Date: Sun, 29 Jul 2018 08:35:44 -0600 From: Ian Lepore <ian@freebsd.org> To: John-Mark Gurney <jmg@funkthat.com>, freebsd-arm@FreeBSD.org Subject: Re: sx_sleep not waking up when timo expires Message-ID: <1532874944.61594.110.camel@freebsd.org> In-Reply-To: <20180729010157.GC2884@funkthat.com> References: <20180729010157.GC2884@funkthat.com>
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On Sat, 2018-07-28 at 18:01 -0700, John-Mark Gurney wrote: > I recently upgraded my router to an Pine A64-LTS board, and have hit > the same issue as PR 222126[1]. The solution at the end does not work > for me, as I do not have that line in my loader.conf: > kern.timecounter.smp_tsc_adjust=1 > > I have verified that the wake up does not happen, as I used a dtrace > script to verify that pf_purge_expired_states is called or not called.. > When I change the timeout, pf will kick the thread and get things > running again, but it has stopped a couple times later... > > I'm running a recent SNAPSHOT: > FreeBSD gate2.funkthat.com 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r336134: Mon Jul 9 19:20:11 UTC 2018 root@releng3.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64 > > This is likely reproducable by just starting pf, even in a pass all > mode, and watching for when the function stops getting called... I'll > see if I can't get an extermely minimal config to reproduce it. > > Any suggestions? > > [1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222126 > Sounds like https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229644 which has some patches attached which reduce but don't quite eliminate the occurrances, so nothing has been committed yet. I just ordered a SOPINE board so I can do some hands-on debugging. -- Ian
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