From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:41804) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UD9bH-0006b5-MB for qemu-devel@nongnu.org; Wed, 06 Mar 2013 03:21:26 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UD9bG-0007NE-9r for qemu-devel@nongnu.org; Wed, 06 Mar 2013 03:21:23 -0500 Received: from www.maurer-it.com ([213.129.239.114]:52303 helo=proxmox.maurer-it.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UD9bF-0007Lj-UK for qemu-devel@nongnu.org; Wed, 06 Mar 2013 03:21:22 -0500 Received: from proxmox.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox.maurer-it.com (Proxmox) with ESMTP id 1097B271E815 for ; Wed, 6 Mar 2013 09:21:14 +0100 (CET) From: Dietmar Maurer Date: Wed, 6 Mar 2013 08:21:11 +0000 Message-ID: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_24E144B8C0207547AD09C467A8259F7557B2BE14lisamaureritcom_" MIME-Version: 1.0 Subject: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "qemu-devel@nongnu.org" --_000_24E144B8C0207547AD09C467A8259F7557B2BE14lisamaureritcom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Using qemu 1.4.0: # qemu -hda test.raw -m 512 -cdrom pfSense-LiveCD-2.0.2-RELEASE-amd64-20121= 207-2239.iso Results in: trap 12: page fault while in kernel mode ... stopped at x86bios_emu_rdw+0x2f: movzwl (%rbx),%eax Any ideas? Can somebody reproduce that? To get the FreeBSD VM boot use the console, enter the boot loader, then: # set hint.atkbd.0.disabled=3D"1" # boot But that disables the keyboard. --_000_24E144B8C0207547AD09C467A8259F7557B2BE14lisamaureritcom_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Using qemu 1.4.0:

 

# qemu -hda test.raw -m 512 -cd= rom pfSense-LiveCD-2.0.2-RELEASE-amd64-20121207-2239.iso

 

Results in:

 

trap 12: page fault while in ke= rnel mode

…

stopped at x86bios_emu_rdw+= 0x2f: movzwl (%rbx),%eax

 

Any ideas? Can somebody reprodu= ce that?

 

To get the FreeBSD VM boot use = the console, enter the boot loader, then:

# set hint.atkbd.0.disabled=3D&= quot;1"

# boot

 

