Description of problem: After having upgraded from fc5 to fc6 the kernel-2.6.18-1.2798.fc6.i686 locks up hard during bootup. Grub boots up normally, but afterwards the kernel seems to hang in a very early stage of initializing the kernel. This is the end of the printout on the terminal: ... ACPI: Core revision 20060707 ACPU; setting ELCR to 0800 (from 0020) CPU0: Intel(R) Pentium(R) 4 CPU 2.60GHz stepping 07 Afterwards, the machine is completely non-responsive (Not even the 3-finger salute works), only the "power button" reacts. No visible nor audible dactivity, no logs, just nothing. Booting an fc5 kernel underneath fc6, this machine seems to work flawlessly. Version-Release number of selected component (if applicable): kernel-2.6.18-1.2798.fc6.i686
can you try booting with initcall_debug, and see if that changes the last few lines that gets printed ? Can you also try booting with nolapic and see if that makes a difference ?
(In reply to comment #1) > can you try booting with initcall_debug, and see if that changes the last few > lines that gets printed ? No, it doesn't. > Can you also try booting with nolapic and see if that makes a difference ? Doesn't either.
Same with kernel-2.6.18-1.2835.fc6.i686.rpm - No improvement
(In reply to comment #1) > Can you also try booting with nolapic and see if that makes a difference ? FWIW: w/ kernel-2.6.18-1.2200.fc5 I am observing this bootmsg: ... Kernel command line: ro root=/dev/VolGroup00/LogVol00 3 Local APIC disabled by BIOS -- you can enable it with "lapic" mapped APIC to ffffd000 (01404000) ... Adding "lapic", this happens: ... Kernel command line: ro root=/dev/VolGroup00/LogVol00 lapic 3 Local APIC disabled by BIOS -- reenabling. Found and enabled local APIC! mapped APIC to ffffd000 (fee00000) ... With "nolapic", this happens: ... Kernel command line: ro root=/dev/VolGroup00/LogVol00 nolapic 3 mapped APIC to ffffd000 (01404000) ... => With any of these parameters and kernel-2.6.18-1.2200.fc5, I can't sense any major user-visible behavioral change. 2.6.18-1*.fc6 kernels always hang, independently of whether specifying "lapic", "nolapic" or nothing on the kernel's command-line.
No improvement with kernel-2.6.18-1.2849.fc6.i686. Still as broken as all previous fc6 kernels. Further observations: * kernel-2.6.18-1.2239.fc5.i686 boots without any problems * Booting kernel-smp-2.6.18-1.2239.fc5.i686 bombs out with a kernel-oops * kernel-2.6.18-1.2849.fc6.i686 boots with acpi=off !!!!
Bug still present with 2.6.19-1.2911.fc6
Bug still present with kernel-2.6.22.1-41.fc7.i686
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