Date: Thu, 21 Jul 2005 01:00:48 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Eirik ?verby <ltning@anduin.net>, stable@FreeBSD.org, Robert Watson <rwatson@FreeBSD.org> Subject: Re: Serious issue with serial console in 5.4 Message-ID: <20050721050048.GU22430@xor.obsecurity.org>
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--SwC/mAzP11p89u4p Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jul 18, 2005 at 11:58:54AM +0200, Eirik ?verby wrote: > Hi, >=20 > I reported this before, but I am very surprised that it is still the =20 > case: >=20 > (This is from the last time it happened; this time the box rebooted =20 > and cleared the serial console before I had time to cut/paste it. > >Fatal trap 12: page fault while in kernel mode > >cpuid =3D 1; apic id =3D 00 > >fault virtual address =3D 0x1c > >fault code =3D supervisor write, page not present > >instruction pointer =3D 0x8:0xc0620b5f > >stack pointer =3D 0x10:0xdadbd988 > >frame pointer =3D 0x10:0xdadbd994 > >code segment =3D base 0x0, limit 0xfffff, type 0x1b > > =3D DPL 0, pres 1, def32 1, gran 1 > >processor eflags =3D interrupt enabled, resume, IOPL =3D 0 > >current process =3D 51999 (getty) > >trap number =3D 12 > >panic: page fault > >cpuid =3D 1 > >boot() called on cpu#0 > >Uptime: 66d11h24m50s >=20 > The above panic will show up occasionally when logging out from a =20 > serial console (i.e. ctrl-D, logout, exit, whatever). This is =20 > EXTREMELY BAD, as it will crash an otherwise perfectly healthy box at =20 > random - and renders the serial console useless. >=20 > Robert Watson confirmed this to be an issue on the 10th of April. >=20 > Anyone?? You might have to wait until 6.0-R since fixing it seems to require infrastructure changes that cannot easily be backported to 5.x. Kris --SwC/mAzP11p89u4p Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFC3yv/Wry0BWjoQKURAmmXAKDsFaJXxI1QtxIcHCTJWWt8UsYOVQCfRA70 s6DLhNMSmnbbehBt6tRf5zo= =Kgb+ -----END PGP SIGNATURE----- --SwC/mAzP11p89u4p--
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