RESOLVED FIXED 118535
Some Java plugin instances can deadlock with the WebProcess on NPP_Destroy 
https://bugs.webkit.org/show_bug.cgi?id=118535
Summary Some Java plugin instances can deadlock with the WebProcess on NPP_Destroy
Brady Eidson
Reported 2013-07-10 11:07:07 PDT
Some Java plugin instances can deadlock with the WebProcess on NPP_Destroy The newest official Java plugin does some of its NPP_Destroy cleanup work on a background thread. This includes calling NP_Deallocate on an NPObject on that background thread. Doing that is unsupported, has undefined behavior, and as of http://trac.webkit.org/changeset/139514 will cause a deadlock. Since we can't fix the Java plugin and since this is during plugin teardown anyways, we can marshall the destruction back to the main thread. In radar as <rdar://problem/14286390>
Attachments
Patch v1 (1.79 KB, patch)
2013-07-10 11:23 PDT, Brady Eidson 		ap: review+
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Brady Eidson
Comment 1 2013-07-10 11:23:04 PDT
Created attachment 206400 [details] Patch v1
Alexey Proskuryakov
Comment 2 2013-07-10 11:25:22 PDT
Comment on attachment 206400 [details] Patch v1 Perhaps add some pointers to why we have such a hack, and only in one place?
Brady Eidson
Comment 3 2013-07-10 11:35:18 PDT
http://trac.webkit.org/changeset/152539
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