From owner-freebsd-fs@freebsd.org Tue Aug 29 08:58:05 2017 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1D0A6DD3627 for ; Tue, 29 Aug 2017 08:58:05 +0000 (UTC) (envelope-from Nikolaus@rath.org) Received: from out2-smtp.messagingengine.com (out2-smtp.messagingengine.com [66.111.4.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E512F7D453 for ; Tue, 29 Aug 2017 08:58:03 +0000 (UTC) (envelope-from Nikolaus@rath.org) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id A5EC220DD5 for ; Tue, 29 Aug 2017 04:58:02 -0400 (EDT) Received: from frontend2 ([10.202.2.161]) by compute1.internal (MEProxy); Tue, 29 Aug 2017 04:58:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-sender:x-me-sender:x-sasl-enc:x-sasl-enc; s= fm1; bh=OssHy1scIGzoK5qCocLXJFUIA3zqCcDdD86zHLsTj44=; b=kbWGtpeU OCHPC7DH03bMx+yuayCMi0n3qqbyFOrSVX9AKIG4BNB1NI2L6Ti5pCU3elSeppkG CfYI3J2tl7P+fdrirp2SOPywsLtVpy/QZ9017f/RYUJKonTsF55m4CBWpGrglIBz ETJmW3cMFoUH2bg/LvNwTzC9Ul7wvCDF3las8kFvxYTG3b5ujjpGiz3UGlUaVFBx /048CF6OqOmnZmV/e2XZGCtyTXq9CvZshRDsq9nqWYmKF3EQ0Z6RUFfWbwuRb5E7 E4N9gXmc8fODW0zXc+sorPmMnvYRA3l+HSXdTIrphlKorIN4vxUHOnI4J5tk0H58 gE+qVN5TcHOpOg== X-ME-Sender: X-Sasl-enc: IrR7y/TYrFkXV/fJjNnJW3ycKQHpCD1wREsOBV4M2n10 1503997082 Received: from ebox.rath.org (ebox.rath.org [45.79.69.51]) by mail.messagingengine.com (Postfix) with ESMTPA id 5F1962444E for ; Tue, 29 Aug 2017 04:58:02 -0400 (EDT) Received: from vostro.rath.org (vostro [192.168.12.4]) by ebox.rath.org (Postfix) with ESMTPS id 68DD377E for ; Tue, 29 Aug 2017 08:58:01 +0000 (UTC) Received: by vostro.rath.org (Postfix, from userid 1000) id EE88B102A0D; Tue, 29 Aug 2017 10:57:59 +0200 (CEST) From: Nikolaus Rath To: freebsd-fs@freebsd.org Subject: Re: umount() taking minutes for FUSE filesystems References: <87bmn44ruu.fsf@vostro.rath.org> Mail-Copies-To: never Mail-Followup-To: freebsd-fs@freebsd.org Date: Tue, 29 Aug 2017 10:57:59 +0200 In-Reply-To: <87bmn44ruu.fsf@vostro.rath.org> (Nikolaus Rath's message of "Thu, 24 Aug 2017 22:45:45 +0200") Message-ID: <87o9qyrbs8.fsf@vostro.rath.org> User-Agent: Gnus/5.130014 (Ma Gnus v0.14) Emacs/25.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Aug 2017 08:58:05 -0000 *ping* Anyone able to help? Thanks, -Nikolaus On Aug 24 2017, Nikolaus Rath wrote: > Hello, > > It seems that in some situations, the unmount() system call takes > minutes to unmount fuse filesystems. To reproduce, download a Git > snapshot of libfuse 3 from https://github.com/libfuse/libfuse and do: > > $ md build; cd build > $ meson .. > $ mesonconf -D buildtype=3Ddebug # optional > $ ninja > > Then execute examples/printcap. This will take very long, and all the > time is spent in the unmount(mountpoint, MNT_FORCE) call in > mount_bsd.c:fuse_kern_unmount(). > > Does anyone have an idea what might be causing this and how to fix it? > > My hunch is that it has something to do with libfuse no longer > responding to requests at this point. But I'm at my wits end as to why > and what to do about it.... > > Best, > -Nikolaus > > --=20 > GPG Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F > > =C2=BBTime flies like an arrow, fruit flies like a Banana.= =C2=AB > _______________________________________________ > freebsd-fs@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" --=20 GPG Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F =C2=BBTime flies like an arrow, fruit flies like a Banana.=C2= =AB