[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

** Changed in: darcs Status: Fix Released => Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/263773 Title: ghc 6.8.2 has important performance bug, should be updated to 6.8.3 To manage

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

** Changed in: darcs Status: Incomplete => Fix Released -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

It has been marked as resolved on the darcs-roundup. Presumably launchpad will notice at some point and mark it as resolved here. -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a mem

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

** Changed in: darcs Status: Fix Released => Incomplete -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

** Changed in: darcs Status: Incomplete => Fix Released -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Alright, SRU bug is at bug #280129 -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lis

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Hi, On Tuesday 07 October 2008 14:27:40 Iain Lane wrote: > It depends how conservative we want to be I guess. All of the fixes > between Hardy and Intrepid are bug/buildfixes so there should be no new > regressions introduced, but this is the only fix we really want. > Subscribing motu-sru for an

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

It depends how conservative we want to be I guess. All of the fixes between Hardy and Intrepid are bug/buildfixes so there should be no new regressions introduced, but this is the only fix we really want. Subscribing motu-sru for an opinion. As for darcs, a simple grepping of the source shows that

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Hi Iain, On Tuesday 07 October 2008 12:55:51 Iain Lane wrote: [..] > > Stefan, do you think it's reasonable to SRU this latest GHC upload and a > Darcs rebuild for Hardy? It'd be a shame if the LTS release was > permanently hit by this. ghc6: yes, I'd personally like to see it fixed in hardy. I

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Mark, I've updated them to 2.1.0pre2, and subsequently to pre3. The binaries for Intrepid should therefore have the fix. Stefan, do you think it's reasonable to SRU this latest GHC upload and a Darcs rebuild for Hardy? It'd be a shame if the LTS release was permanently hit by this. I'll prepare t

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

This bug was fixed in the package darcs - 2.0.2-2ubuntu2 --- darcs (2.0.2-2ubuntu2) intrepid; urgency=low * Rebuild with fixed ghc6 to fix an performance problem, LP: #263773. -- Stefan Potyra <[EMAIL PROTECTED]> Mon, 29 Sep 2008 20:30:21 +0200 ** Changed in: darcs (Ubuntu)

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

uploaded, but it's currently sitting in the queue (beta freeze). ** Changed in: darcs (Ubuntu) Status: Confirmed => Fix Committed -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you ar

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Iain, Would you be able to update your 2.0.2 PPA binaries for Hardy as well? https://launchpad.net/~laney/+archive Mark -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member o

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

excellent, thanks! I'll upload the rebuild once I'm home from work. ** Changed in: darcs (Ubuntu) Assignee: (unassigned) => StefanPotyra (sistpoty) -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notificati

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

A darcs developer has confirmed that the updated darcs is fixed. ( reference: http://bugs.darcs.net/msg6171 ). Please proceed with making the fixed darcs binary available. Again, thanks so much for this! I plan to release a blog post soon highlighting the ease of installing darcs 2 on Ubuntu, a

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Stefan, This is truly great news. I've begun to work with Eric Kow, a darcs leader, to confirm the fix. >From the original darcs bug report, it looks like the trigger case to test is running "darcs whatnews --summary" on a largish repo that is in the 'hashed' or 'darcs-2' format. Trying that wi

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

** Attachment added: "darcs_2.0.2-2ubuntu2_i386.deb" http://launchpadlibrarian.net/18008357/darcs_2.0.2-2ubuntu2_i386.deb -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member o

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

This bug was fixed in the package ghc6 - 6.8.2-6ubuntu2 --- ghc6 (6.8.2-6ubuntu2) intrepid; urgency=low * libraries/unix/configure.ac: Use AC_SYS_LARGEFILE, taken from . Fixes accessing getSymbolicLinkStatus with the wrong off

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Woohoo. Good news everyone: After some looking, fiddling and test-building, I've found that I was wrong: The _FILE_OFFSET_BITS definition is local to hsunix of ghc6, so it cannot affect the ABI of other libraries. And even better: Comparing the interface (I used --show-iface and checked defined

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

> What other options do we have to fix darcs? Is there any workaround > we could apply to darcs? Perhaps this is a solution that it outside of the normal package management workflow, but wouldn't this work: 1. Download and compile GHC 6.8.3 for Ubuntu from here: http://www.haskell.org/ghc/do

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Hi Iain, first off, what I think that change will result in is -DLARGE_FILE_OFFSET being passed to ghc6 internal libraries when compiled as C-code. I'm not entirely sure if this will match/won't match the compiler flags for cabalized packages. So the possibility of a different ABI for packages

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

** Changed in: ghc Status: Unknown => Fix Released -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs maili

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

** Changed in: darcs Status: Unknown => Incomplete -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs maili

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

To be honest this feels very risky to me, and I'm having grave doubts that anything other than a full transition is good enough. I can quite easily see this introducing unforseen regressions that are only picked up once Intrepid is released and people start hammering on it seriously. We then get in

