[Webkit-unassigned] [Bug 84517] New: ASSERT(revalidatingResource->inCache()) failure in MemoryCache::revalidationSucceeded()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=84517

           Summary: ASSERT(revalidatingResource->inCache()) failure in
                    MemoryCache::revalidationSucceeded()
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Page Loading
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: wangxianzhu at chromium.org
                CC: abarth at webkit.org, japhet at chromium.org


Encountered this on chromium-android by repeatedly openning new tabs, closing tabs, reloading tabs, switching between tabs, etc.

The reason seems:
MemoryCache::clear() might be called on low memory condition during a resource revalidation, causing the resources to be evicted, then some ASSERTs in MemoryCache::revalidationSucceeded() may fail:

ASSERT(revalidatingResource->inCache());
ASSERT(!m_resources.get(resource->url()));  // There might be another revalidating or revalidated resource after the original revalidation is evicted.

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