I encountered this error when running my Windows Embedded 7 32-bit Guest VM on a Windows 7 64 bit Host. It happens sporadically after about 5-20 minutes of non-activity.
I'm using VirtualBox 4.3.18 r96516 win.amd64. The Virtualbox and Windows 7 Embedded Guest is a migration over from my old notebook also running Windows 7 64 bit and VirtualBox VM4.3.18 - I copied over the Virtualmachine folders to the same path on my new notebook and replaced the default VirtualBox.xml with the one from my old notebook computer.
After this, I removed the Windows 7 Embedded VM, created a new VM, reinstall Windows 7 Embedded, but the problem remains.
I've gone through vbox.log but can't see any reason stated, or at least I'm not able to recognize the error.
Attached the full vbox.log. See "01:23:00.832135 !! Guru Meditation -2403 (VERR_TRPM_DONT_PANIC)"
If anyone has encountered this, please help me. Thanks.

Code: Select all
01:23:00.832133 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
01:23:00.832135 !!
01:23:00.832135 !! Guru Meditation -2403 (VERR_TRPM_DONT_PANIC)
01:23:00.905153 !!
01:23:00.927555 !! TRAP=0e ERRCD=0000000000000000 CR2=00000000a0055b38 EIP=8f09273a Type=0 cbInstr=ff
01:23:00.927577 !! EIP in VBoxDDGC.gc (8f08c000) at rva 673a near symbols:
01:23:00.927579 !! 8f091cb0 rva 00005cb0 off 00000a8a kbdIOPortCommandWrite
01:23:00.927581 !! 8f0927d0 rva 000067d0 off -00000096 acpiPMTmrRead
01:23:00.947901 !! fff8:8f09273a 8b 4a 08 mov ecx, dword [edx+008h]
01:23:00.947912 !!
01:23:00.947913 !!
01:23:00.947913 !!
01:23:00.947919 Hypervisor CPUM state:
01:23:00.950183 .eax=00000001 .ebx=8e455c30 .ecx=00000000 .edx=a0055b30 .esi=00000321 .edi=00000001
01:23:00.950186 .eip=8f09273a .esp=8e55fe0c .ebp=8e55fe1c .iopl=0 rf nv up di pl zr na pe nc
01:23:00.950188 .cs={fff8 base=0000000000000000 limit=00000000 flags=00000000} .dr0=00000000 .dr1=00000000
01:23:00.950190 .ds={fff0 base=0000000000000000 limit=00000000 flags=00000000} .dr2=00000000 .dr3=00000000
01:23:00.950192 .es={fff0 base=0000000000000000 limit=00000000 flags=00000000} .dr4=00000000 .dr5=00000000
01:23:00.950193 .fs={0000 base=0000000000000000 limit=00000000 flags=00000000} .dr6=00000000 .dr7=00000400
01:23:00.950195 .gs={0000 base=0000000000000000 limit=00000000 flags=00000000} .cr0=00000000 .cr2=00000000
01:23:00.950196 .ss={fff0 base=0000000000000000 limit=00000000 flags=00000000} .cr3=c8cac000 .cr4=00000000
01:23:00.950198 .gdtr=000000008eda8000:ffff .idtr=000000008e406c90:07ff .eflags=00010002
01:23:00.950200 .ldtr={0000 base=00000000 limit=00000000 flags=00000000}
01:23:00.950201 .tr ={0028 base=00000000 limit=00000000 flags=00000000}
01:23:00.950202 .SysEnter={cs=0000 eip=00000000 esp=00000000}
01:23:00.950304 .FCW=0000 .FSW=0000 .FTW=0000 .FOP=0000 .MXCSR=00000000 .MXCSR_MASK=00000000
01:23:00.950305 .FPUIP=00000000 .CS=0000 .Rsrvd1=0000 .FPUDP=00000000 .DS=0000 .Rsvrd2=0000
01:23:00.950328 .ST(0)=.FPR0={0000'00000000'00000000} t0 +0.0000000000000000000000 ^ 0
01:23:00.950342 .ST(1)=.FPR1={0000'00000000'00000000} t0 +0.0000000000000000000000 ^ 0
