From nobody Tue Sep 19 08:55:29 2023 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 4Rqb8x59l5z4tdcJ for ; Tue, 19 Sep 2023 08:55:29 +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 4Rqb8x461yz3P6L for ; Tue, 19 Sep 2023 08:55:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1695113729; a=rsa-sha256; cv=none; b=fWOe0eW1VfPR3rr/nmjW8jepA3Ma8+0vH/IZR5w6gu0pbcp4N6zk1+m4264ulxJMwusWA/ mQEGjk8Cs9sDo+hyiHJbe3vJgP8+0Qok28geAxYkF54zOHH6hvTddYaxmANbmpsibWvh64 vrhoVetSaalKxGmZnitVNQphbonU77KBAaRPazfNcA7tUs4G5Iyp47ZAulIS1/z2X7M4Hb gvkZ4tixBpqUNRhTZJ85vZh5g/lX2f8e1klRlOKnbkO8GQQ5j7O7HKQfagbEU1vSB6lQo1 Gj5gULO4lhnm0TEfmds0Ur2IGDNM+oMf5OiDoahO6x21DcdMAv13oUYl1yJHag== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1695113729; 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=T7/H/6QypyeO8X2hj4EI2ejN++I/6fYw7fX6MoMT9yc=; b=uGt5KTv8ygv9PTUjK/UvEK4WpqjU+xvNGWJrenc5sNxX081Bg1q9Q1VNE7FPEbmyEE1JEB fvq1ZGlA1+rNk6u3JmBZobX/3dcfRr/cLU7oGBRm9yGlCnrY1Bl+wEZWjyqwMH1tIbl5SP PfOtfiEhnvCCeP4DnFNwOb7ZG44sJVYF/eJrKImSESptej2cfxgGKMQoq104ZFUMLhQCza D9lSYg2Y5QP9mx+pWvooG3KCF8kC6r4ibj4PYvnK+QSx3EJ19Kfe/23hlpYp/h37Zjs/Ba luRS2yJfzOXxalm37LHCubqu8VUgOZrM2gKrJJE9oBBnBBnI3eBJIThjfkNG/A== 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 4Rqb8x3DXZz16Xd for ; Tue, 19 Sep 2023 08:55:29 +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 38J8tTlA030273 for ; Tue, 19 Sep 2023 08:55:29 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 38J8tTQW030272 for bugs@FreeBSD.org; Tue, 19 Sep 2023 08:55:29 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 273929] AArch64 machine-dependent code clobbers X0 in SIGTRAP from capsicum violations Date: Tue, 19 Sep 2023 08:55:29 +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: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: theraven@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 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273929 --- Comment #5 from David Chisnall --- I'm not sure what the `mc->mc_gpregs.gp_elr` modification is for in the link register. The PC is set to the instruction after the syscall return in the signal handler and so you shouldn't need to skip any instructions. --=20 You are receiving this mail because: You are the assignee for the bug.=