> -----Original Message----- > From: H. Peter Anvin [mailto:[email protected]] > Sent: Tuesday, March 05, 2013 3:58 PM > To: Dave Hansen > Cc: Tetsuo Handa; [email protected]; [email protected]; Yu, > Fenghua > Subject: Re: [3.9-rc1 x86] Bug in ioremap code? > > Fenghua, > > Could you look at this thread and see if you can see what the problem > is? > > -hpa > > On 03/05/2013 03:46 PM, Dave Hansen wrote: > > Not sure if it's related by 3.9-rc1 gets in to a reboot loop for me. > I > > assume it's triple-faulting. The last line on the console I see is: > > > > [ 0.085702] SMP alternatives: lockdep: fixing up alternatives > > [ 0.086859] smpboot: Booting Node 0, Processors [ 0.086859] > > smpboot: Booting Node 0, Processors #1 OK > > #1 OK > > > > I bisected it down to the neighborhood of c47f39e. After that, I get > > some compile errors: > > > >> arch/x86/built-in.o: In function `generic_load_microcode': > >> microcode_intel.c:(.text+0x28195): undefined reference to > `microcode_sanity_check' > >> microcode_intel.c:(.text+0x281ab): undefined reference to > `get_matching_microcode'
The bisect warnings are because the early load microcode patchset doesn't separate patches right for bisect. > > > > Turning off CONFIG_MICROCODE: Turning off CONFIG_MICROCODE should not compile the microcode code including early loading microcode code. With this configuration, microcode code should not be in debugging scope. > > > > -CONFIG_MICROCODE=y > > -CONFIG_MICROCODE_INTEL=y > > -# CONFIG_MICROCODE_AMD is not set > > -CONFIG_MICROCODE_OLD_INTERFACE=y > > -CONFIG_MICROCODE_INTEL_LIB=y > > -CONFIG_MICROCODE_INTEL_EARLY=y > > -CONFIG_MICROCODE_EARLY=y > > +# CONFIG_MICROCODE is not set > > > > lets it boot again and fixes those compile errors. This is with this > > config: > > > > http://i-love.sakura.ne.jp/tmp/config-3.9-rc1 > > > > running under a kvm guest: > > > > qemu-system-x86_64 -append 'earlyprintk=ttyS0,115200,keep > > console=ttyS0,115200 nmi_watchdog=0 root=/dev/sda1 bootmem_debug' > > -kernel vmlinuz -usbdevice tablet -vnc :1 -net user -net > > nic,model=e1000 -hda sarge-amd64-runme-1G.img -m 10240 -smp 2 > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
