[Wine] wine on AMD64 in an IA32 chroot environment

[Christoph Fassbach]

Hi,

I have got a problem with wine running on an AMD64
64-Bit linux running in an IA32 chroot environment.

I used an extra-partition for the IA32-chroot environment.

If I boot into this 32-Bit Linux directly, wine runs Ultima Online quite 
nice.

But if I boot into the 64-Bit Linux and then chroot to the 32-Bit 
environment,
Ultima Online exits with an error and reports that there is not enough 
memory.

Well, I use these lines in my fstab to setup the chroot, while /mnt/sda7 
holds the extra partition:

#x86 32 chroot
/home           /mnt/sda7/home  none    bind            0       0
/tmp            /mnt/sda7/tmp   none    bind            0       0
/dev            /mnt/sda7/dev   none    rbind            0       0
/mnt            /mnt/sda7/mnt   none    bind            0       0
/sys            /mnt/sda7/sys   none    bind            0       0
/proc           /mnt/sda7/proc  none    bind            0       0
/var/tmp        /mnt/sda7/var/tmp  none    bind                 0       0

While reading through the strace report, I found an node, that wine 
opens /proc/meminfo .
Running in AMD64 mode, it looks like

MemTotal:      1026384 kB
MemFree:        699820 kB
Buffers:          9696 kB
Cached:         175928 kB
SwapCached:          0 kB
Active:         179072 kB
Inactive:       106668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      1026384 kB
LowFree:        699820 kB
SwapTotal:     7341664 kB
SwapFree:      7341664 kB
Dirty:               0 kB
Writeback:           0 kB
Mapped:         150184 kB
Slab:            18604 kB
CommitLimit:   7854856 kB
Committed_AS:   208572 kB
PageTables:       4452 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    299520 kB
VmallocChunk: 34359438331 kB

On an IA32 kernel, it looks like:

MemTotal:      1036104 kB
MemFree:        494268 kB
Buffers:         23736 kB
Cached:         414612 kB
SwapCached:          0 kB
Active:         267004 kB
Inactive:       242136 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       905096 kB
LowFree:        494016 kB
SwapTotal:     2000084 kB
SwapFree:      2000084 kB
Dirty:              60 kB
Writeback:           0 kB
Mapped:         117284 kB
Slab:            20232 kB
Committed_AS:   156416 kB
PageTables:       1680 kB
VmallocTotal:   114680 kB
VmallocUsed:     23568 kB
VmallocChunk:    88052 kB

May this difference cause wine to report a wrong memory size to Ultima 
Online?
Does anybody know a work-around for my problem?
To whom I must talk about this?
I suppose I need some help, please.

Greetings,

Christoph