Large Block Devices not supported in 64 bit

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Hello.

I run kernel 2.6.17.11 vanilla in 64 bit mode with 32 bit emulation.

Unfortunately there is no support for file-systems bigger than 2 TB in 64 bit mode.

erikm in #kernelnewbies told me to report it here:

<Dragony> statfs("/MD2", 0xff8deca4)              = -1 EOVERFLOW (Value too large for defined data type)
<erikm> Dragony: prolly no LBD support
<erikm> Dragony: ah wait, you probably do have support for large block devices, but the 32 bit portability syscall forgot to support it
<erikm> Dragony: see block/Kconfig
<Dragony> #XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64
<Dragony> #for instance.
<Dragony> config LBD
<Dragony>         bool "Support for Large Block Devices"
<Dragony>         depends on X86 || (MIPS && 32BIT) || PPC32 || (S390 && !64BIT) || SUPERH || UML
<Dragony> yes but this option only appears in 32 bit mode not in 64 bit mode
<erikm> Dragony: hence my comment
<Dragony> actually /MD2 is mounted and i can access the files, but not any stats
<erikm> Dragony: it *IS* supported, but not properly backported to the 32 bit compatibility layer
<Dragony> hmm what can i do?
<erikm> Dragony: post to lkml

Can someone help me?

Regards,
Chris
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