[GHC] #9446: Segfault when using unsafe vector operations

[GHC]

#9446: Segfault when using unsafe vector operations
----------------------------------------+----------------------------------
              Reporter:  snoyberg       |            Owner:
                  Type:  bug            |           Status:  closed
              Priority:  normal         |        Milestone:
             Component:  Compiler       |          Version:  7.8.3
            Resolution:  invalid        |         Keywords:
      Operating System:  Linux          |     Architecture:  x86_64 (amd64)
       Type of failure:  Runtime crash  |       Difficulty:  Unknown
             Test Case:                 |       Blocked By:
              Blocking:                 |  Related Tickets:
Differential Revisions:                 |
----------------------------------------+----------------------------------
Changes (by klao):

 * cc: klao@… (added)


Comment:

 Hmm, this sounds quite restrictive. So, do I understand correctly that
 there is no way to freeze a part of a mutable vector? Even if I know that
 that part will not change?

 Can you point to a relevant description of this part of the GC? I'd like
 to understand the situation better to figure out what kind of work-around
 is possible (if at all).

 Thank you!

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9446#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler