> Finally got it to work by trial and error. If I boot the machine with > 'noapic' and remove all splash and > vga= options I systematically get all cores recognized. Seems like 'noapic' > is the real key here. > Without it, booting can bring up 1, 2 or 4 cores in a seemingly random > fashion.
See, that's weird, because it used to be that disabling APIC would disable SMP. Maybe it doesn't work that way anymore, I'll try to give it a shot. Thanks for the workaround! -- Usually misses 2nd processor https://bugs.launchpad.net/bugs/97554 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs