[ros-diffs] [ros-arm-bringup] 41511: - MC_NPPOOL is special-cased in the memory balancer core to always force the allocation of a page, even in low-memory conditions (which in ReactOS, occur early-on because, in a stroke of typical ReactOS genius, the balancer core is called before the balancer initailizes its values and thresholds). Make MC_SYSTEM special-cased as well, so we never fail to allocate page tables early-on. - This fixes booting on systems which required enough page tables such that the balancer refused the allocation of new pages (around 64+16 pages for page tables of 4KB each, ie. 320MB).
ros-arm-bringup at svn.reactos.org
ros-arm-bringup at svn.reactos.org
Sun Jun 21 11:08:06 CEST 2009
Author: ros-arm-bringup
Date: Sun Jun 21 13:08:05 2009
New Revision: 41511
URL: http://svn.reactos.org/svn/reactos?rev=41511&view=rev
Log:
- MC_NPPOOL is special-cased in the memory balancer core to always force the allocation of a page, even in low-memory conditions (which in ReactOS, occur early-on because, in a stroke of typical ReactOS genius, the balancer core is called before the balancer initailizes its values and thresholds). Make MC_SYSTEM special-cased as well, so we never fail to allocate page tables early-on.
- This fixes booting on systems which required enough page tables such that the balancer refused the allocation of new pages (around 64+16 pages for page tables of 4KB each, ie. 320MB).
Modified:
trunk/reactos/ntoskrnl/mm/balance.c
Modified: trunk/reactos/ntoskrnl/mm/balance.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/balance.c?rev=41511&r1=41510&r2=41511&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/mm/balance.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/balance.c [iso-8859-1] Sun Jun 21 13:08:05 2009
@@ -85,6 +85,8 @@
MiMemoryConsumers[MC_PPOOL].PagesTarget = NrAvailablePages / 2;
MiMemoryConsumers[MC_NPPOOL].PagesTarget = 0xFFFFFFFF;
MiMemoryConsumers[MC_NPPOOL].PagesUsed = NrSystemPages;
+ MiMemoryConsumers[MC_SYSTEM].PagesTarget = 0xFFFFFFFF;
+ MiMemoryConsumers[MC_SYSTEM].PagesUsed = 0;
}
VOID
@@ -221,7 +223,7 @@
/*
* Allocate always memory for the non paged pool and for the pager thread.
*/
- if (Consumer == MC_NPPOOL || MiIsBalancerThread())
+ if ((Consumer == MC_NPPOOL) || (Consumer == MC_SYSTEM) || MiIsBalancerThread())
{
Page = MmAllocPage(Consumer, 0);
if (Page == 0)
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