[GHC] #10840: Periodic alarm signals can cause a retry loop to get stuck

[GHC]

#10840: Periodic alarm signals can cause a retry loop to get stuck
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        Reporter:  Rufflewind    |                Owner:  bgamari
            Type:  bug           |               Status:  patch
        Priority:  high          |            Milestone:  8.2.1
       Component:  Compiler      |              Version:  7.10.2
      Resolution:                |             Keywords:
Operating System:  MacOS X       |         Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown  |            Test Case:
      Blocked By:                |             Blocking:
 Related Tickets:                |  Differential Rev(s):  Phab:D2796
       Wiki Page:                |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"d70d452a38bed3321bfc3c14074a6b3e1f30a090/ghc"
 d70d452a/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="d70d452a38bed3321bfc3c14074a6b3e1f30a090"
 rts: Use pthread itimer implementation on Darwin

 We want to avoid using SIGALRM whenever possible since we will interrupt
 long-running system calls. See #10840.

 Test Plan: Validate on Darwin

 Reviewers: austin, erikd, simonmar

 Reviewed By: simonmar

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D2796

 GHC Trac Issues: #10840
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10840#comment:21>
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