From owner-freebsd-bugs@freebsd.org Thu Jul 20 18:07:41 2017 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id CC5C9C7D5E9 for ; Thu, 20 Jul 2017 18:07:41 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B010E732E7 for ; Thu, 20 Jul 2017 18:07:41 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v6KI7egk053135 for ; Thu, 20 Jul 2017 18:07:41 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 219399] System panics after several hours of 14-threads-compilation orgies using poudriere on AMD Ryzen... Date: Thu, 20 Jul 2017 18:07:41 +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: 11.0-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: truckman@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-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 MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Jul 2017 18:07:41 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D219399 --- Comment #87 from Don Lewis --- This variant of the Ryzen segv test pins each thread to a randomly chosen C= PU.=20 Top in thread display mode shows that the individual threads are pinned to = the reported CPUs. I ran it overnight with a loop count parameter of 10000000 = and observed no errors. --- ryzen_segv_test.c.orig 2017-07-19 17:26:47.686991000 -0700 +++ ryzen_segv_test2.c 2017-07-19 22:05:45.162536000 -0700 @@ -69,6 +69,8 @@ #include #include #include +#include +#include #include #endif @@ -332,8 +334,8 @@ pthread_t t1, t2, t3; #ifdef _MSC_VER #else - cpu_set_t cpuset; - int cpu; + cpuset_t cpuset; + int cpu1, cpu2, cpu3; #endif pid_t pid =3D getpid(); @@ -362,11 +364,20 @@ #ifdef _MSC_VER #else - cpu =3D random() % n_cpus; + cpu1 =3D random() % n_cpus; + cpu2 =3D random() % n_cpus; + cpu3 =3D random() % n_cpus; CPU_ZERO(&cpuset); - CPU_SET(cpu, &cpuset); - sched_setaffinity(pid, sizeof(cpu_set_t), &cpuset); - fprintf(stderr, "PID:%d CPU:%d\n", (int)pid, cpu); + CPU_SET(cpu1, &cpuset); + pthread_setaffinity_np(t1, sizeof(cpuset_t), &cpuset); + CPU_ZERO(&cpuset); + CPU_SET(cpu2, &cpuset); + pthread_setaffinity_np(t2, sizeof(cpuset_t), &cpuset); + CPU_ZERO(&cpuset); + CPU_SET(cpu3, &cpuset); + pthread_setaffinity_np(t3, sizeof(cpuset_t), &cpuset); + /* cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, pid, sizeof(cpuset_t), &cpuset); */ + fprintf(stderr, "PID:%d CPU1:%d, CPU2:%d CPU3:%d\n", (int)pid, cpu1, cpu2, cpu3); #endif pthread_join(t1, NULL); --=20 You are receiving this mail because: You are the assignee for the bug.=