Re: MULTIPROCESSOR enabled by default on all Alpha kernels
Jason Thorpe <[email protected]>
| Newsgroups | gmane.os.netbsd.ports.alpha |
|---|---|
| Message-ID | <[email protected]> |
I’m willing to help resolve any bugs you uncover! -- thorpej Sent from my iPhone. > On Sep 20, 2020, at 12:51 PM, Dustin Marquess <[email protected]> wrote: > > > My only SMP Alpha is a CS20 running DS20L firmware. I know there were issues at one time with the built-in NIC and SCSI controllers. Did those ever get resolved? If so, I’ll get it racked and powered up. > > I had swapped the SCSI controller out with one for a DS20L to run Tru64 on it at one time, but I still have the original (if I remember correctly, NetBSD didn’t like the DS20L one). I know one was Adaptec, I forget what the other one was. > > -Dustin >> On Sep 19, 2020, 11:53 AM -0500, Jason Thorpe <[email protected]>, wrote: >> >> >>> On Sep 19, 2020, at 9:39 AM, Izumi Tsutsui <[email protected]> wrote: >>> >>>> The system has been very stable for me, and is feeling much snappier. >>> >>> I'm afraid if timecounter(9) using multiple PCC processor clocks >>> works properly. >> >> Yes, I think there are some known issues. Taylor (CC'd) also had some thoughts on it? >> >>> >>> I've committed it back in 2007 to switch alpha port to MI timecounter(9), >>> https://mail-index.netbsd.org/source-changes/2007/07/21/0012.html >>> https://mail-index.netbsd.org/source-changes/2007/07/21/0013.html >>> but IIRC ad@ pointed out that x86 TSC implementation (that alpha's >>> PCC implementation was based on) was problematic. >>> >>> There was also a report that sleep(1) or TOD etc. didn't work >>> as expected if timecounter(9) was pcc (and worked fine with >>> clockinterrupt). >>> >>> --- >>> Izumi Tsutsui >> >> -- thorpej >>