RFR: 8168914: Crash in ClassLoaderData/JNIHandleBlock::oops_do during concurrent marking (original) (raw)

Erik Helin erik.helin at oracle.com
Mon Feb 20 14:06:35 UTC 2017


On 02/16/2017 07:51 PM, Kim Barrett wrote:

src/share/vm/classfile/classLoaderData.hpp 179 // Only one thread can add a time, guarded by the Metaspacelock.

Only one thread at a time time can add?

Yes. See ClassLoaderData::add_handle, all the threads synchronize using ClassLoaderData::metaspace_lock().

Thanks, Erik

On Feb 16, 2017, at 9:13 AM, Erik Helin <erik.helin at oracle.com> wrote:

On 02/15/2017 10:08 PM, coleen.phillimore at oracle.com wrote: Hi Erik, Hey Coleen, thanks for reviewing! Please see new webrevs at: - incremental: http://cr.openjdk.java.net/~ehelin/8168914/01-02/ - full: http://cr.openjdk.java.net/~ehelin/8168914/02/



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