Date: Sat, 18 Nov 2006 14:45:47 -0500 From: Kris Kennaway <kris@obsecurity.org> To: Vincent Blondel <vincent@xtra-net.org> Cc: freebsd-stable@freebsd.org, kris@obsecurity.org Subject: Re: kernel crash ... Message-ID: <20061118194547.GB40675@xor.obsecurity.org> In-Reply-To: <1163873942.3315.12.camel@wbemfkaa.net.xtra-net.be> References: <1163621364.85632.12.camel@wbemfkaa.net.xtra-net.be> <1163692748.2792.10.camel@wbemfkaa.net.xtra-net.be> <20061116161706.GB65054@xor.obsecurity.org> <1163695124.2792.16.camel@wbemfkaa.net.xtra-net.be> <20061116210151.GA68673@xor.obsecurity.org> <1163712849.8157.5.camel@wbemfkaa.net.xtra-net.be> <20061116214237.GA69412@xor.obsecurity.org> <1163780080.2697.6.camel@wbemfkaa.net.xtra-net.be> <20061117223140.GA13858@xor.obsecurity.org> <1163873942.3315.12.camel@wbemfkaa.net.xtra-net.be>
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--BwCQnh7xodEAoBMC Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Nov 18, 2006 at 07:19:02PM +0100, Vincent Blondel wrote: > > If you don't know about mailwrapper running, that suggests you're not > > using the system for email processing and it's the nightly admin > > scripts which are sending mail automatically overnight. >=20 > No I just forgot the existence of mailwrapper but as I said it in my > last mail /etc/mail/mailer.conf points to /var/qmail/bin/sendmail on my > machine because qmail is serving SMTP on my web server. OK. > Concerning nightly scripts, I receive them in my mailbox every > day/week/month. >=20 > >=20 > > I suspect that your mailwrapper executable may be corrupt. The kernel > > is supposed to handle this, but you might have discovered a new and > > better way to corrupt a binary to get it past the existing checks :-) >=20 > Do not forget my original post concerned a kernel panic on process httpd > so maybe problem does not come from mailwrapper ? I did forget because it got trimmed somehow :-) > > If it does, then save a copy of the mailwrapper binary (i.e. don't > > immediately "fix" it by reinstalling) and make it available so we can > > see what is wrong with it. >=20 > but I still get a new crash this morning at 09h20 AM and when I try to > get kgdb running I get hundreds of lines with this ... >=20 > kgdb: kvm_read: invalid address (0x0) > ... This means you are running it against the wrong kernel. Kris --BwCQnh7xodEAoBMC Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFFX2LrWry0BWjoQKURAh5XAKCHAo5gzwiEaAG/LpFjU8ExHEn95wCfQniS TPoo7sRuhQddOu6e9zRrXlw= =mZzI -----END PGP SIGNATURE----- --BwCQnh7xodEAoBMC--
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