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re: port-sparc/32052 (tsleep() does not work on SMP sparc while shutting down)
The following reply was made to PR port-sparc/32052; it has been noted by GNATS.
From: matthew green <mrg%eterna.com.au@localhost>
To: Hauke Fath <hauke%Espresso.Rhein-Neckar.DE@localhost>
Cc: port-sparc-maintainer%NetBSD.org@localhost, gnats-bugs%NetBSD.org@localhost
Subject: re: port-sparc/32052 (tsleep() does not work on SMP sparc while
Date: Wed, 02 Mar 2011 22:43:15 +1100
> At 10:48 Uhr +0000 1.3.2011, mrg%NetBSD.org@localhost wrote:
> >netbsd/sparc never called hardclock on non-boot cpus before semi-recent
> >times, and this was the source of some of the sparc smp problems for a
> >while. i wonder if this is the problem here. are you able to test
> >either a patched netbsd-5 or a -current kernel? i may also be able
> >to provide a patched netbsd-4 kernel. thanks.
> thanks for looking at the issue. It's been a while... I ended up getting an
> external wlan access point in place of the pcmcia card, and the machine has
> morphed into an SS20 in the meantime.
yeah - it has been a while... thank you for your patience :)
> I can drop in the nell, and try a -current kernel; in fact, I have a
> sort-of-current installation around from testing the waters, since it looks
> like netbsd-5 on sparc-mp is never going to happen, and things from a newer
> version of pf(4) to wapbl look tempting. Fine-grained locking changes have
> broken appletalk support on many ethernet interfaces, though - not le(4)
> but hme(4).
oh - the patches i'm talking about are the final smp stability changes
i've made in -current, backported to netbsd-5. once that pullup is
executed, netbsd-5 branch will be mostly stable for sparc. it has a
(soft) hang that i don't see on -current, but only after a really long
time of significant load...
> OTOH, I'd definitely be interested in netbsd-4 patches, since that would be
> more of a drop-in replacement, pf compatible and all. Plus, it's the last
> usable release on sparc-mp. Just tell me if the patches are much of an
let me see about porting just the hardclock change itself to netbsd-4.
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