But that disables the keyboard.=

--_000_24E144B8C0207547AD09C467A8259F7557B2BE14lisamaureritcom_-- From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:46911) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDDfr-0006Vf-5r for qemu-devel@nongnu.org; Wed, 06 Mar 2013 07:42:30 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDDfn-0003Qr-LK for qemu-devel@nongnu.org; Wed, 06 Mar 2013 07:42:23 -0500 Received: from mailpro.odiso.net ([89.248.209.98]:41073) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDDfn-0003PJ-Fp for qemu-devel@nongnu.org; Wed, 06 Mar 2013 07:42:19 -0500 Date: Wed, 06 Mar 2013 13:41:51 +0100 (CET) From: Alexandre DERUMIER Message-ID: <5ad412e8-c24a-4f3d-92fb-7f6710342510@mailpro> In-Reply-To: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Dietmar Maurer Cc: qemu-devel@nongnu.org I can also reproduce it. (Host cpu intel or amd, Guest cpu qemu64/kvm64/hos= t). They are also a bugreport on the freebsd mailing here: http://lists.freebsd.org/pipermail/freebsd-amd64/2013-January/015092.html ----- Mail original ----- De: "Dietmar Maurer" =C3=80: qemu-devel@nongnu.org Envoy=C3=A9: Mercredi 6 Mars 2013 09:21:11 Objet: [Qemu-devel] problems with freeBSD Using qemu 1.4.0: # qemu -hda test.raw -m 512 -cdrom pfSense-LiveCD-2.0.2-RELEASE-amd64-20121= 207-2239.iso Results in: trap 12: page fault while in kernel mode =E2=80=A6 stopped at x86bios_emu_rdw+0x2f: movzwl (%rbx),%eax Any ideas? Can somebody reproduce that? To get the FreeBSD VM boot use the console, enter the boot loader, then: # set hint.atkbd.0.disabled=3D"1" # boot But that disables the keyboard. From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:51134) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDFUU-0003J0-VT for qemu-devel@nongnu.org; Wed, 06 Mar 2013 09:38:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDFUQ-0007dU-7r for qemu-devel@nongnu.org; Wed, 06 Mar 2013 09:38:46 -0500 Received: from www.maurer-it.com ([213.129.239.114]:60324 helo=proxmox.maurer-it.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDFUQ-0007d4-1f for qemu-devel@nongnu.org; Wed, 06 Mar 2013 09:38:42 -0500 From: Dietmar Maurer Date: Wed, 6 Mar 2013 14:38:37 +0000 Message-ID: <24E144B8C0207547AD09C467A8259F7557B2C507@lisa.maurer-it.com> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <5ad412e8-c24a-4f3d-92fb-7f6710342510@mailpro> In-Reply-To: <5ad412e8-c24a-4f3d-92fb-7f6710342510@mailpro> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexandre DERUMIER Cc: "qemu-devel@nongnu.org" SSBhbHJlYWR5IHNlbnQgYSBtYWlsIHRvIHRoZSBxZW11LWRldmVsIGxpc3QgLSBubyBhbnN3ZXIg c28gZmFyLg0KDQo+IC0tLS0tT3JpZ2luYWwgTWVzc2FnZS0tLS0tDQo+IEZyb206IEFsZXhhbmRy ZSBERVJVTUlFUiBbbWFpbHRvOmFkZXJ1bWllckBvZGlzby5jb21dDQo+IFNlbnQ6IE1pdHR3b2No LCAwNi4gTcOkcnogMjAxMyAxMzo0Mg0KPiBUbzogRGlldG1hciBNYXVyZXINCj4gQ2M6IHFlbXUt ZGV2ZWxAbm9uZ251Lm9yZw0KPiBTdWJqZWN0OiBSZTogW1FlbXUtZGV2ZWxdIHByb2JsZW1zIHdp dGggZnJlZUJTRA0KPiANCj4gSSBjYW4gYWxzbyByZXByb2R1Y2UgaXQuIChIb3N0IGNwdSBpbnRl bCBvciBhbWQsIEd1ZXN0IGNwdSBxZW11NjQva3ZtNjQvaG9zdCkuDQo+IA0KPiBUaGV5IGFyZSBh bHNvIGEgYnVncmVwb3J0IG9uIHRoZSBmcmVlYnNkIG1haWxpbmcgaGVyZToNCj4gDQo+IGh0dHA6 Ly9saXN0cy5mcmVlYnNkLm9yZy9waXBlcm1haWwvZnJlZWJzZC1hbWQ2NC8yMDEzLUphbnVhcnkv MDE1MDkyLmh0bWwNCg== From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:46650) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDGfR-0003bh-P4 for qemu-devel@nongnu.org; Wed, 06 Mar 2013 10:54:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDGfP-0001Ip-1g for qemu-devel@nongnu.org; Wed, 06 Mar 2013 10:54:09 -0500 Received: from mx1.redhat.com ([209.132.183.28]:44710) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDGfO-0001IU-R5 for qemu-devel@nongnu.org; Wed, 06 Mar 2013 10:54:06 -0500 Message-ID: <51376719.50602@redhat.com> Date: Wed, 06 Mar 2013 16:56:09 +0100 From: Laszlo Ersek MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> In-Reply-To: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Dietmar Maurer Cc: "qemu-devel@nongnu.org" On 03/06/13 09:21, Dietmar Maurer wrote: > Using qemu 1.4.0: >=20 > =20 >=20 > # qemu -hda test.raw -m 512 -cdrom > pfSense-LiveCD-2.0.2-RELEASE-amd64-20121207-2239.iso >=20 > =20 >=20 > Results in: >=20 > =20 >=20 > trap 12: page fault while in kernel mode >=20 > =85 >=20 > stopped at x86bios_emu_rdw+0x2f: movzwl (%rbx),%eax >=20 > =20 >=20 > Any ideas? Can somebody reproduce that? I found this on the web: 351 static uint16_t 352 x86bios_emu_rdw(struct x86emu *emu, uint32_t addr) 353 { 354 uint16_t *va; 355=09 356 va =3D x86bios_get_pages(addr, sizeof(*va)); 357 if (va =3D=3D NULL) 358 x86bios_set_fault(emu, addr); 359=09 360 #ifndef __NO_STRICT_ALIGNMENT 361 if ((addr & 1) !=3D 0) 362 return (le16dec(va)); 363 else 364 #endif 365 return (le16toh(*va)); 366 } "movzwl (%rbx),%eax" reads the 16-bit word at %rbx, copies it into the low 16 bits of %eax, and clears the rest of the bits in %eax. This probably corresponds to the *va dereference at the end of the function. (le16toh() is compiled out if the platform is little endian.) Either x86bios_get_pages() returns garbage, or "addr" is garbage on input. You'll have to trace back the callpath from x86bios_emu_rdw(), possibly instrumenting it with printk()s (or whatever it's called in FreeBSD). Laszlo From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:41226) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDNVW-0000IY-24 for qemu-devel@nongnu.org; Wed, 06 Mar 2013 18:12:26 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDNVT-0001uZ-Um for qemu-devel@nongnu.org; Wed, 06 Mar 2013 18:12:21 -0500 Received: from hall.aurel32.net ([2001:470:1f15:c4f::1]:51477) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDNVT-0001u5-OJ for qemu-devel@nongnu.org; Wed, 06 Mar 2013 18:12:19 -0500 Date: Thu, 7 Mar 2013 00:12:08 +0100 From: Aurelien Jarno Message-ID: <20130306231208.GA17594@ohm.aurel32.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Dietmar Maurer Cc: seabios@seabios.org, "qemu-devel@nongnu.org" , qemu-stable@nongnu.org On Wed, Mar 06, 2013 at 08:21:11AM +0000, Dietmar Maurer wrote: > Using qemu 1.4.0: > > # qemu -hda test.raw -m 512 -cdrom pfSense-LiveCD-2.0.2-RELEASE-amd64-20121207-2239.iso > > Results in: > > trap 12: page fault while in kernel mode > ... > stopped at x86bios_emu_rdw+0x2f: movzwl (%rbx),%eax > > Any ideas? Can somebody reproduce that? > > To get the FreeBSD VM boot use the console, enter the boot loader, then: > # set hint.atkbd.0.disabled="1" > # boot > > But that disables the keyboard. I was actually digging about that problem. It is indeed present in version 1.4.0, but is fixed in the current git master. The problem is actually not directly in QEMU but in seabios, the update to version 1.7.2.1 commit 5c75fb10) fixes the issue. Maybe it is worth cherry-picking it into stable-1.4 (hence the Cc:). In the meantime using bios.bin from master with QEMU version 1.4.0 should also fix the issue. What is strange is the seabios commit fixing the issue: commit 4219149ad2b783abfa61e80e9e9f6910db0c76c9 Author: Kevin O'Connor Date: Sun Feb 17 10:56:10 2013 -0500 build: Don't require $(OUT) to be a sub-directory of the main directory. Remove references to "../" and "out/" from the build so that "make OUT=/a/b/c/" will work. Signed-off-by: Kevin O'Connor Maybe Kevin has an explanation? -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net http://www.aurel32.net From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:33473) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDP5n-0005uN-D1 for qemu-devel@nongnu.org; Wed, 06 Mar 2013 19:53:57 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDP5l-00067z-VN