* How can I map a foreign mfn when I'm in a workqueue?
@ 2009-10-31 13:43 zhefu jiang
2009-11-02 20:50 ` Jeremy Fitzhardinge
0 siblings, 1 reply; 2+ messages in thread
From: zhefu jiang @ 2009-10-31 13:43 UTC (permalink / raw)
To: xen-devel
[-- Attachment #1.1: Type: text/plain, Size: 351 bytes --]
I use alloc_vm_area/direct_kernel_remap_pfn_range/unmap_vm_area to map a
foreign pfn into dom0's kernel address space, all goes well with the
exception that when I use them in a workqueue, dom0's kernel fails to map
the page and gives me these error messages:
Unable to handle kernel paging request at xxxxxx...
Does anyone have some idea about it?
[-- Attachment #1.2: Type: text/html, Size: 423 bytes --]
[-- Attachment #2: Type: text/plain, Size: 138 bytes --]
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: How can I map a foreign mfn when I'm in a workqueue?
2009-10-31 13:43 How can I map a foreign mfn when I'm in a workqueue? zhefu jiang
@ 2009-11-02 20:50 ` Jeremy Fitzhardinge
0 siblings, 0 replies; 2+ messages in thread
From: Jeremy Fitzhardinge @ 2009-11-02 20:50 UTC (permalink / raw)
To: zhefu jiang; +Cc: xen-devel
On 10/31/09 06:43, zhefu jiang wrote:
> I use alloc_vm_area/direct_kernel_remap_pfn_range/unmap_vm_area to map
> a foreign pfn into dom0's kernel address space, all goes well with the
> exception that when I use them in a workqueue, dom0's kernel fails to
> map the page and gives me these error messages:
>
> Unable to handle kernel paging request at xxxxxx...
>
> Does anyone have some idea about it?
You haven't posted enough detail for anyone to be able to help you.
J
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2009-11-02 20:50 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-10-31 13:43 How can I map a foreign mfn when I'm in a workqueue? zhefu jiang
2009-11-02 20:50 ` Jeremy Fitzhardinge
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.