From nobody Mon Mar 18 02:54:46 2024 X-Original-To: zfs-devel@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 4TyfbC6Wwnz5FQJL for ; Mon, 18 Mar 2024 02:54:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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 "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4TyfbC3wNxz411Y for ; Mon, 18 Mar 2024 02:54:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1710730487; a=rsa-sha256; cv=none; b=SGSjiNG0xSzdbw7D/pkrMICgJe9B/PqyYh4FCrjRmPw8ygVpaLra45xKRPIAmVSfRff9JO 8JChsgNz+OhICrxZ8wo7lUjjdc3YaRbiQ/zH+T8vHdg0jmCvKdHqb/pO7/FvAt10c9XBNY W4HKLqf97B8/G3emBeS3fEtdkm31N1Eo6Owqrqo7VUyuwC2qZGCFfTRRL8Q8nZVKOpGsni ChIDB0BbyyqAuZe9P4bde6GwLWdN7agm6iTL+qiwM7CFXSk3oshYSwNnELthQiV/Mmdu6v j7YvUcRlnlZaXZl7Cr1NDRtNi+jQD+qC03VCayWoMtfGU17PkqvXoBU0S5Mi/g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1710730487; 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=BdKf/QfnUCay11xGpjmnBGCfsYma0uf7c3zKlcV+RAw=; b=pBiUH48AtimtnbInuG5ZSW3j0HFlYdnk5pSBzjlxFLimouK/l4I8Mi7TfTxcawew4MhOoX 9lhdatJCLr3ZbTeI7nr7+O+7VeeUybtfUDKFZ0FFNJ87G9vX5pHr09HoaOIBap5Ftnvgxj cFsIfBlAT/NxMH/ZsI9GDuaQ2UBMT+jdbJ6BzA7I++IxexaoEcgXOlc0xcmc00fBVRDhpb z5jyxE8Dm39X4z9Eqt+ywQsfPb5f/YdfnJQ/p/5gmAeh5BZEt17EuJjHUZLDpqdsryG014 GcKQMNiXYSFgLfuIiMDQ5YUEFlYKMeTlztK1XWSDVJ1REnHqnz4+fts23Qstig== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (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) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4TyfbC3WZLz14jd for ; Mon, 18 Mar 2024 02:54:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 42I2slRo049624 for ; Mon, 18 Mar 2024 02:54:47 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 42I2slxW049623 for zfs-devel@FreeBSD.org; Mon, 18 Mar 2024 02:54:47 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: zfs-devel@FreeBSD.org Subject: [Bug 277389] Reproduceable low memory freeze on 14.0-RELEASE-p5 Date: Mon, 18 Mar 2024 02:54:46 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: marklmi26-fbsd@yahoo.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: ZFS file system development for FreeBSD discussions List-Archive: https://lists.freebsd.org/archives/zfs-devel List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-zfs-devel@freebsd.org X-BeenThere: zfs-devel@freebsd.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D277389 --- Comment #27 from Mark Millard --- (In reply to pascal.guitierrez from comment #26) I'll note that I never used mount_nullfs explicitly at any point but I still got the huge difference in VNODE results in "vmstat -z" when doing your test iozone runs, all based just on the: nullfs_load=3D"YES" vfs.nullfs.cache_vnodes=3D0 vs. not distinction. There may be implicit/automatic use involved? ( zfs_load=3D"YES" both ways. ) Because of your hangup status, doing a "vmstat -z" and saving the output before doing the read iozone test would be good. Both with and without the 3 lines for comparison/contrast: the vmstat -z output differences should indicate if internally any difference is being made. I made the suggestion because I've no way to tell if what I've been reporting contributes to your context or not: I've never seen the OOM activity or hangups. But the huge Wired figures that even survive the ARC shrinking suggest potential contribution to an OOM status. --=20 You are receiving this mail because: You are on the CC list for the bug.=