From nobody Wed Jan 19 08:23:11 2022 X-Original-To: threads@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 F2E031962C00 for ; Wed, 19 Jan 2022 08:23:11 +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 4JdzDH5sYZz4mZ7 for ; Wed, 19 Jan 2022 08:23:11 +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 AA56E11663 for ; Wed, 19 Jan 2022 08:23:11 +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 20J8NB6m034504 for ; Wed, 19 Jan 2022 08:23:11 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 20J8NBf3034503 for threads@FreeBSD.org; Wed, 19 Jan 2022 08:23:11 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: threads@FreeBSD.org Subject: [Bug 254995] pthread_cond_timedwait() returns EDEADLK Date: Wed, 19 Jan 2022 08:23:11 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: threads X-Bugzilla-Version: 12.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: nkoch@demig.de X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: threads@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: Threading List-Archive: https://lists.freebsd.org/archives/freebsd-threads List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-threads@freebsd.org X-BeenThere: freebsd-threads@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1642580591; 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=n4oHn1YoeW1twljr2NZsZByLxfIekLMnVLdeklrxRoc=; b=qXaHJuOiRvI1FkgFNw6m5CXUEq7R5QXU7xL8ftUlxWPcp2nTkWOGaNlFlA294xorW+DKZi k3HxwCq5/1CiRmWQCygI3swvOP2Cc3tnr9sTClgA/BfuSsyTFiB46UaE+a2VnIg7Rxgxp/ YvZ7nD5fWQmMNu1la3/SicNwAD1k9Auu90T0R7IHzJkOBlOl7+PiD3GN/0iwiurRBqR+mo hbalAe0XVeL62GarOMyxlH0+Fxh3XUMZRit7hp4zlyGDPDVcM+mId72yHve3U/3MEXr1SF vsSN3EgY67Hel8tfv5W3GCtepA48NAYlc1Kddp87wJhi+J00dRTE637o5HGxRQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1642580591; a=rsa-sha256; cv=none; b=k+KyFm+sbQvNY6zlDkxcxEAcXpoqasq9PSy8j+Q4qBYfYVlK2hApsKjs1KxkWE02/RvrCn 2tGMDp2XvvXnuJMVnzzHXzSxUCprFHA+OUG/0W7YUfHMuc3TVjv5RlgaZjCq0a4cT5Mft7 7ZWCScgv/XGY5dp/McuLxANO3Vqvqou0xg8dtrXMcMarCLujz/7hmfp6EK+Oy0ehS4o7Ey ahzoLzGmFcjtyg+3WN3Abrb6J5b95IXdPumeQpVNEvJ+TOY9q0YulIkjDufBXyhimmOSdi kj3TZTGE+vPb5EWJF9HfVZbq/FAOBWrge0+3aWH2qaRqf3RJKL83gC402tiqcA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254995 --- Comment #13 from nkoch@demig.de --- I should add that almost all threads except one run at realtime priority. The one thread without realtime priority forks processes every few seconds. It gathers statistics by exec'ing ps, pstat and fstat. Could that result in some kind of "indirect" deadlock situation because those programs may lock = some kernel structures? Just an idea. --=20 You are receiving this mail because: You are the assignee for the bug.=