Ralf Baechle 写道:
On Fri, May 14, 2010 at 06:29:07PM +0800, Yang Shi wrote:
I'm running 2.6.34-rc7 mainline kernel on SB1250 (Rev B2) board. And, I
use the default sb1250 kernel config (sb1250-swarm_defconfig). So, 64
bit kernel is used. During kernel loading module got bus error, see
below log:
Whops. Fixes which were supposed to handle exactly this problem went
upstream for 2.6.34-rc3 and were tested successfully by others on their
systems.
I wonder if in arch/mips/sibyte/sb1250/setup.c you can instrument
the function sb1250_m3_workaround_needed() and print the values of
soc_type, soc_pass and the retun value of that function. Then let's take
it from there.
See below log:
Broadcom SiByte BCM1250 B2 @ 800 MHz (SB1 rev 2)
And, soc_typs is 0x0 and soc_pass is 0x11, sb1250_m3_workaround_needed
should return 1. So, tlb refill handler should go the m3 workaround code
path.
Thanks,
Yang
Ralf