01:23:00.950356 .ST(2)=.FPR2={0000'00000000'00000000} t0 +0.0000000000000000000000 ^ 0
01:23:00.950368 .ST(3)=.FPR3={0000'00000000'00000000} t0 +0.0000000000000000000000 ^ 0
01:23:00.950380 .ST(4)=.FPR4={0000'00000000'00000000} t0 +0.0000000000000000000000 ^ 0
01:23:00.950391 .ST(5)=.FPR5={0000'00000000'00000000} t0 +0.0000000000000000000000 ^ 0
01:23:00.950403 .ST(6)=.FPR6={0000'00000000'00000000} t0 +0.0000000000000000000000 ^ 0
01:23:00.950415 .ST(7)=.FPR7={0000'00000000'00000000} t0 +0.0000000000000000000000 ^ 0
01:23:00.950426 .XMM0 =00000000'00000000'00000000'00000000 .XMM1 =00000000'00000000'00000000'00000000
01:23:00.950441 .XMM2 =00000000'00000000'00000000'00000000 .XMM3 =00000000'00000000'00000000'00000000
01:23:00.950455 .XMM4 =00000000'00000000'00000000'00000000 .XMM5 =00000000'00000000'00000000'00000000
01:23:00.950469 .XMM6 =00000000'00000000'00000000'00000000 .XMM7 =00000000'00000000'00000000'00000000
01:23:00.950482 .XMM8 =00000000'00000000'00000000'00000000 .XMM9 =00000000'00000000'00000000'00000000
01:23:00.950496 .XMM10=00000000'00000000'00000000'00000000 .XMM11=00000000'00000000'00000000'00000000
01:23:00.950510 .XMM12=00000000'00000000'00000000'00000000 .XMM13=00000000'00000000'00000000'00000000
01:23:00.950523 .XMM14=00000000'00000000'00000000'00000000 .XMM15=00000000'00000000'00000000'00000000
01:23:00.950536 .EFER =0000000000000000
01:23:00.950537 .PAT =0000000000000000
01:23:00.950537 .STAR =0000000000000000
01:23:00.950538 .CSTAR =0000000000000000
01:23:00.950539 .LSTAR =0000000000000000
01:23:00.950539 .SFMASK =0000000000000000
01:23:00.950540 .KERNELGSBASE =0000000000000000
01:23:00.950555 CR4OrMask=0x204 CR4AndMask=0x403
01:23:00.951096 DBGF: Lazy init of RC address space
01:23:00.976386 !!
01:23:00.976387 !! Call Stack:
01:23:00.976387 !!
01:23:00.976388 EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP Symbol [line]
01:23:00.976395 8e55fe1c 8e55fe40 0001:8f09284c 8e455c30 d157a348 00000117 8e457740 0001:8f09273a vboxddgc.gc!kbdIOPortCommandWrite+a8a
01:23:00.976417 8e55fe40 8e55fe68 0001:8f033e96 8e455b30 00000000 00004008 8e55feac 0001:8f09284c vboxddgc.gc!acpiPMTmrRead+7c
01:23:00.976435 8e55fe68 8e55fe98 0001:8f03441b 8f0927d0 8e41c000 00004008 8e55feac 0001:8f033e96 vmmgc.gc!IOMIOPortRead+b6
01:23:00.976452 8e55fe98 8e55feb0 0001:8efd27b5 8e401000 8e41c000 8e41cb40 ffffffff 0001:8f03441b vmmgc.gc!IOMInterpretIN+6b
01:23:00.976469 8e55feb0 8e55ffa0 0001:8efd54f5 8e401000 8e41c000 8e41cb40 8e55fed4 0001:8efd27b5 vmmgc.gc!IOMRCIOPortHandler+35
01:23:00.976485 8e55ffa0 8e55ffbc 0001:8efd57f5 8e401000 8e41c000 80000133 8e41f740 0001:8efd54f5 vmmgc.gc!trpmRCShadowIDTWriteHandler+1145
01:23:00.976502 8e55ffbc 99860cc0 0001:8efd5e90 8e41f740 8e41cb40 00000000 00000000 0001:8efd57f5 vmmgc.gc!trpmRCShadowIDTWriteHandler+1445
01:23:00.976518 99860cc0 00000000 0001:00000000 00000000 00000000 00000000 00000000 0001:8efd5e90 vmmgc.gc!TRPMGCHandlerGeneric+280
01:23:00.976529 !!
01:23:00.976529 !! Raw stack (mind the direction). pbEMTStackRC=8e55e000 pbEMTStackBottomRC=8e560000
01:23:00.976531 !!