On Thu, Feb 05, 2009 at 02:45:21PM -0500, Aaron Lav wrote:
>
>
(apologies for the broken threading. I don't seem to be
getting email from this list: I've tried resubscribing.)
> Have you tried moving things around, like creating the arrays differently ?
For example: a = list(xrange(count)) instead of the list comprehension ?
I've tried list(xrange(count)) and range(count), and those don't fail.
a = []
for i in range(count):
a.append(i)
b = []
for i in range(count):
b.append(i)
does fail.
> Did you try a more recent version of Python ?
I've just tried locally building 2.6.1 on my gutsy laptop, and
it still fails with that.
> Have you tried this on 32-bit ?
I've built an i386-arch KVM VM, and it doesn't crash there. (It
does crash on a very similar x86-64 VM.)
> When you don't actually use the arrays after creating them, how are you
getting the crash ? inside the assert loops ?
Yes. (Some print statements would have made that clearer.)
Other ideas I'm planning:
* try a python --with-pydebug build
* stub out parts of jcc initialization. (Obviously this could just move the
bug around.)
* fiddle with the JVM's GC parameters
* see if setting a hardware watchpoint earlier catches where the data is being
changed, or if it seems to be being put in the list wrong.
Aaron Lav (a...@pobox.com)
