The Glasgow Haskell Users Mailing List

Ian Lynagh | 6 Nov 2011 14:18

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GHC 7.2.2 RC 1


We are pleased to announce the first release candidate for GHC 7.2.2:

    http://www.haskell.org/ghc/dist/7.2.2-rc1/

This includes the source tarball, installers for OS X and Windows, and
bindists for amd64/Linux, i386/Linux, amd64/FreeBSD and i386/FreeBSD.

7.2.2 will be a minimal bugfix release, fixing only bugs that cannot be
worked around. Please let us know if you find any showstoppers.

Thanks
Ian, on behalf of the GHC team

Chris Dornan | 6 Nov 2011 17:36

RE: GHC 7.2.2 RC 1

It's looking good but base is still untrusted out of the box. Is this right?

Chris

-----Original Message-----
From: glasgow-haskell-users-bounces <at> haskell.org
[mailto:glasgow-haskell-users-bounces <at> haskell.org] On Behalf Of Ian Lynagh
Sent: 06 November 2011 13:19
To: glasgow-haskell-users <at> haskell.org
Subject: GHC 7.2.2 RC 1

We are pleased to announce the first release candidate for GHC 7.2.2:

    http://www.haskell.org/ghc/dist/7.2.2-rc1/

This includes the source tarball, installers for OS X and Windows, and
bindists for amd64/Linux, i386/Linux, amd64/FreeBSD and i386/FreeBSD.

7.2.2 will be a minimal bugfix release, fixing only bugs that cannot be
worked around. Please let us know if you find any showstoppers.

Thanks
Ian, on behalf of the GHC team

_______________________________________________
Glasgow-haskell-users mailing list
Glasgow-haskell-users <at> haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

Simon Marlow | 7 Nov 2011 17:44

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Re: GHC 7.2.2 RC 1

I think we should apply the minimal change to make all packages trusted 
by default in 7.2.2.  Any objections?

Cheers,
	Simon

On 06/11/2011 16:36, Chris Dornan wrote:
> It's looking good but base is still untrusted out of the box. Is this right?
>
> Chris
>
> -----Original Message-----
> From: glasgow-haskell-users-bounces <at> haskell.org
> [mailto:glasgow-haskell-users-bounces <at> haskell.org] On Behalf Of Ian Lynagh
> Sent: 06 November 2011 13:19
> To: glasgow-haskell-users <at> haskell.org
> Subject: GHC 7.2.2 RC 1
>
>
> We are pleased to announce the first release candidate for GHC 7.2.2:
>
>      http://www.haskell.org/ghc/dist/7.2.2-rc1/
>
> This includes the source tarball, installers for OS X and Windows, and
> bindists for amd64/Linux, i386/Linux, amd64/FreeBSD and i386/FreeBSD.
>
> 7.2.2 will be a minimal bugfix release, fixing only bugs that cannot be
> worked around. Please let us know if you find any showstoppers.
>
>

(Continue reading)

Chris Dornan | 7 Nov 2011 18:48

RE: GHC 7.2.2 RC 1

Y'all have probably seen this, but I have opened #5607 saying a bit more.

	http://hackage.haskell.org/trac/ghc/ticket/5607

Chris

-----Original Message-----
From: Simon Marlow [mailto:marlowsd <at> gmail.com] 
Sent: 07 November 2011 16:45
To: Chris Dornan
Cc: 'Ian Lynagh'; glasgow-haskell-users <at> haskell.org; David Terei
Subject: Re: GHC 7.2.2 RC 1

I think we should apply the minimal change to make all packages trusted by
default in 7.2.2.  Any objections?

Cheers,
	Simon

On 06/11/2011 16:36, Chris Dornan wrote:
> It's looking good but base is still untrusted out of the box. Is this
right?
>
> Chris

David Terei | 7 Nov 2011 19:22

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Re: GHC 7.2.2 RC 1

On 7 November 2011 08:44, Simon Marlow <marlowsd <at> gmail.com> wrote:
> I think we should apply the minimal change to make all packages trusted by
> default in 7.2.2.  Any objections?

Agreed.

Kyra | 6 Nov 2011 22:25

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Re: GHC 7.2.2 RC 1

On 11/6/2011 5:18 PM, Ian Lynagh wrote:
> 7.2.2 will be a minimal bugfix release, fixing only bugs that cannot be
> worked around. Please let us know if you find any showstoppers.
>
#5531 is still there and no workarounds are known. Also, it's specific 
for post 7.0.Xs.  Not sure if this counts as showstopper, though.

