[Webkit-unassigned] [Bug 53352] Heavy external fragmentation in FixedVMPoolAllocator can lead to a CRASH().

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=53352


Gavin Barraclough <barraclough at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |FIXED




--- Comment #8 from Gavin Barraclough <barraclough at apple.com>  2011-01-31 11:19:07 PST ---
Actually, there are valid options, so I should leave this decision to the Linux folks.  I'm going to roll us back to the state prior to 75709 (see bug #42756), which is to say that on x86-64 we require 1GB of VM to be allocated up front, so we will not necessarily be able to run on !swap !overcommit configurations.

Someone with some skin in the game on Linux can choose between:
(1) Requiring 1GB VM.  This will lead to poor support for !swap !overcommit configurations.
(2) Dropping to ~32MB VM for all Linux/x86-64 configurations - this will mean we are unable to run crazily large test cases.
(3) Provide a compile time option to select between the above.
(4) Provide a runtime option to select between the above.

Relanded in r77145.

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