From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Moraga Subject: Re: crash on boot with 4.6.1 on fedora 24 Date: Mon, 9 May 2016 11:22:06 -0600 Message-ID: <5730C73E.8030007@riseup.net> References: <572FC2F9.3060200@riseup.net> <57307DD402000078000E9622@prv-mh.provo.novell.com> <5730A447.3010505@riseup.net> <5730CE7E02000078000E9A8A@prv-mh.provo.novell.com> <5730BD86.6080407@riseup.net> <5730C5A4.9040008@oracle.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============3818650262776452094==" Return-path: In-Reply-To: <5730C5A4.9040008@oracle.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Boris Ostrovsky , Jan Beulich Cc: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============3818650262776452094== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="OxSlDuXx1LtHVIdHbm90l5lkUtvEFacQd" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --OxSlDuXx1LtHVIdHbm90l5lkUtvEFacQd Content-Type: multipart/mixed; boundary="rPRdlWTVO2fci9QTreV8kiwpl2N2vnhI8" From: Kevin Moraga To: Boris Ostrovsky , Jan Beulich Cc: xen-devel@lists.xen.org Message-ID: <5730C73E.8030007@riseup.net> Subject: Re: [Xen-devel] crash on boot with 4.6.1 on fedora 24 References: <572FC2F9.3060200@riseup.net> <57307DD402000078000E9622@prv-mh.provo.novell.com> <5730A447.3010505@riseup.net> <5730CE7E02000078000E9A8A@prv-mh.provo.novell.com> <5730BD86.6080407@riseup.net> <5730C5A4.9040008@oracle.com> In-Reply-To: <5730C5A4.9040008@oracle.com> --rPRdlWTVO2fci9QTreV8kiwpl2N2vnhI8 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 05/09/2016 11:15 AM, Boris Ostrovsky wrote: > On 05/09/2016 12:40 PM, Kevin Moraga wrote: >> On 05/09/2016 09:53 AM, Jan Beulich wrote: >>>>>> On 09.05.16 at 16:52, wrote: >>>> On 05/09/2016 04:08 AM, Jan Beulich wrote: >>>>>>>> On 09.05.16 at 00:51, wrote: >>>>>> I'm try to compile kernel 4.4.8 (using fedora 23) to run with Xen = 4.6.0 >>>>>> and Intel Skylake processor (Intel Core i7-6600U) >>>>>> >>>>>> This kernel is crashing almost in the same way as explained in thi= s >>>>>> thread... But my problem is mainly with Skylake. Because the same >>>>>> configuration works within another machine but with another proces= sor >>>>>> (Intel Core i5-3340M). Attached are the boot logs. >>>>> The address the fault occurs on (ffff8000006bdee0) is bogus, so >>>>> from the register and stack dump alone I don't think we can derive >>>>> much. What we'd need is access to the kernel binary used (or >>>>> really the vmlinux accompanying the vmlinuz that was used), in >>>>> order to see where exactly the kernel died, and hence where this >>>>> bogus address originates from. As I understand it this is a kernel >>>>> you built yourself - can you make said binary from exactly that >>>>> build available somewhere?