for qemu-devel@nongnu.org; Wed, 06 Mar 2013 19:53:55 -0500 Received: from mail-qa0-f49.google.com ([209.85.216.49]:53496) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDP5l-00067s-RA for qemu-devel@nongnu.org; Wed, 06 Mar 2013 19:53:53 -0500 Received: by mail-qa0-f49.google.com with SMTP id o13so70qaj.15 for ; Wed, 06 Mar 2013 16:53:53 -0800 (PST) Date: Wed, 6 Mar 2013 19:53:51 -0500 From: Kevin O'Connor Message-ID: <20130307005351.GA19296@morn.localdomain> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130306231208.GA17594@ohm.aurel32.net> Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: qemu-stable@nongnu.org, seabios@seabios.org, Dietmar Maurer , "qemu-devel@nongnu.org" On Thu, Mar 07, 2013 at 12:12:08AM +0100, Aurelien Jarno wrote: > On Wed, Mar 06, 2013 at 08:21:11AM +0000, Dietmar Maurer wrote: > > Using qemu 1.4.0: > > > > # qemu -hda test.raw -m 512 -cdrom pfSense-LiveCD-2.0.2-RELEASE-amd64-20121207-2239.iso > > > > Results in: > > > > trap 12: page fault while in kernel mode > > ... > > stopped at x86bios_emu_rdw+0x2f: movzwl (%rbx),%eax > > > > Any ideas? Can somebody reproduce that? > > > > To get the FreeBSD VM boot use the console, enter the boot loader, then: > > # set hint.atkbd.0.disabled="1" > > # boot > > > > But that disables the keyboard. > > I was actually digging about that problem. It is indeed present in > version 1.4.0, but is fixed in the current git master. The problem is > actually not directly in QEMU but in seabios, the update to version > 1.7.2.1 commit 5c75fb10) fixes the issue. Maybe it is worth > cherry-picking it into stable-1.4 (hence the Cc:). In the meantime > using bios.bin from master with QEMU version 1.4.0 should also fix the > issue. > > What is strange is the seabios commit fixing the issue: > > commit 4219149ad2b783abfa61e80e9e9f6910db0c76c9 > Author: Kevin O'Connor > Date: Sun Feb 17 10:56:10 2013 -0500 > > build: Don't require $(OUT) to be a sub-directory of the main directory. That change is definitely just build related - I don't see how it could impact the final SeaBIOS binary. How did you conclude that this commit is what fixes the issue? -Kevin From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:38962) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDPbl-00049W-Kt for qemu-devel@nongnu.org; Wed, 06 Mar 2013 20:27:01 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDPbi-0007nW-Ep for qemu-devel@nongnu.org; Wed, 06 Mar 2013 20:26:57 -0500 Message-ID: <5137ED49.3030204@redhat.com> Date: Thu, 07 Mar 2013 02:28:41 +0100 From: Laszlo Ersek MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> In-Reply-To: <20130307005351.GA19296@morn.localdomain> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin O'Connor Cc: Anthony Liguori , seabios@seabios.org, "qemu-devel@nongnu.org" , qemu-stable@nongnu.org, Gerd Hoffmann , Dietmar Maurer , Aurelien Jarno On 03/07/13 01:53, Kevin O'Connor wrote: > On Thu, Mar 07, 2013 at 12:12:08AM +0100, Aurelien Jarno wrote: >> On Wed, Mar 06, 2013 at 08:21:11AM +0000, Dietmar Maurer wrote: >>> Using qemu 1.4.0: >>> >>> # qemu -hda test.raw -m 512 -cdrom pfSense-LiveCD-2.0.2-RELEASE-amd64-20121207-2239.iso >>> >>> Results in: >>> >>> trap 12: page fault while in kernel mode >>> ... >>> stopped at x86bios_emu_rdw+0x2f: movzwl (%rbx),%eax >>> >>> Any ideas? Can somebody reproduce that? >>> >>> To get the FreeBSD VM boot use the console, enter the boot loader, then: >>> # set hint.atkbd.0.disabled="1" >>> # boot >>> >>> But that disables the keyboard. Apparently the call may come from get_typematic() [sys/dev/atkbdc/atkbd.c]; it wants to retrieve the typematic rate of the keyboard using the BIOS. >> >> I was actually digging about that problem. It is indeed present in >> version 1.4.0, but is fixed in the current git master. The problem is >> actually not directly in QEMU but in seabios, the update to version >> 1.7.2.1 commit 5c75fb10) fixes the issue. Maybe it is worth >> cherry-picking it into stable-1.4 (hence the Cc:). In the meantime >> using bios.bin from master with QEMU version 1.4.0 should also fix the >> issue. >> >> What is strange is the seabios commit fixing the issue: >> >> commit 4219149ad2b783abfa61e80e9e9f6910db0c76c9 >> Author: Kevin O'Connor >> Date: Sun Feb 17 10:56:10 2013 -0500 >> >> build: Don't require $(OUT) to be a sub-directory of the main directory. > > That change is definitely just build related - I don't see how it > could impact the final SeaBIOS binary. How did you conclude that this > commit is what fixes the issue? Going out on a limb, I suspect qemu commit 5f876756 instead. (It's a bit risky for me to say that, as Aurelien may have taken qemu-1.4.0 as fixed point and bisected seabios rel-1.7.2..rel-1.7.2.1 against it: $ git log --oneline --reverse rel-1.7.2..rel-1.7.2.1 f396871 Update tools/acpi_extract.py to handle iasl 20130117 release. 12e8199 USB-EHCI: Fix null pointer assignment d75c22f Fix Makefile - don't reference "out/" directly, instead use "$(OUT)". 4219149 build: Don't require $(OUT) to be a sub-directory of the main directory. e5fe4f9 Verify CC is valid during build tests. 2b57726 seabios q35: Enable all PIRQn IRQs at startup 985a9d3 seabios q35: Add new PCI slot to irq routing function 88cb66e seabios: Add a dummy PCI slot to irq mapping function ) I'm suspecting said qemu commit because: - it's the final commit in 1.4 for file "pc-bios/bios.bin", - somewhat out of the ordinary, apparently, it was Anthony to rebuild the bios, and he used gcc-4.7.2 on Fedora 18, - while normally Gerd does the updates (see both before and after 5f876756), and I know for a fact Gerd uses RHEL-6. I think the gcc version Anthony was using miscompiled SeaBIOS (in the sense that FreeBSD chokes on it), and the 1.7.2.1 binary from Gerd restores peace *only* because Gerd relied on RHEL-6 gcc, and not because of the SeaBIOS changes from 1.7.2 to 1.7.2.1. $ git log --reverse -- pc-bios/bios.bin Probably works, but never appeared in a separate release: commit 3588185b8396eb97fd9efd41c2b97775465f67c4 Author: Gerd Hoffmann Date: Mon Jan 21 09:17:16 2013 +0100 seabios: update to 1.7.2 release Not that many changes as we have a pretty recent git snapshot in master already: Hannes Reinecke (1): megasas: Invert PCI device selection Kevin O'Connor (2): Minor: Separate UUID display from F12 boot prompt. boot: Support "halt" in the boot order to prevent default boot attempts. Laszlo Ersek (1): display_uuid(): fix incomplete check after the loop Paolo Bonzini (1): vgabios: implement AX=1120H..1124H functions Exposes problem (released in qemu-1.4.0): commit 5f876756c57c15f5e14d4136fc432b74f05f082b Author: Anthony Liguori Date: Wed Feb 6 05:12:06 2013 -0600 bios: recompile BIOS SeaBIOS is really close to spilling over to 256k. Until we can better handle migration across RAM block size changes, recompile SeaBIOS with a compiler that causes the binary to still fit in 128k. This was built with: gcc version 4.7.2 20121109 (Red Hat 4.7.2-8) (GCC) On 64-bit Fedora 18. Signed-off-by: Anthony Liguori Works again (unreleased), according to Aurelien's testing: commit 5c75fb10029c5fd1e705a6ef5d698fbea06c7a33 Author: Gerd Hoffmann Date: Thu Feb 28 09:18:56 2013 +0100 update seabios to 1.7.2.1 Alex Williamson (3): seabios q35: Enable all PIRQn IRQs at startup seabios q35: Add new PCI slot to irq routing function seabios: Add a dummy PCI slot to irq mapping function Avik Sil (1): USB-EHCI: Fix null pointer assignment Kevin O'Connor (4): Update tools/acpi_extract.py to handle iasl 20130117 release. Fix Makefile - don't reference "out/" directly, instead