#4251: GHC hangs during Network.HTTP.simpleHTTP on Windows XP SP3, Windows 7
-------------------------+--------------------------------------------------
Reporter: balta2ar | Owner:
Type: bug | Status: new
Priority: normal | Component: libraries (other)
Version: 6.12.3 | Keywords: hang, simplehttp
Testcase: | Blockedby:
Os: Windows | Blocking:
Architecture: x86 | Failure: Incorrect result at runtime
-------------------------+--------------------------------------------------
After executing:
{{{simpleHTTP (getRequest
"http://maps.google.com/maps/api/geocode/json?address=London&sensor=false";)}}}
GHC hangs and consumes all the CPU resources (CPU load rises to 100%).
Sample log:
{{{
C:\>ghci -v -dcore-lint
GHCi, version 6.12.3: http://www.haskell.org/ghc/ :? for help
Glasgow Haskell Compiler, Version 6.12.3, for Haskell 98, stage 2 booted
by GHC version 6.10.4
Using binary package database:
C:\PROGRA~1\HASKEL~1\201020~1.0\lib\package.conf.d\package.cache
Using binary package database: C:\Documents and Settings\User\Application
Data\ghc\i386-mingw32-6.12.3\package.conf.d\package.cache
hiding package regex-posix-0.94.2 to avoid conflict with later version
regex-posix-0.94.4
hiding package base-3.0.3.2 to avoid conflict with later version
base-4.2.0.2
wired-in package ghc-prim mapped to ghc-
prim-0.2.0.0-2feb0cb38f65a4827135ada88c34f3ef
wired-in package integer-gmp mapped to integer-
gmp-0.2.0.1-72436e28c79d056c87cc0d2d2f9f3773
wired-in package base mapped to
base-4.2.0.2-0d1804f62045e52b2e806996d84f5318
wired-in package rts mapped to builtin_rts
wired-in package haskell98 mapped to
haskell98-1.0.1.1-b5196101fd7a8c42a8d53bd8033d6765
wired-in package template-haskell mapped to template-
haskell-2.4.0.1-401621dedd4a5f07bfd8630247358bf5
wired-in package dph-seq mapped to dph-
seq-0.4.0-be069f0bb710922a6ddd4ed2b91e3a6c
wired-in package dph-par mapped to dph-
par-0.4.0-b31a0ce10b7c92126978fcc929077ad6
Hsc static flags: -static
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
Prelude> :module +Network.HTTP
Prelude Network.HTTP> simpleHTTP (getRequest
"http://maps.google.com/maps/api/geocode/json?address=London&sensor=false";)
*** Parser:
*** Desugar:
*** Simplify:
*** CorePrep:
*** ByteCodeGen:
Loading package syb-0.1.0.2 ... linking ... done.
Loading package base-3.0.3.2 ... linking ... done.
Loading package parsec-2.1.0.1 ... linking ... done.
Loading package network-2.2.1.7 ... linking ... done.
Loading package mtl-1.1.0.2 ... linking ... done.
Loading package bytestring-0.9.1.7 ... linking ... done.
Loading package Win32-2.2.0.2 ... linking ... done.
Loading package array-0.3.0.1 ... linking ... done.
Loading package old-locale-1.0.0.2 ... linking ... done.
Loading package old-time-1.0.0.5 ... linking ... done.
Loading package HTTP-4000.0.9 ... linking ... done.
*GHC hangs here*
}}}
I'm using Windows XP SP3, Haskell Platform 2010.2.0.0. No firewall or
proxy restrictions.
The bug was also reported here:
[http://groups.google.com/group/haskell-
cafe/browse_thread/thread/4e4a7e5eb92d1b81/48300428c7c10a57?lnk=gst&q=HTTP+package#48300428c7c10a57]
There's a file in attachment with Wireshark's capture during the sample
execution.
Note the same sample on ghc 6.12.1, haskell-network 2.2.1.7-3 on ArchLinux
works just fine.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4251>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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