Messages in this thread | | | Date | Mon, 11 Aug 2008 22:23:06 -0400 | From | Steven Rostedt <> | Subject | Re: Only three cores found on quad-core machine. |
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On Fri, Aug 01, 2008 at 02:15:32PM -0400, Dave Jones wrote: > I just installed .27rc1 on a fairly recent quad-core machine. > The first thing that seemed out of the ordinary was only 3 penguins > showing up in the framebuffer. Closer examination after it had > booted revealed the backtrace-o-rama that is below. > > Dave >
[...]
> khelper used greatest stack depth: 5728 bytes left > net_namespace: 1680 bytes > Booting paravirtualized kernel on bare hardware > Time: 13:32:13 Date: 07/31/08 > NET: Registered protocol family 16 > No dock devices found. > ACPI: bus type pci registered > PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 127 > PCI: Not using MMCONFIG. > PCI: Using configuration type 1 for base access > khelper used greatest stack depth: 5016 bytes left > general protection fault: 0000 [1] SMP DEBUG_PAGEALLOC > CPU 2 > Modules linked in: > Pid: 0, comm: swapper Not tainted 2.6.27-0.205.rc1.git2.fc10.x86_64 #1 > RIP: 0010:[<ffffffff81094d61>] [<ffffffff81094d61>] ftrace_record_ip+0x214/0x22b
Dave,
Would it be possible to pull this kernel into gdb and show me the output of:
gdb> li *0xffffffff81094d61
and a
gdb> disass 0xffffffff81094d61
Thanks,
-- Steve
> RSP: 0018:ffff88007f04fe08 EFLAGS: 00010292 > RAX: ffffffff816b26c0 RBX: 000000000000010d RCX: 000000000000020f > RDX: ffff880001027f80 RSI: 0000000000000000 RDI: 0000000000000292 > RBP: ffff88007f04fe38 R08: 0000000000000075 R09: ffff88007fbd2090 > R10: 0000000000000046 R11: ffffffff81b68de8 R12: 00000040812fba2b > R13: 000a81a000000002 R14: ffffffff81b68de8 R15: 0000000000000292 > FS: 0000000000000000(0000) GS:ffff88007f821898(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006a0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process swapper (pid: 0, threadinfo ffff88007f04e000, task ffff88007f050000) > Stack: ffff88007f04fe78 0000002649d25248 00000040fffb6cbf 000a81a000000002 > 000000000051621c 0000000000000002 ffff88007f04fe98 ffffffff81010164 > 00000000fffb8093 0000000049d25248 ffff88007f050000 000000231a06706a > Call Trace: > [<ffffffff81010164>] mcount_call+0x5/0x31 > [<ffffffff812fba30>] ? read_current_timer+0xe/0x30 > [<ffffffff8130150b>] calibrate_delay+0xe2/0x2a7 > [<ffffffff8130615b>] start_secondary+0xc0/0x16e > >
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