From nobody Thu Apr 16 15:28:33 2026 X-Original-To: dev-commits-src-branches@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 4fxMNf230hz6Zr98 for ; Thu, 16 Apr 2026 15:28:34 +0000 (UTC) (envelope-from git@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 "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fxMNd5lcWz3G01 for ; Thu, 16 Apr 2026 15:28:33 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1776353314; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=Fhnhs32H56j0druWFIeXaIHZoEdttN62BYkdrOi/Pzw=; b=Oz9uNmg7Ai9aGhgNKpHcfbpgJKEdBv3VO7uA5BlhXxzendPG0Ypyu1J4q0+3YLZS8sQqiX RRIA5dTJJf1iu0OQ0EMDyvBn3Fa7W2awn+rNOG2iIr4b85sY7gu/XjWhqOyKOHTpRkKQV8 391KKDPmSplPSeL9X4E5N6Ied8jCk8PEhdgDhqbN2zAi8u5BhEltUJXEaJVpxTNgRL3Krf a4+2KIzQZhonkGMJFnt0PfyffWZVbydr4xP4MbZ8miJ6BHUwLv/iAOYRYxH+wyC5AcJ6Op Ys8z3doNU6iy5DhSRZBabAUuKDT7fWmWIDuU6dt6tTM542RWTe3ZbPM0lb0WHQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1776353314; a=rsa-sha256; cv=none; b=Y+oblWZWKbLOfzo1UpjEvAHEzSYLDsd+3WKiiYvliZ+36S2ERjNJbvrAG9+XcLYm9WGFgP sGd2sxiTs34zJByHFwzaCb7Umz9gh6TegXVKmh5Y9lba7QN37CoJn4Y4f778/Tl+6O03vc veS9TaWExXECOcFMKi3YD97qthWJQJMzQk/89zufCBhYZ+aG96XYmXd4/GhUIjGfJ3MAZI +k/aEvnz1xbb20nEGTNm3HxdfTWs4+hibWBi7H4h9cCuI5NNz1k7nfLNF/coG++Gmp4KrH j89CcQ6zFcOKWJJWSh0g3n8tbQcZdXRNx/iXpq9cgO/32PU5NngzB26TWyZK0A== 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=1776353314; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=Fhnhs32H56j0druWFIeXaIHZoEdttN62BYkdrOi/Pzw=; b=lda5evUpSmfr3gtbwZf/pIm2O/AkbyWNBrhP8n2ufmfHAKC+vSCUe2Kv5QMP/Sor2C/kLo 2tmPA7W2F14AKBlAgTrHHJz6P9NZwNGi/XjCL5/Y5JjXYVedBB8RBx7i2yVxNjNoJjHGFp BN1RoDmVrZMYBDGlGPevEdK+rU3bNTVevFOgI119XGdc6r/jqTJHZDmEJh6Xb63R7QOHHV nbyjm8zTBb9u1bbCxpQYDLAfebPxQ8TrfQKQgKMhA6auHnbDWMQViyrrZqiU1/B6xMqFYq XGB4WIrbwck37+pq4fVd+5beXRs316EM7SD70HpiujO8Q+vag4qTd8FgkBLNPw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4fxMNd4DdFz1CTg for ; Thu, 16 Apr 2026 15:28:33 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 1e973 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Thu, 16 Apr 2026 15:28:33 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: Kit Dallege From: Mitchell Horne Subject: git: 0a5c45744e21 - stable/15 - mq_open(2): document sysctl limit EINVAL and ENFILE conditions List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: mhorne X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: 0a5c45744e214275279b97f15b72fc8b9bd4da71 Auto-Submitted: auto-generated Date: Thu, 16 Apr 2026 15:28:33 +0000 Message-Id: <69e10021.1e973.24a50abb@gitrepo.freebsd.org> The branch stable/15 has been updated by mhorne: URL: https://cgit.FreeBSD.org/src/commit/?id=0a5c45744e214275279b97f15b72fc8b9bd4da71 commit 0a5c45744e214275279b97f15b72fc8b9bd4da71 Author: Kit Dallege AuthorDate: 2026-04-02 17:37:49 +0000 Commit: Mitchell Horne CommitDate: 2026-04-16 15:25:07 +0000 mq_open(2): document sysctl limit EINVAL and ENFILE conditions Document two missing error conditions for mq_open(2): - EINVAL: returned when mq_maxmsg exceeds kern.mqueue.maxmsg or mq_msgsize exceeds kern.mqueue.maxmsgsize. - ENFILE: add kern.mqueue.maxmq sysctl name to the existing entry. PR: 243209 Reviewed by: mhorne MFC after: 1 week Signed-off-by: Kit Dallege Pull Request: https://github.com/freebsd/freebsd-src/pull/2098 (cherry picked from commit 3e9f4fd6fc50300d052d5619d82a14d3488483d5) --- lib/libsys/mq_open.2 | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/lib/libsys/mq_open.2 b/lib/libsys/mq_open.2 index 4800ab18de59..f0b8618f62a5 100644 --- a/lib/libsys/mq_open.2 +++ b/lib/libsys/mq_open.2 @@ -35,7 +35,7 @@ .\" the referee document. The original Standard can be obtained online at .\" http://www.opengroup.org/unix/online.html. .\" -.Dd May 15, 2024 +.Dd April 2, 2026 .Dt MQ_OPEN 2 .Os .Sh NAME @@ -282,6 +282,24 @@ and either or .Va mq_msgsize was less than or equal to zero. +.It Bq Er EINVAL +.Dv O_CREAT +was specified in +.Fa oflag , +the value of +.Fa attr +is not +.Dv NULL , +and either +.Va mq_maxmsg +exceeds the +.Va kern.mqueue.maxmsg +sysctl limit, +or +.Va mq_msgsize +exceeds the +.Va kern.mqueue.maxmsgsize +sysctl limit. .It Bq Er EMFILE Too many message queue descriptors or file descriptors are currently in use by this process. @@ -295,6 +313,9 @@ is longer than .Brq Dv NAME_MAX . .It Bq Er ENFILE Too many message queues are currently open in the system. +The system limit is controlled by the +.Va kern.mqueue.maxmq +sysctl. .It Bq Er ENOENT .Dv O_CREAT is not set and the named message queue does not exist.