April 2013 - ghc-devs

Re: HP 2013.2 and GHC 7.6.2
by Richard Eisenberg 16 Apr '13

16 Apr '13

On Apr 16, 2013, at 3:43 AM, Christian Maeder <Christian.Maeder(a)dfki.de> wrote: > > What is the exact command to get the relevant ghc sources. > First, make sure that your installed GHC is *not* a snapshot distribution, but one of the main releases (such as 7.6.1 or 7.6.2). You may also want to check out http://hackage.haskell.org/trac/ghc/wiki/Building/Preparation to make sure you have all the needed software. Then, go somewhere convenient on your computer, and run this (assuming Linux/Mac OS): git clone http://darcs.haskell.org/ghc.git; cd ghc; ./sync-all --testsuite get; perl boot; ./configure; make At the end of that (will probably take about an hour), you will have ghc available in <your convenient location>/ghc/inplace/bin/ghc-stage2 I believe you can use a --with-ghc=... option to cabal to install packages with an uninstalled ghc. Or, you could use a --prefix=... option to ./configure, above, and then run `make install` after building. I hope this helps! Richard

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RE: HP 2013.2 and GHC 7.6.2
by Simon Peyton-Jones 16 Apr '13

16 Apr '13

Yes you need to be on branch "ghc-7.6", both for the GHC repos and for all the libraries. Something like ./sync-all checkout ghc-7.6 should do it Simon | -----Original Message----- | From: Christian Maeder [mailto:Christian.Maeder@dfki.de] | Sent: 16 April 2013 14:18 | To: Richard Eisenberg | Cc: Simon Peyton-Jones; Ian Lynagh; Haskell Libraries; ghc- | devs(a)haskell.org; haskell-platform(a)projects.haskell.org | Subject: Re: HP 2013.2 and GHC 7.6.2 | | Am 16.04.2013 14:29, schrieb Richard Eisenberg: | > | > On Apr 16, 2013, at 3:43 AM, Christian Maeder | <Christian.Maeder(a)dfki.de> wrote: | >> | >> What is the exact command to get the relevant ghc sources. | >> | > | > First, make sure that your installed GHC is *not* a snapshot | distribution, but one of the main releases (such as 7.6.1 or 7.6.2). You | may also want to check out | http://hackage.haskell.org/trac/ghc/wiki/Building/Preparation to make | sure you have all the needed software. Then, go somewhere convenient on | your computer, and run this (assuming Linux/Mac OS): | > | > git clone http://darcs.haskell.org/ghc.git; cd ghc; ./sync-all | > --testsuite get; perl boot; ./configure; make | | Thanks, for this. Do I need to give a branch name (which one?) to the | "git clone" command (option -b)? | | C. | | > | > At the end of that (will probably take about an hour), you will have | > ghc available in <your convenient location>/ghc/inplace/bin/ghc-stage2 | > | > I believe you can use a --with-ghc=... option to cabal to install | packages with an uninstalled ghc. Or, you could use a --prefix=... | option to ./configure, above, and then run `make install` after | building. | > | > I hope this helps! | > Richard | >

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RE: HP 2013.2 and GHC 7.6.2
by Simon Peyton-Jones 16 Apr '13

16 Apr '13

| Are you planning to make a ghc 7.6.3 release? I suppose so, but we'd prefer to make sure it works first. | Yes, I see no suitable snapshot distribution, though: | http://www.haskell.org/ghc/dist/stable/dist I hope Ian can help. I only pushed the fix this morning so there won't be a snapshot, and I don't know whether snapshots are being built for your platform. (Indeed I don't know what your platform is.) S | -----Original Message----- | From: Christian Maeder [mailto:Christian.Maeder@dfki.de] | Sent: 16 April 2013 08:44 | To: Simon Peyton-Jones | Cc: Ian Lynagh; Mark Lentczner; ghc-devs(a)haskell.org; haskell- | platform(a)projects.haskell.org; Haskell Libraries | Subject: Re: HP 2013.2 and GHC 7.6.2 | | Am 16.04.2013 08:35, schrieb Simon Peyton-Jones: | > | I just spoiled my day by | > | http://hackage.haskell.org/trac/ghc/ticket/7748 | > | with ghc-7.6.2 in our large project: | > | hets: <<loop>> | > | hets works fine with ghc-7.6.1 (and older versions). I haven't | > | located the error yet, though. | > | | > | Yet, I therefore conclude, GHC 7.6.2 ist not suited for the official | HP. | > | > Happily I have found and fixed #7748 in the 7.6 branch. | > | > Christian, is it possible for you to build the 7.6 branch and test | with Hets? | | Yes, I see no suitable snapshot distribution, though: | http://www.haskell.org/ghc/dist/stable/dist | | What is the exact command to get the relevant ghc sources. | | Are you planning to make a ghc 7.6.3 release? | | Thanks Christian | | > Simon | > | >

