[GHC] #7789: GHCI core dumps when used with VTY

[GHC]

#7789: GHCI core dumps when used with VTY
-----------------------------+----------------------------------------------
Reporter:  timthelion        |          Owner:                  
    Type:  bug               |         Status:  new             
Priority:  normal            |      Component:  GHCi            
 Version:  7.4.2-rc1         |       Keywords:  core dump       
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
 Failure:  GHCi crash        |      Blockedby:                  
Blocking:                    |        Related:                  
-----------------------------+----------------------------------------------
 Load the attached script in ghci:

 {{{
 $ghci ghci-coredumper.hs

 }}}

 (you need the vty-menu package from hackage) and type die


 {{{
 >die

 }}}

 You may see a menu with a set of ten numbers.  If you do press enter
 repeatedly. Eventually it will core dump(at least it does for me)
 Unfortunately I have been unable to collect this core dump, but here is
 the output at least:


 {{{

 7f7ad1fc4000-7f7ad1fc5000 rwxp 000fd000 00:10 2839271
 /usr/lib/libm-2.17.so
 7f7ad1fc5000-7f7ad2032000 r-xp 00000000 00:10 3028085
 /usr/lib/libgmp.so.10.1.1
 7f7ad2032000-7f7ad2231000 ---p 0006d000 00:10 3028085
 /usr/lib/libgmp.so.10.1.1
 7f7ad2231000-7f7ad2232000 r-xp 0006c000 00:10 3028085
 /usr/lib/libgmp.so.10.1.1
 7f7ad2232000-7f7ad223b000 rwxp 0006d000 00:10 3028085
 /usr/lib/libgmp.so.10.1.1
 7f7ad223b000-7f7ad2252000 r-xp 00000000 00:10 2839310
 /usr/lib/libpthread-2.17.so
 7f7ad2252000-7f7ad2451000 ---p 00017000 00:10 2839310
 /usr/lib/libpthread-2.17.so
 7f7ad2451000-7f7ad2452000 r-xp 00016000 00:10 2839310
 /usr/lib/libpthread-2.17.so
 7f7ad2452000-7f7ad2453000 rwxp 00017000 00:10 2839310
 /usr/lib/libpthread-2.17.so
 7f7ad2453000-7f7ad2457000 rwxp 00000000 00:00 0
 7f7ad2457000-7f7ad245a000 r-xp 00000000 00:10 2839316
 /usr/lib/libdl-2.17.so
 7f7ad245a000-7f7ad2659000 ---p 00003000 00:10 2839316
 /usr/lib/libdl-2.17.so
 7f7ad2659000-7f7ad265a000 r-xp 00002000 00:10 2839316
 /usr/lib/libdl-2.17.so
 7f7ad265a000-7f7ad265b000 rwxp 00003000 00:10 2839316
 /usr/lib/libdl-2.17.so
 7f7ad265b000-7f7ad265d000 r-xp 00000000 00:10 2839280
 /usr/lib/libutil-2.17.so
 7f7ad265d000-7f7ad285c000 ---p 00002000 00:10 2839280
 /usr/lib/libutil-2.17.so
 7f7ad285c000-7f7ad285d000 r-xp 00001000 00:10 2839280
 /usr/lib/libutil-2.17.so
 7f7ad285d000-7f7ad285e000 rwxp 00002000 00:10 2839280
 /usr/lib/libutil-2.17.so
 7f7ad285e000-7f7ad2865000 r-xp 00000000 00:10 2839273
 /usr/lib/librt-2.17.so
 7f7ad2865000-7f7ad2a64000 ---p 00007000 00:10 2839273
 /usr/lib/librt-2.17.so
 7f7ad2a64000-7f7ad2a65000 r-xp 00006000 00:10 2839273
 /usr/lib/librt-2.17.so
 7f7ad2a65000-7f7ad2a66000 rwxp 00007000 00:10 2839273
 /usr/lib/librt-2.17.so
 7f7ad2a66000-7f7ad2ac0000 r-xp 00000000 00:10 3403181
 /usr/lib/libncursesw.so.5.9
 7f7ad2ac0000-7f7ad2cbf000 ---p 0005a000 00:10 3403181
 /usr/lib/libncursesw.so.5.9
 7f7ad2cbf000-7f7ad2cc3000 r-xp 00059000 00:10 3403181
 /usr/lib/libncursesw.so.5.9
 7f7ad2cc3000-7f7ad2cc5000 rwxp 0005d000 00:10 3403181
 /usr/lib/libncursesw.so.5.9
 7f7ad2cc5000-7f7ad2ce6000 r-xp 00000000 00:10 2839312
 /usr/lib/ld-2.17.so
 7f7ad2e39000-7f7ad2eba000 rwxp 00000000 00:00 0
 7f7ad2ee4000-7f7ad2ee6000 rwxp 00000000 00:00 0
 7f7ad2ee6000-7f7ad2ee7000 r-xp 00021000 00:10 2839312
 /usr/lib/ld-2.17.so
 7f7ad2ee7000-7f7ad2ee8000 rwxp 00022000 00:10 2839312
 /usr/lib/ld-2.17.so
 7f7ad2ee8000-7f7ad2ee9000 rwxp 00000000 00:00 0
 7fff979b8000-7fff979d9000 rwxp 00000000 00:00 0
 [stack]
 7fff979fe000-7fff97a00000 r-xp 00000000 00:00 0
 [vdso]
 ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0
 [vsyscall]
 Neúspěšně ukončen (SIGABRT) (core dumped [obraz paměti uložen])

 }}}

 Sometimes it dumps immediately, sometimes it takes a while.

 Sometimes the errors are different:


 {{{
 *** Exception: user error (Terminal does not define required capability
 "cup")
 *Main>

 }}}


 {{{
 *** Exception: user error (Terminal does not define required capability
 "setab")
 *Main>
 <stdin>: hWaitForInput: end of file

 }}}

 But mostly it just core dumps.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7789>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler