linux-kernel - Re: [PATCH v4 00/30] NT synchronization primitive driver

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Message-ID: <5199277.LvFx2qVVIh@watership>
Date: Mon, 06 May 2024 19:40:45 -0500
From: Elizabeth Figura <zfigura@...eweavers.com>
To: Peter Zijlstra <peterz@...radead.org>, wine-devel@...ehq.org
Cc: wine-devel@...ehq.org, Arnd Bergmann <arnd@...db.de>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Jonathan Corbet <corbet@....net>, Shuah Khan <shuah@...nel.org>,
 linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
 André Almeida <andrealmeid@...lia.com>,
 Wolfram Sang <wsa@...nel.org>, Andy Lutomirski <luto@...nel.org>,
 linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org,
 Randy Dunlap <rdunlap@...radead.org>, Ingo Molnar <mingo@...hat.com>,
 Will Deacon <will@...nel.org>, Waiman Long <longman@...hat.com>,
 Boqun Feng <boqun.feng@...il.com>, Elizabeth Figura <zfigura@...eweavers.com>
Subject: Re: [PATCH v4 00/30] NT synchronization primitive driver

On Friday, April 19, 2024 3:46:07 PM CDT Elizabeth Figura wrote:
> On Friday, 19 April 2024 11:16:11 CDT Peter Zijlstra wrote:
> 
> > On Tue, Apr 16, 2024 at 05:18:56PM -0500, Elizabeth Figura wrote:
> > 
> > > On Tuesday, 16 April 2024 16:18:24 CDT Elizabeth Figura wrote:
> > > 
> > > > On Tuesday, 16 April 2024 03:14:21 CDT Peter Zijlstra wrote:
> > > > 
> > > > > I don't support GE has it in his builds? Last time I tried,
> > > > > building
> > > > > Wine was a bit of a pain.
> > > > 
> > > > 
> > > > It doesn't seem so. I tried to build a GE-compatible ntsync build,
> > > > uploaded
 here (thanks Arek for hosting):
> > > > 
> > > > 
> > > >     https://f002.backblazeb2.com/file/wine-ntsync/ntsync-wine.tar.xz
> > > 
> > > 
> > > Oops, the initial version I uploaded had broken paths. Should be fixed
> > > now.
 
> > > (It's also broken on an unpatched kernel unless explicitly disabled with
> > > 
> > > WINE_DISABLE_FAST_SYNC=1. Not sure what I messed up there—it should fall
> > > back 
 cleanly—but hopefully shouldn't be too important for testing.)
> > 
> > 
> > So I've tried using that wine build with lutris, and I can't get it to
> > start EGS or anything else.
> > 
> > I even added a printk to the ntsync driver for every open, to see if it
> > gets that far, but I'm not even getting that :/
> 
> 
> That's odd, it works for me, both as a standalone build and with
> lutris...
> 
> Does /dev/ntsync exist (module is loaded) and have nonzero permissions?
> I forgot to mention that's necessary, sorry.
> 
> Otherwise I can try to look at an strace, or a Wine debug log. I don't
> think there's an easy way to get the latter with Lutris, but something
> like `WINEDEBUG=+all ./wine winecfg 2>log` should work.

It's also possible I made that build against a too-new distribution. I've 
created a new build against Debian 12, which is hopefully better, and it has 
some extra debug logging:

https://f002.backblazeb2.com/file/wine-ntsync/ntsync-wine2.tar.xz

Hopefully that's functional enough to test with, or at least give more a hint 
as to why it doesn't work?