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HP 2013.2 and GHC 7.6.2
by Mark Lentczner 16 Apr '13

16 Apr '13

Friends - There has been some discussion on haskell-platform & libraries mailing list about the suitability of GHC 7.6.2 for the upcoming HP 2013.2. Given the aims of the platform: stability, no surprises, just works, we want to use the latestest version of GHC that best meets these goals so as to provide a base for the libraries (and users!) as they evolve forward. I'd appreciate hearing this community's thoughts on the choice of GHC version for this release. — Mark "Chief Haskell Gift-Wrapper" Lentczner

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RE: Haskell Platform 2013.2 Proposal Status
by Simon Peyton-Jones 15 Apr '13

15 Apr '13

Bother. Which version of hets? How can I reproduce? Simon | -----Original Message----- | From: haskell-platform-bounces(a)projects.haskell.org [mailto:haskell- | platform-bounces(a)projects.haskell.org] On Behalf Of Christian Maeder | Sent: 12 April 2013 10:26 | To: Mark Lentczner | Cc: haskell-platform(a)projects.haskell.org; Haskell Libraries | Subject: Re: Haskell Platform 2013.2 Proposal Status | | Hi, | | I just spoiled my day by http://hackage.haskell.org/trac/ghc/ticket/7748 | with ghc-7.6.2 in our large project: | | hets: <<loop>> | | hets works fine with ghc-7.6.1 (and older versions). I haven't located | the error yet, though. | | Yet, I therefore conclude, GHC 7.6.2 ist not suited for the official HP. | | Cheers Christian | | Am 11.04.2013 07:33, schrieb Mark Lentczner: | > Well, I admit I am a bit tardy with this, and a few dates in the | > schedule have come and gone. But have no fear, I think we'll be okay. | > | > /*All: */ | > Updated the time line the 2013.2 release: | > | > * *Today* - Call for proposals ends (no more proposals considered) | > * *April 15th* - Proposals decided, Initial version list | > * *April 22th* - First candidates | > * *April 29th* - Open issues resolved, Second candidates | > * *May 6th* - Final release candidates | > | > /*Proposals:*/ | > These are the proposals being considered for 2013.2, and my current | > assessment of the "rough consensus": | > | > * *case-insensitive:* general consensus for including | > * *attoparsec: *general consensus for including | > * | > * *unordered-containers:* general consensus for including | > * *hashable:* while there has been much discussion about what to do | > going forward, I see general consensus that accepting version 1.1 | > into the platform (which is required by other proposals here) | > * *OpenGL *&* GLUT:* these have been repackaged by Jason to meet all | > the concerns of the community. They include two new lower-level | > packages *OpenGLRaw* and *GLURaw*. General consensus | > for continuing to include, with the lower level packages, and | > upgraded to latest versions (yay!) | > * *JuicyPixels:* people like the idea of having a library like this | > one, perhaps even this one, but there is concern that this API | > hasn't baked enough. There is not enough consensus for including. | > | > I give you all until Monday for any further discussion, and then we'll | > call it. | > | > /*Versions*/ | > I now call it official: HP 2013.2 will use GHC 7.6.2. Library | > maintainers: Please get ready to answer my e-mail when it come | > a'knockin' on your inbox with the version of your lib we should ship | > in this release. | > | > - Mark "Chief Haskell Gift-Wrapper" Lentczner | > | > | > | > | > _______________________________________________ | > Libraries mailing list | > Libraries(a)haskell.org | > http://www.haskell.org/mailman/listinfo/libraries | > | | | _______________________________________________ | Haskell-platform mailing list | Haskell-platform(a)projects.haskell.org | http://projects.haskell.org/cgi-bin/mailman/listinfo/haskell-platform

