Messages in this thread | | | Date | Thu, 23 Jan 2014 09:59:06 +0400 | From | Cyrill Gorcunov <> | Subject | Re: [Bug 67651] Bisected: Lots of fragmented mmaps cause gimp to fail in 3.12 after exceeding vm_max_map_count |
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On Wed, Jan 22, 2014 at 02:45:53PM -0800, Andy Lutomirski wrote: > > > > Thus when user space application track memory changes now it can detect if > > vma area is renewed. > > Presumably some path is failing to set VM_SOFTDIRTY, thus preventing mms > from being merged. > > That being said, this could cause vma blowups for programs that are > actually using this thing.
Hi Andy, indeed, this could happen. The easiest way is to ignore softdirty bit when we're trying to merge vmas and set it one new merged. I think this should be correct. Once I finish I'll send the patch.
Cyrill
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