thr3ads.net - freebsd stable - mini-heads-up: linuxulator fixes (Fw: cvs commit: src/sys/amd64/linux32 linux.h linux32_machdep.c linux32_sysvec.c syscalls.master src/sys/compat/linprocfs linprocfs.c src/sys/compat/linux linux_misc.c src/sys/i386/linux linux.h linux_machdep.c linux

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Alexander Leidinger

2007-Jul-08 13:21 UTC

mini-heads-up: linuxulator fixes (Fw: cvs commit: src/sys/amd64/linux32 linux.h linux32_machdep.c linux32_sysvec.c syscalls.master src/sys/compat/linprocfs linprocfs.c src/sys/compat/linux linux_misc.c src/sys/i386/linux linux.h linux_machdep.c linux_sysvec.c)

Hi,

I MFCed some fixes to the linuxulator today. One major change is
correcting the handling of the linux mmap function. This may break some
not so good programmed audio programs (mostly some few bad behaving
games). If you get hit by this, don't be afraid. The MFC of a change to
the sound system (and an entry to UPDATING) will be done "soon" by
Ariff.

Except for those audio apps, all programs which had problems because of
this should work better now. If you stumble upon a problem, please
report to emulation@FreeBSD.org.

Note: while more MFCs of fixes and missing linux syscalls are planned
(before 6.3), the MFC of the linux-2.6 compatibility is not planned (if
you need it, you have to update to 7.0 release when it comes out).

If someone wants to help test some more patches for the linuxulator in
-stable, please contact me and I take you into the loop (the more
testers, the faster -stable will see the MFCs). What I need are people
which compile and runtest the changes. Most of the changes are straight
forward, we only have one part which causes a problem because of an
unknown reason (either bad testing hardware or a missing change in my
patches).

Bye,
Alexander.


Start weitergeleitete Nachricht:

Datum: Sun, 8 Jul 2007 12:20:36 +0000 (UTC)
Von: Alexander Leidinger <netchild@FreeBSD.org>
An: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
Betreff: cvs commit: src/sys/amd64/linux32 linux.h linux32_machdep.c        
linux32_sysvec.c syscalls.master src/sys/compat/linprocfs         linprocfs.c
src/sys/compat/linux linux_misc.c src/sys/i386/linux         linux.h
linux_machdep.c linux_sysvec.c


netchild    2007-07-08 12:20:36 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/amd64/linux32    linux.h linux32_machdep.c 
                         linux32_sysvec.c syscalls.master 
    sys/compat/linprocfs linprocfs.c 
    sys/compat/linux     linux_misc.c 
    sys/i386/linux       linux.h linux_machdep.c linux_sysvec.c 
  Log:
  MFC (5 of X):
   - linuxulator mmap handling
   - memleak fixes
   - extend linux errno mapping
   - handle address space limits for linux processes
   - sync linprocfs (/proc/sys/... part)
  
  Compile tested by:      scf (i386, as part of a mega-MFC-patch)
  Tested by:              Arno J. Klaassen <arno@heho.snv.jussieu.fr>
(amd64)
  
  Revision   Changes    Path
  1.1.8.3    +11 -2     src/sys/amd64/linux32/linux.h
  1.10.2.2   +114 -64   src/sys/amd64/linux32/linux32_machdep.c
  1.7.2.9    +2 -1      src/sys/amd64/linux32/linux32_sysvec.c
  1.4.2.2    +1 -1      src/sys/amd64/linux32/syscalls.master
  1.89.2.7   +167 -7    src/sys/compat/linprocfs/linprocfs.c
  1.170.2.6  +1 -1      src/sys/compat/linux/linux_misc.c
  1.64.2.3   +11 -2     src/sys/i386/linux/linux.h
  1.48.2.5   +65 -57    src/sys/i386/linux/linux_machdep.c
  1.137.2.5  +2 -1      src/sys/i386/linux/linux_sysvec.c

