From nobody Sun Nov 16 15:43:54 2025 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 4d8Zrn0KL1z6Gcn1; Sun, 16 Nov 2025 15:42:49 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (www.zefox.net [50.1.20.27]) (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-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "pelorus.zefox.org", Issuer "pelorus.zefox.org" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4d8Zrm2hHWz3flq; Sun, 16 Nov 2025 15:42:48 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Authentication-Results: mx1.freebsd.org; none Received: from www.zefox.net (localhost [127.0.0.1]) by www.zefox.net (8.18.1/8.18.1) with ESMTPS id 5AGFhtcb048339 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Sun, 16 Nov 2025 07:43:55 -0800 (PST) (envelope-from fbsd@www.zefox.net) Received: (from fbsd@localhost) by www.zefox.net (8.18.1/8.18.1/Submit) id 5AGFhsmo048338; Sun, 16 Nov 2025 07:43:54 -0800 (PST) (envelope-from fbsd) Date: Sun, 16 Nov 2025 07:43:54 -0800 From: bob prohaska To: Warner Losh Cc: "Herbert J. Skuhra" , freebsd-arm@freebsd.org, freebsd-current@freebsd.org Subject: Re: Still seeing Failed assertion: "p[i] == 0" on armv7 buildworld Message-ID: References: <4957be52-e57f-4f5f-9626-d0f706480fe1@FreeBSD.org> <87ldk9f4tt.wl-herbert@gojira.at> 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=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Queue-Id: 4d8Zrm2hHWz3flq On Sat, Nov 15, 2025 at 04:08:50PM -0700, Warner Losh wrote: > On Fri, Nov 14, 2025 at 12:31 AM Herbert J. Skuhra > wrote: > > > On Fri, 14 Nov 2025 04:44:55 +0100, bob prohaska wrote: > > > > > > On Thu, Nov 13, 2025 at 09:11:51AM +0100, Ronald Klop wrote: > > > > Op 12-11-2025 om 23:25 schreef bob prohaska: > > > > > For lack of any better ideas I've collected some of the assertion > > failure > > > > > /tmp files by host at > > > > > http://www.zefox.net/~fbsd/assertion_failure/ > > > > > > > > > > Thanks for reading, > > > > > > > > > > bob prohaska > > > > > > > > > > > > > > > > > > A really uneducated guess, but might the update of jemalloc [1] have > > introduced some subtle issues on armv7? > > > > You can try reverting: > > https://cgit.freebsd.org/src/commit/?id=c43cad87172039ccf38172129c79755ea79e6102 > > . > > > > > > > What is the required syntax? Trying a simple > > > > > > root@generic:/usr/src # git revert -m 1 > > c43cad87172039ccf38172129c79755ea79e > > > generated a torrent of conflict reports > > > The source tree is expendable with no valued customizations. > > > > Try: > > > > git revert -n -m 1 8ebb3de0c9dfb1a15bf24dcb0ca65cc91e7ad0e8 > > git revert -n -m 1 edf9a2fae94a4b0ffa11d40ce52a48a609da9353 > > git revert -n -m 1 c43cad87172039ccf38172129c79755ea79e6102 > > > > Do you have to do all three? I'd have thought only the first one would be > needed. Necessary or not, it seems to have worked. No errors were reported and buildworld/kernel has run successfully on two of three Pi2's. One of them has rebooted and run an incremental buildworld using its new kernel and world. Next step is to run make cleandir twice on that machine and try a clean-start buildworld/kernel. Those results will take a few days. In the meantime, is there any explicit test to see if the reversion worked as expected? Searching for null (no error) results is slow. For example, Peter Holm's stress2 suite found lots of mischief in years gone by, might it be applied to this sort of problem? Thanks to you and everybody else for your help! bob prohaska