From mboxrd@z Thu Jan 1 00:00:00 1970 From: Loic Dachary Subject: gf_unit 16 A -1 -m SPLIT 16 4 -r ALTMAP - failure Date: Sat, 10 Jan 2015 18:54:43 +0100 Message-ID: <54B16763.7070602@dachary.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="AeELubh9CUANFk7o0khkqBRwobXRSSxeX" Return-path: Received: from mail2.dachary.org ([91.121.57.175]:36516 "EHLO smtp.dmail.dachary.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751201AbbAJRyq (ORCPT ); Sat, 10 Jan 2015 12:54:46 -0500 Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Kevin Greenan , Janne Grunau Cc: Ceph Development This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --AeELubh9CUANFk7o0khkqBRwobXRSSxeX Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Kevin & Janne, The test gf_unit 16 A -1 -m SPLIT 16 4 -r ALTMAP - fails on the current g= f-complete master. The first commit where it fails is commit 474010a91d35fef5ca7dea77205b6a5c7e68c3e9 Author: Janne Grunau Date: Wed Sep 17 16:10:25 2014 +0200 arm: NEON optimisations for gf_w16 Optimisations for the 4,16 split table region multiplications. Selected time_tool.sh 16 -A -B results for a 1.7 GHz cortex-a9: Region Best (MB/s): 532.14 W-Method: 16 -m SPLIT 16 4 -r SIMD - Region Best (MB/s): 212.34 W-Method: 16 -m SPLIT 16 4 -r NOSIMD -= Region Best (MB/s): 801.36 W-Method: 16 -m SPLIT 16 4 -r SIMD -r = ALTMAP - Region Best (MB/s): 93.20 W-Method: 16 -m SPLIT 16 4 -r NOSIMD -= r ALTMAP - Region Best (MB/s): 273.99 W-Method: 16 -m SPLIT 16 8 - Region Best (MB/s): 270.81 W-Method: 16 -m SPLIT 8 8 - Region Best (MB/s): 70.42 W-Method: 16 -m COMPOSITE 2 - - Region Best (MB/s): 393.54 W-Method: 16 -m COMPOSITE 2 - -r ALTMA= P - but the test did exit(0) on error instead of exit(1) and we failed to not= ice. gf_unit 16 A -1 -m SPLIT 16 4 -r ALTMAP - Args: 16 A -1 -m SPLIT 16 4 -r ALTMAP - / size (bytes): 524428 Problem with region multiply (all values in hex): Target address base: 0x8fd08e. Word 0x1 of 0x1fee. Xor: 0 Value: 2 Original source word: d00a Product word: a000 It should be: b01f Do you have an idea why this happens ? For the record here is the bisect = command I used: git bisect start 6fdd8bc3d32cb2f7fa55d2de9dc7cc5bb2f885aa 36e75c3efec08b1= e9bdb9c1f69a5b0018abd8ac7 git bisect run try.sh #!/bin/bash log=3D$(git rev-parse HEAD) echo $log.log make distclean > $log.log 2>&1 =2E/autogen.sh >> $log.log 2>&1 =2E/configure >> $log.log 2>&1 make -j4 >> $log.log 2>&1 ! test/gf_unit 16 A -1 -m SPLIT 16 4 -r ALTMAP - 2>&1 | grep 'It should b= e' Note that b87c41f282dccc1b3649e3ea3fb80d19f820310 fails the test for diff= erent reasons: Args: 16 A -1 -m SPLIT 16 4 -r ALTMAP - / size (bytes): 524428 *** Error in `/home/ubuntu/f/gf-complete/test/.libs/lt-gf_unit': free(): = invalid pointer: 0x00ce7070 *** try.sh: line 8: 12193 Aborted test/gf_unit 16 A -1 -m SPL= IT 16 4 -r ALTMAP - Cheers --=20 Lo=C3=AFc Dachary, Artisan Logiciel Libre --AeELubh9CUANFk7o0khkqBRwobXRSSxeX Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlSxZ2MACgkQ8dLMyEl6F239wgCeNNu0BQ06l2vILBwtB2ZolwcW LP0AmwY1/SrRSIJg4HGNcRpnpZF5KR2y =DHo2 -----END PGP SIGNATURE----- --AeELubh9CUANFk7o0khkqBRwobXRSSxeX--