From owner-freebsd-bugs@freebsd.org Wed Mar 9 12:40:19 2016 Return-Path: Delivered-To: freebsd-bugs@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 4E038AC9110 for ; Wed, 9 Mar 2016 12:40:19 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (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 267011AD for ; Wed, 9 Mar 2016 12:40:19 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u29CeJiQ008857 for ; Wed, 9 Mar 2016 12:40:19 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 207838] [zfs] getcwd fails with permission denied under load Date: Wed, 09 Mar 2016 12:40:19 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 10.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: h2+fbsdports@fsfe.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Mar 2016 12:40:19 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207838 Bug ID: 207838 Summary: [zfs] getcwd fails with permission denied under load Product: Base System Version: 10.2-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: h2+fbsdports@fsfe.org I have a machine running a large number of nightly builds and unit tests ev= ery night, maybe more than 8000 targets/tests in all compiler/flag combinations. Every once in a while (on average maybe one per night) a random one of the builds fails with: gmake: getcwd: Permission denied Also sometimes the build of the manual (a python process), fails with: os.path.join(os.getcwd(), 'dummy'), OSError: [Errno 13] Permission denied The system: FreeBSD 10.2-RELEASE FreeBSD 10.2-RELEASE #0 r286666: Wed Aug 12 15:26:37 UTC 2015 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GEN= ERIC amd64 The system is running a ZFS mirror on two SSDs and the relevant datasets ar= e: zssdroot/tmp on /tmp (zfs, local, noatime, nosuid, nfsv4acls) zssdroot/nightly-builds on /usr/home/mi/h4nn3s/nightly-builds (zfs, local, noatime, nfsv4acls) -> the /tmp is not a tmpfs The situation is a little annoying, because it permanently produces false positives in the build matrix... Anything I can do to help diagnose / fix this? Thank you for your help! --=20 You are receiving this mail because: You are the assignee for the bug.=