On 8/26/20 9:53 AM, Chris Johns wrote: >> I'm not able to run hello.exe on real >> hardware PC w/o UART1 presented/connected and get its expected "Hello" >> output to the VGA/GPU console. I think RTEMS still pushed hello message >> down to the UART1. > > I just want to understand what UART1 is. Is it COM1? >
Yes, UART1 means COM1 here. Anyway, I must admit I've had some bad-luck here. I've tested or started by testing on two old ThinkPads available here: T500 and T400 and today I've just found out those are RTEMS-broken machines. Today I've widened my testing and tested: ASRock B450/Ryzen 3600/16GB: - hello.exe -- WORKS - ticker.exe -- WORKS - hello.exe SMP -- BROKEN - ticker.exe SMP -- BROKEN Supermicro X9SRA/Xeon E5-2620/64GB: - hello.exe -- WORKS - ticker.exe -- WORKS - hello.exe SMP -- BROKEN - ticker.exe SMP -- BROKEN IBM ThinkPad T22/PIII/512MB: - hello.exe -- WORKS - ticker.exe -- WORKS - hello.exe SMP -- BROKEN - ticker.exe SMP -- BROKEN Fujitsu/Kontron D3598-B1x/Xeon W-2265/128GB: - hello.exe -- WORKS - ticker.exe -- WORKS - hello.exe SMP -- WORKS (* note: number of CPUs reported is number of cores available, HT is misdetected/not-supported by RTEMS) - ticker.exe SMP -- WORKS (* note: like above) And T400/T500: - hello.exe -- BROKEN - ticker.exe -- BROKEN - hello.exe SMP -- BROKEN - ticker.exe SMP -- BROKEN So as you can see, a bit of bad luck. Also generally speaking SMP enabled pc386 is a bit fragile since it works only on Kontron/Fujitsu (as HW) and then only in Qemu -- and up to just 16 number of CPUs -- in Qemu. I don't have hardware available with more CPUs and my W-2265 with HT enabled gives 24 virtual cores, but RTEMS still sees just 12 real cores -- see note above. So this way I continue with my pc386 docs tweaks... Karel PS: T22 above is the same machine as reported working here: https://devel.rtems.org/wiki/TBR/BSP/Pc386 -- note from September 1 2005. _______________________________________________ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
