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dom0/qmemman: notify qubes-manager about misbehaving VMs (#615)

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This commit is contained in:
Marek Marczykowski 2012-07-05 01:27:36 +02:00
parent b4070a99a3
commit e70b690150
1 changed files with 9 additions and 0 deletions
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9
dom0/qmemman/qmemman.py
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@ -4,6 +4,7 @@ import string
import time
import qmemman_algo
import os
from guihelpers import notify_error_qubes_manager, clear_error_qubes_manager
no_progress_msg="VM refused to give back requested memory"
slow_memset_react_msg="VM didn't give back all requested memory"
@ -64,10 +65,14 @@ class SystemState:
for i in self.domdict.keys():
if self.domdict[i].slow_memset_react and \
self.domdict[i].memory_actual <= self.domdict[i].last_target + self.XEN_FREE_MEM_LEFT/4:
dom_name = self.xs.read('', '/local/domain/%s/name' % str(i))
clear_error_qubes_manager(dom_name, slow_memset_react_msg)
self.domdict[i].slow_memset_react = False
if self.domdict[i].no_progress and \
self.domdict[i].memory_actual <= self.domdict[i].last_target + self.XEN_FREE_MEM_LEFT/4:
dom_name = self.xs.read('', '/local/domain/%s/name' % str(i))
clear_error_qubes_manager(dom_name, no_progress_msg)
self.domdict[i].no_progress = False
#the below works (and is fast), but then 'xm list' shows unchanged memory value
@ -208,9 +213,13 @@ class SystemState:
if prev_memactual[dom2] == self.domdict[dom2].memory_actual:
print 'dom %s didnt react to memory request (holds %d, requested balloon down to %d)' % (dom2, self.domdict[dom2].memory_actual, mem2)
self.domdict[dom2].no_progress = True
dom_name = self.xs.read('', '/local/domain/%s/name' % str(dom2))
notify_error_qubes_manager(dom_name, no_progress_msg)
else:
print 'dom %s still hold more memory than have assigned (%d > %d)' % (dom2, self.domdict[dom2].memory_actual, mem2)
self.domdict[dom2].slow_memset_react = True
dom_name = self.xs.read('', '/local/domain/%s/name' % str(dom2))
notify_error_qubes_manager(dom_name, slow_memset_react_msg)
self.mem_set(dom, self.get_free_xen_memory() + self.domdict[dom].memory_actual - self.XEN_FREE_MEM_LEFT)
return