[Xen-ia64-devel] Nats not correctly saved/restored in context

[Tristan Gingold <tgingold@xxxxxxx>]

Hi,

it may seem obvious struct cpu_user_regs is carefully read, but NaT bits
are not correctly saved and restored.  Here is a small program (based on
ia64regcheck) which checks this.

This program works well on bare linux but fails in dom0.  I have not run it
in domU or domVti.
Run as many processes as you have vcpus.

I plan to reorder fields in struct cpu_user_regs to fix the bug (and to
make eml_unat more usable).

Tristan.

Attachment: Makefile
Description: Text document

Attachment: checker.c
Description: Text Data

Attachment: regcheck.s
Description: Text document

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