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Message-ID: <20231007070630.GB20998@1wt.eu>
Date:   Sat, 7 Oct 2023 09:06:30 +0200
From:   Willy Tarreau <w@....eu>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     Shuah Khan <skhan@...uxfoundation.org>,
        Thomas Weißschuh <linux@...ssschuh.net>,
        Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: nolibc changes since 6.6-rc1 for linux-next

On Thu, Oct 05, 2023 at 05:01:22PM -0700, Paul E. McKenney wrote:
> On Thu, Oct 05, 2023 at 03:30:52PM -0600, Shuah Khan wrote:
> > On 10/5/23 14:58, Paul E. McKenney wrote:
> > > On Thu, Oct 05, 2023 at 10:28:05PM +0200, Thomas Weißschuh wrote:
> > > > On 2023-10-05 14:15:31-0600, Shuah Khan wrote:
> > > > > Hi Thomas,
> > > > > 
> > > > > On 10/5/23 11:00, Thomas Weißschuh wrote:
> > > > > > Hi Shuah,
> > > > > > 
> > > > > > I'd like to test the current state of nolibc in linux-next.
> > > > > > Could pull the request below into your nolibc branch?
> > > > > > 
> > > > > > I'll do some manual tests this weekend, too.
> > > > > > 
> > > > > > 
> > > > > > Thanks,
> > > > > > Thomas
> > > > > > 
> > > > > > 
> > > > > > The following changes since commit 0bb80ecc33a8fb5a682236443c1e740d5c917d1d:
> > > > > > 
> > > > > >     Linux 6.6-rc1 (2023-09-10 16:28:41 -0700)
> > > > > > 
> > > > > > are available in the Git repository at:
> > > > > > 
> > > > > >     https://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc.git nolibc/next
> > > > > > 
> > > > > > for you to fetch changes up to ab663cc32912914258bc8a2fbd0e753f552ee9d8:
> > > > > > 
> > > > > >     tools/nolibc: automatically detect necessity to use pselect6 (2023-09-28 09:20:35 +0200)
> > > > > 
> > > > > Absolutely. Do you mind tagging and pushing the tag and send
> > > > > pull request with the tag?
> > > > 
> > > > Sure, here it is:
> > > > 
> > > > 
> > > > The following changes since commit 0bb80ecc33a8fb5a682236443c1e740d5c917d1d:
> > > > 
> > > >    Linux 6.6-rc1 (2023-09-10 16:28:41 -0700)
> > > > 
> > > > are available in the Git repository at:
> > > > 
> > > >    https://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc.git nolibc-next.2023.10.05a
> > > > 
> > > > for you to fetch changes up to ab663cc32912914258bc8a2fbd0e753f552ee9d8:
> > > > 
> > > >    tools/nolibc: automatically detect necessity to use pselect6 (2023-09-28 09:20:35 +0200)
> > > 
> > > Looks good on my laptop:
> > > 
> > > make run:
> > > 
> > > 	160 test(s): 160 passed,   0 skipped,   0 failed => status: success
> > > 
> > > make run-user:
> > > 
> > > 	160 test(s): 158 passed,   2 skipped,   0 failed => status: warning
> > > 
> > > Shuah, I can take nolibc for the upcoming merge window (I believe that
> > > it is my turn to do so), but if you would prefer to take them, that also
> > > works for me.  Either way, just let me know.
> > 
> > Yes it is your turn. Please go ahead and take them.
> 
> Very good, I will merge them in and post them to the relevant email lists.
> 
> > I will pull and do testing and update you on how it went.
> 
> Looking forward to seeing what you find!

In the list I'm seeing this one which is a fix for breakage introduced
in 6.6-rc1:

  commit 3c9b7c4a228bf8cca2f92abb65575cdd54065302 (korg-nolibc/fixes, 20230830-nolibc-fixes)
  Author: Ammar Faizi <ammarfaizi2@...weeb.org>
  Date:   Wed Aug 30 08:02:23 2023 +0700

    tools/nolibc: i386: Fix a stack misalign bug on _start
    
    The ABI mandates that the %esp register must be a multiple of 16 when
    executing a 'call' instruction.
  ...

We'll have to send it separately so that it gets into 6.6 soon enough.
And I think the update of the tree location in the MAINTAINERS file
would be deserved as well.

Paul, Shuah, what's the preferred way for you to get fixes for the current
kernel now ? Do you prefer a PR based on a specific branch or just a patch ?

Thanks!
Willy

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