Skip to content

GitLab

  • Menu
Projects Groups Snippets
  • Help
    • Help
    • Support
    • Community forum
    • Submit feedback
  • Sign in / Register
  • GHC GHC
  • Project information
    • Project information
    • Activity
    • Labels
    • Members
  • Repository
    • Repository
    • Files
    • Commits
    • Branches
    • Tags
    • Contributors
    • Graph
    • Compare
    • Locked Files
  • Issues 4,869
    • Issues 4,869
    • List
    • Boards
    • Service Desk
    • Milestones
    • Iterations
  • Merge requests 456
    • Merge requests 456
  • CI/CD
    • CI/CD
    • Pipelines
    • Jobs
    • Schedules
    • Test Cases
  • Deployments
    • Deployments
    • Releases
  • Analytics
    • Analytics
    • Value stream
    • CI/CD
    • Code review
    • Insights
    • Issue
    • Repository
  • Wiki
    • Wiki
  • Snippets
    • Snippets
  • Activity
  • Graph
  • Create a new issue
  • Jobs
  • Commits
  • Issue Boards
Collapse sidebar
  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues
  • #5127
Closed
Open
Created Apr 16, 2011 by ClaudiusMaximus@trac-ClaudiusMaximus

internal error heapCensus unknown object with +RTS -N -hT

$ ghc -O3 -Wall --make -threaded -rtsopts -fspec-constr-count=50 autotune.hs
...
$ ./autotune +RTS -N -hT -RTS
...
autotune: internal error: heapCensus, unknown object: -538405951
    (GHC version 7.0.3 for x86_64_unknown_linux)
    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

The unknown object number varies between program runs, and I got a segmentation fault too in one test.

I didn't manage to provoke a crash with each of -N or -hT alone, but the combination seems problematic.

I compiled ghc-7.0.3 from source with INTEGER_LIBRARY=integer-simple (so I can use hmpfr); my code uses hmpfr, parallel, ad, Vec, and possibly some other things from hackage too - I can try to make a simple test case at some point, or attach the code as-is if it would be useful.

Trac metadata
Trac field Value
Version 7.0.3
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Profiling
Test case
Differential revisions
BlockedBy
Related
Blocking
CC claudiusmaximus@goto10.org
Operating system
Architecture
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information
Assignee
Assign to
Time tracking