stack hangs while linking (lld) with ghc 8.4+ #4433
Comments
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Hey @Keruspe - thanks for the report. I haven't been able to replicate the problem but I wonder if it's because I'm missing some important detail. The following worked for me with a fresh project on Debian Linux - does following the same steps fail for you? stack --resolver lts-11.22 new test
cd test
stack build
stack --resolver lts-12.21 buildAny other specifics you can share that might be relevant? What Linux distro are you using? If your code is public I don't mind trying again running against your repo if you'd like to share a link. |
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I'm running Exherbo. |
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I can't reproduce in a |
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@Keruspe Would you run again with |
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Here we go: |
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How long does it hang? You may want to try another linker — see https://stackoverflow.com/a/43243323 — and see whether it is a linker issue. |
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It hangs forever, never seen it timeout or whatever (let it ran for 3h once) |
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Looks the same with gold and lld. Fwiw: |
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And running a |
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And if you don't do it in a subdir of It's looking like a platform issue, at the moment — given we can't reproduce, I'm not quite sure what other help we can give, until you can isolate further. |
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No, lts-12 doesn't work at all on my machine. How can I find out why it's hanging? |
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It could well be a cabal 2.2/ghc 8.4 issue. Try stackage nightly? |
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Also try installing that ghc through your distro — there are lots of things to try, to isolate the issue. If it is with stack, we'll try to fix it — but right now that's far from obvious. |
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Nightly has the same issue fwiw, will try another ghc to see how it behaves |
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With stackage nightly and ghc 8.6.2 downloaded from fedora, it works |
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Ok, so I nuked all my |
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Cool, thanks for tracking down those details @Keruspe. |
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Glad you've got it working — I'll see whether anybody else has any ideas for a fix. |
dbaynard
changed the title
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This appears to me to be an upstream problem with either GHC or the system linker. @Keruspe are you able to reproduce this frozen linking with a direct call to the |
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Is there a 1.9.4 planned at some point? |
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Not right now, no. Is that query related to this discussion? I didn't see any mention of changes to Stack. |
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I don't know, just saw this issue be closed by a commit to stack |
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Oh, that's my mistake, I put the wrong issue number in that commit. |
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That said, I do believe this is an upstream issue that we are going to close, but still waiting for your response to the question above. |
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Heh, since reporting this issue I switched my system ld to lld and now I cannot seem to be able to reproduce... |
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Any update? |
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Hangs when running ghc manually too. |
I'm not aware of Stack trying to do that. If this occurs with GHC directly as well, this sounds like behavior occurring in GHC, not Stack. |
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Isn't stack responsible for generating e.g. |
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No, that's created by the GHC configure script, Stack simply runs it. |
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Oh, my bad then, that's definitely what needs fixing then |
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Please open an issue upstream with GHC if you want to pursue this. Closing as upstream |
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@snoyberg Would that be acceptable for stack to pass |
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If GHC has the wrong default, I'd rather see it fixed in GHC, rather than having Stack override GHC's settings. I don't think Stack currently has the ability to let the user pass parameters to GHC's |
General summary/comments (optional)
I'm using stack 1.9.3 and have a project using lts-11.22.
I tried updating it to lts-12 (lts-12.0 and lts-12.21 ends up with the same problem) and stack just hangs when linking the StackSetupShim
Steps to reproduce
Update from lts-11.22 to lts-12.21
Run
stack buildExpected
Build success
Actual
hangs forever
Stack version
Method of installation
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