From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D04F23858CD1; Sun, 17 Mar 2024 16:28:34 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D04F23858CD1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1710692914; bh=CTpkXTFVFfykNHYuZhuoojEWetK5L2Uk6YQTKzYZ+ts=; h=From:To:Subject:Date:In-Reply-To:References:From; b=nMFQiJ2HQQpCrbYSHrTggUQt02zn162XRxyTJGVlYJrdXm9uqAc8qj2fziUm4EBrS aGSo/A4oC3SPJz1+XeUmuJGA1l8MznoSXGmL+Y3zXh7BobqhbELr4IaTTXeN627zTo S1fMlAMYo70vFuCeAqEOWknENbI2+eMCuoHZE06Q= From: "hjl.tools at gmail dot com" To: glibc-bugs@sourceware.org Subject: [Bug dynamic-link/31501] _dl_tlsdesc_dynamic_xsavec may clobber %rbx Date: Sun, 17 Mar 2024 16:28:34 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: glibc X-Bugzilla-Component: dynamic-link X-Bugzilla-Version: 2.40 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: hjl.tools at gmail dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: hjl.tools at gmail dot com X-Bugzilla-Target-Milestone: 2.40 X-Bugzilla-Flags: security- X-Bugzilla-Changed-Fields: attachments.created Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://sourceware.org/bugzilla/show_bug.cgi?id=3D31501 --- Comment #6 from H.J. Lu --- Created attachment 15411 --> https://sourceware.org/bugzilla/attachment.cgi?id=3D15411&action=3Ded= it Dump xsave On Intel AVX machine, the last 128 bytes (LWP area) of xsave buffer is unchanged: [hjl@gnu-cfl-3 xsave-1]$ make ./x xstate_header.xfeatures: 0xfffffffffffffff6 xmm0: 0xffffffffffffffffffffffffffffffff xmm1: 0x00000000000000000000000000000000 xmm2: 0x00000000000000000000000000000000 xmm3: 0x00000000000000000000000000000000 xmm4: 0x00000000000000000000000000000000 xmm5: 0x00000000000000000000000000000000 xmm6: 0x00000000000000000000000000000000 xmm7: 0xffffffffffffffffffffffffffffffff xmm8: 0x00000000000000000000000000000000 xmm9: 0x00000000000000000000000000000000 xmm10: 0x00000000000000000000000000000000 xmm11: 0x00000000000000000000000000000000 xmm12: 0x00000000000000000000000000000000 xmm13: 0x00000000000000000000000000000000 xmm14: 0x00000000000000000000000000000000 xmm15: 0xffffffffffffffffffffffffffffffff ymm_h0: 0xffffffffffffffffffffffffffffffff ymm_h1: 0x00000000000000000000000000000000 ymm_h2: 0x00000000000000000000000000000000 ymm_h3: 0x00000000000000000000000000000000 ymm_h4: 0x00000000000000000000000000000000 ymm_h5: 0x00000000000000000000000000000000 ymm_h6: 0x00000000000000000000000000000000 ymm_h7: 0xffffffffffffffffffffffffffffffff ymm_h8: 0x00000000000000000000000000000000 ymm_h9: 0x00000000000000000000000000000000 ymm_h10: 0x00000000000000000000000000000000 ymm_h11: 0x00000000000000000000000000000000 ymm_h12: 0x00000000000000000000000000000000 ymm_h13: 0x00000000000000000000000000000000 ymm_h14: 0x00000000000000000000000000000000 ymm_h15: 0xffffffffffffffffffffffffffffffff lwp: 0xffffffffffffffffffffffffffffffff mpx0: 0x00000000000000000000000000000000 mpx1: 0x00000000000000000000000000000000 mpx2: 0x00000000000000000000000000000000 mpx3: 0x00000000000000000000000000000000 mpx4: 0xffffffffffffffffffffffffffffffff mpx5: 0xffffffffffffffffffffffffffffffff mpx6: 0xffffffffffffffffffffffffffffffff mpx7: 0xffffffffffffffffffffffffffffffff k0: 0xffffffffffffffff k1: 0xffffffffffffffff k2: 0xffffffffffffffff k3: 0xffffffffffffffff k4: 0xffffffffffffffff k5: 0xffffffffffffffff k6: 0xffffffffffffffff k7: 0xffffffffffffffff zmmh0: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh1: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh2: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh3: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh4: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh5: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh6: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh7: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh8: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh9: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh10: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh11: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh12: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh13: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh14: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh15: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh16: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh17: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh18: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh19: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh20: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh21: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh22: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh23: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh24: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh25: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh26: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh27: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh28: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh29: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh30: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff zmmh31: 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff 0xffffffffffffffffffffffffffffffff0xffffffffffffffffffffffffffffffff [hjl@gnu-cfl-3 xsave-1]$ --=20 You are receiving this mail because: You are on the CC list for the bug.=