On August 17, 2016 6:30:06 AM EDT, Catalin Marinas <[email protected]> wrote: >On Tue, Aug 16, 2016 at 02:32:29PM -0400, Christopher Covington wrote: >> Some userspace applications need to know the maximum virtual address >they can >> use (TASK_SIZE). > >Just curious, what are the cases needing TASK_SIZE in user space?
Checkpoint/Restore In Userspace and the Mozilla Javascript Engine https://bugzilla.mozilla.org/show_bug.cgi?id=1143022 are the specific cases I've run into. I've heard LuaJIT might have a similar situation. In general I think making allocations from the top down is a shortcut for finding a large unused region of memory. Thanks, Cov -- Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project. Sent from my Snapdragon powered Android device with K-9 Mail. Please excuse my brevity.
