Re: CVS commit: src/sys/arch/xen/xen

[yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)]

hi,

> Module Name:  src
> Committed By: bouyer
> Date:         Sat Sep 20 20:36:09 UTC 2008
> 
> Modified Files:
>       src/sys/arch/xen/xen: privcmd.c
> 
> Log Message:
> Fix IOCTL_PRIVCMD_MMAPBATCH: don't blindly map requested pages read/write
> but use the map's protection bits, as the hypervisor may refuse read/write
> mappings for some entries. Now suspend/resume of domUs should work
> from a NetBSD dom0, provided that the domU's kernel supports it.
> 
> From Jean-Yves Migeon.
> 
> 
> To generate a diff of this commit:
> cvs rdiff -r1.29 -r1.30 src/sys/arch/xen/xen/privcmd.c
> 
> Please note that diffs are not public domain; they are subject to the
> copyright notices on the relevant files.

what prevents the 'entry' pointer from getting invalid
while you release the vm_map lock?

YAMAMOTO Takashi