Bug 16070 – serial console won't work with xfs-sources-2.4.20_pre4/6

• Status: RESOLVED LATER
• Product: Gentoo Linux

[Description YAMAKURA Makoto 2003-02-20 06:10:15 UTC]

There is a curious condition.

If I set the value of 'processor family' as 'AthlonXP(gcc>31)' 
or 'Athlon/Duron/K7(>gcc31)', serial console works well.
But when I set 'processor family' as '386','486','586','Pentium-Classic' 
or 'Pentium-MMX(gcc>31)', it won't work anymore.
I have not tested other processor families.

I can use serial device as terminal (using agetty) in any case.

vanilla-sources-2.4.20 works fine with '386' option.

Thanks,

Reproducible: Always
Steps to Reproduce:
1. compile a kernel
2. add kernel option such as "console=ttyS0,9600n8"
3. boot

Actual Results:  
kernel messages does not appear in the serial line

[Comment 1 YAMAKURA Makoto 2003-02-20 06:17:07 UTC]

Created attachment 8529 [details]
sample kernel config for xfs-sources-2.4.20_pre

this config works fine.
changeing 'processor family' to other (such as 386) broke serial console.

[Comment 2 Bob Johnson (RETIRED) 2003-02-21 15:41:54 UTC]

xfs patch contains kdb "fixes" from sgi.
they seem to think its gcc 3.2 causing your problem.
Ill look at taking the kdb changes out on next version