#9771: Excessive memory usage compiling T3064 -------------------------------------+------------------------------------- Reporter: hvr | Owner: simonpj Type: bug | Status: new Priority: highest | Milestone: 7.10.1 Component: Compiler | Version: 7.9 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Unknown | Type of failure: Compile- Blocked By: | time performance bug Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- With 64dc4d1085a7db375f6532362bf7e23fac3a25eb the testsuite suffers from T3064 allocating an excessive amount of memory (several GiBs) and finally getting killed due to timeout and/or out-of-memory. {{{ =====> T3064(normal) 3054 of 4150 [0, 0, 0] cd ./perf/compiler && '/home/hvr/ghc/inplace/bin/ghc-stage2' -fforce- recomp -dno-debug-output -no-user-package-db -rtsopts -fno-warn-tabs -fno- ghci-history -c T3064.hs +RTS -V0 -tT3064.comp.stats --machine-readable -RTS >T3064.comp.stderr 2>&1 Compile failed (status 35072) errors were: Killed Failed to find field: peak_megabytes_allocated *** framework failure for T3064(normal) do_test exception Traceback (most recent call last): File "/home/hvr/ghc/testsuite/driver/testlib.py", line 793, in do_test result = func(*[name,way] + args) File "/home/hvr/ghc/testsuite/driver/testlib.py", line 995, in compile return do_compile( name, way, 0, '', [], extra_hc_opts ) File "/home/hvr/ghc/testsuite/driver/testlib.py", line 1024, in do_compile result = simple_build( name, way, extra_hc_opts, should_fail, top_mod, 0, 1, force, override_flags ) File "/home/hvr/ghc/testsuite/driver/testlib.py", line 1262, in simple_build statsResult = checkStats(name, way, stats_file, opts.compiler_stats_range_fields) File "/home/hvr/ghc/testsuite/driver/testlib.py", line 1136, in checkStats val = int(m.group(1)) AttributeError: 'NoneType' object has no attribute 'group' OVERALL SUMMARY for test run started at Wed Nov 5 08:29:10 2014 CET 0:04:14 spent to go through 4150 total tests, which gave rise to 16187 test cases, of which 16186 were skipped 0 had missing libraries 0 expected passes 0 expected failures 1 caused framework failures 0 unexpected passes 0 unexpected failures 0 unexpected stat failures make[1]: Leaving directory '/home/hvr/ghc/testsuite/tests' real 4m13.317s user 3m49.476s sys 0m5.831s }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9771> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler