On 22 May 2016 at 02:45, Bin Meng <bmeng...@gmail.com> wrote: > After power-on, both LAPIC and I/O APIC appear with the same APIC ID > zero, which creates an ID conflict. When generating MP table, U-Boot > reports zero as the LAPIC ID in the processor entry, and zero as the > I/O APIC ID in the I/O APIC as well as the I/O interrupt assignment > entries. Such MP table confuses Linux kernel and finally a kernel > panic is seen during boot: > > BUG: unable to handle kernel paging request at ffff9000 > IP: [<c101d462>] native_io_apic_write+0x22/0x30 > *pdpt = 00000000014fb001 *pde = 00000000014ff067 *pte = 0000000000000000 > Oops: 0002 [#1] > Modules linked in: > Pid: 1, comm: swapper Tainted: G W 3.8.7 #3 intel galileo/galileo > EIP: 0060:[<c101d462>] EFLAGS: 00010086 CPU: 0 > EIP is at native_io_apic_write+0x22/0x30 > ... > Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 > > Signed-off-by: Bin Meng <bmeng...@gmail.com> > --- > > arch/x86/cpu/quark/quark.c | 4 ++++ > 1 file changed, 4 insertions(+)
Reviewed-by: Simon Glass <s...@chromium.org> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
