From nobody Mon Aug 14 14:00:10 2023
X-Original-To: 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 4RPbd91G4Kz4qXGJ
	for <current@mlmmj.nyi.freebsd.org>; Mon, 14 Aug 2023 14:00:13 +0000 (UTC)
	(envelope-from des@freebsd.org)
Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83])
	(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 (4096 bits) client-digest SHA256)
	(Client CN "smtp.freebsd.org", Issuer "R3" (verified OK))
	by mx1.freebsd.org (Postfix) with ESMTPS id 4RPbd90Z5sz3K3B
	for <current@freebsd.org>; Mon, 14 Aug 2023 14:00:13 +0000 (UTC)
	(envelope-from des@freebsd.org)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim;
	t=1692021613;
	h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
	 to:to:cc:mime-version:mime-version:content-type:content-type:
	 content-transfer-encoding:content-transfer-encoding:
	 in-reply-to:in-reply-to:references:references;
	bh=fJAPwTomrKzf7EnmPDSWek5AIc/qLOSr4EPqA44vRhQ=;
	b=OiDwEU1qGdX674Wjt4TiZ655AFPXJr1cYH6rqUhVbnlIWvvUoOwUA10H3jktBjHZI7e9LW
	wooTKkfjOXCbz4b69PDA1TuOjm4al+LsimCe6wEbWHminixZ6j+s9O8FMF+SE3wRtVTYW8
	IX3akRozFj86WbeKe2YJ8UR+uc4fSCMTiS5AM7ZSxod5HhloN13ZxXiP99tO/0rBoH76QM
	L348pxFtInSKWFW26GLjIIoDvP8LpTT0GN++cARg4XrOktP+S66az/eguTOoIbfHnyYYEp
	ZN0wI0HsafHUUtDQsxDYjeoWQ9ZSDuO71dshfqEW97Jga561zq5WytWE8BXPzg==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org;
	s=dkim; t=1692021613;
	h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
	 to:to:cc:mime-version:mime-version:content-type:content-type:
	 content-transfer-encoding:content-transfer-encoding:
	 in-reply-to:in-reply-to:references:references;
	bh=fJAPwTomrKzf7EnmPDSWek5AIc/qLOSr4EPqA44vRhQ=;
	b=THBYDyEI1wpZnMZOxNL65x1TLZWJ2VLd+1zi1BUU9KA9nSxHM1sW4cvCqV673EnoKWWDEt
	0V9OXq0l0Aqp2ZCa8C2trZdmoiqu0vm7IG8oONVs4eDw7VejDsTaTV2LUc7bekut1lgsnq
	4qerj3wc9Uj0eVCOR63bj40aA9+1+ZzChe4XJOrYw4gMgRJiQKXyl9ItplBa65AkC7oZIf
	C6BWMfuUYc+Yw7LsVb1e1X8RYvcCwfXgHXlWL/Ei3JoPRmhQt/kZ7LaOd4VBv/B7TNR41D
	IMJsFU/HxtPl5Uva4cvgifaFSoX6MH/rDP8iXLSr8f6v8MqTdeGM5dbiYh8c0A==
ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1692021613; a=rsa-sha256; cv=none;
	b=PbpX1YBlevAg6zp8KAP1ezKPnKuSUiM9YjV9eFIpTH/lBs3clwIbvLiZ94x/B+SKDss8m/
	VhcBYeNeHFaV18FU71oyhZNZNitqLprgbwHsCl2vky2AjUuKc903NwwMH5zoKx/32PWllG
	IWCJ2HgpJEudq/UEPDo9uSO2Pkkjr+qjmiCnPSNHUHjpEg/hguiOXlm/TjX5saOyvv1TiB
	TejrrmF2Hyz/8xjzAb+fYmEIcpY9KUAWH/Jwsk73NNIWvDpgQ3iFBbC+0fuJFMgQ3rae9M
	5H8e1dQRcO+u5c8itB+6bEQPx5bKuv+KYTnyY22qKJgTMYp+9AHcWd6FhrBgdA==
ARC-Authentication-Results: i=1;
	mx1.freebsd.org;
	none
Received: from ltc.des.no (ti0187a400-1976.bb.online.no [85.166.95.197])
	(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)
	(Authenticated sender: des)
	by smtp.freebsd.org (Postfix) with ESMTPSA id 4RPbd85kMtz1MbB
	for <current@freebsd.org>; Mon, 14 Aug 2023 14:00:12 +0000 (UTC)
	(envelope-from des@freebsd.org)
Received: by ltc.des.no (Postfix, from userid 1001)
	id 5AD13180DC; Mon, 14 Aug 2023 16:00:10 +0200 (CEST)
From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@FreeBSD.org>
To: current@freebsd.org
Subject: Re: ZFS deadlock in 14
In-Reply-To: <86h6p4s64h.fsf@ltc.des.no> ("Dag-Erling =?utf-8?Q?Sm=C3=B8rg?=
 =?utf-8?Q?rav=22's?= message of
	"Sat, 12 Aug 2023 16:11:10 +0200")
References: <86leeltqcb.fsf@ltc.des.no> <86h6p4s64h.fsf@ltc.des.no>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (berkeley-unix)
Date: Mon, 14 Aug 2023 16:00:10 +0200
Message-ID: <86a5utrafp.fsf@ltc.des.no>
List-Id: Discussions about the use of FreeBSD-current <freebsd-current.freebsd.org>
List-Archive: https://lists.freebsd.org/archives/freebsd-current
List-Help: <mailto:freebsd-current+help@freebsd.org>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Subscribe: <mailto:freebsd-current+subscribe@freebsd.org>
List-Unsubscribe: <mailto:freebsd-current+unsubscribe@freebsd.org>
Sender: owner-freebsd-current@freebsd.org
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

Dag-Erling Sm=C3=B8rgrav <des@FreeBSD.org> writes:
> Trying to narrow this range down, I did not get a deadlock with
> 4e8d558c9d1c (10 June) but I did with b7198dcfc039 (16 June) [...]
> Perhaps I should try 4e8d558c9d1c again.

I managed to geat a deadlock with 4e8d558c9d1c.  Its predecessor
5ca7f02946 appears to be working.  I'm going to try to come up with a
more efficient way to reproduce the deadlock than running poudriere.

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@FreeBSD.org