From owner-freebsd-stable@freebsd.org Tue Aug 23 07:27:58 2016 Return-Path: Delivered-To: freebsd-stable@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 BF3A7BC213F; Tue, 23 Aug 2016 07:27:58 +0000 (UTC) (envelope-from chardon.frederic@gmail.com) Received: from mail-oi0-x22a.google.com (mail-oi0-x22a.google.com [IPv6:2607:f8b0:4003:c06::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 82FF31E02; Tue, 23 Aug 2016 07:27:58 +0000 (UTC) (envelope-from chardon.frederic@gmail.com) Received: by mail-oi0-x22a.google.com with SMTP id f189so185011613oig.3; Tue, 23 Aug 2016 00:27:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=2a9zOnmXiceS/lvKBUIK4iF4YP1/kTpXOpzSNS2yEw0=; b=Twx8ner3UbxE39nJ+XUT00JI12juOmjgLFa3EZGxJ6rEKDbKQ0dA2RcV49c5B7jLGL FtSQa9Bicm/KKw4iqtAJAFSYrN0Hl3khC2hITZjepWqKIqeIUTXtogGf77uB53hpgLR9 B04E1Z8Tiq0Q1dOzaSrd39n0VtKdXGjAQainFE/7wbhzYNd/14AAtdwTj2cU0DzD2cU+ D8tgLPhiwiWiCvUkY/vCZAHLO0gPgIUaqH78T4bGmfLPSUiR88bw6FQYR56L7xvSJCad HKTxYOLQanzcGv/MlK/W0KGCjumArLtgEgKVuEnWGDNM880qh5QLyvj4mVI3cHp150BT GDxQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=2a9zOnmXiceS/lvKBUIK4iF4YP1/kTpXOpzSNS2yEw0=; b=fS+qN45Q+Ll8PwFcA6zT0rdj/PNTKI143Lh4Sw0GWo+PMe76VdlJhwamgbL5fxGG24 qVaCIhKd6/+T/JBxdg/qY1jWHGZ2Nx6lBu4QHJ9SqS4uELrzQ+6X4YuY9KNvovHZpwzn 5bxZEPjeiI6xPkLzY3+lPxhrgWKpm+9qMZPGScUmDkwo92KOVbu56hDrLub2BYh84LyE SizaWLxNN2hfmhJ6rDgNVhmMtUDgOSdUguKUbFfcaY+Slg2JwIOcsdFekB2+BJ11EgxJ o0kCUvIIC/V2rYRcMhrGGVg82NSEPerBgTrOIMp2/27K4NLDBQ3Tnq+EuA4L+YdjuCLi Y5DA== X-Gm-Message-State: AEkoouumAnzAaR6/0qhXA5kkLT54Fm+Fq74Gf+ZNuvdE80LE3AzG1FHitpI17UZmMP35Z8fR+a8UCjiEkcu/nQ== X-Received: by 10.157.19.9 with SMTP id f9mr16578663ote.174.1471937277614; Tue, 23 Aug 2016 00:27:57 -0700 (PDT) MIME-Version: 1.0 Received: by 10.202.51.196 with HTTP; Tue, 23 Aug 2016 00:27:56 -0700 (PDT) Received: by 10.202.51.196 with HTTP; Tue, 23 Aug 2016 00:27:56 -0700 (PDT) In-Reply-To: References: From: Frederic Chardon Date: Tue, 23 Aug 2016 09:27:56 +0200 Message-ID: Subject: Re: kern.proc.pathname failure while booting from zfs To: freebsd-stable@freebsd.org, freebsd-current@freebsd.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.22 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Aug 2016 07:27:58 -0000 Le 20 ao=C3=BBt 2016 22:03, "Frederic Chardon" = a =C3=A9crit : > > Hi > > I see a strange interaction between zfs on root and kern.proc.pathname > on my laptop. Whenever I try to use gcore it fails with: > gcore 1023 > gcore: kern.proc.pathname failure > > However, gcore /usr/local/bin/zsh 1023 is working properly. > > I made some tests booting from usb stick (fresh installworld, no > src.conf, no make.conf, GENERIC kernel) > What works: having / on ufs and importing a zfs pool later on. > What doesn't: having / on zfs, whatever the settings for checksum, > compression, or normalization. > > Both 11-stable and 12-current behave this way. Current from may-june > worked properly. > adb, chromium and virtualbox as well stopped working at approximately > the same time, however I don't know if it is linked ("truss -f adb > start-server" shows that garbage is passed to execl after forking). > > Any idea what's going on? Does anybody else see this? > > Thanks! Nobody else have this problem? I reinstalled the system from scratch and still gcore fails with the same error, even in single user mode.