=20 >>>> Yes I have it. But I get the same crash on various 4.4.X and also wi= th >>>> 4.5.3. >>>> >>>> **https://drive.google.com/open?id=3D0B6Ol0ob95UxXQV9HM1BWMmhCZ0E=20 >>> Well, this doesn't contain the file I'm after (vmlinux), and taking >>> apart vmlinuz would be quite cumbersome. >>> >>> Jan >>> >> Oh sorry, here is the link to vmlinux >> >> https://drive.google.com/file/d/0B6Ol0ob95UxXN0dDMWM1a29vMEk/view?usp=3D= sharing > > This is still vmlinuz but the failure is at > > ffffffff81007ef3: 48 3b 1d 4e 2e ec 00 cmp =20 > 0xec2e4e(%rip),%rbx # 0xffffffff81ecad48 > ffffffff81007efa: 73 51 jae 0xffffffff81007f= 4d > ffffffff81007efc: 31 c0 xor %eax,%eax > ffffffff81007efe: 48 8b 15 03 d2 c0 00 mov =20 > 0xc0d203(%rip),%rdx # 0xffffffff81c15108 > ffffffff81007f05: 90 nop > ffffffff81007f06: 90 nop > ffffffff81007f07: 90 nop > ffffffff81007f08: 4c 8b 2c da mov =20 > (%rdx,%rbx,8),%r13 <=3D=3D=3D=3D=3D=3D > ffffffff81007f0c: 90 nop > ffffffff81007f0d: 90 nop > ffffffff81007f0e: 90 nop > ffffffff81007f0f: 85 c0 test %eax,%eax > ffffffff81007f11: 78 3a js 0xffffffff81007f= 4d > ffffffff81007f13: 48 8b 05 ee 11 d2 00 mov =20 > 0xd211ee(%rip),%rax # 0xffffffff81d29108 > ffffffff81007f1a: 49 39 c5 cmp %rax,%r13 > ffffffff81007f1d: 73 6f jae 0xffffffff81007f= 8e > ffffffff81007f1f: 48 8b 05 ea 11 d2 00 mov =20 > 0xd211ea(%rip),%rax # 0xffffffff81d29110 > ffffffff81007f26: 4a 8b 04 e8 mov (%rax,%r13,8),%r= ax > > Any chance you could provide an un-stripped binary or System.map? Here is the link for System.map https://drive.google.com/file/d/0B6Ol0ob95UxXYVE4SzdMcENsWWs/view?usp=3Ds= haring --=20 Sincerely, Kevin Moraga PGP: F258EDCB Fingerprint: 3915 A5A9 959C D18F 0A89 B47E FB4B 55F5 F258 EDCB --rPRdlWTVO2fci9QTreV8kiwpl2N2vnhI8-- --OxSlDuXx1LtHVIdHbm90l5lkUtvEFacQd 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 iQIcBAEBCAAGBQJXMMc+AAoJEIr57EYHp2ROp9IP/1W19ophY4PuvfRDOcB2RlaD W5x1rLca+NYZC3oRmwwexOflg5IbyIaFKae7x4x2yFUKq09zvPmWFZjvHGIHtjUu +f7LTuN9mmVa++XaLZ/xrOf3zNDREjE4j+VpLZjhYF0A+MA0lWMLoUgn5QQr99WE MGDlXWygAaK2UtD5p51VF5UfET3ngVxYhYURmsIwsCh0oW2+v7t9rZtx4iChPiGX sImZy1qhExP//N8ZHWrbgrtO2hsUYFzyEJEX12abpl7l1vpNA/rnwuF5azf2M2Dz mxifFJNbseJYxgWFZF4DqlPkjMi488LYPzQytNNoRpMBdHo6cQYB6sb8MlCLg3OR YaTZ4I+e2+vQ/Db+5C0kRoE20bl+sE1YkXUxWhIozC6dwKldjkcxu4OCR6CZRp66 kjJBdIteC1czywdW0EV/yL76yD+g+X5slURWgEfzeCIIv362SHHb5EjUprOklygK BVOQK67JHawMH/Pu6ZOk+KSvwN8PP+iPNj3OV/w6S8ONQjKvCj9TnA+R69KB2JQi YaaP99jwhQqJq2VynMyPFsoXjnFLeqRGm+wXxpnaZ9bkcYwqhdgJLDCWVzQssZ89 jZnwgeOOI6UixU/6/kvd9XAdK9O+o2jUQN3hDL47ogRRdEb3iGFKiI/HVESRX+ff 9imM5Ac+HAVmER6F9A0P =nVdo -----END PGP SIGNATURE----- --OxSlDuXx1LtHVIdHbm90l5lkUtvEFacQd-- --===============3818650262776452094== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9y Zy94ZW4tZGV2ZWwK --===============3818650262776452094==--