Displaying 6 results from an estimated 6 matches for "upcall_pending".
2012 Oct 17
28
Xen PVM: Strange lockups when running PostgreSQL load
I am currently looking at a bug report[1] which is happening when
a Xen PVM guest with multiple VCPUs is running a high IO database
load (a test script is available in the bug report).
In experimenting it seems that this happens (or is getting more
likely) when the number of VCPUs is 8 or higher (though I have
not tried 6, only 2 and 4), having autogroup enabled seems to
make it more likely, too
2006 Feb 24
2
[PATCH][discuss] evtchn race condition
...n case any other
notifications
* are pending.
*/
- if ( d->shared_info->evtchn_pending[port/BITS_PER_LONG] )
- set_bit(port/BITS_PER_LONG, &v->vcpu_info->evtchn_pending_sel);
- if ( v->vcpu_info->evtchn_pending_sel )
- v->vcpu_info->evtchn_upcall_pending = 1;
+ set_bit(port/BITS_PER_LONG, &v->vcpu_info->evtchn_pending_sel);
+ v->vcpu_info->evtchn_upcall_pending = 1;
}
void hvm_safe_block(void)
@@ -735,12 +733,15 @@
for ( ; ; )
{
/* Clear master flag & selector flag so we will wake from
block. */
-...
2009 Apr 06
5
Config to set CPU affinity and distribute interrupts
Hi,
I have some problems to configure the xen I''ve installed (3.3.1). The computer is a Intel Core 2 Duo, I''m using Ubuntu 8.10 and have linux in my dom0 and winxp pro in my domU.
I have two cores and I''d like to set the affinity of dom0 to cpu0 and domU to cpu1 but I haven''t find the way of making this permanent. I''ve set cpus=1 in the domU config
2008 Sep 05
0
3.2.1+ HVM + HAP + NUMA - Poor Memory Performance
Hi Everyone,
I am running 3.2.1 on Centos 5.2 with HAP enabled, NUMA enabled, ACPI
enabled and the dom0 allocated 512Mb. I have setup a single core 1Gb VM
for performance testing under Windows 2008 Server. Most CPU results are
within a few percent of theoretical max but Memory performance is about
half what I expected.
I get 3.22Gb/Sec Sandra 2009 Memory performance for a single Opteron
8350
2011 Nov 08
48
Need help with fixing the Xen waitqueue feature
The patch ''mem_event: use wait queue when ring is full'' I just sent out
makes use of the waitqueue feature. There are two issues I get with the
change applied:
I think I got the logic right, and in my testing vcpu->pause_count drops
to zero in p2m_mem_paging_resume(). But for some reason the vcpu does
not make progress after the first wakeup. In my debugging there is one
2005 Sep 30
14
pdb missing files?
Hello,
I''m trying to get PDB working in accordance with the instructions at
http://www.cl.cam.ac.uk/~sos22/replay.bk/docs/misc/XenDebugger-HOWTO and
a message from this list:
http://lists.xensource.com/archives/html/xen-devel/2004-08/msg00017.html
When I try to build pdb I first get errors because the Makefile is
configured to treat warnings as errors, and there are some warnings.