Date: Wed, 25 May 2011 09:42:20 -0700 (PDT) From: Doug Ambrisko <ambrisko@ambrisko.com> To: Alexander Leidinger <Alexander@leidinger.net> Cc: Pawel Jakub Dawidek <pjd@freebsd.org>, Arnaud Lacombe <lacombar@gmail.com>, "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: NFS mount inside jail fails Message-ID: <201105251642.p4PGgKWL062917@ambrisko.com> In-Reply-To: <20110520082905.1914751s9bwb2w4x@webmail.leidinger.net>
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Alexander Leidinger writes: | Quoting Doug Ambrisko <ambrisko@ambrisko.com> (from Thu, 19 May 2011 | 14:38:40 -0700 (PDT)): | | > Alexander Leidinger writes: | > | On Thu, 19 May 2011 10:24:59 -0700 (PDT) Doug Ambrisko | > | <ambrisko@ambrisko.com> wrote: | > | | > | > doesn't have access to it anymore either. Running an X server in a | > | > vimage has some issues. Most are pretty easy to over-come. | > | | > | Are you using my patch | > | (http://www.leidinger.net/FreeBSD/current-patches/0_jail.diff) + a | > | custom devfs.rules to get the 2D part (the last time I tried the DRI | > | part of my patch, it paniced the machine) of the X server working in a | > | jail, or did you come up with something yourself? If it is the later, I | > | would be interested how you did it. | > | > Nope, didn't know about it when I played with it. I should try it. | > I added | > case PRIV_IO: | > return (0); | > | > to kern_jail.c to get X to work. This was with the Intel graphics. | > The main problem I have now is on resume the X server dies and restarts. | > I use xdm. Without jail with vimage then it works okay. | | I use it without vimage in a jail. This is with a radeon card | (corresponding kernel module loaded at boot to get 2D acceleration, as | the X server obviously can not load modules in a jail). | | > My laptop can use either Intel or ATI graphics. I just switched it to | > ATI to see what happens. I should try some more tests. It seems | > my BIOS likes to reset this setting and enable both :-( | > | > I don't seem to have panics. This is with a month or so old -current. | | You do not allow access to the dri device, so I do not expect a panic. | If you give access to the dri device (which can be enabled separately | in my patch), I would not be surprised to see a panic (the last time I | tried it is a year or two ago, I didn't take the time to investigate | why it panics). Okay, I have an update. With Intel graphics and using dri things work better and I don't get panics. I load drm.ko & i915.ko before starting the vimage jail. X sees it and uses it. This solves the suspend/resume issue I had. The dri issue also prevented suspend and resume fail to work in a chroot. I have not tried switching to using the ATI option. On a plus side my laptop is running cooler and faster now. Doug A.
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