RE: loop when running hsc
With ghc-4.08.1, running on Linux with -0 -O2-for-C, I get: loop With ghc-4.08, running on Solaris, with -O -O2-for-C, I get: hsc: no threads to run: infinite loop or deadlock? With ghc-4.08, running on Solaris, with -Onot, the compilation works. For the sources you will need the whole of UniForM again, instructions on request. What is going on? loop indicates a black hole - the RTS detected the main thread was self-referential and raised the NonTermination exception, which is printed as "loop". The test isn't foolproof, so sometimes you get the deadlock message instead (but this needs some further investigation, it seems). It's worrying that compiling without optimisation causes the program to terminate correctly. This indicates a possible strictness analyser bug. Ok, we'll need to investigate but this is going to be a tricky one to track down. Is there any way you can try to narrow down the problem? Cheers, Simon ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: loop when running hsc
Simon Marlow wrote: Ok, we'll need to investigate but this is going to be a tricky one to track down. Is there any way you can try to narrow down the problem? sigh Oh alright then. It's taken me some time but attached is a version narrowed down to just two files. When you've unpacked it, go into the directory and do gmake GHC=... BUG where "..." is your ghc command (for Linux, 4.08.1). At the end of the second compilation I get a message: hsc: no threads to run: infinite loop or deadlock? ghcbug.tar.gz
Re: Why is variable out of scope?
Simon Peyton-Jones wrote: It's a bug all right, and a bizarre one at that. It's fixed in the before-ghci-branch. I'm not quite certain when it got fixed, mind you! Hmm. Maybe we're going to need 4.08.2. The trouble with all this wondrous new GHC code is that one suspects that it has fixed many of the old bugs by introducing lots of NEW ones. Have you tried compiling UniForM (now up to 48000 lines of Haskell) with GHC lately? I stopped trying to compile GHC from CVS ages ago when I was getting unexplained core dumps which apparently could only be fixed by reinstalling gcc/binutils . . . I would appreciate it if the two bugs I've reported in the last two days were fixed, but I wonder where on earth this is going. Is the idea to keep on producing 4.08.* patches until you're finally confident enough with the head branch of the CVS repository to turn it into a proper release? ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
RE: Why is variable out of scope?
| Have you tried | compiling UniForM (now up to 48000 lines of Haskell) with | GHC lately? | | No, and perhaps it should be part of our nightly test suite | (which already contains several hundred thousand lines of code, BTW). George, Good idea! Send us details about how to get access to your CVS archive, plus instructions on how to build it, and we'll set it up. Simon ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: Why is variable out of scope?
Simon Peyton-Jones wrote: Send us details about how to get access to your CVS archive, plus instructions on how to build it, and we'll set it up. Well you can read http://www.informatik.uni-bremen.de/~ger/cvs/CVS.html but (touch wood) the following should work (bash is assumed) (1) export CVSROOT=:pserver:[EMAIL PROTECTED]:/repository (2) cvs login and type "cvsread" when it asks for a password. (3) cvs checkout uni (4) cd uni (5) you need to manually edit (sorry, I'm just about to work on the configuration business, honest . . .) the file mk/machinedep.mk to set the variables HCHOME (where is GHC) and SOCKETLIB (depends on Linux/Solaris); see comments in file. (6) ./CONFIG (If it produces warnings about not being able to find Wish etcetera, that means you won't be able to run the programs until it can, but you should be able to compile them.) (7) gmake depend (8) gmake clean If you're freshing the sources: (1) cd uni (2) cvs update -Pd (3) ./CONFIG (4) gmake depend (5) gmake should work. ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: Why is variable out of scope?
Simon Marlow wrote: [snip] I stopped trying to compile GHC from CVS ages ago when I was getting unexplained core dumps which apparently could only be fixed by reinstalling gcc/binutils . . . And that's our fault? [snip] I've no idea whose fault it is. I think there are various complications about whether or not one should use the system ld/ar utilities with gcc which _may_ be to blame, but i think I gave up on investigating this. In any case ghc4.08 is a pretty good release which has everything I need and does indeed seem to be comparatively free of bugs, so there's little temptation to upgrade. It's also good that other people can compile UniForM without going through the hassle of getting a CVS release of GHC compiled. ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
RE: Why is variable out of scope?
We're planning to continue make minimal fixes to 4.08, and at some point release 4.08.2. It's hard to get to a stable point, and 4.08 is pretty solid, so the best plan seems to be to continue to fix it -- even though that involves some extra work on our part to find bugs that have (probably) already been fixed somewhere higher up. In short: 4.08.2 should be solider than 4.08.1, whereas the next full release will be more like 4.08.0. (but it'll have more features too) Simon | -Original Message- | From: George Russell [mailto:[EMAIL PROTECTED]] | Sent: 02 November 2000 16:34 | To: Simon Marlow | Cc: Simon Peyton-Jones; GHC bugs (E-mail) | Subject: Re: Why is variable out of scope? | | | Simon Marlow wrote: | [snip] | I stopped trying to compile GHC from CVS ages ago when I was | getting unexplained | core dumps which apparently could only be fixed by | reinstalling gcc/binutils . . . | | And that's our fault? | [snip] | I've no idea whose fault it is. I think there are various | complications about whether or not one should use the | system ld/ar utilities with gcc which _may_ be to blame, | but i think I gave up on investigating this. | | In any case ghc4.08 is a pretty good release which has | everything I need and does indeed seem to be comparatively free | of bugs, so there's little temptation to upgrade. It's also good | that other people can compile UniForM without going through the | hassle of getting a CVS release of GHC compiled. | ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
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