[GHC] #11190: Hello "schedule: re-entered unsafely."

[GHC]

#11190: Hello "schedule: re-entered unsafely."
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        Reporter:  Chobbes        |                Owner:
            Type:  bug            |               Status:  infoneeded
        Priority:  normal         |            Milestone:
       Component:  Compiler       |              Version:  7.10.2
      Resolution:                 |             Keywords:
Operating System:  Linux          |         Architecture:  arm
 Type of failure:  Runtime crash  |            Test Case:
      Blocked By:                 |             Blocking:
 Related Tickets:  951, #9920     |  Differential Rev(s):
       Wiki Page:                 |
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Comment (by Chobbes):

 Replying to [comment:1 bgamari]:
 > I believe I encountered the same issue not so long ago when using
 Debian's LLVM 3.5 version, which is unfortunately missing some rather
 critical fixes (see #9920 for details).
 >
 > Can you reproduce this with LLVM 3.5.2?

 I have been trying a
 [https://haskellembedded.github.io/posts/2015-12-15-arm.html number of
 things desperately (don't judge)], so I am a bit turned around as to what
 I have tried. I might not have done this on the Pi yet.

 I noticed this issue in trac as well, so I have been trying higher LLVM
 versions where possible. It did seem like a different error, however. Do
 you have a program which can reproduce the results in #9920?

 Currently I have tested with Gentoo LLVM versions 3.5.0, 3.5.2, and 3.6.2
 which have all had the same problem. This is in a fresh qemu-user-arm
 chroot (as described in the above post). This is also using the ARMv7
 binaries provided for GHC 7.10.3.

 I will try to get LLVM 3.5.2 on my pi tomorrow to confirm.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11190#comment:2>
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