You're probably using the wrong PAL code (ts_osfpal instead of
tsb_osfpal). I modified the latter to add different configuration
addresses that support more than 4 processors (the original limit of
the Tsunami platform).
Ali
On Jun 4, 2008, at 2:40 AM, Beckmann, Brad wrote:
Hi,
I’m encountering a repeated warning message from M5 and I was hoping
you could provide some detail of how serious of a warning message
this is. In particular, I’m running the Netperf stream workload
with Linux 2.6.22 and a drive system containing 5 processors. Soon
after starting the simulation, a continuous stream of “warn: clear
IPI for CPU=0, but NO IPI” warning messages are printed to the
screen. As you probably know, this message comes from the
clearIPI() function of tsunami_cchip.cc. This warning message only
occurs when the system is greater than 4 cpus. By calling the
remote kernel debugger from the user-level debugger on M5, I
obtained the following kernel call stack. However, I don’t think it
is very useful. It appears to be a simple delay (idle?) loop.
Could you please provide me some more information of what this
warning message means?
Thanks! I appreciate the help.
Brad
#0 0xfffffc00004edef4 in __delay (loops=Variable "loops" is not
available.
) at arch/alpha/lib/udelay.c:25
#1 0xfffffc000031c13c in __cpu_up (cpu=Variable "cpu" is not
available.
) at arch/alpha/kernel/smp.c:397
#2 0xfffffc00007b1838 in cpu_up (cpu=4) at kernel/cpu.c:232
#3 0xfffffc00007a2eb4 in kernel_init (unused=Variable "unused" is
not available.
) at init/main.c:393
#4 0xfffffc0000311508 in kernel_thread ()
#5 0xfffffc0000311508 in kernel_thread ()
Previous frame identical to this frame (corrupt stack?)
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