Date: Tue, 07 Feb 2006 15:15:00 +0100 From: Gary Jennejohn <garyj@jennejohn.org> To: Robert Watson <rwatson@FreeBSD.org> Cc: Giorgos Keramidas <keramida@ceid.upatras.gr>, freebsd-current@FreeBSD.org, Olivier Houchard <cognet@FreeBSD.org>, freebsd-amd64@FreeBSD.org Subject: Re: HEADSUP: New pts code triggers panics on amd64 systems. Message-ID: <200602071415.k17EF03v001858@peedub.jennejohn.org> In-Reply-To: Message from Robert Watson <rwatson@FreeBSD.org> of "Tue, 07 Feb 2006 13:26:24 GMT." <20060207132335.W37594@fledge.watson.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Robert Watson writes:
> Does the instability occur if kern.pts.enable=3D0, or only when=20
> kern.pts.enable=3D1? If 0, if you back out the user space changes but =
leave=20
> tty_pts.c compiled into the kernel, do the instability issues persist? =
How=20
> about with the kernel code compiled out, but the user space code in pla=
ce?
>=20
> Basically, it would be good to know if what you're seeing is a property=
of th
> e=20
> pts code being in the kernel at all, or a property of it actually in us=
e.=20
> The former might be indicate that a memory layout change or devfs behav=
ioral=20
> change has triggered an existing bug previously masked, whereas the lat=
ter=20
> more likely signals a bug in the pts code or a bug in devfs generated b=
y=20
> virtue of the deletion of device nodes. That some of the panics happen=
very=20
> early (perhaps before a pts device is actually allocated) is suggestive=
...
I was running 32-bit so I rebooted to 64-bit.
kern.pts.enable was 0=A0so I set it to 1 and started X. This automaticall=
y
starts an mrxvt with 3 virtual terminals. Everything was OK and ``tty''
showed /dev/pts/{0,1,2}, as expected.
I didn't try booting with an entry in loader.conf to set kern.pts.enable
to 1.
I'm now back running 32-bit with kern.pts.enable set to 1 in X with a
whole slew of mrxvt's running and I see no problems here either. The
only difference is that ``w'' doesn't show any of the /dev/pts entries
although I have 7 active.
---
Gary Jennejohn / garyjATjennejohnDOTorg gjATfreebsdDOTorg garyjATdenxDOTd=
e
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200602071415.k17EF03v001858>