[GHC] #10469: ghc crash on arm with -j2: internal error: scavenge: unimplemented/strange closure type

GHC ghc-devs at haskell.org
Mon Oct 19 21:42:15 UTC 2015


#10469: ghc crash on arm with -j2: internal error: scavenge: unimplemented/strange
closure type
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        Reporter:  joeyhess            |                Owner:
            Type:  bug                 |               Status:  new
        Priority:  normal              |            Milestone:
       Component:  Compiler            |              Version:  7.10.1
      Resolution:                      |             Keywords:
Operating System:  Linux               |         Architecture:  arm
 Type of failure:  Compile-time crash  |            Test Case:
      Blocked By:                      |             Blocking:
 Related Tickets:                      |  Differential Rev(s):
       Wiki Page:                      |
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Changes (by erikd):

 * cc: erikd (added)


Comment:

 Good news is that 7.10.2 is much better on Arm than 7.10.1 or 7.8.4. I
 also expect 7.10.3 and 8.0.1 to be better again.

 During debugging #10375 I found two serious problem with the interaction
 between Arm and Thumb2 code. Ghc 7.10.3 and 8.0 will both force all code
 to be `armv6-unknown-linux-gnueabihf` which should fix a lot of the
 problems like this one.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10469#comment:2>
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