From nobody Wed Dec 6 13:48:25 2023 X-Original-To: bugs@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 4Sldyy0kdbz53TSG for ; Wed, 6 Dec 2023 13:48:26 +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 4Sldyx4WVKz4Cxb for ; Wed, 6 Dec 2023 13:48:25 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1701870505; a=rsa-sha256; cv=none; b=ti3caEXTQeV9mMpisT3gL9FJ9zN8lMjwpt/kcKTnQoT/G0EFXK/Hb84Fpp1QXSGdI10WT6 vKltJ+/pxJEEhj45QyLw76Y8vD3Gj67cxUW+VPI1PGdA4ej89KonPCYK23FSz2S5NzhKmu ysD0y2Z2WdD3vgLt4uRRGnld+WwyKZ00ZzPBOj2IJ2JrWDK/gC+Ak1OCGw8AlsNk+Xy7DT WW+q0KHr+I+K4zNDtY4aNZxOMw4aScwhHHkLv/+M6lONC+hWvDXWaU9rEnldF/vt/ChuAL TMhQRAKPLCaIM+G0xF23QaigRJQjJyl2Coz5OVb7Lbr6PBzENaIrHk7WxCKXvQ== 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=1701870505; 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; bh=i4nwaD0itjAzhk3/MejSt1dRBG3Upw2SYxeURN0NP5k=; b=h3PrC4c+HprV2jSIy8Z1QQSpw8YnWiFiO+ocFPGF8cBHy0zWqWO+KWDA/SE0cEPaL52kbj Hx7t7Z/teGAHGQTZcrqnEm8HLrhLkLIjn1JJsbfj0cINYQS5FvW6Y84bGwaxJ1nJb8PZqq aVNZYjlDwvGjFX4tzaXa1dOBrEKJ+80rvpSMQffF4+tmtjI7oxyzP7n34XoYy3LNu+FTB4 mJEJBM7oF57CPhMURRXf1nFZKEAHhXq6msZEJTbVWfM914vPIwIVNBnK5HhXsfwTXmiVZu x4HvVqv0UTglXjBy0ng5yI/QhG+Xtwg3LzqvfRZytsEsaZJwginlUwcZTVf71w== 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 4Sldyx3bZbzwCb for ; Wed, 6 Dec 2023 13:48:25 +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 3B6DmPrX054395 for ; Wed, 6 Dec 2023 13:48:25 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 3B6DmPKm054393 for bugs@FreeBSD.org; Wed, 6 Dec 2023 13:48:25 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: bugs@FreeBSD.org Subject: [Bug 275570] self-referential nullfs mount over tmpfs in combination with MNT_UPDATE results in a hang Date: Wed, 06 Dec 2023 13:48:25 +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: Unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: iwtcex@gmail.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: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter attachments.created 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 List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275570 Bug ID: 275570 Summary: self-referential nullfs mount over tmpfs in combination with MNT_UPDATE results in a hang Product: Base System Version: Unspecified Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: iwtcex@gmail.com Created attachment 246821 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D246821&action= =3Dedit deadlock.c Update the issue title as you see fit. The attached repro works in 14 and CURRENT. I admit mounting a path on itse= lf is a bit silly (and probably should be forbidden), but the hang is still wo= rth a look. --=20 You are receiving this mail because: You are the assignee for the bug.=