#7567: invalidateModSummaryCache throws exception if ms_hs_date is 0 -------------------------------------+------------------------------------- Reporter: edsko | Owner: Type: bug | thoughtpolice Priority: high | Status: infoneeded Component: Compiler | Milestone: 7.12.1 Resolution: | Version: 7.6.1 Operating System: Unknown/Multiple | Keywords: Type of failure: None/Unknown | Architecture: Blocked By: | Unknown/Multiple Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * status: new => infoneeded Comment: Edsko: I am having trouble reproducing your issue. The file `main/GHC.hs` uses `Data.Time` from the `time` package, and has so from the beginning. `Time.toClockTime` is a function from the `old- time` package, which GHC doesn't use. How can it throw an error? Also if I call `addUTCTime (-1)` on `UTCTime (ModifiedJulianDay 0) (secondsToDiffTime 0)`, and force its result, nothing bad happens. Can you give me instructions how to trigger the bug. Thanks. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7567#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler