[Webkit-unassigned] [Bug 245222] New: REGRESSION(250548 at main): Early WebProcess exit on 32-bit platforms since memory limit is zero

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=245222

            Bug ID: 245222
           Summary: REGRESSION(250548 at main): Early WebProcess exit on
                    32-bit platforms since memory limit is zero
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: olivier.blin at softathome.com
                CC: cdumez at apple.com, cgarcia at igalia.com, darin at apple.com,
                    magomez at igalia.com, mcatanzaro at gnome.org,
                    nham at apple.com, zdobersek at igalia.com

In 250548 at main, the memory limit in MemoryPressureHandler is set to a least 7 GB for active process.
This value is stored in a size_t variable, but this is limited to 4 GB on 32-bit platforms.

The memory limit is truncated down to 0, which triggers a WebProcess exit after the first MemoryPressure check.

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