new HW RNG freezes kernels > 2.6.17 at startup with Xeon 5130

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Hi,

it seems to me that the new hardware random number generator (HW RNG) freezes my hardware:

The CPU is Intel Xeon 5130 (Intel Core microarchitecture) [1] installed on Intel Server Board S5000VSA.

Linux is run in 64bit mode and the distribution is Debian Etch (but that should not matter).

If I take Debian's kernel 2.6.17 it boots :-)
If I take vanilla  kernel 2.6.17.9 it boots :-)
If I take Debian's kernel 2.6.18 it does not boot.
If I take vanilla  kernel 2.6.18.6 it does not boot.
If I take vanilla  kernel 2.6.19.1 it does not boot.
If I take vanilla  kernel 2.6.20-rc4 it does not boot.

There was no error thus it was not that easy to find out the problem. Comparing the boot logs of 2.6.17 and 2.6.18 the freeze ocurred before initializing the hardware random number generator. Thus I recompiled the vanilla Kernel 2.6.18.6 without support of the new HW RNG and it boots. So, I renamed the directory /kernel/drivers/char/hw_random and the Debian kernel 2.6.18 does also boot.

I have not testet the kernel > 2.6.18 but I guess that they will also boot without the new NW RNG.

Do you know the problem? Can I provide you more information?

TIA  Martin

[1]http://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors#Woodcrest
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