Hi, I have managed to get more details by taking a video of the bootup with boot_delay=2000. The first few lines are typed out below:
ACPI: Using IOAPIC for interrupt routing --------------[ cut here ]-------------- WARNING: at /build/buildd/linux-2.6.38/kernel/sched_fair.c:1212 hrtimer_start_fair+0x10b/0x198() Hardware name: EV4873 Modules linked in: Process: 1 comm: swapper Not tainted 2.6.38-8-generic #42-Ubuntu Call trace: -------------[ end trace (a hex number) ]--------------- BUG: Unable to handle kernel paging request at 00000000000(big hex number) IP: [<fffffff(big hex number)>] cpuacct_charge+0x34/0x50 PGD 0 Thread overran stack, or stack corrupted Oops: 0000 [01] SMP last sysfs file: CPU 0 Modules linked in: Do you need more? Perhaps I should mention that this is a regression. I am still able to use the machine with the maverick 2.6.35 kernel. The machine is a laptop with an uncommon board. It only has one CPU. I've tried booting with nohz=off highres=off nolapic noapic and noacpi. I'm going to try booting with nosmp, and then I'm going to sleep. If this is the last message tonight, assume that didn't work either... Bruce -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/777952 Title: Kernel panic on boot after Natty upgrade -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
