[GHC] #13574: crash when using template haskell and ghc-mod

[GHC]

#13574: crash when using template haskell and ghc-mod
---------------------------------+--------------------------------------
        Reporter:  quisquous     |                Owner:  (none)
            Type:  bug           |               Status:  closed
        Priority:  normal        |            Milestone:
       Component:  Compiler      |              Version:  7.10.3
      Resolution:  fixed         |             Keywords:
Operating System:  OpenBSD       |         Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown  |            Test Case:
      Blocked By:                |             Blocking:
 Related Tickets:                |  Differential Rev(s):
       Wiki Page:                |
---------------------------------+--------------------------------------
Changes (by quisquous):

 * status:  new => closed
 * resolution:   => fixed


Comment:

 I upgraded my machine to OpenBSD 6.1 and I get a permissions issue when
 running ghc-mod instead:

 {{{
 Failed to execute process '/home/scott/.local/bin/ghc-mod'. Reason:
 exec: Permission denied
 }}}

 and on the console I see:

 {{{
 /home/scott/.local/bin/ghc-mod(78252): W^X binary outside wxallowed
 mountpoint
 }}}

 I suspect the crash I was seeing in 6.0 was related to OpenBSD not
 allowing WX by default. Workaround is to put the ghc-mod binary in a
 location that allows WX, like /usr/local, or by setting wxallowed on the
 /home partition by updating /etc/fstab.

 In any case, once I set wxallowed on /home, /home/scott/.local/bin/ghc-mod
 no longer gives a permissions error AND it does not crash when checking a
 Template Haskell project.

 I'm going to close the ticket for now, I'll reopen it if I am able repro
 the crash some other way. Thanks for looking into this!

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13574#comment:6>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler