From owner-freebsd-current@FreeBSD.ORG Wed May 7 19:24:58 2014 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 9982FCE7 for ; Wed, 7 May 2014 19:24:58 +0000 (UTC) Received: from mail.ignoranthack.me (ujvl.x.rootbsd.net [199.102.79.106]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 7AB751DE for ; Wed, 7 May 2014 19:24:57 +0000 (UTC) Received: from [192.168.1.134] (c-24-23-222-205.hsd1.ca.comcast.net [24.23.222.205]) (using SSLv3 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: sbruno@ignoranthack.me) by mail.ignoranthack.me (Postfix) with ESMTPSA id 2200E1928E4 for ; Wed, 7 May 2014 19:24:56 +0000 (UTC) Subject: New and exciting panic, possibly re(4) From: Sean Bruno Reply-To: sbruno@freebsd.org To: current@freebsd.org Content-Type: text/plain; charset="UTF-8" Date: Wed, 07 May 2014 12:24:55 -0700 Message-ID: <1399490695.1316.4.camel@alice> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18 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: Wed, 07 May 2014 19:24:58 -0000 While screwing around with comcast, I can trivially get this panic out of my desktop machine, and am very confused. It seems to happen on link change up/down events. I'm running 11.0-CURRENT FreeBSD 11.0-CURRENT #5 r265280M. I don't have any direct evidence that this is re(4), just a hunch from some discussions in clusteradm@ This can happen when reconnecting my modem or simply issues a netif restart. Fatal trap 9: general protection fault while in kernel mode cpuid = 5; apic id = 15 instruction pointer = 0x20:0xffffffff80a4429e stack pointer = 0x28:0xfffffe046a7f5530 frame pointer = 0x28:0xfffffe046a7f55d0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 1306 (ifconfig) trap number = 9 panic: general protection fault cpuid = 5 KDB: stack backtrace: #0 0xffffffff80998510 at kdb_backtrace+0x60 #1 0xffffffff80959d05 at panic+0x155 #2 0xffffffff80d9f2ff at trap_fatal+0x38f #3 0xffffffff80d9ef5d at trap+0x74d #4 0xffffffff80d82282 at calltrap+0x8 #5 0xffffffff80aa0aa1 at in_ifadownkill+0xd1 #6 0xffffffff80a412f0 at rn_walktree+0x80 #7 0xffffffff80aa0942 at in_ifadown+0xc2 #8 0xffffffff80a95591 at in_difaddr_ioctl+0x3a1 #9 0xffffffff80a94763 at in_control+0x463 #10 0xffffffff80a3010c at ifioctl+0x145c #11 0xffffffff809b1a5d at kern_ioctl+0x3cd #12 0xffffffff809b163c at sys_ioctl+0x13c #13 0xffffffff80d9fd1b at amd64_syscall+0x3fb #14 0xffffffff80d8256b at Xfast_syscall+0xfb Uptime: 10m12s Reading symbols from /boot/kernel/zfs.ko.symbols...done. Loaded symbols for /boot/kernel/zfs.ko.symbols Reading symbols from /boot/kernel/opensolaris.ko.symbols...done. Loaded symbols for /boot/kernel/opensolaris.ko.symbols Reading symbols from /boot/modules/nvidia.ko...done. Loaded symbols for /boot/modules/nvidia.ko Reading symbols from /boot/kernel/linux.ko.symbols...done. Loaded symbols for /boot/kernel/linux.ko.symbols Reading symbols from /boot/modules/vboxdrv.ko...done. Loaded symbols for /boot/modules/vboxdrv.ko Reading symbols from /boot/kernel/linprocfs.ko.symbols...done. Loaded symbols for /boot/kernel/linprocfs.ko.symbols Reading symbols from /boot/kernel/fdescfs.ko.symbols...done. Loaded symbols for /boot/kernel/fdescfs.ko.symbols Reading symbols from /boot/modules/vboxguest.ko...done. Loaded symbols for /boot/modules/vboxguest.ko Reading symbols from /boot/modules/vboxvideo.ko...done. Loaded symbols for /boot/modules/vboxvideo.ko Reading symbols from /boot/kernel/drm.ko.symbols...done. Loaded symbols for /boot/kernel/drm.ko.symbols Reading symbols from /boot/kernel/ums.ko.symbols...done. Loaded symbols for /boot/kernel/ums.ko.symbols Reading symbols from /boot/kernel/uhid.ko.symbols...done. Loaded symbols for /boot/kernel/uhid.ko.symbols #0 doadump (textdump=) at pcpu.h:219 219 pcpu.h: No such file or directory. in pcpu.h (kgdb) #0 doadump (textdump=) at pcpu.h:219 #1 0xffffffff80959888 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:449 #2 0xffffffff80959d44 in panic (fmt=) at /usr/src/sys/kern/kern_shutdown.c:756 #3 0xffffffff80d9f2ff in trap_fatal (frame=, eva=) at /usr/src/sys/amd64/amd64/trap.c:882 #4 0xffffffff80d9ef5d in trap (frame=) at /usr/src/sys/amd64/amd64/trap.c:224 #5 0xffffffff80d82282 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:231 #6 0xffffffff80a4429e in rt_expunge (rnh=0x7f00000000000210, rt=0xfffff800148e10c8) at /usr/src/sys/net/route.c:930 #7 0xffffffff80aa0aa1 in in_ifadownkill (rn=0xfffff800148e10c8, xap=0xfffffe046a7f5660) at /usr/src/sys/netinet/in_rmx.c:414 #8 0xffffffff80a412f0 in rn_walktree (h=, f=0xffffffff80aa09d0 , w=0xfffffe046a7f5660) at /usr/src/sys/net/radix.c:1097 #9 0xffffffff80aa0942 in in_ifadown (ifa=0xfffff8000d542300, delete=1) at /usr/src/sys/netinet/in_rmx.c:447 #10 0xffffffff80a95591 in in_difaddr_ioctl (data=, ifp=0xfffff8000d249000, td=) at /usr/src/sys/netinet/in.c:580 #11 0xffffffff80a94763 in in_control (so=, cmd=, data=0xfffff80126c642c0 "lo0", ifp=0xfffff8000d249000, td=0xfffff80108ad6000) at /usr/src/sys/netinet/in.c:219 #12 0xffffffff80a3010c in ifioctl (so=0xfffff80014839700, cmd=2149607705, data=0xfffff80126c642c0 "lo0", td=0xfffff80108ad6000) at /usr/src/sys/net/if.c:2638 #13 0xffffffff809b1a5d in kern_ioctl (td=0xfffff80108ad6000, fd=, com=0) at file.h:323 #14 0xffffffff809b163c in sys_ioctl (td=0xfffff80108ad6000, uap=0xfffffe046a7f59c0) at /usr/src/sys/kern/sys_generic.c:702 #15 0xffffffff80d9fd1b in amd64_syscall (td=0xfffff80108ad6000, traced=0) at subr_syscall.c:133 #16 0xffffffff80d8256b in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:390 #17 0x0000000800fb26fa in ?? () Previous frame inner to this frame (corrupt stack?) Current language: auto; currently minimal (kgdb)