From nobody Fri Sep 30 19:26:14 2022 X-Original-To: bugs@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 4MfKw75qF2z4YDR8 for ; Fri, 30 Sep 2022 19:26:15 +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 4MfKw714Pcz3H5g for ; Fri, 30 Sep 2022 19:26:15 +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 4MfKw672ThzHCs for ; Fri, 30 Sep 2022 19:26:14 +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 28UJQEhC081417 for ; Fri, 30 Sep 2022 19:26:14 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 28UJQEkY081416 for bugs@FreeBSD.org; Fri, 30 Sep 2022 19:26:14 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: bugs@FreeBSD.org Subject: [Bug 266730] powerpc kernel crash on loadable modules that use copyin/copyout ifunc Date: Fri, 30 Sep 2022 19:26:14 +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: 13.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: alfredo@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: 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 List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1664565975; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=MEphf1M1irH8aMpUx8rh7o04EbWjHoVuo2YKd/hVOXQ=; b=kQul+X6avUVFYriBk3C2V1aUf6uTm6Gr/fw2n1+F1cA7R+VczHhgltiiRTnLL5r6XSN7Vo J9eRPMo9t45uzWG58vx7l8BRhvMtJYeih245ijfkJUeUuCxxFqOTA81069Twr6sUZ6/h9Q tXhIQwxSRMv82K4lHxxNJI3bggU7qslEyoNVkpz4DlqsGuIPSwZ5edg/5zLucAhcBNeD2Y a/BVQ7ea7Cs3pZ9hEfuqOREx7bUNhkzRaqpY7FIii039eN9ee9+jJPhn/gKbja8S09bfBM tSJnexFGMHll9dPK4QPd+gFob6vYXOologgGREhMm3FbVZFjlb2XqH6ptMxzjQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1664565975; a=rsa-sha256; cv=none; b=MMMTnhngvZdfCwc5nyu3tzBihqIejfQ7unbxtQ60ijkYM7ME5/q73U1hxOE1MqdPHMC0Xz L/THuPpA8dLoyN2zxMsByuweFc64+QTF6Q2I+Z+icUdXY2TOl4ObQlecDqXvh0eOyL5uHA iDb72TITYDmsKO0DOTGB0UGo7CZOkQmWoEnwIWHE6Dcvu5utuqB9XSAo+Az2UsDaSLW4xt KwDoWkujylb+lJwmA1cat44OtpN1tIQ2yMXwD/8llMcVr7NU1fCgYGqtGyibZthSW1j14R UIYF7dh7+pbqEFvt4doUZ04K7gylspLctM7QE0pdaVXVxKRVSFJHugjre/nnJw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D266730 --- Comment #1 from Alfredo Dal'Ava Junior --- Links related to the issue: First (naive) attempt to fix: https://reviews.llvm.org/D133745 LLD reproduce tarball: https://github.com/llvm/llvm-project/issues/57722 Userland test case (try to reproduce similar issue): https://github.com/llvm/llvm-project/issues/57851 Problem isn't seen when kernel is linked with LLD9. LLVM/LLD behavior change was identified as due to commit: https://reviews.llvm.org/rGdc06b0bc9ad055d06535462d91bfc2a744b2f589 The discussion with LLVM community is still ongoing. The following temporary workaround was proposed on FreeBSD side:=20 https://reviews.freebsd.org/D36234 --=20 You are receiving this mail because: You are the assignee for the bug.=