Bug 77994 - REGRESSION(r106935): "Crashes runMultiThread webkit_unit_test" (Requested by tonyg-cr on #webkit).
Summary: REGRESSION(r106935): "Crashes runMultiThread webkit_unit_test" (Requested by ...
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: WebKit Review Bot
Depends on:
Blocks: 77555
  Show dependency treegraph
Reported: 2012-02-07 08:37 PST by WebKit Review Bot
Modified: 2012-02-07 08:46 PST (History)
3 users (show)

See Also:

ROLLOUT of r106935 (8.00 KB, patch)
2012-02-07 08:38 PST, WebKit Review Bot
no flags Details | Formatted Diff | Diff

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Description WebKit Review Bot 2012-02-07 08:37:50 PST
http://trac.webkit.org/changeset/106935 broke the build:
"Crashes runMultiThread webkit_unit_test" (Requested by tonyg-cr on #webkit).

This is an automatic bug report generated by the sheriff-bot. If this bug
report was created because of a flaky test, please file a bug for the flaky
test (if we don't already have one on file) and dup this bug against that bug
so that we can track how often these flaky tests case pain.

"Only you can prevent forest fires." -- Smokey the Bear
Comment 1 WebKit Review Bot 2012-02-07 08:38:24 PST
Created attachment 125848 [details]
ROLLOUT of r106935

Any committer can land this patch automatically by marking it commit-queue+.  The commit-queue will build and test the patch before landing to ensure that the rollout will be successful.  This process takes approximately 15 minutes.

If you would like to land the rollout faster, you can use the following command:

  webkit-patch land-attachment ATTACHMENT_ID

where ATTACHMENT_ID is the ID of this attachment.
Comment 2 Tony Gentilcore 2012-02-07 08:40:14 PST
Here's an example of the crash (no stack):
Comment 3 Tony Gentilcore 2012-02-07 08:43:38 PST
Comment on attachment 125848 [details]
ROLLOUT of r106935

Clearing flags on attachment: 125848

Committed r106951: <http://trac.webkit.org/changeset/106951>
Comment 4 Tony Gentilcore 2012-02-07 08:43:44 PST
All reviewed patches have been landed.  Closing bug.
Comment 5 Tony Gentilcore 2012-02-07 08:46:27 PST
Ah, here's one with a stack:

	WTF::OwnPtr<>::get() [0x4657f4]
	WebCore::CCLayerImpl::renderSurface() [0x465688]
	WebCore::CCThreadProxy::resetDamageTrackerOnImplThread() [0x10e7187]
	WebCore::CCThreadTask0<>::performTask() [0x10eb16c]
	WebKit::CCThreadTaskAdapter::run() [0x6ce58b]
	base::internal::RunnableAdapter<>::Run() [0x1cee373]
	base::internal::InvokeHelper<>::MakeItSo() [0x1cee230]
	base::internal::Invoker<>::Run() [0x1cee04d]
	base::Callback<>::Run() [0xd8e663]
	MessageLoop::RunTask() [0x1e4a120]
	MessageLoop::DeferOrRunPendingTask() [0x1e4a237]
	MessageLoop::DoWork() [0x1e4aa59]
	base::MessagePumpDefault::Run() [0x1e529d0]
	MessageLoop::RunInternal() [0x1e49ddb]
	MessageLoop::RunHandler() [0x1e49c8e]
	MessageLoop::Run() [0x1e495c3]
	base::Thread::Run() [0x1e8f812]
	base::Thread::ThreadMain() [0x1e8f992]
	base::(anonymous namespace)::ThreadFunc() [0x1e8e9cf]
	start_thread [0x7f9a8c8e69ca]