#4820: "Invalid object in isRetainer" when doing retainer profiling in GHC 7
branch
-------------------------------+--------------------------------------------
Reporter: dleuschner | Owner:
Type: bug | Status: new
Priority: normal | Component: Profiling
Version: 7.0.1 | Keywords:
Testcase: | Blockedby:
Os: Linux | Blocking:
Architecture: x86_64 (amd64) | Failure: Runtime crash
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Now that issue #4362 is fixed I was doing some retainer profiling with the
current GHC 7 branch with Bryans patches from #4514 applied. After some
clients start connecting to our server it aborts with one of the following
messages:
{{{
SalviaDerivationGateway_p: internal error: Invalid object in isRetainer():
39
(GHC version 7.0.1.20101203 for x86_64_unknown_linux)
Please report this as a GHC bug:
http://www.haskell.org/ghc/reportabug
SalviaDerivationGateway_p: internal error: Invalid object in isRetainer():
812
(GHC version 7.0.1.20101203 for x86_64_unknown_linux)
Please report this as a GHC bug:
http://www.haskell.org/ghc/reportabug
SalviaDerivationGateway_p: internal error: scavenge_mark_stack:
unimplemented/strange closure type 71648289 @ 0x7f74206961a8
(GHC version 7.0.1.20101203 for x86_64_unknown_linux)
Please report this as a GHC bug:
http://www.haskell.org/ghc/reportabug
}}}
I compiled with -O3 -funbox-strict-fields -prof and tried with and without
-threaded but that doesn't make a difference.
Is there anything I could do to help to diagnose the problem? Our test
program from #4362 runs fine with retainer profiling. If it is of any
help I can install the patched GHC 7 branch and our application onto our
test server and give to access to it.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4820>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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