[GHC] #10375: arm: ghci hits an illegal instruction

[GHC]

#10375: arm: ghci hits an illegal instruction
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        Reporter:  erikd             |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:  7.10.2
       Component:  GHCi              |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:  arm
 Type of failure:  GHCi crash        |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by erikd):

 Managed to run `ghc-stage2 --interactive` in one terminal and the attach
 GDB to it in another using `ghc -tui -p <pid>`. I can then manually enter
 the two lines of test case code and have it segfault.

 The GDB backtrace is a little odd (even by haskell program standards):

 {{{
 Program received signal SIGSEGV, Segmentation fault.
 [Switching to Thread 0xb14ff460 (LWP 19914)]
 Cannot access memory at address 0xb88849d4
 (gdb) bt
 #0  0xb88849d4 in ?? ()
 #1  0x70000000 in ?? ()
 Backtrace stopped: previous frame identical to this frame (corrupt stack?)
 }}}

 but that address `0xb88849d4` being in both the "Cannot access memory at"
 message and the stack might point to stack corruption while the
 `0x70000000` address on the stack is *very* suspicious.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10375#comment:11>
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