_cmdp=3D0xc07dec24, cmd_table=3D0x0) at > /home/build/src/sys/ddb/db_command.c:401 #3 0xc0480306 in db_command_loop > () at /home/build/src/sys/ddb/db_command.c:453 #4 0xc0481f51 in db_trap > (type=3D3, code=3D0) at /home/build/src/sys/ddb/db_main.c:222 #5 0xc058a= 574 in > kdb_trap (type=3D3, code=3D0, tf=3D0xd37519ec) at > /home/build/src/sys/kern/subr_kdb.c:502 #6 0xc07164c9 in trap > (frame=3D0xd37519ec) at /home/build/src/sys/i386/i386/trap.c:621 #7=20 > 0xc070041b in calltrap () at /home/build/src/sys/i386/i386/exception.s:139 > #8 0xc058a29b in kdb_enter (msg=3D0x12
) at > cpufunc.h:60 #9 0xc056b628 in panic (fmt=3D0xc0776652 "%s: SACK invalid"= ) at > /home/build/src/sys/kern/kern_shutdown.c:547 #10 0xc0627513 in > tcp_sack_doack (tp=3D0xc300f740, to=3D0xd3751ac8, th_ack=3D3759729646) at > /home/build/src/sys/netinet/tcp_sack.c:374 #11 0xc0623f88 in tcp_do_segme= nt > (m=3D0xc310ca00, th=3D0xc3140834, so=3D0xc3020570, tp=3D0xc300f740, drop_= hdrlen=3D52, > tlen=3D138) at /home/build/src/sys/netinet/tcp_input.c:1900 #12 0xc0622f0= 1 in > tcp_input (m=3D0xc310ca00, off0=3D20) at > /home/build/src/sys/netinet/tcp_input.c:1004 #13 0xc061c3a5 in ip_input > (m=3D0xc310ca00) at /home/build/src/sys/netinet/ip_input.c:662 #14 0xc05e= e3c4 > in netisr_dispatch (num=3D2, m=3D0x0) at /home/build/src/sys/net/netisr.c= :278 > #15 0xc05e7f85 in ether_demux (ifp=3D0xc2a55800, m=3D0xc310ca00) at > /home/build/src/sys/net/if_ethersubr.c:829 #16 0xc05e7dc5 in ether_input > (ifp=3D0xc2a55800, m=3D0xc310ca00) at > /home/build/src/sys/net/if_ethersubr.c:687 #17 0xc04bdb18 in fxp_intr_body > (sc=3D0xc2a74000, ifp=3D0xc2a55800, statack=3D0 '\0', count=3D-1) at > /home/build/src/sys/dev/fxp/if_fxp.c:1705 #18 0xc04bd871 in fxp_intr > (xsc=3D0xc2a74000) at /home/build/src/sys/dev/fxp/if_fxp.c:1526 #19 > 0xc0556d85 in ithread_execute_handlers (p=3D0xc2a4f480, ie=3D0xc2976800) = at > /home/build/src/sys/kern/kern_intr.c:682 #20 0xc0556eab in ithread_loop > (arg=3D0xc2a7bad0) at /home/build/src/sys/kern/kern_intr.c:766 #21 0xc055= 5e84 > in fork_exit (callout=3D0xc0556e44 , arg=3D0xc2a7bad0, > frame=3D0xd3751d38) at /home/build/src/sys/kern/kern_fork.c:814 #22 > 0xc0700490 in fork_trampoline () at > /home/build/src/sys/i386/i386/exception.s:205 (kgdb) up 10 > #10 0xc0627513 in tcp_sack_doack (tp=3D0xc300f740, to=3D0xd3751ac8, > th_ack=3D3759729646) at /home/build/src/sys/netinet/tcp_sack.c:374 374 = =20 > KASSERT(to->to_flags & TOF_SACK, ("%s: SACK invalid", __func__)); > (kgdb) list > 369 struct sackhole *cur, *temp; > 370 struct sackblk sack, sack_blocks[TCP_MAX_SACK + 1], *sblk= p; > 371 int i, j, num_sack_blks; > 372 > 373 INP_LOCK_ASSERT(tp->t_inpcb); > 374 KASSERT(to->to_flags & TOF_SACK, ("%s: SACK invalid", > __func__)); 375 > 376 num_sack_blks =3D 0; > 377 /* > 378 * If SND.UNA will be advanced by SEG.ACK, and if SACK > holes exist, (kgdb) > -------------------------------------------------------------------------= =2D- > > Disabling SACK lets me use my laptop again: > > net.inet.tcp.sack.enable=3D0 > > without any panics. Same here. If you want to quickly crash your system,=20 net.inet.tcp.sack.enable=3D1 and start a torrent :) I couldn't find what was causing my desktop to crash until I STOPPED trying= to=20 restart my torrent after boot :) . Though net.inet.tcp.sack.enable=3D0 fixe= d=20 it. Nicolas. =2D-=20 =46reeBSD 7.0-CURRENT #17: Sun Mar 25 10:07:13 EDT 2007 =20 root@clk01a:/usr/obj/usr/src/sys/CLK01A=20 PGP? : http://plaintext.clkroot.net/security/nb_root.asc --nextPart5596178.avFzQm9Z5a Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQBGBrYK4wTBlvcsbJURAto2AKCmfkFrHnhTed/eNgTkaEWKYJsjlQCfTVzO KFSgUTUojrrhtzgHA2dTu54= =kFja -----END PGP SIGNATURE----- --nextPart5596178.avFzQm9Z5a--