From owner-freebsd-python@freebsd.org Thu Apr 29 16:18:12 2021 Return-Path: Delivered-To: freebsd-python@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id E31FC62FE16 for ; Thu, 29 Apr 2021 16:18:12 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4FWLJh5vwlz4q6y for ; Thu, 29 Apr 2021 16:18:12 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id CAE5362FAF3; Thu, 29 Apr 2021 16:18:12 +0000 (UTC) Delivered-To: python@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id CAAEC62FD71 for ; Thu, 29 Apr 2021 16:18:12 +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 4FWLJh5KXFz4q8W for ; Thu, 29 Apr 2021 16:18:12 +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 A61451E115 for ; Thu, 29 Apr 2021 16:18:12 +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 13TGICGC043434 for ; Thu, 29 Apr 2021 16:18:12 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 13TGICmN043433 for python@FreeBSD.org; Thu, 29 Apr 2021 16:18:12 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: python@FreeBSD.org Subject: [Bug 255445] lang/python 3.8/3.9 SIGSEV core dumps in libthr TrueNAS Date: Thu, 29 Apr 2021 16:18:12 +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: crash, needs-patch, needs-qa X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: kai@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: python@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? maintainer-feedback? X-Bugzilla-Changed-Fields: cc attachments.created 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-python@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: FreeBSD-specific Python issues List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Apr 2021 16:18:12 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D255445 Kai Knoblich changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kai@FreeBSD.org --- Comment #12 from Kai Knoblich --- Created attachment 224534 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D224534&action= =3Dedit python38-fix-threading-v1.patch At the outset: Thanks for the report and the detailed descriptions. The threading issue with Python 3.8 (tested with 3.8.9 from the Ports tree)= can be reproduced via the script from comment #2. Following vanilla releases of FreeBSD were tested: - 11.4-RELEASE-p9 [amd64/i386] - 12.2-RELEASE-p6 [amd64/i386] - 13.0-RELEASE-p0 [amd64] - 14.0-CURRENT main-n246037-ca6e1fa3ce8 [amd64] If the attached patch is used, which contains the two backported commits, as noted in comment #0 (BPO-19466 + BPO39511), the regression doesn't occur on= any platform listed above. A side note: If a VM has only one vCPU, the threading issue doesn't seem to= be reproducible with an unpatched version of Python 3.8.9. --=20 You are receiving this mail because: You are the assignee for the bug.=