Date: Sun, 1 Sep 2002 01:02:46 +0200 From: Yann Berthier <yb@sainte-barbe.org> To: current@FreeBSD.org Subject: Re: Problems reading vmcores Message-ID: <20020831230245.GB74473@hsc.fr> In-Reply-To: <20020831220328.GA58880@xor.obsecurity.org> References: <20020831212639.GA58028@xor.obsecurity.org> <20020831214201.GA74473@hsc.fr> <20020831220043.GA58767@xor.obsecurity.org> <20020831220328.GA58880@xor.obsecurity.org>
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On Sat, 31 Aug 2002, Kris Kennaway wrote: > On Sat, Aug 31, 2002 at 03:00:43PM -0700, Kris Kennaway wrote: > > On Sat, Aug 31, 2002 at 11:42:01PM +0200, Yann Berthier wrote: > > > On Sat, 31 Aug 2002, Kris Kennaway wrote: > > > > > > > I'm having difficulty reading vmcore images with gdb (either the > > > > system version or the port). > > > > > > > > (gdb) gohan10# gdb /a/kernel.debug /a/vmcore.0 > > > > > > But you need to specify the -k flag to gdb to use it against kernel > > > dumps, I'm sure it will give much better results :) > > > > Oops, pasted the wrong thing: > > > > gohan10# gdb -k kernel.debug vmcore.0 > > GNU gdb 5.2.0 (FreeBSD) 20020627 > > Copyright 2002 Free Software Foundation, Inc. > > GDB is free software, covered by the GNU General Public License, and you are > > welcome to change it and/or distribute copies of it under certain conditions. > > Type "show copying" to see the conditions. > > There is absolutely no warranty for GDB. Type "show warranty" for details. > > This GDB was configured as "i386-undermydesk-freebsd"... > > /a/vmcore.0: Undefined error: 0. > > Also > > gohan10# bin/gdb52 -k kernel.debug vmcore.0 > GNU gdb 5.2 (FreeBSD) > Copyright 2002 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you are > welcome to change it and/or distribute copies of it under certain conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "i386-portbld-freebsd5.0"... > /a/vmcore.0: Bad file descriptor. Sorry, I can't help you: I never uncountered this behavior, and certainly not on the recent kernel dumps I have under the hood. PS: I must admit I was a bit surprised by your initial post, I have classified it in the 'he must be aspleep / under caffeined ' category :) - yann To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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