On 2017.09.09 at 12:18 +0200, Borislav Petkov wrote: > On Sat, Sep 09, 2017 at 08:39:08AM +0200, Markus Trippelsdorf wrote: > > Unfortunately the machine hangs in the BIOS after the first warm-reset. > > Probably when it encounters an MCE it doesn't expect. I have to > > warm-reset a second time to get to the boot-loader. So it is impossible > > for me to see any possible MCE. > > Ok, let's try to disable the syncflood before the test. As root: > > # V=$(setpci -s 18.3 0x44.l) > # echo $V
4a70005c > # V=$(printf "0x%x" $((0x$V & ~(1 << 21)))) > # setpci -s 18.3 0x44.l=$V > # echo $V 0x4a50005c > I've added the echo $V so that you can paste them as a reply so that I > can see their values. > > And then run the triggering sequence again, better not on an X terminal > but in the text console to see any MCEs when it freezes. I remember you > saying that you don't have serial connected to it so catching the MCE > would need more staring :) It doesn't work. Compiling in a text console just freezes the machine before any MCE gets printed. -- Markus
