From nobody Mon Mar 21 15:15:09 2022 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 C0D811A37553 for ; Mon, 21 Mar 2022 15:15:09 +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 4KMdTT3dq0z4rwV for ; Mon, 21 Mar 2022 15:15:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 5A7B41D663 for ; Mon, 21 Mar 2022 15:15:09 +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 22LFF9vN070759 for ; Mon, 21 Mar 2022 15:15:09 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 22LFF9AK070758 for bugs@FreeBSD.org; Mon, 21 Mar 2022 15:15:09 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 262587] panic: lock (sleep mutex) umtxql not locked @ /usr/src/sys/sys/umtxvar.h:262 on 14-current master-n253798-8cdecdecb43 Date: Mon, 21 Mar 2022 15:15:09 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: markj@FreeBSD.org X-Bugzilla-Status: Open 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: 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 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1647875709; 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=G6kJ2fM0F7Ca92BoqMTLfNtdkp61nDskQFVsIXhRPc4=; b=Jd5jIMyOW7pLdqlMkk+/Z+Wbsfliz4MiJaesxzG47nPEOUfP770SCl6YJTOqcWVRSJmy0T Wplt2DCy0UFoFgZOytXTKH6+MRD2JLFU8FwdWH6lR020hVHjlTk/+BykHDGSoeDlZ3baSM 1cbVkRutFRF9DkHMf7M6uqngQicufSUByYnSdvg8QOb2y7vYW5ke6XyLrHtB8zmV34CQzD FNKL1xnYHURiFFlrJwfvGGs4fBSHKr+6UDVObB8fKE9Gf7CEGCHDETcPmkHJIp2bNIukkp prR7sQ5wVtZUuQhf2GpRn/u8mPxtVrFFa7+ETGpCmEJSijXdRvKkyzHYF0jI+A== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1647875709; a=rsa-sha256; cv=none; b=LPPGFzGHWCJFrRS1BsM/PIaUkMnJgJfTg1TPGRaXhVCiFs5KKpn+DQXk+vhijPZmHSOhLE 0dsRMcDLfAdobda8XT1uAR/ixStigdy24D1Pk8WkQEWs/6s8vTKvEJUZIfKUCwAMKr+Azo VhgdfPKHr/Ph1dpQiphizTu40PzkDDbRIWr6/n8UpubOpJ7M1QTnnooYYxg+xGwai8GwXD mT/QIDu11Ul3YYJZvCDvwZxlIfw4vSJT+OeSgOAF7uOVPw7DOcsWcUB2PIYLubvtWUzRCi sU72OEajQnn7hLukIPHNkaSW6TIpsJa1HhE1w60ylHEo4lC5L9/KDaeEJoYfYQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D262587 --- Comment #9 from Mark Johnston --- Hmm, so we were in linux_futex_wait(), presumably having slept (op 137 or 1= 28 are present in the dmesg, but aren't the last ops, last op 129 is a wakeup)= .=20 We locked the chain before sleeping, and upon waking up we find we have the wrong chain locked. So presumably curthread->td_umtxq.uq_key.hash changed while we were sleeping... --=20 You are receiving this mail because: You are the assignee for the bug.=