 Home |
Products |
Support |
Community |
News |
xen-devel
[Xen-devel] get_page put_page cmpxchg problem?
| To: | <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] get_page put_page cmpxchg problem? |
| From: | "King, Steven R" <steven.r.king@xxxxxxxxx> |
| Date: | Thu, 21 Jul 2005 13:59:30 -0700 |
| Delivery-date: | Thu, 21 Jul 2005 20:58:10 +0000 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| List-help: | <mailto:xen-devel-request@lists.xensource.com?subject=help> |
| List-id: | Xen developer discussion <xen-devel.lists.xensource.com> |
| List-post: | <mailto:xen-devel@lists.xensource.com> |
| List-subscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | AcWONxayz4eoYJovTLCKzgySH6MFAg== |
| Thread-topic: | get_page put_page cmpxchg problem? |
|
Hi
Folks,
In -unstable (I
haven't updated in a few days), I'm investigating a problem in which
revalidate_l1() fails because get_page() fails due to a count_info of
0. While that problem is still hanging over me, I did notice that
get_page() in include/asm-x86/mm.h does a 64-bit cmpxchg while put_page()
only does a 32-bit cmpxchg. Seemed odd to me and possibly related to my
bug. I'm running on a 32-bit machine without shadow
tables.
Can anyone offer an
explanation?
Thanks for your
time,
-steve
_______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | [Xen-devel] Context Switching, David_Wolinsky |
|---|---|
| Next by Date: | Re: [Xen-devel] Context Switching, Khoa Huynh |
| Previous by Thread: | [Xen-devel] Context Switching, David_Wolinsky |
| Next by Thread: | Re: [Xen-devel] get_page put_page cmpxchg problem?, Keir Fraser |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
