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
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.
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