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Ticket Resolution Summary Owner Reporter
#3841 invalid BIOS microcode patch for AMD Athlon 64 David Sain
Description

My most is running an FX-60 dual core x64 CPU running Windows XP x64 ed with VirtualBox 2.2. Guest is OpenSolaris 0805 (SunOS 5.11).

Upon startup of the guest reports the following error

<begin> WARNING: BIOS microcode patch for AMD Athlon(tm) 64/Opteron(tm) processor erratum 131 was not detected; updating your system's BIOS to a version containing this microcode patch is HIGHLY recommended or erroneous system operation may occur. <end>

OpenSolaris 0805 failed to run with earlier versions of VirtualBox (previous was 2.4).

See attached screenshot

#8244 fixed BIOS32 PCI service wrong length Jonathan de Boyne Pollard
Description

File: source:trunk/src/VBox/Devices/PC/BIOS/rombios.c

This is the same bug as bug ID #3170157 registered at the Bochs bug database on SourceForge. The equivalent Bochs source file is bochs/bios/rombios.c .

Just before the bios32_end label in rombios.c we have

mov ecx, #0

According to the specification this should be the length of the code/data segment used to access the service. It's definitely not supposed to be zero length. Given that the base specified in the line above is 0xF0000, this will provide a reasonable length value for now:

mov ecx, #0x10000
#12576 obsolete BLKCACHE_IOERR Phinna
Description

Hi, I'm using a windows 7 64 bit virtual box on the windows 7 64 bit host for many months, but yesterday I suddenly couldn't open the virtual machine anymore. It always showed the error message: the I/O cache encountered an error while updating data in medium "ahci-0-0". Before I got this error message, some activities I did were:

  1. Ran my codes written by python language.
  2. Installed a python module called easy_install.
  3. Launched Firefox internet.
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