[pypy-dev] Mysterious IndexError in service running with PyPy

hubo hubo at jiedaibao.com
Tue Dec 19 05:16:28 EST 2017


Thanks, I will try 5.9 and wait for the result

2017-12-19 

hubo 



发件人:Armin Rigo <armin.rigo at gmail.com>
发送时间:2017-12-18 17:44
主题:Re: [pypy-dev] Mysterious IndexError in service running with PyPy
收件人:"hubo"<hubo at jiedaibao.com>
抄送:"PyPy Developer Mailing List"<pypy-dev at python.org>

Hi Hubo, 

On 18 December 2017 at 08:58, hubo <hubo at jiedaibao.com> wrote: 
> The services are running with PyPy 5.3.0. I've upgraded a few of them to 
> 5.9, but it will take a long time to validate whether this still happens. 

The root cause might be some issue with the JIT: if there is a bug 
there, then we can get this kind of nonsense-looking result.  It is 
however completely impossible to know what the issue is just by 
looking at the Python code.  Usually it takes a lot of efforts inside 
gdb to figure these bugs out. 

The good news is that these issues are extremely rare: much less than 
one per release, in average.  It's possible that we fixed a JIT issue 
between PyPy 5.3 and PyPy 5.9 and that this issue caused the 
misbehavior you're observing.  All I can suggest is to continue trying 
with PyPy 5.9. 


A bientôt, 

Armin. 
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