Frederick Cheung schrieb:
> Hello,
> 
> I've found the following (extracted & abstacted from part of rails) 
> causes a crash on the latest ruby (compiled a few minutes ago)
> 
> counter = 2
> while true
>   counter -= 1
>   next if counter != 0
>   break
> end
> 
> This outputs
> 
> crash.rb:5: -- control frame ----------
> c:0003 p:0026 s:0007 b:0006 l:000005 d:000005 TOP    crash.rb:5
> c:0002 p:---- s:0003 b:0003 l:000002 d:000002 FINISH :inherited
> c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------
> ---------------------------
> -- backtrace of native function call (Use addr2line) --
> 0xdae76
> 0x1aca5
> 0x1ad4b
> 0xd8dac
> 0xd950c
> 0xd97d9
> 0x1e1c4
> 0x22d3a
> 0x198f
> 0x18f6
> -------------------------------------------------------
> [BUG] Stack consistency error (sp: 7, bp: 6)
> ruby 1.9.0 (2007-12-24) [i686-darwin9.1.0]
> 
> I've no idea why this happens, hopefully someone who understands ruby 
> better than I do can pick this one apart.
> 
> Fred
> 
> 

Same occurs with the actual snapshot from yesterday evening (Windows, MinGW/MSYS)...

x.rb:5: -- control frame ----------
c:0003 p:0026 s:0007 b:0006 l:000005 d:000005 TOP    x.rb:5
c:0002 p:---- s:0003 b:0003 l:000002 d:000002 FINISH :inherited
c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------
---------------------------
[BUG] Stack consistency error (sp: 7, bp: 6)
ruby 1.9.0 (2007-12-24) [i386-mingw32]


abnormal program termination


Wolfgang Nádasi-Donner