Date: Thu, 14 Dec 2017 21:36:49 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Alexey Dokuchaev <danfe@FreeBSD.org> Cc: rgrimes@freebsd.org, Warner Losh <imp@freebsd.org>, svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r326809 - head/sys/dev/cardbus Message-ID: <5A328C81.4040501@grosbein.net> In-Reply-To: <20171214133854.GB51526@FreeBSD.org> References: <201712131338.vBDDcHCM091865@pdx.rh.CN85.dnsmgr.net> <5A3167E1.2000201@grosbein.net> <20171213180801.GA28514@FreeBSD.org> <5A316E7B.8030504@grosbein.net> <20171213182452.GA51526@FreeBSD.org> <5A318150.1000601@grosbein.net> <20171214133854.GB51526@FreeBSD.org>
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On 14.12.2017 20:38, Alexey Dokuchaev wrote: > On Thu, Dec 14, 2017 at 02:36:48AM +0700, Eugene Grosbein wrote: >> 14.12.2017 1:24, Alexey Dokuchaev wrote: >> ... >>> One does not tweak FreeBSD, it just works. (tm) >> >> Hmm. Do you really think so? > > I do. > >> I can assure you this is not true. There are numerous ways to take >> down untweaked FreeBSD system. > > This means that there are bugs that should be fixed. Sure. > Do you have PR numbers? To start with: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224218 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223824 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223803 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204700 Etc., but I should not recite our Bugzilla here. And that hilaroius "75-frames" NFS-related panic requiring tweaks: https://lists.freebsd.org/pipermail/freebsd-stable/2017-July/087477.html There are problems other kinds of problems, that is: - a need to increase kern.cam.boot_delay/kern.cam.scsi_delay (or similar newer tweaks) to make boot happen; - firewall_nat_enable="YES" with GENERIC kernel requires manual loading of modules like alias_ftp.ko or alias_pptp.ko or else NAT would be useless for such transit traffic; - net.isr.maxthreads may be erronously set to 1 by default affecting performance and requiring manual tweak; - zfsloader(8) failing to find any ZFS pool after zfsboot(8) successfully loaded and started zfsload(8) from zpool (PR pending, need to collect more info) - net.graph.maxdata/net.graph.maxalloc do not auto-scale resulting in DoS and lots of other problems within NETGRAPH... I use FreeBSD in many diverse environments and if I strain my memory, I can remember more. (NFS itself is full of surprises...)
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