http://cvsweb.FreeBSD.org/src/sys/amd64/linux32/linux.h.diff?&r1=1.1.8.2&r2=1.1.8.3&f=h
http://cvsweb.FreeBSD.org/src/sys/amd64/linux32/linux32_machdep.c.diff?&r1=1.10.2.1&r2=1.10.2.2&f=h
http://cvsweb.FreeBSD.org/src/sys/amd64/linux32/linux32_sysvec.c.diff?&r1=1.7.2.8&r2=1.7.2.9&f=h
http://cvsweb.FreeBSD.org/src/sys/amd64/linux32/syscalls.master.diff?&r1=1.4.2.1&r2=1.4.2.2&f=h
http://cvsweb.FreeBSD.org/src/sys/compat/linprocfs/linprocfs.c.diff?&r1=1.89.2.6&r2=1.89.2.7&f=h
http://cvsweb.FreeBSD.org/src/sys/compat/linux/linux_misc.c.diff?&r1=1.170.2.5&r2=1.170.2.6&f=h
http://cvsweb.FreeBSD.org/src/sys/i386/linux/linux.h.diff?&r1=1.64.2.2&r2=1.64.2.3&f=h
http://cvsweb.FreeBSD.org/src/sys/i386/linux/linux_machdep.c.diff?&r1=1.48.2.4&r2=1.48.2.5&f=h
http://cvsweb.FreeBSD.org/src/sys/i386/linux/linux_sysvec.c.diff?&r1=1.137.2.4&r2=1.137.2.5&f=h



-- 
Just because your doctor has a name for your condition
doesn't mean he knows what it is.
http://www.Leidinger.net  Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org     netchild @ FreeBSD.org  : PGP ID = 72077137

Ariff Abdullah

2007-Jul-08 14:42 UTC

head link

mini-heads-up: linuxulator fixes (Fw: cvs commit: src/sys/amd64/linux32 linux.h linux32_machdep.c linux32_sysvec.c syscalls.master src/sys/compat/linprocfs linprocfs.c src/sys/compat/linux linux_misc.c src/sys/i386/linux linux.h linux_machdep.c linux_sysvec.c)

On Sun, 8 Jul 2007 14:49:47 +0200
Alexander Leidinger <Alexander@Leidinger.net>
wrote:> Hi,
> 
> I MFCed some fixes to the linuxulator today. One major change is
> correcting the handling of the linux mmap function. This may break
> some not so good programmed audio programs (mostly some few bad
> behaving games). If you get hit by this, don't be afraid. The MFC of
> a change to the sound system (and an entry to UPDATING) will be done
> "soon" by Ariff.
>Technically, this is not the fault of that particular audio apps.
Latest mmap changes in linuxlator apparently force PROT_EXEC mapping
on all _typical_ mmap invocations, and this affecting not just sound,
but bktr(4) as well. Well, bktr a bit lucky since I haven't encounter
any linux-binary + bktr apps.

Anyway, I've added sysctl hw.snd.compat_linux_mmap, where it is
disabled by default.

linux mmap breakage:
http://lists.freebsd.org/pipermail/freebsd-current/2007-June/073437.html

solution:
http://lists.freebsd.org/pipermail/cvs-src/2007-July/080531.html
> Except for those audio apps, all programs which had problems because
> of this should work better now. If you stumble upon a problem,
> please report to emulation@FreeBSD.org.
> 
> Note: while more MFCs of fixes and missing linux syscalls are
> planned (before 6.3), the MFC of the linux-2.6 compatibility is not
> planned (if you need it, you have to update to 7.0 release when it
> comes out).
> 
> If someone wants to help test some more patches for the linuxulator
> in -stable, please contact me and I take you into the loop (the more
> testers, the faster -stable will see the MFCs). What I need are
> people which compile and runtest the changes. Most of the changes
> are straight forward, we only have one part which causes a problem
> because of an unknown reason (either bad testing hardware or a
> missing change in my patches).
> 

--
Ariff Abdullah
FreeBSD

... Recording in stereo is obviously too advanced
    and confusing for us idiot ***** users :P ........
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freebsd stable - Jul 2007 - mini-heads-up: linuxulator fixes (Fw: cvs commit: src/sys/amd64/linux32 linux.h linux32_machdep.c linux32_sysvec.c syscalls.master src/sys/compat/linprocfs linprocfs.c src/sys/compat/linux linux_misc.c src/sys/i386/linux linux.h linux_machdep.c

mini-heads-up: linuxulator fixes (Fw: cvs commit: src/sys/amd64/linux32 linux.h linux32_machdep.c linux32_sysvec.c syscalls.master src/sys/compat/linprocfs linprocfs.c src/sys/compat/linux linux_misc.c src/sys/i386/linux linux.h linux_machdep.c linux_sysvec.c)

mini-heads-up: linuxulator fixes (Fw: cvs commit: src/sys/amd64/linux32 linux.h linux32_machdep.c linux32_sysvec.c syscalls.master src/sys/compat/linprocfs linprocfs.c src/sys/compat/linux linux_misc.c src/sys/i386/linux linux.h linux_machdep.c linux_sysvec.c)