use "$(OUT)". build: Don't require $(OUT) to be a sub-directory of the main directory. Verify CC is valid during build tests. Signed-off-by: Gerd Hoffmann (I re-wrapped the commit messages for legibility.) Laszlo From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:43837) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDQ6f-0001kz-15 for qemu-devel@nongnu.org; Wed, 06 Mar 2013 20:58:59 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDQ6Z-0008A6-SO for qemu-devel@nongnu.org; Wed, 06 Mar 2013 20:58:52 -0500 Received: from foo.stuge.se ([212.116.89.98]:37610) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDQ6Z-00089d-H4 for qemu-devel@nongnu.org; Wed, 06 Mar 2013 20:58:47 -0500 Message-ID: <20130307015844.26170.qmail@stuge.se> Date: Thu, 7 Mar 2013 02:58:44 +0100 From: Peter Stuge References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5137ED49.3030204@redhat.com> Subject: Re: [Qemu-devel] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Laszlo Ersek Cc: Anthony Liguori , seabios@seabios.org, "qemu-devel@nongnu.org" , qemu-stable@nongnu.org, Kevin O'Connor , Gerd Hoffmann , Dietmar Maurer , Aurelien Jarno Laszlo Ersek wrote: > Going out on a limb, I suspect qemu commit 5f876756 instead. .. > I think the gcc version Anthony was using miscompiled SeaBIOS Yeah, it is very common. Lots of distributions patch their toolchains such that they don't compile firmware code correctly. Firmware isn't a common target, so I understand that it happens. For coreboot we recommend to build a vanilla toolchain using known good versions. We also have a script to do that. (The script is at util/crossgcc/buildgcc in the coreboot repo.) //Peter From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:51661) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDU4M-00044u-87 for qemu-devel@nongnu.org; Thu, 07 Mar 2013 01:12:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDU4J-0005Gh-6D for qemu-devel@nongnu.org; Thu, 07 Mar 2013 01:12:46 -0500 Received: from mail-qe0-f54.google.com ([209.85.128.54]:51443) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDU4J-0005GK-2k for qemu-devel@nongnu.org; Thu, 07 Mar 2013 01:12:43 -0500 Received: by mail-qe0-f54.google.com with SMTP id i11so65472qej.27 for ; Wed, 06 Mar 2013 22:12:42 -0800 (PST) MIME-Version: 1.0 Sender: cardoe@cardoe.com In-Reply-To: <20130307015844.26170.qmail@stuge.se> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> Date: Thu, 7 Mar 2013 00:12:41 -0600 Message-ID: From: Doug Goldstein Content-Type: text/plain; charset=UTF-8 Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Laszlo Ersek , Kevin O'Connor , Anthony Liguori , seabios@seabios.org, "qemu-devel@nongnu.org" , qemu-stable@nongnu.org, Gerd Hoffmann , Dietmar Maurer , Aurelien Jarno On Wed, Mar 6, 2013 at 7:58 PM, Peter Stuge wrote: > Laszlo Ersek wrote: >> Going out on a limb, I suspect qemu commit 5f876756 instead. > .. >> I think the gcc version Anthony was using miscompiled SeaBIOS > > Yeah, it is very common. Lots of distributions patch their > toolchains such that they don't compile firmware code correctly. > > Firmware isn't a common target, so I understand that it happens. > > For coreboot we recommend to build a vanilla toolchain using known > good versions. We also have a script to do that. (The script is at > util/crossgcc/buildgcc in the coreboot repo.) > > > //Peter > Peter, Not sure if you or Kevin builds the coreboot images at http://code.coreboot.org/p/seabios/downloads/, but would you guys consider building point release as well (e.g. 1.7.2.1), if yes then my next question... The rest of the ML, Would qemu consider using those blobs rather than different developers using their distro toolchain to build up a random commit ID. I say random only because often qemu releases ship with a non-release seabios. In this past there's been other issues related to seabios + qemu, that I've solved in Gentoo by simply using the coreboot seabios images after some troubleshooting help from Peter. Similarly our Ubuntu OpenStack machines at work had quirks resolved by dropping the coreboot seabios images on them. -- Doug Goldstein From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:55364) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDUNq-0002Uz-9I for qemu-devel@nongnu.org; Thu, 07 Mar 2013 01:32:55 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDUNm-0002tt-28 for qemu-devel@nongnu.org; Thu, 07 Mar 2013 01:32:54 -0500 Received: from mail-la0-x232.google.com ([2a00:1450:4010:c03::232]:33378) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDUNl-0002th-Rz for qemu-devel@nongnu.org; Thu, 07 Mar 2013 01:32:50 -0500 Received: by mail-la0-f50.google.com with SMTP id ec20so96857lab.9 for ; Wed, 06 Mar 2013 22:32:48 -0800 (PST) MIME-Version: 1.0 In-Reply-To: References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> From: Peter Maydell Date: Thu, 7 Mar 2013 14:32:28 +0800 Message-ID: Content-Type: text/plain; charset=UTF-8 Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Doug Goldstein Cc: Anthony Liguori , seabios@seabios.org, qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Kevin O'Connor , Gerd Hoffmann , Laszlo Ersek , Dietmar Maurer , Aurelien Jarno On 7 March 2013 14:12, Doug Goldstein wrote: > On Wed, Mar 6, 2013 at 7:58 PM, Peter Stuge wrote: >> For coreboot we recommend to build a vanilla toolchain using known >> good versions. We also have a script to do that. (The script is at >> util/crossgcc/buildgcc in the coreboot repo.) > Would qemu consider using those blobs rather than different developers > using their distro toolchain to build up a random commit ID. I say > random only because often qemu releases ship with a non-release > seabios. The right way to fix this is for QEMU to stop shipping binary BIOS blobs in its source tarballs. Instead the developers of the BIOS should release them separately with an appropriate testing and release process which ensures that they're compiled with whichever toolchain is required. (just my opinion of course, which I state mostly to give people something to disagree with...) -- PMM From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:34065) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDV56-0007zm-Bt for qemu-devel@nongnu.org; Thu, 07 Mar 2013 02:17:37 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDV54-0007lw-5S for qemu-devel@nongnu.org; Thu, 07 Mar 2013 02:17:36 -0500 Message-ID: <51383F0B.8050704@msgid.tls.msk.ru> Date: Thu, 07 Mar 2013 11:17:31 +0400 From: Michael Tokarev MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Doug Goldstein Cc: Anthony Liguori , seabios@seabios.org, qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Kevin O'Connor , Gerd Hoffmann , Laszlo Ersek , Dietmar Maurer , Aurelien Jarno 07.03.2013 10:12, Doug Goldstein wrote: > On Wed, Mar 6, 2013 at 7:58 PM, Peter Stuge wrote: >> Yeah, it is very common. Lots of distributions patch their >> toolchains such that they don't compile firmware code correctly. >> >> Firmware isn't a common target, so I understand that it happens. >> >> For coreboot we recommend to build a vanilla toolchain using known >> good versions. We also have a script to do that. (The script is at >> util/crossgcc/buildgcc in the coreboot repo.) [] > Not sure if you or Kevin builds the coreboot images at > http://code.coreboot.org/p/seabios/downloads/, but would you guys > consider building point release as well (e.g. 1.7.2.1), if yes then my > next question... > > The rest of the ML, > > Would qemu consider using those blobs rather than different developers > using their distro