From nobody Sun Sep 26 01:23:47 2021 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 6BC6717DCDFE for ; Sun, 26 Sep 2021 01:24:00 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from www121.sakura.ne.jp (www121.sakura.ne.jp [153.125.133.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4HH7Mg0g86z4T9p for ; Sun, 26 Sep 2021 01:23:58 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from kalamity.joker.local (123-48-130-181.area1b.commufa.jp [123.48.130.181]) (authenticated bits=0) by www121.sakura.ne.jp (8.16.1/8.16.1/[SAKURA-WEB]/20201212) with ESMTPA id 18Q1NlYi059123 for ; Sun, 26 Sep 2021 10:23:48 +0900 (JST) (envelope-from junchoon@dec.sakura.ne.jp) Date: Sun, 26 Sep 2021 10:23:47 +0900 From: Tomoaki AOKI To: freebsd-current@freebsd.org Subject: Re: latest current fails to boot. Message-Id: <20210926102347.c538169dddec5f2ff50d8e4c@dec.sakura.ne.jp> In-Reply-To: <36221848-2b85-4a60-fd27-d4bf83d4571e@FreeBSD.org> References: <20210922230905.79a494a4ddbecd7d6b8179ea@dec.sakura.ne.jp> <36221848-2b85-4a60-fd27-d4bf83d4571e@FreeBSD.org> Reply-To: junchoon@dec.sakura.ne.jp Organization: Junchoon corps X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd13.0) List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4HH7Mg0g86z4T9p X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of junchoon@dec.sakura.ne.jp has no SPF policy when checking 153.125.133.21) smtp.mailfrom=junchoon@dec.sakura.ne.jp X-Spamd-Result: default: False [-1.22 / 15.00]; HAS_REPLYTO(0.00)[junchoon@dec.sakura.ne.jp]; RCVD_VIA_SMTP_AUTH(0.00)[]; MV_CASE(0.50)[]; REPLYTO_ADDR_EQ_FROM(0.00)[]; TO_DN_NONE(0.00)[]; HAS_ORG_HEADER(0.00)[]; NEURAL_HAM_SHORT(-0.99)[-0.985]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:7684, ipnet:153.125.128.0/18, country:JP]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[123.48.130.181:received]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.99)[-0.988]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-0.65)[-0.651]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1]; DMARC_NA(0.00)[sakura.ne.jp]; R_SPF_NA(0.00)[no SPF record]; RCVD_COUNT_TWO(0.00)[2] X-ThisMailContainsUnwantedMimeParts: N On Sat, 25 Sep 2021 23:46:48 +0300 Andriy Gapon wrote: > On 25/09/2021 19:10, Johan Hendriks wrote: > > For me i had kern.sched.steal_thresh=1 in my sysctl as i use this machine mainly > > for tests and so on. > > By removing this sysctl the system boots again. I already used the latest > > snapshot and that booted fine. > > Might have something to do with > https://cgit.FreeBSD.org/src/commit/?id=bd84094a51c4648a7c97ececdaccfb30bc832096 > > -- > Andriy Gapon Commenting out kern.sched.steal_thresh=0 line in /etc/sysctl.conf let me boot fine. No other setting of kern.sched.* affected. I've introduced the setting by reading posts [1] and [2] on freebsd-current ML. Thanks for the hint, Jan! Andriy, I took time to bi-sect and determined the commit triggered this issue was e745d729be60. [3] Worked OK even with kern.sched.steal_thresh=0 at a342ecd326ee. [4] Tested commits are as below (tested order, not using git bisect): 0b79a76f8487: [Known to be OK] 8db1669959ce: [Problematic rev I first encountered] 0f6829488ef3: OK df8dd6025af8: OK 4f917847c903: OK e745d729be60: NG! bd84094a51c4: OK a342ecd326ee: OK Konstantin, no more chance to get into ddb on hang up until my previous post. ^T never worked on hang up situation. Sory. But does info above help? [1] https://lists.freebsd.org/pipermail/freebsd-current/2021-March/079237.html [2] https://lists.freebsd.org/pipermail/freebsd-current/2021-March/079240.html [3] https://lists.freebsd.org/pipermail/dev-commits-src-main/2021-September/007513.html [4] https://lists.freebsd.org/pipermail/dev-commits-src-main/2021-September/007512.html -- Tomoaki AOKI