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

> Imho any breakage should be limited to packages that really do quite nasty > things. > Hence I guess we could risk a shot in the dark and apply that. I'd like to do > some tests > however first (esp. ghc --show-iface against the resulting .hi files from > that change). Stefan, That sounds

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

@Mark: using a binary distribution to build darcs doesn't make sense, since haskell packages are not arch:all packages. Also haskell libraries are not like regular c shared objects, but rather get linked statically once a binary is created, so there are no depends on haskell libraries found in darc

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Given the ABI breaks, what about packaging GHC 6.8.3 as a separate package, then port the necessary packages next release, and then for intrepid+1 we can simply sync the updated packages from Debian once they finish their transition? -- ghc 6.8.2 has important performance bug, should be updated t

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Are there darcs dependencies that also build against ghc? If so they'd all have to be built against the same version. -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubun

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

There is a binary distribution of GHC 6.8.3 available for Linux: http://www.haskell.org/ghc/download_ghc_683.html#x86linux Could this be used to build an updated darcs binary until the official GHC packages can be updated to 6.8.3? -- ghc 6.8.2 has important performance bug, should be updated t

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

What about applying the patch at: http://hackage.haskell.org/trac/ghc/ticket/2093 ? -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubun

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Hi, On Monday 08 September 2008 13:32:36 Mark Stosberg wrote: [..] > > have this bug without changing the ABI? > > Stefan said "the fix would change the ghc6 abi". That could be clarified > was to whether *any* fix would do that, or fixing it via upgrading 6.8.3 > would do that. Any fix applied t

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Hi, On Friday 05 September 2008 21:11:41 Zooko O'Whielacronx wrote: > This is actually a correctness bug for other applications that use the > filesystem and use GHC, right? GHC is returning incorrect values for > file size and other stats, is that right? And darcs somehow manages to > turn this

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

> This is actually a correctness bug for other applications that use the filesystem and use GHC, right? Right, with darcs perhaps being the most popular. > GHC is returning incorrect values for file size and other stats, is that right? I believe so. > And darcs somehow manages to turn this inco

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

This is actually a correctness bug for other applications that use the filesystem and use GHC, right? GHC is returning incorrect values for file size and other stats, is that right? And darcs somehow manages to turn this incorrect answer into a correct but slow answer? What about the option of p

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

I'm convinced we should not try this as unfortunate as that may be. -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

If I remember correctly, there are packages which have hardcoded (build-)dependencies with some haskell-related packages, so package list could be longer than the actual. Debian didn't manage to move to 6.8.3 yet (in experimental neither), so this job would be all ours. Suppose a package wouldn't

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Having gone through the gfortran transition during last freeze (which was easy compared with this) and so having some experience about the issues that this will encounter (lack of manpower, reliance on archive-admins to do syncs, possible interdependencies, secondary build depends, etc.) doing t

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

I suspect the sequence is the main thing. Can you write something up on that? -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

well, due to vacation, I'd only be able to update (or patch) ghc6 after Monday next week. So starting after that, I doubt that I can get anywhere close to complete a haskell transition for intrepid on my own. OTOH, the packaging changes are actually quite easy/straightforward tasks, so with some h

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

If there are people who can do this and are willing to invest the time it seems reasonable to go for it. If a few get left to -updates it's not the end of the world. Given the way the last one went and geser's announcements tha he's largely absent for some time, I think it comes down to you.

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

On Tuesday 02 September 2008 01:44:06 Scott Kitterman wrote: > That seems like a lot. yes, it actually *is* a lot. I mean I cannot say which of the two options, to either do a lot of work (and risk the transition to not complete), or to have a buggy ghc6 is the better/worse option, and which wi

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

That seems like a lot. -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.co

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

It should be merely a "rebuild", but all source packages would need to be modified: Since the ABI of the libs is also (as is the case for this bug) dependant on the haskell compiler used, all (library) packages have quite strict dependencies on the particular ghc6 version. Furthermore, these "rebui

Re: [Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Is it just rebuilds and how many packages? -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

I'm willing to help with any work that needs to be done for this, as I'd really like to see 6.8.3 in Intrepid. -- ghc 6.8.2 has important performance bug, should be updated to 6.8.3 https://bugs.launchpad.net/bugs/263773 You received this bug notification because you are a member of Ubuntu Bugs,

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Hi, thanks for the bug report, confirming. As far as I've seen it right now, it looks though that the fix would change the ghc6 abi, so all libraries would need to rebuilt. Having entered feature freeze for intrepid already, I doubt we should go for the risk of doing a haskell transition before t

[Bug 263773] Re: ghc 6.8.2 has important performance bug, should be updated to 6.8.3

Dear motu-release, the problem seems to be for real in ghc6, using the wrong defines for structs passed to libc, cf. http://hackage.haskell.org/trac/ghc/ticket/2096 and http://hackage.haskell.org/trac/ghc/ticket/2093. This means, that everything dealing with the file system (as in e.g. calling sta