toolchain to build up a random commit ID. I say > random only because often qemu releases ship with a non-release > seabios. > > In this past there's been other issues related to seabios + qemu, that > I've solved in Gentoo by simply using the coreboot seabios images > after some troubleshooting help from Peter. Similarly our Ubuntu > OpenStack machines at work had quirks resolved by dropping the > coreboot seabios images on them. Just a note, or an "alternative opinion", so to say. In Debian, we have a social contract which, among other things, ensures that the binaries you, as a user, get, comes with source which you can modify on the system you installed. This requires, for example, that all binaries shipped are actually built from the corresponding source, and that no blobs from whatever other sources are used, ever. We don't even ship any upstream blobs in the debian qemu _source_ package: we repack upstream qemu.tar.gz by removing these blobs. So from this PoV, it'd be better if upstream didn't ship any blobs at all, -- we wont need to repack the upstream .tar.gz ;) FWIW, prpbably we were lucky so far: we had almost no issues with (mis)compiling of various ROM codes (bochsbios, seabios, vgabios, pxe roms, various sparc/ppc firmware etc) using toolchains provided by Debian. Thanks, /mjt From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:51100) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDWQ9-0006Un-RL for qemu-devel@nongnu.org; Thu, 07 Mar 2013 03:43:27 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDWQ8-0002WM-Ap for qemu-devel@nongnu.org; Thu, 07 Mar 2013 03:43:25 -0500 Date: Thu, 7 Mar 2013 09:43:04 +0100 From: Aurelien Jarno Message-ID: <20130307084304.GA17400@ohm.aurel32.net> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20130307005351.GA19296@morn.localdomain> Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin O'Connor Cc: qemu-stable@nongnu.org, seabios@seabios.org, Dietmar Maurer , "qemu-devel@nongnu.org" On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote: > On Thu, Mar 07, 2013 at 12:12:08AM +0100, Aurelien Jarno wrote: > > On Wed, Mar 06, 2013 at 08:21:11AM +0000, Dietmar Maurer wrote: > > > Using qemu 1.4.0: > > > > > > # qemu -hda test.raw -m 512 -cdrom pfSense-LiveCD-2.0.2-RELEASE-amd64-20121207-2239.iso > > > > > > Results in: > > > > > > trap 12: page fault while in kernel mode > > > ... > > > stopped at x86bios_emu_rdw+0x2f: movzwl (%rbx),%eax > > > > > > Any ideas? Can somebody reproduce that? > > > > > > To get the FreeBSD VM boot use the console, enter the boot loader, then: > > > # set hint.atkbd.0.disabled="1" > > > # boot > > > > > > But that disables the keyboard. > > > > I was actually digging about that problem. It is indeed present in > > version 1.4.0, but is fixed in the current git master. The problem is > > actually not directly in QEMU but in seabios, the update to version > > 1.7.2.1 commit 5c75fb10) fixes the issue. Maybe it is worth > > cherry-picking it into stable-1.4 (hence the Cc:). In the meantime > > using bios.bin from master with QEMU version 1.4.0 should also fix the > > issue. > > > > What is strange is the seabios commit fixing the issue: > > > > commit 4219149ad2b783abfa61e80e9e9f6910db0c76c9 > > Author: Kevin O'Connor > > Date: Sun Feb 17 10:56:10 2013 -0500 > > > > build: Don't require $(OUT) to be a sub-directory of the main directory. > > That change is definitely just build related - I don't see how it > could impact the final SeaBIOS binary. How did you conclude that this > commit is what fixes the issue? > I did a git bisect to find the commit fixing the issue. Then, as I was not believing the result, I tried the following sequence a dozen of times (for some unknown reasons the FreeBSD install CD doesn't exhibit the issue, so I used the Debian GNU/kFreeBSD installer): | mkdir qemu-freebsd-bug | cd qemu-freebsd-bug | | wget http://ftp.debian.org/debian/dists/squeeze/main/installer-kfreebsd-amd64/current/images/netboot/mini.iso | | git clone git://git.qemu.org/qemu.git | cd qemu | git checkout -b stable-1.4 v1.4.0 | ./configure --target-list=x86_64-softmmu | make | cd .. | | git clone git://git.seabios.org/seabios.git | cd seabios | git checkout -b 1.7.2-stable origin/1.7.2-stable | git reset --hard 4219149ad2b783abfa61e80e9e9f6910db0c76c9 | make | cp out/bios.bin ../qemu/pc-bios | cd.. | | # debian-installer boots correctly | ./qemu/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -cdrom mini.iso | | cd seabios | git reset --hard d75c22fcb6521dad11428b65789d92f89675c600 | git clean -fdx | make | cp out/bios.bin ../qemu/pc-bios | cd .. | | # debian-installer fails to boot | ./qemu/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -cdrom mini.iso Maybe I am doing something wrong or there is a bug in my toolchain (Debian Sid). It would be nice if someone could try to reproduce that on another distro/system. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net http://www.aurel32.net From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:34430) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDYpD-0001OQ-3D for qemu-devel@nongnu.org; Thu, 07 Mar 2013 06:17:31 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDYpB-0004eY-UF for qemu-devel@nongnu.org; Thu, 07 Mar 2013 06:17:27 -0500 Message-ID: <5138772E.909@redhat.com> Date: Thu, 07 Mar 2013 12:17:02 +0100 From: Gerd Hoffmann MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> In-Reply-To: <5137ED49.3030204@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Laszlo Ersek Cc: Anthony Liguori , seabios@seabios.org, "qemu-devel@nongnu.org" , qemu-stable@nongnu.org, Kevin O'Connor , Dietmar Maurer , Aurelien Jarno Hi, > Probably works, but never appeared in a separate release: > > commit 3588185b8396eb97fd9efd41c2b97775465f67c4 > Author: Gerd Hoffmann > Date: Mon Jan 21 09:17:16 2013 +0100 > > seabios: update to 1.7.2 release Built with "gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3)" (rhel-6). > commit 5f876756c57c15f5e14d4136fc432b74f05f082b > Author: Anthony Liguori > Date: Wed Feb 6 05:12:06 2013 -0600 > > bios: recompile BIOS > gcc version 4.7.2 20121109 (Red Hat 4.7.2-8) (GCC) > commit 5c75fb10029c5fd1e705a6ef5d698fbea06c7a33 > Author: Gerd Hoffmann > Date: Thu Feb 28 09:18:56 2013 +0100 > > update seabios to 1.7.2.1 Built with "gcc (GCC) 4.7.2 20121015 (Red Hat 4.7.2-5)" (rhel-6 devtoolkit-1.1) as gcc 4.4 builds are too big and bumb seabios size from 128k to 256k. Which was the reason for anthonys rebuild. cheers, Gerd From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:42883) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDZRX-0004tJ-0F for qemu-devel@nongnu.org; Thu, 07 Mar 2013 06:57:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDZRV-0001AL-2Y for qemu-devel@nongnu.org; Thu, 07 Mar 2013 06:57:02 -0500 Message-ID: <51388079.3010707@redhat.com> Date: Thu, 07 Mar 2013 12:56:41 +0100 From: Gerd Hoffmann MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> In-Reply-To: <51383F0B.8050704@msgid.tls.msk.ru> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Michael Tokarev Cc: Anthony Liguori , Doug Goldstein , seabios@seabios.org, "qemu-devel@nongnu.org" , qemu-stable@nongnu.org, Kevin O'Connor , Laszlo Ersek , Dietmar Maurer , Aurelien Jarno Hi, >> Would qemu consider using those blobs rather than different developers >> using their distro toolchain to build up a random commit ID. I say >> random only because often qemu releases ship with a non-release >> seabios. It happened (well, the snapshot thing). But that isn't our preferred model, it was just bad release cycle