random Guru meditation in guest Unbutu lts server

[triven]

Hi Everyone:)

I am trying to install Ubuntu lts server on windows xp host . The installation goes into Guru meditation at random point of time. Please help me in this..Attached in vbox.log and png file.

[mpack]

00:12:05.484201 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
00:12:05.484204 !!
00:12:05.484204 !! Guru Meditation -2403 (VERR_TRPM_DONT_PANIC)
00:12:05.484220 !!
00:12:05.484253 !! TRAP=0e ERRCD=0000000000000002 CR2=000000000000000c EIP=ff88839e Type=0 cbInstr=ff
00:12:05.484276 !! EIP in VBoxDDGC.gc (ff876000) at rva 1239e near symbols:
00:12:05.484279 !! ff888100 rva 00012100 off 0000029e ohciMmioWrite
00:12:05.484280 !! ff888c30 rva 00012c30 off -00000892 ahciMMIORead
00:12:05.484318 !! fff8:ff88839e 88 48 0c mov byte [eax+00ch], cl
00:12:05.484322 !!
00:12:05.484323 !!
00:12:05.484323 !!
00:12:05.484328 Hypervisor CPUM state:
00:12:05.484332 .eax=00000000 .ebx=ff047070 .ecx=00000001 .edx=20000001 .esi=ff047588 .edi=20000000
00:12:05.484335 .eip=ff88839e .esp=ff15fd70 .ebp=ff15fd80 .iopl=0 rf nv up di pl nz na po nc

Not a crash I'm familiar with, but if the register and assembly dump is to be believed, that looks suspiciously like it's trying to deref a null pointer. You might want to raise a BugTracker ticket for this.

Random notes:

• Extension pack has not been installed (so no USB2 support).
• I see you appear to have VT-x enabled in the VM, though it's disabled in the host BIOS.
• You have IO-APIC disabled in the VM recipe, it might be worth turning this on.
• Your host only has 3GB total RAM, 2GB available. So 1GB to the VM takes quite a lot of your available RAM.

[Perryg]

Code: Select all

00:00:00.652938 HMR3Init: Falling back to raw-mode: VT-x is disabled in the BIOS.

I would first enable VT-x ( hardware virtualization ) in your PC bios.

[triven]

Bug submitted:Ticket #12551

[triven]

I got smooth ubuntu installation after enabling harware virtialization on host. Thanks..

[triven]

I m not able to remove ticket that I submitted as suggested by mpack. Please remove it.

[mpack]

I m not able to remove ticket that I submitted as suggested by mpack. Please remove it.

Why? A null pointer deref is a bug whether or not you found a workaround. The software should never crash under any circumstances.