Mel Flynn wrote: > On Wednesday 02 September 2009 16:51:35 Alexander Motin wrote: > >> For maximum linear I/O performance you may want to build kernel with >> options MAXPHYS=(1024*1024) > > I've found that just doubling the default MAXPHYS already panics-on-boot a > 1.5GB i386 system. Is there any reasonable conversion table for MAXPHYS to > physical memory, since various memory related kernel setups are derived from > or calculated with MAXPHYS? What especially your panic was about? It could be bug in ATA(4) or some other code, that does not handle MAXPHYS correctly. I don't think that you could reach memory limit during simple system boot because of that. I am successfully running my testing Pentium-75 with 64MB RAM with 1MB MAXPHYS. Could you show your panic message? -- Alexander MotinReceived on Wed Sep 02 2009 - 13:47:03 UTC
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