[bug #17346] GNU mach can't handle 4GB memory

[Samuel Thibault]

URL:
  <http://savannah.gnu.org/bugs/?func=detailitem&item_id=17346>

                 Summary: GNU mach can't handle 4GB memory
                 Project: The GNU Hurd
            Submitted by: sthibaul
            Submitted on: lundi 07.08.2006 à 03:32
                Category: GNU Mach
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Hardware Support
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Reproducibility: Every Time
              Size (loc): None
         Planned Release: None
                  Effort: 0.00

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Details:

Or more precisely, it roughly takes the memory size modulo 4GB. That's
because in i386/i386at/model_dep.c, memory size computing is done with ints,
i.e. 32bit values, hence the modulo 2^32. An quick fix would be to truncate
boot_info's memory size reporting to 1GB, i.e. boot_info.mem_upper to
(2^32-1MB)/0x400.







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