#5909: Segfault with multi-threaded retainer profiling
---------------------------+------------------------------------------------
Reporter: akio | Owner:
Type: bug | Status: new
Priority: normal | Component: Runtime System
Version: 7.4.1 | Keywords:
Os: Linux | Architecture: x86_64 (amd64)
Failure: Runtime crash | Testcase:
Blockedby: | Blocking:
Related: |
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I see the following program often segfaults when compiled and run like
this:
{{{
% ghc -threaded -O2 -prof -fprof-auto segfault.hs -rtsopts
[1 of 1] Compiling Main ( segfault.hs, segfault.o )
Linking segfault ...
% ./segfault aaaaaaaaaaaaaaaaaaaaaaa +RTS -hr -N5 -V -A512K
# Segfaults, often within a minute.
}}}
It also seems to me that it segfaults more often/quickly when some other
process is actively running on the same machine. I kept "ghc -e 'last
[1..]' +RTS -A13G" running while making the test case. The machine I used
has 4 cores, 8 HT threads and 16GB RAM.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5909>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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