[PATCH] pipe2 for Linuxulator

[Alexander Leidinger]

On Sun, 15 Apr 2012 11:23:08 +0000 Alexander Best <arundel at freebsd.org>
wrote:

> On Sun Apr 15 12, Alexander Best wrote:
> > On Sun Apr 15 12, Alexander Best wrote:
> > > On Sun Apr 15 12, Alexander Leidinger wrote:
> > > > On Sat, 14 Apr 2012 22:47:46 +0200 Alexander Leidinger
> > > > <Alexander at Leidinger.net> wrote:
> > > > 
> > > > > On Sat, 14 Apr 2012 20:32:56 +0000 Alexander Best
> > > > > <arundel at freebsd.org> wrote:
> > > > > 
> > > > > > On Sat Apr 14 12, Alexander Leidinger wrote:
> > > > > > > On Fri, 13 Apr 2012 20:32:22 +0000 Alexander Best
> > > > > > > <arundel at freebsd.org> wrote:
> > > > > > > 
> > > > > > > > i'm having problems with the patch. beforehand, playing
> > > > > > > > music from www.mixcloud.com worked. now the flash based
> > > > > > > > player is initialising forever.
> > > > > > > 
> > > > > > > > just drop me a note with exact instructions and i can
> > > > > > > > give you more verbose information or debugging stats.
> > > > > > > > again: this issue might be futex related and not a
> > > > > > > > result of your patch.
> > > > > > > 
> > > > > > > Are you running -current? If yes I Looks try to get some
> > > > > > > time to commit the linuxulator-dtrace probes, now that
> > > > > > > SDT probes can be loaded dynamically there is no risk to
> > > > > > > panic the system when the linuxulator is loaded after
> > > > > > > boot and dtrace is used. This could help looking at
> > > > > > > problems with locks.
> > > > > > 
> > > > > > yes i'm running a very recent HEAD on amd64.
> > > > > 
> > > > > I'm in the process of merging all the new stuff from HEAD
> > > > > into my SVN branch. With a slow system and a slow line this
> > > > > may take a while. I hope to at least update my branch in SVN
> > > > > (users/netchild/linuxulator-dtrace) today. I don't know if I
> > > > > get the time to merge it to HEAD today.
> > > > 
> > > > Hmmm... do I remember correctly that I already gave a dtrace
> > > > patch to you to check for futex problems? I think I changed the
> > > > locking-probes since I gave the patch to you, but I'm not sure.
> > > > Anyway, the patch against a recent -current is available from
> > > > http://www.leidinger.net/FreeBSD/current-patches now.
> > > 
> > > yeah you're right. i've applied the patch and compiled and
> > > installed the kernel. i'm not very experienced with dtrace, so
> > > i'll need some instructions on how to proceed.
> > 
> > buildkernel suceeded, but i got this error during buildworld:
> 
> it seems your patch breaks building world with MODULES_WITH_WORLD
> defined. when modules get buildduring buildkernel, i don't see that
> error.

opt_kdtrace.h is generated by config. I've never used
MODULES_WITH_WORLD, so I have no idea how this case is handled.

Bye,
Alexander.

-- 
http://www.Leidinger.net    Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org       netchild @ FreeBSD.org  : PGP ID = 72077137