Re: CPUFLAGS for IP32

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Hello,

On Aug 15, 2008, at 11:40 AM, Izumi Tsutsui wrote:

> In article <[email protected]>
> I wrote:
>
>> with revised one:
>> ---
>> # ttcp -ts -n 10000 192.168.20.1
>  :
>> ttcp-t: 81920000 bytes in 8.03 real seconds = 9957.48 KB/sec +++
>> ttcp-t: 10000 I/O calls, msec/call = 0.82, calls/sec = 1244.69
>> ttcp-t: 0.0user 6.7sys 0:08real 84% 0i+0d 0maxrss 0+2pf -1+49csw
>
> Note these kernels have the following CPUFLAGS:
> ---
> makeoptions	CPUFLAGS="-march=mips3 -mabi=32 -mtune=vr5000"

I've found something odd - I used to build my kernels with - 
march=mips3 -mabi=32 -mtune=mips3 -pipe, until a few weeks ago that  
worked just fine but then I got odd panics from gzip when doing tar  
xzf <whatever>:
trap: TLB miss ( load or instr. fetch )
status=0xff03 cause=0x08 vaddr=0x30
uvm_load
pipe_write
dowritefile
sys_write
syscall_plain
mips3_SystemCall

On a hunch I removed -march and -mtune parameters, rebuilt the kernel  
and it works fine. Now I'm wondering if there was some messed up .o  
file or if any of the CPU specific options triggered some compiler bug.

have fun
Michael

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