From owner-freebsd-current@freebsd.org Sat Mar 24 23:29:33 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5EB2EF55F74 for ; Sat, 24 Mar 2018 23:29:33 +0000 (UTC) (envelope-from areilly@bigpond.net.au) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id E2F6C85E7F for ; Sat, 24 Mar 2018 23:29:32 +0000 (UTC) (envelope-from areilly@bigpond.net.au) Received: by mailman.ysv.freebsd.org (Postfix) id 98854F55F6F; Sat, 24 Mar 2018 23:29:32 +0000 (UTC) Delivered-To: current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 83159F55F6E for ; Sat, 24 Mar 2018 23:29:32 +0000 (UTC) (envelope-from areilly@bigpond.net.au) Received: from nsstlmta07p.bpe.bigpond.com (nsstlmta07p.bpe.bigpond.com [203.38.21.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "", Issuer "Openwave Messaging Inc." (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 6F2DE85E7D for ; Sat, 24 Mar 2018 23:29:29 +0000 (UTC) (envelope-from areilly@bigpond.net.au) Received: from smtp.telstra.com ([10.10.24.4]) by nsstlfep13p-svc.bpe.nexus.telstra.com.au with ESMTP id <20180324232212.HEVL18817.nsstlfep13p-svc.bpe.nexus.telstra.com.au@smtp.telstra.com>; Sun, 25 Mar 2018 10:22:12 +1100 X-RG-Spam: Unknown X-RazorGate-Vade: gggruggvucftvghtrhhoucdtuddrgedtgedrvdefgddujeehucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuuffpveftpgfvgffnuffvtfetnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpeffhffvuffkfhggtggujggfsehttdertddtredvnecuhfhrohhmpeetnhgurhgvficutfgvihhllhihuceorghrvghilhhlhiessghighhpohhnugdrnhgvthdrrghuqeenucfkphepuddvgedrudeltddrgedtrddukedvnecurfgrrhgrmhephhgvlhhopegkvghnrdgrtgdqrhdrnhhupdhinhgvthepuddvgedrudeltddrgedtrddukedvpdhmrghilhhfrhhomhepoegrrhgvihhllhihsegsihhgphhonhgurdhnvght X-RG-VS-CLASS: clean X-Authentication-Info: Submitted using ID areilly@bigpond.net.au Received: from Zen.ac-r.nu (124.190.40.182) by smtp.telstra.com (9.0.019.22-1) (authenticated as areilly@bigpond.net.au) id 5A204A962862D550; Sun, 25 Mar 2018 10:22:12 +1100 Date: Sun, 25 Mar 2018 10:22:06 +1100 From: Andrew Reilly To: Warner Losh Cc: FreeBSD Current Subject: Re: 12-Current panics on boot (didn't a week ago.) Message-ID: <20180324232206.GA2457@Zen.ac-r.nu> References: <20180324035653.GA3411@Zen.ac-r.nu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Mar 2018 23:29:33 -0000 So, r331464 crashes in the same place, on my system. r331064 still boots OK. I'll keep searching. One week ago there was a change to randomdev to poll for signals every so often, as a defence against very large reads. That wouldn't have introduced a race somewhere, or left things in an unexpected state, perhaps? That change (r331070) by cem@ is just a few revisions after the one that is working for me. I'll start looking there... Cheers, Andrew On Sun, Mar 25, 2018 at 07:49:17AM +1100, Andrew Reilly wrote: > Hi Warner, > > The breakage was in 331470, and at least one version earlier, that I updated past when it panicked. > > I'm guessing that kdb's inability to dump would be down to it not having found any disk devices yet, right? So yes, bisecting to narrow down the issue is probably the best bet. I'll try your r331464: if that works that leaves only four or five revisions. Of course the breakage could be hardware specific. > > Cheers, > -- > Andrew