From: Yasuhiro Kimura <y...@utahime.org> Subject: Re: Waiting for bufdaemon Date: Thu, 28 Jan 2021 05:02:42 +0900 (JST)
> It took for a while to investigate, but according to the result of > bisect following commit is the source of problem in my case. > > ---------------------------------------------------------------------- > commit 84eaf2ccc6a > Author: Konstantin Belousov <k...@freebsd.org> > Date: Mon Dec 21 19:02:31 2020 +0200 > > x86: stop punishing VMs with low priority for TSC timecounter > > I suspect that virtualization techniques improved from the time when we > have to effectively disable TSC use in VM. For instance, it was reported > (complained) in https://github.com/JuliaLang/julia/issues/38877 that > FreeBSD is groundlessly slow on AWS with some loads. > > Remove the check and start watching for complaints. > > Reviewed by: emaste, grehan > Discussed with: cperciva > Sponsored by: The FreeBSD Foundation > Differential Revision: https://reviews.freebsd.org/D27629 > ---------------------------------------------------------------------- > > I confirmed the problem still happens with 5c325977b11 but reverting > above commit fixes it. I submitted this problem to Bugzilla. Timeout of bufdaemon happens at shutdown time with -CURRENT amd64 and VirtulaBox VM https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253087 --- Yasuhiro Kimura _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
