Andreas Kling 843d0d0d15 Kernel: Detach AnonymousVMObject from shared COW pages set once emptied ... We currently overcommit for COW when forking a process and cloning its memory regions. Both the parent and child process share a set of. committed COW pages. If there's COW sharing across more than two processeses within a lineage (e.g parent, child & grandchild), it's possible to exhaust these pages. When the shared set is emptied, the next COW fault in each process must detach from the shared set and fall back to on demand allocation. This patch makes sure that we detach from the shared set once we discover it to be empty (during COW fault handling). This fixes an issue where we'd try to allocate from an exhausted shared set while building GNU binutils inside SerenityOS.		2021-08-05 17:41:58 +02:00
..
AllocationStrategy.h	Everywhere: Use "the SerenityOS developers." in copyright headers	2021-04-29 00:59:26 +02:00
AnonymousVMObject.cpp	Kernel: Detach AnonymousVMObject from shared COW pages set once emptied	2021-08-05 17:41:58 +02:00
AnonymousVMObject.h	Kernel: Handle AnonymousVMObject allocation failure when forking	2021-08-05 17:41:58 +02:00
InodeVMObject.cpp	Kernel: Simplify VMObject locking & page fault handlers	2021-07-23 03:24:44 +02:00
InodeVMObject.h	Kernel: Simplify VMObject locking & page fault handlers	2021-07-23 03:24:44 +02:00
MappedROM.h	Kernel: Pull apart CPU.h	2021-06-24 00:38:23 +02:00
MemoryManager.cpp	Kernel: Use RAII to manage committed physical pages	2021-08-05 17:41:58 +02:00
MemoryManager.h	Kernel: Use RAII to manage committed physical pages	2021-08-05 17:41:58 +02:00
PageDirectory.cpp	Kernel: Support loading the kernel at almost arbitrary virtual addresses	2021-07-27 13:15:16 +02:00
PageDirectory.h	Kernel: Fix 64-bit address truncation in MemoryManager::ensure_pte()	2021-07-18 17:31:13 +02:00
PageFaultResponse.h	Everywhere: Use "the SerenityOS developers." in copyright headers	2021-04-29 00:59:26 +02:00
PhysicalPage.cpp	Kernel: Convert the PhysicalPage bool parameter to an enum	2021-07-17 18:38:28 +04:30
PhysicalPage.h	Kernel: Convert the PhysicalPage bool parameter to an enum	2021-07-17 18:38:28 +04:30
PhysicalRegion.cpp	Kernel: Remove debug spam when PhysicalRegion::take_free_page() fails	2021-07-14 01:37:31 +02:00
PhysicalRegion.h	Kernel: Fix logic error in PhysicalRegion::contains()	2021-07-14 01:37:19 +02:00
PhysicalZone.cpp	Kernel: Cut allocation size for physical buddy bitmaps in half	2021-07-13 23:47:49 +02:00
PhysicalZone.h	Kernel: Remove some friendships and make some classes non-copy/moveable	2021-07-13 23:19:00 +02:00
PrivateInodeVMObject.cpp	Kernel: Convert VMObject & subclasses to east-const style	2021-07-22 09:17:02 +02:00
PrivateInodeVMObject.h	Kernel: Convert VMObject & subclasses to east-const style	2021-07-22 09:17:02 +02:00
ProcessPagingScope.cpp	Kernel: Remove unused header includes in VM subtree	2021-07-11 21:37:38 +02:00
ProcessPagingScope.h	Everything: Move to SPDX license identifiers in all files.	2021-04-22 11:22:27 +02:00
Range.cpp	Kernel: Move special sections into Sections.h	2021-06-24 00:38:23 +02:00
Range.h	Everywhere: Prefix hexadecimal numbers with 0x	2021-07-22 08:57:01 +02:00
RangeAllocator.cpp	Kernel: Make allocate_randomized() work for 64-bit addresses	2021-07-18 17:31:13 +02:00
RangeAllocator.h	Kernel: Declare VM/RangeAllocator trivial destructor as default	2021-07-17 13:02:09 +02:00
Region.cpp	Kernel: Remove unnecessary counting of VMObject-attached Regions	2021-07-25 17:28:06 +02:00
Region.h	Kernel: Remove unused Region::translate_vmobject_page_range()	2021-07-27 13:17:33 +02:00
RingBuffer.cpp	Kernel: Add support for reading from VirtIOConsole	2021-07-09 13:19:21 +04:30
RingBuffer.h	Kernel: Support multiport for VirtIOConsole	2021-07-09 13:19:21 +04:30
ScatterGatherList.cpp	Kernel: Consolidate API for creating AnonymousVMObject with given pages	2021-07-22 09:17:02 +02:00
ScatterGatherList.h	Kernel: Consolidate API for creating AnonymousVMObject with given pages	2021-07-22 09:17:02 +02:00
SharedInodeVMObject.cpp	Kernel: Convert VMObject & subclasses to east-const style	2021-07-22 09:17:02 +02:00
SharedInodeVMObject.h	Kernel: Convert VMObject & subclasses to east-const style	2021-07-22 09:17:02 +02:00
Space.cpp	Kernel: Unmapping a non-mapped region with munmap() should be a no-op	2021-07-30 13:16:55 +02:00
Space.h	Kernel: Rename Space::create => Space::try_create()	2021-07-27 14:54:35 +02:00
TypedMapping.h	Kernel/TypedMapping: Round up length with offset_in_page	2021-07-02 13:16:12 +02:00
VMObject.cpp	Kernel: Remove unnecessary counting of VMObject-attached Regions	2021-07-25 17:28:06 +02:00
VMObject.h	Kernel: Remove unnecessary counting of VMObject-attached Regions	2021-07-25 17:28:06 +02:00