Marcelo Tosatti wrote: > Hum, > > The machine seems to be acting strange, but it boots normally > and applications run (more importantly there is no TLB entry > which could cause dcbst fault strangeness). > > Some "dd" hangs till I press "ctrl+c", others just work. Really strange. > > G'night, I'll look at it tomorrow. > > [root@(none) /]# time dd if=/dev/zero of=file bs=16k count=400 > 400+0 records in > 400+0 records out > > > real 0m4.261s > user 0m0.040s > sys 0m1.240s > [root@(none) /]# time dd if=/dev/zero of=file bs=32k count=400 > > > > > real 0m50.369s > user 0m0.040s > sys 0m1.680s (ctrl+c) > [root@(none) /]# > >
I can confirm that the patch works. I no longer need the tlbie in update_mmu_cache. /tmp # time dd if=/dev/zero of=file bs=16k count=400 400+0 records in 400+0 records out real 0m 0.55s user 0m 0.01s sys 0m 0.52s /tmp is tmpfs Well done Marcelo! Regards Pantelis P.S. CPU errata perhaps?
