Hi Atsushi,
I tried out your patch on the SWARM SMP and it works.
thanks,
Manish Lachwani
Atsushi Nemoto wrote:
On Thu, 26 Oct 2006 00:42:16 -0700 (PDT), Manish Lachwani <m_lachwani@xxxxxxxxx> wrote:
It could be that I am seeing a similar issue on the
SWARM board (sb1250) as well. Your patch removed the
shifts for mip_hpt_frequency from
arch/mips/sibyte/sb1250/time.c and in the
sb1250_hpt_read(). The Sibyte HPT is 1 Mhz. However,
when I added those shifts back, I did not see any
issues with the system clock. I could possibly try out
your patch with lower clocksource shift values and see
if the system clock is still wrong.
I just sent the patch. Please try it.
Btw, the clocksource changes seem to work well on the
BCM 1480 based board.
Thanks, good news!
As Ralf pointed out, current code still problematic on some SMP
system, but I think IP27, SB1250, BCM1480 should be OK now while their
mips_hpt_read are not using per-CPU cp0 timers.
---
Atsushi Nemoto