coordination and we'll try to avoid doing it again. There is reason why we have a 1.7.2 stable branch now. The binary blobs are just a convenience thing because rebuilding the firmware might not be that easy. Not so much for virtualization where host + firmware are the same arch. But for emulation, where you need the -- say -- ppc slof on a x86 machine, and the binaries shipped allow people to get started without having to install (or compile) a cross compiler first. It is certainly not required to use blobs shipped. In fact the release tarballs include all the firmware submodules, so you can build the firmware yourself if you want. I've created roms/Makefile so you can easily rebuild the (x86) firmware. seabios is there, vgabios is there, patches for ipxe are in flight. > Just a note, or an "alternative opinion", so to say. In Debian, we have > a social contract which, among other things, ensures that the binaries > you, as a user, get, comes with source which you can modify on the > system you installed. This requires, for example, that all binaries > shipped are actually built from the corresponding source, and that > no blobs from whatever other sources are used, ever. That is perfectly fine. How to you handle ppc firmware for x86 hosts btw? Build on ppc buildhost and ship as noarch package? Or do you do cross compiler builds, so that users can patch+rebuild it on their x86 host too? > We don't even ship any upstream blobs in the debian qemu _source_ > package: we repack upstream qemu.tar.gz by removing these blobs. That's a bit over the top for my taste as the release tarballs include both source and blobs. Although it might be the debian release is just a bit too old for that, not fully sure with which release anthony started to include the firmware submodules, might be it was after 1.1 cheers, Gerd From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:46639) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDZj6-0008Sz-Qv for qemu-devel@nongnu.org; Thu, 07 Mar 2013 07:15:16 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDZj3-0007DQ-Eg for qemu-devel@nongnu.org; Thu, 07 Mar 2013 07:15:12 -0500 Message-ID: <51388536.3010305@redhat.com> Date: Thu, 07 Mar 2013 13:16:54 +0100 From: Laszlo Ersek MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> In-Reply-To: <20130307084304.GA17400@ohm.aurel32.net> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: "qemu-devel@nongnu.org" , Kevin O'Connor , seabios@seabios.org, qemu-stable@nongnu.org, Dietmar Maurer On 03/07/13 09:43, Aurelien Jarno wrote: > I did a git bisect to find the commit fixing the issue. Then, as I was > not believing the result, I tried the following sequence a dozen of > times (for some unknown reasons the FreeBSD install CD doesn't exhibit > the issue, so I used the Debian GNU/kFreeBSD installer): > > | mkdir qemu-freebsd-bug > | cd qemu-freebsd-bug > | > | wget http://ftp.debian.org/debian/dists/squeeze/main/installer-kfreebsd-amd64/current/images/netboot/mini.iso > | > | git clone git://git.qemu.org/qemu.git > | cd qemu > | git checkout -b stable-1.4 v1.4.0 > | ./configure --target-list=x86_64-softmmu > | make > | cd .. > | > | git clone git://git.seabios.org/seabios.git > | cd seabios > | git checkout -b 1.7.2-stable origin/1.7.2-stable > | git reset --hard 4219149ad2b783abfa61e80e9e9f6910db0c76c9 > | make > | cp out/bios.bin ../qemu/pc-bios > | cd.. > | > | # debian-installer boots correctly > | ./qemu/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -cdrom mini.iso > | > | cd seabios > | git reset --hard d75c22fcb6521dad11428b65789d92f89675c600 > | git clean -fdx > | make > | cp out/bios.bin ../qemu/pc-bios > | cd .. > | > | # debian-installer fails to boot > | ./qemu/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -cdrom mini.iso > > > Maybe I am doing something wrong or there is a bug in my toolchain > (Debian Sid). It would be nice if someone could try to reproduce that on > another distro/system. > Can you save the out/ directory from both builds and "diff -ur" them (maybe just the *.lds files)? I'm noticing that pathnames are embedded in some ELF section names (I hope this sentence makes sense), and when you build at d75c22fc, those pathnames contain dot-dot (".."), ie. two section name separators next to each other. Maybe that's not good; no idea. Laszlo From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:56082) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDaWt-0004Ao-Q4 for qemu-devel@nongnu.org; Thu, 07 Mar 2013 08:06:42 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDaWs-00078t-AM for qemu-devel@nongnu.org; Thu, 07 Mar 2013 08:06:39 -0500 Message-ID: <513890DB.2050805@msgid.tls.msk.ru> Date: Thu, 07 Mar 2013 17:06:35 +0400 From: Michael Tokarev MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> In-Reply-To: <51388079.3010707@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gerd Hoffmann Cc: Anthony Liguori , Doug Goldstein , seabios@seabios.org, "qemu-devel@nongnu.org" , qemu-stable@nongnu.org, Kevin O'Connor , Laszlo Ersek , Dietmar Maurer , Aurelien Jarno 07.03.2013 15:56, Gerd Hoffmann wrote: >> Just a note, or an "alternative opinion", so to say. In Debian, we have >> a social contract which, among other things, ensures that the binaries >> you, as a user, get, comes with source which you can modify on the >> system you installed. This requires, for example, that all binaries >> shipped are actually built from the corresponding source, and that >> no blobs from whatever other sources are used, ever. > > That is perfectly fine. How to you handle ppc firmware for x86 hosts > btw? Build on ppc buildhost and ship as noarch package? Or do you do > cross compiler builds, so that users can patch+rebuild it on their x86 > host too? "Foreign" firmware handling is an unsolved issue. Yes, basically, it is built on the corresponding build machine (eg, openbios-ppc is built on a ppc machine) and shipped as "noarch" package. The same is for X86 seabios/vgabios/etc stuff actually. So technically this is a violation in some way. However, that same ppc firmware actually can be rebuilt in a (qemu) virtual machine with the same debian release installed. That's why I say it is basically unsolved issue -- the "solution" isn't actuall a solution but a workaround instead. For added "fun", currently we ship optionroms from qemu in seabios source package, exactly because of this reason - seabios is what gets built on x86 only and is distributed on as "noarch" binary, while qemu is built on all architectures. And for another fun, we've several broken qemu architectures in Debian at the moment -- s390 and ppc64 are missing firmwares exactly because of the difficulties building them, despite the fact they're shipping in upstream qemu tarball. >> We don't even ship any upstream blobs in the debian qemu _source_ >> package: we repack upstream qemu.tar.gz by removing these blobs. > > That's a bit over the top for my taste as the release tarballs include > both source and blobs. Yes this is a bit extremistic, so to say. But this is the same base principle of Debian: we should ensure and demonstrate it all is buildable. Just mere presence of a blob in a tarball is already suspicious :) > Although it might be the debian release is just > a bit too old for that, not fully sure with which release anthony > started to include the firmware submodules, might be it was after 1.1 Nope, qemu started including sources before that. But it doesn't matter really, it is just the way how debian works, nothing to do with qemu really. Especially since most of these submodules are already packaged in Debian separately (be it because the qemu needs or due to other means). Thanks, /mjt From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:36837) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDbBa-0004Kp-42 for qemu-devel@nongnu.org; Thu, 07 Mar 2013 08:48:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDbBY-0004V8-3d for qemu-devel@nongnu.org; Thu, 07 Mar 2013 08:48:42 -0500 Date: Thu, 7 Mar 2013 14:48:33 +0100 From: Aurelien Jarno Message-ID: <20130307134833.GA22106@hall.aurel32.net> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> <51388536.3010305@redhat.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="k+w/mQv8wyuph6w0" Content-Disposition: inline In-Reply-To: <51388536.3010305@redhat.com> Sender: Aurelien Jarno Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Laszlo Ersek Cc: Kevin O'Connor , seabios@seabios.org, "qemu-devel@nongnu.org" , Dietmar Maurer , qemu-stable@nongnu.org --k+w/mQv8wyuph6w0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline On Thu, Mar 07, 2013 at 01:16:54PM +0100, Laszlo Ersek wrote: > On 03/07/13 09:43, Aurelien Jarno wrote: > > > I did a git bisect to find the commit fixing the issue. Then, as I was > > not believing the result, I tried the following sequence a dozen of > > times (for some unknown reasons the FreeBSD install CD doesn't exhibit > > the issue, so I used the Debian GNU/kFreeBSD installer): > > > > | mkdir qemu-freebsd-bug > > | cd qemu-freebsd-bug > > | > > | wget http://ftp.debian.org/debian/dists/squeeze/main/installer-kfreebsd-amd64/current/images/netboot/mini.iso > > | > > | git clone git://git.qemu.org/qemu.git > > | cd qemu > > | git checkout -b stable-1.4 v1.4.0 > > | ./configure --target-list=x86_64-softmmu > > | make > > | cd .. > > | > > | git clone git://git.seabios.org/seabios.git > > | cd seabios > > | git checkout -b 1.7.2-stable origin/1.7.2-stable > > | git reset --hard 4219149ad2b783abfa61e80e9e9f6910db0c76c9 > > | make > > | cp out/bios.bin ../qemu/pc-bios > > | cd.. > > | > > | # debian-installer boots correctly > > | ./qemu/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -cdrom mini.iso > > | > > | cd seabios > > | git reset --hard d75c22fcb6521dad11428b65789d92f89675c600 > > | git clean -fdx > > | make > > | cp out/bios.bin ../qemu/pc-bios > > | cd .. > > | > > | # debian-installer fails to boot > > | ./qemu/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -cdrom mini.iso > > > > > > Maybe I am doing something wrong or there is a bug in my toolchain > > (Debian Sid). It would be nice if someone could try to reproduce that on > > another distro/system. > > > > Can you save the out/ directory from both builds and "diff -ur" them > (maybe just the *.lds files)? Please find it attached. > I'm noticing that pathnames are embedded in some ELF section names (I > hope this sentence makes sense), and when you build at d75c22fc, those > pathnames contain dot-dot (".."), ie. two section name separators next > to each other. Maybe that's not good; no idea. > It's clearly the case, but I also don't know if it is a good solution or not. What is sure is that it also changes the address of the text section in bios.bin.elf. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net http://www.aurel32.net --k+w/mQv8wyuph6w0 Content-Type: application/octet-stream Content-Disposition: attachment; filename="seabios.qemu-freebsd-bug.diff.xz" Content-Transfer-Encoding: base64 /Td6WFoAAATm1rRGAgAhARgAAABHWDpD6KmfkxVdADIaSQnC+8fA2RtA07JIitFH+TGobb0n h17ZnsAeF72dh3/AC5I4GJnhjNB0B4oE1H+kQaZN2ushILnApWSxa53Abul6+0akALUer6U8 gSoV4dKC9g8NiI2s6S5jLpMcUcPvEhGp/GgL8Zab3PsP2WmPbvebizE7ocQOYxDgKPDGJ3Tk WhB2BHIhAemdTyNQ1iR1rzhD2JE7mbhdeQNpsO3pd4DGO0sB+PJLwa1CZ6iAi8gtcB0IfHvL 1y7vWwmuifJAvq4qp+Goyq0AD5HfFFIwp4tDzZ0dmu1ok+RyAFt1N9mlKmvUAkGiTML2OX6h p5gTDL+KKxeNPB9HBV8t8y5mxG5t4YMvz1PmoUqLrVBMAn2s+q6c1ClekRPmi7WJD1GLU1Gg C5KLSEn5rLKffsvlQhXxhDb/zPFRXKb+/6v4NfEpAu0IfI430RNDceDTUMDC0ovDfjSWTXQo e81OSx0c5EZPkUSmrVKNSmD/Auf+0eawvRumiXen53FF64EzVCuKg+aYQArlto33QlR3n8bO GdwrcjGBtGV08yBBo+8cG7JswbypLIFumO2YAwriAm8qPzgGUuKP7tOLMkLaTgQXtjKPwQnS 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--k+w/mQv8wyuph6w0-- From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:43761) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDbVz-0000Qt-2X for qemu-devel@nongnu.org; Thu, 07 Mar 2013 09:09:49 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDbVr-0003pt-Du for qemu-devel@nongnu.org; Thu, 07 Mar 2013 09:09:46 -0500 Received: from mail-qa0-f44.google.com ([209.85.216.44]:54682) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDbJm-00087z-5s for qemu-devel@nongnu.org; Thu, 07 Mar 2013 08:57:10 -0500 Received: by mail-qa0-f44.google.com with SMTP id bv4so3229207qab.17 for ; Thu, 07 Mar 2013 05:57:08 -0800 (PST) Date: Thu, 7 Mar 2013 08:57:06 -0500 From: Kevin O'Connor Message-ID: <20130307135706.GA14645@morn.localdomain> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130307084304.GA17400@ohm.aurel32.net> Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: qemu-stable@nongnu.org, seabios@seabios.org, Dietmar Maurer , "qemu-devel@nongnu.org" On Thu, Mar 07, 2013 at 09:43:04AM +0100, Aurelien Jarno wrote: > On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote: > > That change is definitely just build related - I don't see how it > > could impact the final SeaBIOS binary. How did you conclude that this > > commit is what fixes the issue? > > > > I did a git bisect to find the commit fixing the issue. Then, as I was > not believing the result, I tried the following sequence a dozen of > times (for some unknown reasons the FreeBSD install CD doesn't exhibit > the issue, so I used the Debian GNU/kFreeBSD installer): Thanks. I'll take a look at this tonight. If you get a chance first, could you try adding "make distclean; make clean" into the seabios steps? -Kevin From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:55344) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDaSi-0002ZD-Gk for qemu-devel@nongnu.org; Thu, 07 Mar 2013 08:02:26 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDaSf-0005cG-Lq for qemu-devel@nongnu.org; Thu, 07 Mar 2013 08:02:20 -0500 From: Don Slutz Message-ID: <51388FD1.2000201@terremark.com> Date: Thu, 7 Mar 2013 08:02:09 -0500 MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> In-Reply-To: <20130307084304.GA17400@ohm.aurel32.net> Content-Type: multipart/alternative; boundary="------------090305060209020604080300" Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: "qemu-devel@nongnu.org" , Kevin O'Connor , seabios@seabios.org, qemu-stable@nongnu.org, Dietmar Maurer --------------090305060209020604080300 Content-Type: text/plain; charset="ISO-8859-15"; format=flowed Content-Transfer-Encoding: 7bit On 03/07/13 03:43, Aurelien Jarno wrote: > On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote: >> >On Thu, Mar 07, 2013 at 12:12:08AM +0100, Aurelien Jarno wrote: >>> > >On Wed, Mar 06, 2013 at 08:21:11AM +0000, Dietmar Maurer wrote: [snip] >>> Maybe I am doing something wrong or there is a bug in my toolchain >>> (Debian Sid). It would be nice if someone could try to reproduce >>> that on another distro/system. > -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net > http://www.aurel32.net I reproduced this on "Fedora release 17 (Beefy Miracle)" 3.7.3-101.fc17.x86_64 doing the steps provided. -Don Slutz --------------090305060209020604080300 Content-Type: text/html; charset="ISO-8859-15" Content-Transfer-Encoding: 8bit
On 03/07/13 03:43, Aurelien Jarno wrote:
On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote:

