#7319: +RTS -xc sometimes results in segfault
---------------------------------+------------------------------------------
Reporter: edsko | Owner:
Type: bug | Status: new
Priority: high | Milestone: 7.6.2
Component: Runtime System | Version: 7.6.1
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: None/Unknown
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
---------------------------------+------------------------------------------
Comment(by edsko):
With ghc 7.6.1, built with BuildFlavour = quick and
{{{
GhcRTSWays += thr_debug_p
GhcLibWays += p
}}}
and my program compiled with
{{{
/Users/ghc761src/local/bin/ghc
--make
-fbuilding-cabal-package
-O
-prof
-osuf p_o
-hisuf p_hi
-odir dist/build/TestTCP/TestTCP-tmp
-hidir dist/build/TestTCP/TestTCP-tmp
-stubdir dist/build/TestTCP/TestTCP-tmp
-i
-idist/build/TestTCP/TestTCP-tmp
-itests
-idist/build/autogen
-Idist/build/autogen
-Idist/build/TestTCP/TestTCP-tmp
-optP-include
-optPdist/build/autogen/cabal_macros.h
-hide-all-packages
-no-user-package-db
-package-db /Users/ghc761src/wt/distributed-process/network-
transport-tcp/cabal-dev/packages-7.6.1.conf
-package-db dist/package.conf.inplace
-package-id base-4.6.0.0-d39b00b5e4b05de79ae2b5613c172a94
-package-id network-2.4.0.1-72159ce0d6b117cafd37466cda4aaba8
-package-id network-
transport-0.3.0-f4373e453d0b1f3262127e4e25aab6a8
-package-id network-transport-
tests-0.1.0.1-0b39541e2389961bf7419cf39451169c
-package-id network-transport-tcp-0.3.1-inplace
-XHaskell98
-XCPP
-XOverloadedStrings tests/TestTCP.hs
-o dist/build/TestTCP/TestTCP
-threaded
-rtsopts
-with-rtsopts=-N
-fprof-auto
-debug
}}}
gdb invoked with
{{{
gdb --args dist/build/TestTCP/TestTCP +RTS -xc
}}}
I get the stack trace
{{{
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000001006db0
[Switching to process 34875 thread 0x1203]
0x0000000100bf29ae in fprintCCS_stderr (ccs=0x101d88700,
exception=0x101d512e1, tso=0x101d09db0) at Profiling.c:1071
1071 switch (info->type) {
(gdb) bt
#0 0x0000000100bf29ae in fprintCCS_stderr (ccs=0x101d88700,
exception=0x101d512e1, tso=0x101d09db0) at Profiling.c:1071
#1 0x0000000100c40797 in stg_raisezh ()
#2 0x00000001001220e8 in sgg1_info_dsp ()
Previous frame inner to this frame (gdb could not unwind past this
frame)
}}}
Hope that helps.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7319#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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