Cynthia Kiser spake the following on 2/5/2007 1:50 PM: > I have an older server I am trying to update to CentOS 4.3 but I can't > get to the installer screen because the machine kernel panics when > booted from the install CD. The error message I get is: > > Kernel panic - not syncing: include/linux/smp_lock.h:25 > spin_unlock(kernel/sched.c:c035) not locked > > The boot messages before this point are mainly to do with acpi > including: > > acpi_ps_parse_anl > acpi_?s_one_complete > ... > acpi_early_init > start_kernel > Kernel panic .... > > At a guess, I tried starting the installer with the options: > linux text acpi=off noprobe > > I am not really clear on what part of the boot process is failing so I > tried a number of random boot options including apm=off, noapic, apic, > nomce. Nothing I tried change the error. (I also tried installing RHEL > 4 but I got the same failure with less informative error reporting: > Kernel panic - not syncing: Attempted to kill the idle task!) > > I also tried changing my BIOS options - changing the interupt mode > from APIC to PIC which, if I understand the manual correctly, seems to > be AMIBIOS's version of turning off Plug and Play. Same error. > > Can anyone tell me what sort of thing is going wrong? Is the > smp_lock.h stuff for dual processors? The motherboard I have would > support 2 processors, but I only have one installed so don't see why I > am in SMP code. Is there something I can do to get CentOS 4 to > install? The only thing I can think of I haven't tried is to update > the BIOS - mostly because the instructions are not very well > translated so I am not completely sure how to use the Dual BIOS > feature to roll back if the new BIOS version creates more problems > than it solves. > > Hardware: > > Motherboard is a Gigabyte GA-7VRXP > http://www.gigabyte.com.tw/Products/Motherboard/Products_Spec.aspx?ClassValue=Motherboard&ProductID=1762&ProductName=GA-7VRXP > CPU is a single AMD XP2100+ > Disk is a normal IDE Maxtor > Memory 3 G of DDR SDRAM > > I can install CentOS 3.8 on this machine just fine, but I would like > to move to CentOS 4 because that is what my beefier database machines > are running (or will when I get the rest of them upgraded). > > Thanks for any help folks can give me. First thing... The motherboard in the link does NOT support 2 processors. Did you send wrong link? Did you try installing with less memory? See if you can boot from the 4.4 live CD. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!!