Hi, Please try build 133 when it comes out. A rewritten IOMMU driver will be available then which should fix all of the intel IOMMU issues. That said, these ACERs seem to have at least one other problem not related to the IOMMU and that will not be fixed by the rewrite.
Also look for updated BIOS from ACER. Vikram On Friday 22 January 2010 16:46:59 Daniel Rock wrote: > > This time it appears to get much farther. The last > > two lines are: > > > > 8042 device: mouse at 1,mouse8042 #0 > > mouse80420 is /pci at 0,0/isa at 1f/i8042 at 1,20/mouse01 > > This sounds familiar to me. I have an Acer TM8371 and also have issues with > it. For this machine to boot I need *both* options: -B intel- iommu=no and > -B disable-ehci=true > > When the IOMMU is enabled the machine panics very early in boot with a page > fault. If I am lucky I get dropped back to kmdb, but the stack backtrace > is meaningless. Most of the time the system resets itself though. > > The console only shows the last 24 lines, so I have no idea of the messages > the kernel printed out before the page fault. > -- MAFIA, n: [Acronym for Mechanized Applications in Forced Insurance Accounting.] An extensive network with many on-line and offshore subsystems running under OS, DOS, and IOS. MAFIA documentation is rather scanty, and the MAFIA sales office exhibits that testy reluctance to bona fide inquiries which is the hallmark of so many DP operations. From the little that has seeped out, it would appear that MAFIA operates under a non-standard protocol, OMERTA, a tight- lipped variant of SNA, in which extended handshakes also perform complex security functions. The known timesharing aspects of MAFIA point to a more than usually autocratic operating system. Screen prompts carry an imperative, nonrefusable weighting (most menus offer simple YES/YES options, defaulting to YES) that precludes indifference or delay. Uniquely, all editing under MAFIA is performed centrally, using a powerful rubout feature capable of erasing files, filors, filees, and entire nodal aggravations. -- Stan Kelly-Bootle, "The Devil's DP Dictionary"