id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host 17759,Kernel error messages (fixed in svn),Feline,,"Both VirtualBox 5.2.10 and 5.2.12 produce the following error messages in the kernel log kernel: [ 92.635587] AssertLogRel /home/vbox/vbox-5.2.12/src/VBox/VMM/VMMAll/PGMAllPhys.cpp(2345) VBOXSTRICTRC pgmPhysReadHandler(PVM, PPGMPAGE, RTGCPHYS, void*, size_t, PGMACCESSORIGIN): PGM_HANDLER_PHYS_IS_VALID_STATUS(rcStrict, false) kernel: [ 92.635592] rcStrict=2624 GCPhys=00000000f0804030 These are repeated hundreds of times over a five second period. They appear after the guest has started but not actually at initialisation of the virtual machine. Attached is kernel log showing the messages starting at 14:19:41 which was nineteen seconds after starting the virtual machine and once the desktop was displayed within the guest. It happens on both a self-built machine (Asus motherboard) and a ThinkCentre M91p. Hosts on both machines are running Debian 9 with the 4.16.5 kernel from backports. Guests affected are both Windows 7 Professional (32 bit) and various Debian distros. I've tried running the kernels with both KPI (Kernel Page Table Isolation) off and on with the same result. I have also switched off Large Page Tables within the VM guest config but still get the same error. I have attached both the kernel log (edited to remove the vast majority of repeated error messages) and the VM guest release log. The release log includes the wall clock time so as to make it easier to match activity with the kernel log. Problem did not occur with 5.2.8 and below.",defect,closed,other,VirtualBox 5.2.12,fixed,,,all,Linux