From owner-freebsd-current@FreeBSD.ORG Sat Nov 24 00:40:06 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EB5BD16A41A for ; Sat, 24 Nov 2007 00:40:06 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from cyrus.watson.org (cyrus.watson.org [209.31.154.42]) by mx1.freebsd.org (Postfix) with ESMTP id DDFD113C468 for ; Sat, 24 Nov 2007 00:40:06 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from fledge.watson.org (fledge.watson.org [209.31.154.41]) by cyrus.watson.org (Postfix) with ESMTP id B389446BD3; Fri, 23 Nov 2007 19:43:16 -0500 (EST) Date: Sat, 24 Nov 2007 00:40:00 +0000 (GMT) From: Robert Watson X-X-Sender: robert@fledge.watson.org To: Javier In-Reply-To: <47473E30.6070608@gmail.com> Message-ID: <20071124003453.O14018@fledge.watson.org> References: <47473E30.6070608@gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-current@freebsd.org Subject: Re: panic with tcpdrop 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: Sat, 24 Nov 2007 00:40:07 -0000 On Fri, 23 Nov 2007, Javier wrote: > Hi, a got a panic with tcpdrop command. Javier, I see you may have a coredump -- could you provide a backtrace from gdb for the below? Specifically, I'd like to know what line sysctl_drop+0x207 is. Thanks, Robert N M Watson Computer Laboratory University of Cambridge > Regards, > Javier > > uname -a > FreeBSD odin.valhala 7.0-BETA3 FreeBSD 7.0-BETA3 #0: Mon Nov 19 15:40:35 ART > 2007 > > Fatal trap 12: page fault while in kernel mode > fault virtual address = 0x18 > fault code = supervisor read, page not present > instruction pointer = 0x20:0xc07b8644 > stack pointer = 0x28:0xd6658a00 > frame pointer = 0x28:0xd6658a0c > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, def32 1, gran 1 > processor eflags = resume, IOPL = 0 > current process = 77347 (tcpdrop) > trap number = 12 > panic: page fault > KDB: stack backtrace: > db_trace_self_wrapper(c0a5f1ea,d66588e0,c078878a,c0a5d5f4,c0b5bcc0,...) at > db_trace_self_wrapper+0x26 > kdb_backtrace(c0a5d5f4,c0b5bcc0,c0a1fb8c,d66588ec,d66588ec,...) at > kdb_backtrace+0x29 > panic(c0a1fb8c,c0a7c54d,c39ac220,1,1,...) at panic+0xaa > trap_fatal(c0a7c44f,c,246,c38c0210,c,...) at trap_fatal+0x303 > trap(d66589c0) at trap+0x10d > calltrap() at calltrap+0x6 > --- trap 0xc, eip = 0xc07b8644, esp = 0xd6658a00, ebp = 0xd6658a0c --- > turnstile_broadcast(0,0,c4c351f8,0,d6658b54,...) at turnstile_broadcast+0x34 > _mtx_unlock_sleep(c4c35288,0,0,0,e103,...) at _mtx_unlock_sleep+0x52 > sysctl_drop(c0b0d2e0,0,0,d6658ba4,d6658ba4,...) at sysctl_drop+0x207 > sysctl_root(d6658ba4,100,1,c0937524,c1fbb1e0,...) at sysctl_root+0x127 > userland_sysctl(c38c0210,d6658c14,4,0,0,...) at userland_sysctl+0x134 > __sysctl(c38c0210,d6658cfc,18,c38c0210,d6658d2c,...) at __sysctl+0xdd > syscall(d6658d38) at syscall+0x335 > Xint0x80_syscall() at Xint0x80_syscall+0x20 > --- syscall (202, FreeBSD ELF32, __sysctl), eip = 0x28148a3b, esp = > 0xbfbfe32c, ebp = 0xbfbfe358 --- > Uptime: 2d20h23m41s > Physical memory: 495 MB > Dumping 129 MB: 114 98 82 66 50 34 18 2 > > #0 doadump () at pcpu.h:195 > 195 pcpu.h: No such file or directory. > in pcpu.h > (kgdb) > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >