8005818: Shark: fix OSR for non-empty incoming stack [Was: Re: RFR: Fix OSR in Shark for non-empty incoming stack]

[Christian Thalinger]

8005818: Shark: fix OSR for non-empty incoming stack

On Dec 6, 2012, at 12:30 PM, Roman Kennke <rkennke at redhat.com> wrote:

> This patch disables on-stack-replacement in Shark when the incoming
> stack-depth is > 0. (This caused a segmentation fault when running
> SpecJVM.)
> 
> http://cr.openjdk.java.net/~rkennke/shark-osr/webrev.00/
> 
> I tried to figure out what to do in that case for a while, until I
> looked at opto which simply bails out, so I decided to do the same. Is
> there anything better that could be done without huge efforts (it seems
> to happen very rarely after all)?
> 
> Ok to go in?
> 
> (I have a bunch of patches coming up for Shark, I was undecided if I
> should post them as one big or several smaller patches, and then found
> that having several unrelated things interleaved in one patch makes it
> really difficult to understand what it does.)
> 
> Regards,
> Roman
> 
>