From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.24) id 1AgTe1-0008E3-V0 for user-mode-linux-devel@lists.sourceforge.net; Tue, 13 Jan 2004 10:52:05 -0800 Received: from mta10.adelphia.net ([68.168.78.202]) by sc8-sf-mx1.sourceforge.net with esmtp (Exim 4.30) id 1AgTe1-0002U4-A7 for user-mode-linux-devel@lists.sourceforge.net; Tue, 13 Jan 2004 10:52:05 -0800 From: Matt Zimmerman Message-ID: <20040113185156.GW1514@alcor.net> References: <20031228093317.GK17472@alcor.net> <20031228095115.GL17472@alcor.net> <20031228101240.GN17472@alcor.net> <20031228113042.GO17472@alcor.net> <20031230184330.GD1365@alcor.net> <200401060258.i062wWFI023087@ccure.user-mode-linux.org> <20040108070718.GI28393@alcor.net> <20040112183623.GB1436@alcor.net> <20040113152542.GD7072@seventeen> <200401131730.i0DHUMhg002358@ccure.user-mode-linux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200401131730.i0DHUMhg002358@ccure.user-mode-linux.org> Subject: [uml-devel] Re: Panic with slirp transport and gcc 3.3 Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Tue, 13 Jan 2004 10:51:57 -0800 To: Jeff Dike Cc: Bill Allombert , user-mode-linux-devel@lists.sourceforge.net, 176485@bugs.debian.org On Tue, Jan 13, 2004 at 12:30:22PM -0500, Jeff Dike wrote: > allomber@math.u-bordeaux.fr said: > > Kernel panic: Segfault with no mm > > Without the eth0=slirp parameter, there are no kernel panic. > > Can someone get a stack trace from this? Certainly (this is from 2.4.23-1um). Seems like something goes weird with procfs, but I've no idea why this only happens with slirp (and newer gcc for that matter). (gdb) bt #0 panic (fmt=0x0) at panic.c:58 #1 0xa00d769b in segv (address=8, ip=2685922193, is_write=0, is_user=0, sc=0x0) at trap_kern.c:144 #2 0xa00d7af5 in segv_handler (sig=11, regs=0xa0350274) at trap_user.c:67 #3 0xa00df411 in sig_handler_common_skas (sig=11, sc_ptr=0x58) at trap_user.c:33 #4 0xa00d7c05 in sig_handler (sig=0, sc= {gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2687843188, esi = 2688540673, ebp = 2687843100, esp = 2687843028, ebx = 2687843188, edx = 2687843188, ecx = 2687827968, eax = 0, trapno = 14, err = 4, eip = 2684641864, cs = 35, __csh = 0, eflags = 2163202, esp_at_signal = 2687843028, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 0, cr2 = 8}) at trap_user.c:103 #5 #6 0xa0046248 in link_path_walk (name=0xa03fe001 "dev", nd=0xa0353b74) at namei.c:462 #7 0xa004674e in path_walk (name=0x0, nd=0xa0353b74) at namei.c:659 #8 0xa0046919 in path_lookup (path=0xa03fe000 "/dev", flags=2687843188, nd=0xa0353b74) at namei.c:748 #9 0xa0047754 in sys_mkdir (pathname=0x0, mode=448) at namei.c:1345 #10 0xa000eafa in prepare_namespace () at init/do_mounts.c:917 #11 0xa000e613 in init (unused=0x0) at init/main.c:580 #12 0xa00d22f9 in run_kernel_thread (fn=0xa000e600 , arg=0x0, #13 0xa00de930 in new_thread_handler (sig=10) at process_kern.c:70 #14 (gdb) i sym 2685922193 kill + 17 in section .text (gdb) i line *2685922193 Line 155 of "proc_fs.h" starts at address 0xa0178e94 and ends at 0xa01c3913. (gdb) up 6 #6 0xa0046248 in link_path_walk (name=0xa03fe001 "dev", nd=0xa0353b74) at namei.c:462 462 inode = nd->dentry->d_inode; (gdb) print *nd $1 = {dentry = 0x0, mnt = 0x0, last = { name = 0x8124
, len = 1, hash = 2686526256}, flags = 16, last_type = 1} -- - mdz ------------------------------------------------------- This SF.net email is sponsored by: Perforce Software. Perforce is the Fast Software Configuration Management System offering advanced branching capabilities and atomic changes on 50+ platforms. Free Eval! http://www.perforce.com/perforce/loadprog.html _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel