http://bugzilla.kernel.org/show_bug.cgi?id=7913
------- Additional Comments From [EMAIL PROTECTED] 2007-02-01 14:18 ------- ------- Additional Comments From [EMAIL PROTECTED] 2007-01-31 19:04 ------- >>Please boot Linux with "acpi=off" and see if the issue goes away. >>If it doesn't, then by definition, this is not a bug in >>the Linux kernel ACPI support. I don't know if ACPI is off the hook. The result of booting "acpi=off" is as follows: kernel panic. The workstation locks up and flashes codes on the keyboard. Repeating with an earlier kernel there is no effect of acpi=off. Recognizing that I'm a novice with BIOS issues, it still acts like the kernel is finding a problem in MBR and writing a correction. With acpi back on, it reboots ok with error message thrown in dmesg (search 'BIOS bug'). > > Well with kernel 2.6.9-34.0.2.EL some disk > > - not sure which - is found to fail a test - see the dmesg output attached. >Exactly what failure do you refer to? I don't see one. Please search for 'BIOS bug' in dmesg. > > The kernel attempts to correct this somehow, I think by writing to the boot > > sector. Then on restart, ACPI detects a change and reloads default boot > > order, booting on the Windows disk - eeeegaaaads. >No, I don't think Linux is writing to the boot sector. It acts like it to a casual observer. This doesn't mean it is. >Do you see a message from the BIOS on reset about an invalid CMOS >checksum and resetting to defaults? Yes I do. The exact words are: Default BIOS settings have been loaded due to BIOS update or checksum issue. This message is put up by an American Megatrends product (www.ami.com). I have a screen shot from digital camera if you need it. > > Won't fit here >note that bugzilla accepts attachments -- which is a preferable >way to put a dmesg in a bug report vs pasting it into the text. I attached it this time to make it easier for you to search for the message 'BIOS bug' >>BTW. it appears you are running a uni-processor kernel on an SMP -- why? When I installed, I asked for nearly everything to be installed. The machine is a uni-processor. I manually modified GRUB to only boot the single CPU kernel because it was trying to boot up on SMP by default. My impression was that, for some reason, having everything installed sets some switches to SMP mode. For example, irqbalance is on after this type of install even booting on the signel CPU kernel and I have to go 'uncheck' it to prevent an apparently harmless error message on shutdown. This same install thing happened on another pc I have - single CPU e-machine athlon. With kernel updates, the emachine does not have the BIOS activity that we're talking about. It also is not a dual boot setup. I could get some bootup info off that one if you're interested. ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. You are on the CC list for the bug, or are watching someone who is. ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ acpi-bugzilla mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
