#10355: Dynamic linker not initialised -------------------------------------+------------------------------------- Reporter: dpiponi | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Runtime System | Version: 7.10.1 (Linker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9868 | Differential Revisions: -------------------------------------+------------------------------------- Changes (by ezyang): * related: 9868 => #9868 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10355#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

#10355: Dynamic linker not initialised -------------------------------------+------------------------------------- Reporter: dpiponi | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: Component: Runtime System | Version: 7.10.1 (Linker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9868, #10919 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by adamgundry): * related: #9868 => #9868, #10919 Comment: See also #10919, which suggests this may be fixed in 7.10.3. I've just seen it in a large codebase using 7.10.2, where it appears to be related to the fact that my `.cabal` file was missing some `exposed-modules`. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10355#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

#10355: Dynamic linker not initialised -------------------------------------+------------------------------------- Reporter: dpiponi | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: Component: Runtime System | Version: 7.10.1 (Linker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9868, #10919 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by _deepfire): GHC 8.0.1-rc4 fails differently: {{{ <- [1 of 8] Compiling Table ( Table.hs, interpreted ) <- [2 of 8] Compiling Supplementary ( Supplementary.hs, interpreted ) <- Supplementary.hs:120:20-25: error: • Can't find interface-file declaration for type constructor or class MLogin Probable cause: bug in .hi-boot file, or inconsistent .hi file Use -ddump-if-trace to get an idea of which file caused the error • In the first argument of ‘Default’, namely ‘MLogin’ In the instance declaration for ‘Default MLogin’ Supplementary.hs:121:20-25: error: • Can't find interface-file declaration for type constructor or class MLogin Probable cause: bug in .hi-boot file, or inconsistent .hi file Use -ddump-if-trace to get an idea of which file caused the error • In the first argument of ‘Arbitrary’, namely ‘MLogin’ In the instance declaration for ‘Arbitrary MLogin’ Supplementary.hs:122:20-28: error: • Can't find interface-file declaration for type constructor or class MFullName Probable cause: bug in .hi-boot file, or inconsistent .hi file Use -ddump-if-trace to get an idea of which file caused the error • In the first argument of ‘Default’, namely ‘MFullName’ In the instance declaration for ‘Default MFullName’ Supplementary.hs:123:20-28: error: • Can't find interface-file declaration for type constructor or class MFullName Probable cause: bug in .hi-boot file, or inconsistent .hi file Use -ddump-if-trace to get an idea of which file caused the error • In the first argument of ‘Arbitrary’, namely ‘MFullName’ In the instance declaration for ‘Arbitrary MFullName’ Supplementary.hs:125:20-25: error: • Can't find interface-file declaration for type constructor or class Member Probable cause: bug in .hi-boot file, or inconsistent .hi file Use -ddump-if-trace to get an idea of which file caused the error • In the first argument of ‘Default’, namely ‘Member’ In the instance declaration for ‘Default Member’ Supplementary.hs:126:20-25: error: • Can't find interface-file declaration for type constructor or class Member Probable cause: bug in .hi-boot file, or inconsistent .hi file Use -ddump-if-trace to get an idea of which file caused the error • In the first argument of ‘Arbitrary’, namely ‘Member’ In the instance declaration for ‘Arbitrary Member’ Failed, modules loaded: Table. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10355#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

#10355: Dynamic linker not initialised -------------------------------------+------------------------------------- Reporter: dpiponi | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: Component: Runtime System | Version: 7.10.1 (Linker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9868, #10919 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by _deepfire): adamgundry: indeed, I can independently verify that 7.10.3 was healed by adding modules to the Cabal `exposed-modules`! -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10355#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

#10355: Dynamic linker not initialised -------------------------------------+------------------------------------- Reporter: dpiponi | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: Component: Runtime System | Version: 7.10.1 (Linker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9868, #10919, | Differential Rev(s): Phab:D5012 #13137, #13531, #13607 | Wiki Page: | -------------------------------------+------------------------------------- Comment (by Ben Gamari <ben@…>): In [changeset:"4fc6524a2a4a0003495a96c8b84783286f65c198/ghc" 4fc6524/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="4fc6524a2a4a0003495a96c8b84783286f65c198" Stop the linker panic If we fail to initialize the liker properly, we still set the `initLinkerDone`. In fact we even set that prior to actually initializing the linker. However if the linker initialization fails, we the `Done` state is still true. As such we run into the `Dynamic Linker not initialised` error. Which while technically corret is confusing as it pulls the attation away from the real issue. This change puts the Done state into an MVar, and as such ensureing that all parallel access needs to wait for the linker to be actually initialized, or try to re-initilize if it fails. Reviewers: bgamari, RyanGlScott, simonmar, hvr Reviewed By: bgamari Subscribers: rwbarton, thomie, carter GHC Trac Issues: #9868, #10355, #13137, #13607, #13531 Differential Revision: https://phabricator.haskell.org/D5012 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10355#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler