Summary: | [X11] Plugin process crashes in NetscapePlugin::platformPostInitialize() | ||||||
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Product: | WebKit | Reporter: | Michael Catanzaro <mcatanzaro> | ||||
Component: | WebKitGTK | Assignee: | Nobody <webkit-unassigned> | ||||
Status: | RESOLVED FIXED | ||||||
Severity: | Critical | CC: | cgarcia, gustavo, pnormand | ||||
Priority: | P2 | ||||||
Version: | 528+ (Nightly build) | ||||||
Hardware: | PC | ||||||
OS: | Linux | ||||||
Attachments: |
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Description
Michael Catanzaro
2014-10-04 18:14:39 PDT
Probably the same as this crash: https://retrace.fedoraproject.org/faf/reports/444412/ How can I try to reproduce it? Does it happen for any website having flash? vrutkovs: mcatanzaro: sorry, no info, it just happened during the day of F21 usage mcatanzaro: vrutkovs: Alas. OK, thanks. vrutkovs: my workstation has been doing lots of background tasks recently so it might be one of these race condition bugs mcatanzaro: Well there's over 900 reports so it's not just you. I'll ask in the downstream bug in case someone else has noticed a pattern. I managed to reproduce this, or at least a similar crash, because here it crashes in NetscapePlugin::initialize, like the bt in comment #2. The thing is that flash in crashing in NPP_GetValue when called with NPPVpluginCancelSrcStream. #0 0x00007f6e52ecb873 in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so #1 0x00007f6e5306ed1c in ?? () from /usr/lib/mozilla/plugins/flash-mozilla.so #2 0x0000000000b2a2c4 in WebKit::NetscapePlugin::initialize(WebKit::Plugin::Parameters const&) () #3 0x0000000000b015df in WebKit::PluginControllerProxy::initialize(WebKit::PluginCreationParameters const&) () #4 0x0000000000b0569f in WebKit::WebProcessConnection::createPluginInternal(WebKit::PluginCreationParameters const&, bool&, bool&, unsigned int&) () Only adobe can know why, though, but the thing is that it only crashes for windowed plugins, adding wmode=opaque as parameter or not calling NPP_GetValue and always loading the source URL, fixes the crash and the flash thing works perfectly. So, the only thing I can think of is adding a plugin quirk to handle this specific case. Created attachment 239532 [details]
Patch
Committed r174507: <http://trac.webkit.org/changeset/174507> |