Changeset 15717 in vbox for trunk

Timestamp:

Dec 22, 2008 2:56:10 PM (16 years ago)

Author:

vboxsync

Message:

iprt/memobj.h: added a @remark concerning RTR0MemObjLockUser on Linux

File:

• trunk/include/iprt/memobj.h (modified) (1 diff)

trunk/include/iprt/memobj.h

@@ -151 +151 @@
  *
  * @remark  RTR0MemGetAddressR3() and RTR0MemGetAddress() will return the rounded down address.
+ * @remark  On Linux, this should never be used on heap memory, as pages locked down in this
+ *          way will be missing from the child's virtual address space after a fork() call.  This
+ *          is currently irreversible, and applies even if the fork takes place after the virtual
+ *          memory has been unlocked again.
  */
 RTR0DECL(int) RTR0MemObjLockUser(PRTR0MEMOBJ pMemObj, RTR3PTR R3Ptr, size_t cb, RTR0PROCESS R0Process);