From nobody Tue Aug 15 16:04:42 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 4RQGLP07C8z4q4hW for ; Tue, 15 Aug 2023 16:04:45 +0000 (UTC) (envelope-from des@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (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 4RQGLN6gGHz4RQH for ; Tue, 15 Aug 2023 16:04:44 +0000 (UTC) (envelope-from des@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1692115484; 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=YBr0aubhbdJGIpP2Azyqc7rfARZ1OUuac9Ek9/AupRY=; b=rMrKmShbgAj+7nqfH+bOPZi26jKvSfPmamLY1rpNyzJTnWQJphou0Y7ITMTzdJjslN9wf0 L/RYkEOoyxCYkLCwJ0u+0/f4gpmjEMuxICas0TcPpf8VulG77LwhvWtlyDcZYHtjFnTYmm jsJl7qepNvbD4s7iPqgL7lNCk0T21ThBrkA0g56hwz/9el24G5Pa2eP23533jFQ8xvYVta 4Xvr1z4IP4ZEf43LI0CYssX4u0JIPZiaAsczQ7obhcxZ3xVgTriMo5+XsKOT0Db9HPN39P C6bTzWTg9SpgGtcIzgoGpbrL6Cua0MgdbONfI3/uLeWx+icmZzRqh1CzdKTYkg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1692115484; 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=YBr0aubhbdJGIpP2Azyqc7rfARZ1OUuac9Ek9/AupRY=; b=mRI/JJLReKC16B679MfJppdgfpy/Ot2V9PQE0VYzrK/HrOVdUwlJnFfaTakrTCHnLTSWtZ jAsfXQcS9e/O1HB3jq46UYQetgskgce+jhiITCaaf2n5wnyfXxS1IkKn8JUBJ90IG+c8Gr fKRlX8FrjJX8ZHzAdp8eTxK0S9tq4YW7g2LXSqM3wXlUnEEEWS5Rx/wSKvhnOKGIG2GiV3 5gvN/qKn3qsge1i1pofAs97pXaYDVThfqFM0dmbD3tw3Ig7kjOE5ke0psx/EnnH3iDaCKZ fSvoqj3gYYyRRj8qBk3nejz9Tm9jdBqGpJmnir5WTBI+SU6ijCCUcXeokp8VFQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1692115484; a=rsa-sha256; cv=none; b=ZK8xoTIHE3Ly0NEjRGODXzpFmM7+faZ/cTshfSCcDvaK0YtSclpCVjPSDhU554i+avAb/F PfGyIDlv/9NuEChmguUbC66laXvXjHeIF5GAEnRHl3jZepp96pCLJqW6NI9mvjBOsVe0IA eOvAQrcPpI8KB3QBdHNDt5NcFa+4O16kDEyzv5nLJz6LEnj01dJxY4Obxwv14TzhjGJkt5 Xqow7+faoBd/D6fFCeM6TVqI1a6v23VeURr6wMQzcPasjXAhrv2UiC5lNEMXG7EdUOgm4q iuzUS49hrTa2BhiMbkF1hkLS/EoBURCLeXHAHBHNj375JPmXUHOyo8uSWqJKXA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from ltc.des.no (unknown [IPv6:2001:4647:d671:0:36e8:94ff:feca:9834]) (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 4RQGLN4v6MztQB for ; Tue, 15 Aug 2023 16:04:44 +0000 (UTC) (envelope-from des@freebsd.org) Received: by ltc.des.no (Postfix, from userid 1001) id 5302418469; Tue, 15 Aug 2023 18:04:42 +0200 (CEST) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: current@freebsd.org Subject: Re: ZFS deadlock in 14 In-Reply-To: <86a5utrafp.fsf@ltc.des.no> ("Dag-Erling =?utf-8?Q?Sm=C3=B8rg?= =?utf-8?Q?rav=22's?= message of "Mon, 14 Aug 2023 16:00:10 +0200") References: <86leeltqcb.fsf@ltc.des.no> <86h6p4s64h.fsf@ltc.des.no> <86a5utrafp.fsf@ltc.des.no> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (berkeley-unix) Date: Tue, 15 Aug 2023 18:04:42 +0200 Message-ID: <86350kqokl.fsf@ltc.des.no> 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-Transfer-Encoding: quoted-printable Dag-Erling Sm=C3=B8rgrav writes: > 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. I wrote a script that creates multiple filesystems, snapshots them, populates them and rolls them back continuously but so far I have not succeeded in triggering the deadlock without poudriere. I guess my script doesn't consume enough vnodes. Also, 9228ac3a69c4 (9 August, last commit before the contrib/googletest breakage) still deadlocks. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@FreeBSD.org