Cheers, Kyra

Ian Lynagh | 8 Nov 2011 01:36

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Re: GHC 7.2.2 RC 1

On Mon, Nov 07, 2011 at 01:25:11AM +0400, Kyra wrote:
> On 11/6/2011 5:18 PM, Ian Lynagh wrote:
> >7.2.2 will be a minimal bugfix release, fixing only bugs that cannot be
> >worked around. Please let us know if you find any showstoppers.
> >
> #5531 is still there and no workarounds are known. Also, it's
> specific for post 7.0.Xs.  Not sure if this counts as showstopper,
> though.

We don't have a fix for that yet, so it's very unlikely it'll be fixed
in 7.2.2 (which will be released very soon). But we still have ambitions
to release 7.4.1 later this year!

Thanks
Ian

Jens Petersen | 8 Nov 2011 07:57

Re: GHC 7.2.2 RC 1

> We are pleased to announce the first release candidate for GHC 7.2.2:
>    http://www.haskell.org/ghc/dist/7.2.2-rc1/

Thanks, I did a test build for Fedora 17 Development.

If you wish to test it on Fedora you can get
the srpm or binary packages from:
http://kojipkgs.fedoraproject.org/scratch/petersen/task_3496432/
(note that F17 is now on a newer major version of gmp
than F16 and earlier, so the binary packages won't install
directly on current releases.)

I am planning to update Fedora 17 Rawhide from 7.0.4 to 7.2.2
when it is released.

Jens

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Nathan Howell | 11 Nov 2011 07:16

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Re: GHC 7.2.2 RC 1

Any chance #5421 (<<loop>> in withMVar (reproducible, but with large test case) could be backported to 7.2.2?

-n

On Sun, Nov 6, 2011 at 5:18 AM, Ian Lynagh <igloo <at> earth.li> wrote:

7.2.2 will be a minimal bugfix release, fixing only bugs that cannot be
worked around. Please let us know if you find any showstoppers.

_______________________________________________
Glasgow-haskell-users mailing list
Glasgow-haskell-users <at> haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

Simon Marlow | 11 Nov 2011 13:52

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Re: GHC 7.2.2 RC 1

Sorry, no.  That one has a workaround: define your own fixIO:

fixIO :: (a -> IO a) -> IO a
fixIO k = do
     m <- newEmptyMVar
     ans <- unsafeInterleaveIO (takeMVar m)
     result <- k ans
     putMVar m result
     return result

Cheers,
	Simon

On 11/11/2011 06:16, Nathan Howell wrote:
> Any chance #5421 (<<loop>> in withMVar (reproducible, but with large
> test case) could be backported to 7.2.2?
>
> -n
>
> On Sun, Nov 6, 2011 at 5:18 AM, Ian Lynagh <igloo <at> earth.li
> <mailto:igloo <at> earth.li>> wrote:
>
>     7.2.2 will be a minimal bugfix release, fixing only bugs that cannot be
>     worked around. Please let us know if you find any showstoppers.
>
>
>
> _______________________________________________
> Glasgow-haskell-users mailing list
> Glasgow-haskell-users <at> haskell.org
> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

Nathan Howell | 11 Nov 2011 17:37

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Re: GHC 7.2.2 RC 1

We're hitting something that looks similar with a Chan on 7.2.1, though they might be related..

On Fri, Nov 11, 2011 at 4:52 AM, Simon Marlow <marlowsd <at> gmail.com> wrote:

Sorry, no. That one has a workaround: define your own fixIO:

fixIO :: (a -> IO a) -> IO a
fixIO k = do
m <- newEmptyMVar
ans <- unsafeInterleaveIO (takeMVar m)
result <- k ans
putMVar m result
return result

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Glasgow-haskell-users <at> haskell.org
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Leon Smith | 12 Nov 2011 04:22

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Re: GHC 7.2.2 RC 1

Chans are basically linked lists with the next pointer wrapped in an
MVar.   The source is actually very readable.   So yes,  it probably
is the same thing.

Best,
Leon

On Fri, Nov 11, 2011 at 11:37 AM, Nathan Howell
<nathan.d.howell <at> gmail.com> wrote:
> We're hitting something that looks similar with a Chan on 7.2.1, though they
> might be related..
>
> On Fri, Nov 11, 2011 at 4:52 AM, Simon Marlow <marlowsd <at> gmail.com> wrote:
>>
>> Sorry, no.  That one has a workaround: define your own fixIO:
>>
>> fixIO :: (a -> IO a) -> IO a
>> fixIO k = do
>>    m <- newEmptyMVar
>>    ans <- unsafeInterleaveIO (takeMVar m)
>>    result <- k ans
>>    putMVar m result
>>    return result
>
> _______________________________________________
> Glasgow-haskell-users mailing list
> Glasgow-haskell-users <at> haskell.org
> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
>
>

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