From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 2B40C4669F; Fri, 2 May 2025 17:48:01 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id F17CF402F0; Fri, 2 May 2025 17:48:00 +0200 (CEST) Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178]) by mails.dpdk.org (Postfix) with ESMTP id ED9BA402E6 for ; Fri, 2 May 2025 17:47:59 +0200 (CEST) Received: by inbox.dpdk.org (Postfix, from userid 33) id 1C153466A0; Fri, 2 May 2025 17:47:59 +0200 (CEST) From: bugzilla@dpdk.org To: dev@dpdk.org Subject: [DPDK/core Bug 1704] CPU_SETSIZE should not be used Date: Fri, 02 May 2025 15:47:58 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: core X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mb@smartsharesystems.com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- 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 target_milestone Message-ID: Content-Type: multipart/alternative; boundary=17462008780.6EaaAc48.3856327 Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org --17462008780.6EaaAc48.3856327 Date: Fri, 2 May 2025 17:47:58 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All https://bugs.dpdk.org/show_bug.cgi?id=3D1704 Bug ID: 1704 Summary: CPU_SETSIZE should not be used Product: DPDK Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: Normal Component: core Assignee: dev@dpdk.org Reporter: mb@smartsharesystems.com Target Milestone: --- The EAL assumes that cpu_set_t is an array holding CPU_SETSIZE elements. This doesn't work when the host has more physical CPU cores than CPU_SETSIZ= E. Instead, it should use CPU_ALLOC()/CPU_FREE() with the correct number of physical CPU cores in the host. man CPU_SET(3): https://man7.org/linux/man-pages/man3/CPU_SET.3.html --=20 You are receiving this mail because: You are the assignee for the bug.= --17462008780.6EaaAc48.3856327 Date: Fri, 2 May 2025 17:47:58 +0200 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All

Bug ID	1704
Summary	CPU_SETSIZE should not be used
Product	DPDK
Version	unspecified
Hardware	All
OS	All
Status	UNCONFIRMED
Severity	normal
Priority	Normal
Component	core
Assignee	dev@dpdk.org
Reporter	mb@smartsharesystems.com
Target Milestone	---

The EAL assumes that cpu_set_t is =
an array holding CPU_SETSIZE elements.
This doesn't work when the host has more physical CPU cores than CPU_SETSIZ=
E.

Instead, it should use CPU_ALLOC()/CPU_FREE() with the correct number of
physical CPU cores in the host.

man CPU_SET(3):
https://ma=
n7.org/linux/man-pages/man3/CPU_SET.3.html

You are receiving this mail because:

You are the assignee for the bug.

=20=20=20=20=20=20=20=20=20=20

= --17462008780.6EaaAc48.3856327--