VirtualBox であんまり見ないエラーが起こったので記録だけしておく。

仮想マシン実行中に重大なエラーが発生したため、仮想マシンは停止しました。

けっこう怖いメッセージ。

ログ

%HOMEPATH%\VirtualBox VMs....\Logs の中にある VBox.log を見てみます。

アラートの「OK」を押す前

…
00:31:20.309048 VBVA_INFO_SCREEN: [0] @0,0 1024x768, line 0x1000, BPP 0, flags 0x1
00:31:20.309140 VBVA_INFO_SCREEN: [0] @0,0 1024x768, line 0x1000, BPP 0, flags 0x1
01:34:11.533864 PGM: Failed to procure handy pages; rc=VERR_NO_MEMORY rcAlloc=VINF_SUCCESS rcSeed=VINF_SUCCESS cHandyPages=0x8
01:34:11.533872      cAllPages=0x5ec67 cPrivatePages=0x4379b cSharedPages=0x0 cZeroPages=0x1b487
01:34:11.534119 GMM: Statistics:
01:34:11.534120      Allocated pages: 4279f
01:34:11.534121      Maximum   pages: 5dc9e
01:34:11.534122      Ballooned pages: 0
01:34:11.560353 VM: Raising runtime error 'HostMemoryLow' (fFlags=0x2)
01:34:11.561017 AssertLogRel F:\tinderbox\win-4.3\src\VBox\VMM\VMMR3\VMM.cpp(1756) int __cdecl VMMR3EmtRendezvous(struct VM *,unsigned int,int (__cdecl *)(struct VM *,struct VMCPU *,void *),void *): !pVCpu->vmm.s.fInRendezvous
01:34:11.561034 Console: VM runtime error: fatal=false, errorID=HostMemoryLow message="Unable to allocate and lock memory. The virtual machine will be paused. Please close applications to free up memory or close the VM"
01:34:11.563543 Changing the VM state from 'RUNNING' to 'GURU_MEDITATION'.

「HostMemoryLow」というところがキモですね。

アラートの「OK」を押した後

01:37:14.317830 Console::powerDown(): A request to power off the VM has been issued (mMachineState=Stopping, InUninit=0)
01:37:14.325153 Changing the VM state from 'GURU_MEDITATION' to 'POWERING_OFF'.
01:37:14.325172 ****************** Guest state at power off ******************
01:37:14.326770 Guest CPUM (VCPU 0) state: 
01:37:14.327552 rax=ffff88001f201000 rbx=0000000000000001 rcx=000000000000000c rdx=000000000000000c
…
01:37:14.327838 KERNELGSBASE =0000000000000000
01:37:14.327839 ***
01:37:14.328528 Guest paging mode:  AMD64+NX (changed 251224 times), A20 enabled (changed 2 times)
01:37:14.328531 Shadow paging mode: EPT
01:37:14.328753 Host paging mode:   AMD64+G+NX
01:37:14.328754 ***
01:37:14.328915 Active Timers (pVM=0000000003f60000)
…
01:37:14.330162 ***
01:37:14.330165 ************** End of Guest state at power off ***************
01:37:14.377067 PDMR3PowerOff: 46 239 027 ns run time
01:37:14.377400 Changing the VM state from 'POWERING_OFF' to 'OFF'.
01:37:14.388006 Changing the VM state from 'OFF' to 'DESTROYING'.
01:37:14.388047 ************************* Statistics *************************
01:37:14.388106 /CPUM/MSR-Totals/Reads                 64 times
…
01:37:14.389385 /VUSB/0/cUrbsInPool                     0 count
01:37:14.389388 ********************* End of statistics **********************
…
01:37:15.212858 Changing the VM state from 'DESTROYING' to 'TERMINATED'.
01:37:15.780919 UIMachineView::storeGuestSizeHint: Storing guest size-hint for screen 0 as 1024x768

メモリ不足が原因

せやな。としか言えない。