5a49a4e63b
22045-python27-compat.patch Thu Nov 11 18:44:48 CST 2010 - cyliu@novell.com - bnc#641144 - FV Xen VM running windows or linux cannot write to virtual floppy drive bdrv_default_rwflag.patch - fate#310510 - fix xenpaging xenpaging.optimize_p2m_mem_paging_populate.patch xenpaging.HVMCOPY_gfn_paged_out.patch - bnc#649864 - automatic numa cpu placement of xen conflicts with cpupools 22326-cpu-pools-numa-placement.patch - fate#310510 - fix xenpaging xenpaging.populate_only_if_paged.patch - revert logic, populate needs to happen unconditionally xenpaging.p2m_mem_paging_populate_if_p2m_ram_paged.patch - invalidate current mfn only if gfn is not in flight or done xenpaging.mem_event_check_ring-free_requests.patch - print info only if 1 instead of 2 slots are free xenpaging.guest_remove_page.patch - check mfn before usage in resume function xenpaging.machine_to_phys_mapping.patch - check mfn before usage in resume function - bnc#552115 - Remove target discovery in block-iscsi OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=82
83 lines
4.5 KiB
Diff
83 lines
4.5 KiB
Diff
Subject: xenpaging: add dynamic startup delay for xenpaging
|
|
|
|
This is a debug helper. Since the xenpaging support is still fragile, run
|
|
xenpaging at different stages in the bootprocess. Different delays will trigger
|
|
more bugs. This implementation starts without delay for 5 reboots, then
|
|
increments the delay by 0.1 seconds It uses xenstore for presistant storage of
|
|
delay values
|
|
|
|
TODO: find the correct place to remove the xenstore directory when the guest is shutdown or crashed
|
|
|
|
Signed-off-by: Olaf Hering <olaf@aepfle.de>
|
|
|
|
---
|
|
tools/python/xen/xend/image.py | 32 ++++++++++++++++++++++++++++++++
|
|
1 file changed, 32 insertions(+)
|
|
|
|
--- xen-4.0.1-testing.orig/tools/python/xen/xend/image.py
|
|
+++ xen-4.0.1-testing/tools/python/xen/xend/image.py
|
|
@@ -123,6 +123,18 @@ class ImageHandler:
|
|
|
|
self.device_model = vmConfig['platform'].get('device_model')
|
|
self.xenpaging = vmConfig['platform'].get('xenpaging')
|
|
+ self.xenpaging_delay = xstransact.Read("/local/domain/0/xenpaging/%s/xenpaging_delay" % self.vm.info['name_label'])
|
|
+ if self.xenpaging_delay == None:
|
|
+ log.warn("XXX creating /local/domain/0/xenpaging/%s" % self.vm.info['name_label'])
|
|
+ xstransact.Mkdir("/local/domain/0/xenpaging/%s" % self.vm.info['name_label'])
|
|
+ xstransact.Store("/local/domain/0/xenpaging/%s" % self.vm.info['name_label'], ('xenpaging_delay', '7.0'))
|
|
+ xstransact.Store("/local/domain/0/xenpaging/%s" % self.vm.info['name_label'], ('xenpaging_delay_inc', '0.1'))
|
|
+ xstransact.Store("/local/domain/0/xenpaging/%s" % self.vm.info['name_label'], ('xenpaging_delay_use', '5'))
|
|
+ xstransact.Store("/local/domain/0/xenpaging/%s" % self.vm.info['name_label'], ('xenpaging_delay_used', '0'))
|
|
+ self.xenpaging_delay = float(xstransact.Read("/local/domain/0/xenpaging/%s/xenpaging_delay" % self.vm.info['name_label']))
|
|
+ self.xenpaging_delay_inc = float(xstransact.Read("/local/domain/0/xenpaging/%s/xenpaging_delay_inc" % self.vm.info['name_label']))
|
|
+ self.xenpaging_delay_use = int(xstransact.Read("/local/domain/0/xenpaging/%s/xenpaging_delay_use" % self.vm.info['name_label']))
|
|
+ self.xenpaging_delay_used = int(xstransact.Read("/local/domain/0/xenpaging/%s/xenpaging_delay_used" % self.vm.info['name_label']))
|
|
|
|
self.display = vmConfig['platform'].get('display')
|
|
self.xauthority = vmConfig['platform'].get('xauthority')
|
|
@@ -401,6 +413,17 @@ class ImageHandler:
|
|
return
|
|
if self.xenpaging_pid:
|
|
return
|
|
+ if self.xenpaging_delay_used < self.xenpaging_delay_use:
|
|
+ self.xenpaging_delay_used += 1
|
|
+ else:
|
|
+ self.xenpaging_delay_used = 0
|
|
+ self.xenpaging_delay += self.xenpaging_delay_inc
|
|
+ log.info("delay_used %s" % self.xenpaging_delay_used)
|
|
+ log.info("delay_use %s" % self.xenpaging_delay_use)
|
|
+ log.info("delay %s" % self.xenpaging_delay)
|
|
+ log.info("delay_inc %s" % self.xenpaging_delay_inc)
|
|
+ xstransact.Store("/local/domain/0/xenpaging/%s" % self.vm.info['name_label'], ('xenpaging_delay', self.xenpaging_delay))
|
|
+ xstransact.Store("/local/domain/0/xenpaging/%s" % self.vm.info['name_label'], ('xenpaging_delay_used', self.xenpaging_delay_used))
|
|
xenpaging_bin = auxbin.pathTo("xenpaging")
|
|
args = [xenpaging_bin]
|
|
args = args + ([ "%d" % self.vm.getDomid()])
|
|
@@ -434,6 +457,9 @@ class ImageHandler:
|
|
except:
|
|
log.warn("chdir %s failed" % xenpaging_dir)
|
|
try:
|
|
+ if self.xenpaging_delay != 0.0:
|
|
+ log.info("delaying xenpaging startup %s seconds ..." % self.xenpaging_delay)
|
|
+ time.sleep(self.xenpaging_delay)
|
|
log.info("starting %s" % args)
|
|
os.execve(xenpaging_bin, args, env)
|
|
except Exception, e:
|
|
@@ -449,10 +475,16 @@ class ImageHandler:
|
|
self.xenpaging_pid = xenpaging_pid
|
|
os.close(null)
|
|
os.close(logfd)
|
|
+ if self.xenpaging_delay == 0.0:
|
|
+ log.warn("waiting for xenpaging ...")
|
|
+ time.sleep(22)
|
|
+ log.warn("waiting for xenpaging done.")
|
|
|
|
def destroyXenPaging(self):
|
|
if self.xenpaging is None:
|
|
return
|
|
+ # FIXME find correct place for guest shutdown or crash
|
|
+ #xstransact.Remove("/local/domain/0/xenpaging/%s" % self.vm.info['name_label'])
|
|
if self.xenpaging_pid:
|
|
try:
|
|
os.kill(self.xenpaging_pid, signal.SIGHUP)
|