[Bug 39885] New: Cannot allocate more than 32gb of memory

https://bugs.winehq.org/show_bug.cgi?id=39885

Bug ID: 39885
           Summary: Cannot allocate more than 32gb of memory
           Product: Wine
           Version: 1.9.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 53258
  --> https://bugs.winehq.org/attachment.cgi?id=53258
wine debug

I am having issues mallocing more than 32GB of memory running RAM intensive
Windows applications using Wine on an Ubuntu amazon EC2 cloud with 128 GB of
RAM. When I run the c++ code
http://stackoverflow.com/questions/34516616/wine-cant-use-more-than-32gb-of-...
in linux it works.

If I run the .exe that does the same thing I can only allocate up to 32GB. I
tried Wine 1.6, 1.7 and 1.9. I am using the 64 bit version as well.

I talked in the IRC chat #winehq and they told me to run the code with
WINEDEBUG=+heap,+virtual,+tid  flags.

He pointed out this line might be useful to look at in my logs:

0024:warn:heap:allocate_large_block Could not allocate block for 800000000
bytes

and told me to submit a bug report. The log is attached.