#5005: epollCreate: unsupported operation (Function not implemented)
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Reporter: nomeata | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.0.2 | Keywords:
Testcase: | Blockedby:
Os: Linux | Blocking:
Architecture: Unknown/Multiple | Failure: Compile-time crash
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Comment(by tibbe):
Replying to [comment:8 nomeata]:
> Replying to [comment:6 tibbe]:
> > I'd be fine to include a run-time check if necessary.
>
> right, I saw that. The problem is that we (at least in Debian) expect a
ghc built on a newer kernel to also work on an older kernel.
>
> The alternative to a run-time check is using epoll_create() only. The
only difference is, as far I was told, when another thread forks between
the call to epoll_create() and setCloseOnExit. Given that this is
acceptable behaviour on pre-2.6.27 kernels, woudn’t it be acceptable
behaviour on later kernels as well?
Perhaps. I haven't considered the issue in depth so I don't know what the
consequences of using `epoll_create` instead of `epoll_create1` are. If
the fix I posted fixes the problem we don't even have to make a trade-off.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5005#comment:9>
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