review request 7140866: assert(covered) failed: Card for end of new region not committed
ysr1729 at gmail.com
Tue Feb 14 16:30:17 PST 2012
Looks good to me.
-- ramki (openjdk: ysr)
On Mon, Feb 13, 2012 at 2:09 PM, Dean Long <dean.long at oracle.com> wrote:
> The problem happens when trying to use a shared archive. If for some
> reason mapping the shared file fails,
> we call
> _rs->resize_covered_region(**MemRegion(shared_bottom, shared_bottom));
> to undo the earlier call to
> Unfortunately the resize code is not prepared to deal with a zero-sized
> region so an assert fails.
> Rather than touch the resize code, this fix changes the caller to only
> call resize_covered_region()
> once after the shared file is mapped.
> Tested fix on a particular linux arm platform where the mmap fails 100% of
> the time due to a different issue.
> Ran -Xshare:dump first then a few GC tests.
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