Date: Sun, 27 Jul 2008 11:03:10 +0200 From: Roman Divacky <rdivacky@FreeBSD.org> To: Alexander Leidinger <Alexander@Leidinger.net> Cc: freebsd-emulation@FreeBSD.org, "Sean C. Farley" <scf@FreeBSD.org>, Chagin Dmitry <chagin.dmitry@gmail.com> Subject: Re: kern/122318 (CMake core dumping, chroot exiting) Message-ID: <20080727090309.GA63345@freebsd.org> In-Reply-To: <20080726083110.5d932695@deskjail> References: <alpine.BSF.1.10.0807231459030.12600@thor.farley.org> <alpine.BSF.1.10.0807240016340.28898@ora.chd.net> <alpine.BSF.1.10.0807231616570.12600@thor.farley.org> <20080725082156.GA41887@freebsd.org> <20080725083122.GA42835@freebsd.org> <alpine.BSF.1.10.0807251233470.1710@ora.chd.net> <alpine.BSF.1.10.0807251231050.30805@thor.farley.org> <alpine.BSF.1.10.0807252318130.1162@ora.chd.net> <alpine.BSF.1.10.0807251511230.31063@thor.farley.org> <20080726083110.5d932695@deskjail>
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On Sat, Jul 26, 2008 at 08:31:10AM +0200, Alexander Leidinger wrote:
> Quoting "Sean C. Farley" <scf@FreeBSD.org> (Fri, 25 Jul 2008 15:36:52
> -0500 (CDT)):
>
> > On Fri, 25 Jul 2008, Chagin Dmitry wrote:
>
> > > uname must work on all supported linuxulators
> >
> > I agree, and it does work until I start playing with the Linux version.
>
> Don't play with the linux version while linux programs are running.
> Changing the version from 2.4.x to 2.6.x and vice versa while a program
> is running is not supported at all and known to cause havoc. Roman, do
> we have the possibility to make an easy check in the sysctl handler if
> a linux program is still running and return an error from the handler?
> Did I forgot something which makes it impossible to switch when a
> program was run under 2.6 and stopped?
I'll submit a patch that makes it impossible to switch the veresion when
programs are running... it's not hard (elf{32}_brand_inuse() for every
elf brand the linuxulator registered)
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