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upstream repos and wiki's "Workflow with validate"
by Nicolas Frisby 15 Apr '13

15 Apr '13

Hi all. I'm prepping for my first GHC commit, so I'm paying attention to all the details. I'm following the workflow described here http://hackage.haskell.org/trac/ghc/wiki/WorkingConventions/Git#Workflowwit… And I have a couple questions. Ultimately, I'm wondering if I'm doing something wrong or if those commands on that wiki page are either out-of-date or don't list some prerequisites. Question #1 When I run ./sync-all new The output shows lots of commits from the upstream repositories. * Is there a sync-all switch to avoid that somehow? * Is ./sync-all push going to push those? That'd be bad. Question #2 I omit dph from my working tree. Consequently, I think, sync-all in the validate tree chokes on some of the commands from that's wiki page's workflow (eg ./sync-all new). This choking prevents it from executing the command on the repos that come after dph in the list (ie the top-level GHC repo). Adding --no-dph doesn't seem to help here. Are there any known pitfalls here that I may have tripped into? Or perhaps some flags I could add to my command lines? Else, it seems that adding dph to my working repo is necessary for validation with this suggested workflow. Thank you for your time.

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RE: Crash on Windows with large data
by Simon Peyton-Jones 15 Apr '13

15 Apr '13

Yitz and others | Would you and your team be interested in looking at this? In principle yes of course. I wish we had a "team", as in a bunch of people whose job it is to make GHC fantastic. However we certainly do have a team of volunteers who do amazing things; and one (totally heroic and overworked) Ian Lynagh who really does have it as his job. So in practice it might be harder. Does anyone feel able to help Yitz? Ian might, depending on how hard it was to put him into a position where he could reproduce it. Plus it depends on how critical it is for you. Simon | -----Original Message----- | From: sefer.org(a)gmail.com [mailto:sefer.org@gmail.com] On Behalf Of | Yitzchak Gale | Sent: 21 March 2013 21:03 | To: Simon Peyton-Jones | Subject: Crash on Windows with large data | | Hi Simon, | | At work, we have an app that ran into a BEX64 crash on Windows when | processing a large and complex data set. I compiled a special version of | our app with GHC 7.6.2 for Windows, because we suspect it needs to run | on 64 bits. | | On Linux, the same app compiled with 7.4.2 runs to completion when | processing the same data, although it does use as much as 15 GB of | memory in the process. The Windows version crashed when it hit something | over 5 GB or memory usage. | | Would you and your team be interested in looking at this? | | The problem is, both our app and our customer's data is proprietary. | The customer is a well-know very large corporation. Due to the nature of | the problem, I doubt there is any reasonable way to isolate the problem. | I imagine we would need to send you the original code and data. Is there | some sort of arrangement that can be made for this situation? | | Thanks, | Yitz

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fyi: I broke DEBUG
by Nicolas Frisby 12 Apr '13

12 Apr '13

I've validating the reversion of my offending patch right now. I now see that validate doesn't test DEBUG unless you provide --slow. Lesson learned. My apologies. Thanks.

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wiki page for active branches
by Nicolas Frisby 12 Apr '13

12 Apr '13

If you're knowledgeable about a GHC branch in the repo, please add a brief description of it to this wiki page. http://hackage.haskell.org/trac/ghc/wiki/ActiveBranches If you're a proud "owner" of a branch, please also list yourself as the point of contact. Thanks!

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wiki page explaining the git branches
by Nicolas Frisby 12 Apr '13

12 Apr '13

I'd like a wiki page that briefly explains the git branches. 1) Does it exist? My search for it failed. 2) Should it exist? I'll be happy to create it. (And to pester people until they update it.) Thanks much.

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