From owner-freebsd-java@freebsd.org Wed Sep 7 18:47:22 2016 Return-Path: Delivered-To: freebsd-java@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 18E83BCF18C for ; Wed, 7 Sep 2016 18:47:22 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 024BD1A1A for ; Wed, 7 Sep 2016 18:47:22 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id F2402BCF18B; Wed, 7 Sep 2016 18:47:21 +0000 (UTC) Delivered-To: java@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 F1E3BBCF18A for ; Wed, 7 Sep 2016 18:47:21 +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 E13DE1A19 for ; Wed, 7 Sep 2016 18:47:21 +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 u87IlLja029701 for ; Wed, 7 Sep 2016 18:47:21 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: java@FreeBSD.org Subject: [Bug 212150] java/openjdk8 frequent sigsev due to small ThreadStackSize Date: Wed, 07 Sep 2016 18:47:22 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Ports & Packages X-Bugzilla-Component: Individual Port(s) X-Bugzilla-Version: Latest X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: openjdk@getsnappy.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: java@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? 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-java@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Porting Java to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Sep 2016 18:47:22 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212150 --- Comment #3 from openjdk@getsnappy.com --- I'm glad it helped. I agree that this is just a workaround and not a fix. = I took a peak at libthr and I don't believe there is a way to detect a native stack overflow. I also looked into the default sizing logic and it looks l= ike the default is identical to Linux, at 1M for 64bit architectures. It looks like the default non-initial thread stack size is 2MB for 64bit architectu= res, so I wonder if 1MB is just too low for FreeBSD.=20 It looks like the stack sizing logic was directly ported from Linux. So ma= ybe the solution would be to bump up the defaults. Does anybody have any clue = as to why we would need a bigger native stack on Freebsd vs Linux? --=20 You are receiving this mail because: You are the assignee for the bug.=