> On Thu, Mar 07, 2013 at 12:12:08AM +0100, Aurelien Jarno wrote:

> > On Wed, Mar 06, 2013 at 08:21:11AM +0000, Dietmar Maurer wrote:
[snip]
Maybe I am doing something wrong or there is a bug in my toolchain (Debian Sid). It would be nice if someone could try to reproduce that on another distro/system. 
-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net

I reproduced this on "Fedora release 17 (Beefy Miracle)" 3.7.3-101.fc17.x86_64 doing the steps provided.
   -Don Slutz
--------------090305060209020604080300-- From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:40523) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDbNj-0006oX-Lk for qemu-devel@nongnu.org; Thu, 07 Mar 2013 09:01:23 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDbNb-0000xs-Ok for qemu-devel@nongnu.org; Thu, 07 Mar 2013 09:01:15 -0500 From: Don Slutz Message-ID: <51389D9B.4010000@terremark.com> Date: Thu, 7 Mar 2013 09:00:59 -0500 MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> <51388FD1.2000201@terremark.com> In-Reply-To: <51388FD1.2000201@terremark.com> Content-Type: multipart/alternative; boundary="------------040303030908030505020506" Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: "qemu-devel@nongnu.org" , Kevin O'Connor , seabios@seabios.org, qemu-stable@nongnu.org, Dietmar Maurer --------------040303030908030505020506 Content-Type: text/plain; charset="ISO-8859-15"; format=flowed Content-Transfer-Encoding: 7bit On 03/07/13 08:02, Don Slutz wrote: > On 03/07/13 03:43, Aurelien Jarno wrote: >> On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote: >>> >On Thu, Mar 07, 2013 at 12:12:08AM +0100, Aurelien Jarno wrote: >>>> > >On Wed, Mar 06, 2013 at 08:21:11AM +0000, Dietmar Maurer wrote: > [snip] >>>> Maybe I am doing something wrong or there is a bug in my toolchain >>>> (Debian Sid). It would be nice if someone could try to reproduce >>>> that on another distro/system. >> -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net >> http://www.aurel32.net > > I reproduced this on "Fedora release 17 (Beefy Miracle)" > 3.7.3-101.fc17.x86_64 doing the steps provided. > -Don Slutz Turns out that this is not the normal kind of issue. Newer seabios works, older does not: good * 88cb66e (HEAD, tag: rel-1.7.2.1, origin/1.7.2-stable, 1.7.2-stable) seabios: Add a dummy PCI slot to irq mapping funct good * 985a9d3 seabios q35: Add new PCI slot to irq routing function good * 2b57726 seabios q35: Enable all PIRQn IRQs at startup good * e5fe4f9 Verify CC is valid during build tests. good * 4219149 build: Don't require $(OUT) to be a sub-directory of the main directory. bad * d75c22f Fix Makefile - don't reference "out/" directly, instead use "$(OUT)". bad * 12e8199 USB-EHCI: Fix null pointer assignment bad * f396871 Update tools/acpi_extract.py to handle iasl 20130117 release. bad * 4bd8aeb (tag: rel-1.7.2) vgabios: implement AX=1120H..1124H functions good: Version: rel-1.7.2-4-g4219149-20130307_085117-don-lt.don.CloudSwitch.com Fixed space: 0xe05b-0x10000 total: 8101 slack: 5 Percent slack: 0.1% 16bit size: 39856 32bit segmented size: 1430 32bit flat size: 18778 32bit flat init size: 62400 Lowmem size: 2176 bad: Version: rel-1.7.2-3-gd75c22f-20130307_085345-don-lt.don.CloudSwitch.com Fixed space: 0xe05b-0x10000 total: 8101 slack: 5 Percent slack: 0.1% 16bit size: 39808 32bit segmented size: 1430 32bit flat size: 18778 32bit flat init size: 62400 Lowmem size: 2176 The 16bit size change is the only output change. The changed that fixed it: commit 4219149ad2b783abfa61e80e9e9f6910db0c76c9 Author: Kevin O'Connor Date: Sun Feb 17 10:56:10 2013 -0500 build: Don't require $(OUT) to be a sub-directory of the main directory. Remove references to "../" and "out/" from the build so that "make OUT=/a/b/c/" will work. Signed-off-by: Kevin O'Connor diff --git a/Makefile b/Makefile index a482c94..20da6d0 100644 --- a/Makefile +++ b/Makefile @@ -84,7 +84,7 @@ vpath %.S src vgasrc ################ Common build rules # Verify the build environment works. -TESTGCC:=$(shell CC="$(CC)" LD="$(LD)" IASL="$(IASL)" tools/test-build.sh) +TESTGCC:=$(shell OUT="$(OUT)" CC="$(CC)" LD="$(LD)" IASL="$(IASL)" tools/test-build.sh) ifeq "$(TESTGCC)" "-1" $(error "Please upgrade the build environment") endif @@ -97,7 +97,7 @@ endif # Do a whole file compile by textually including all C code. define whole-compile @echo " Compiling whole program $3" -$(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c +$(Q)printf '$(foreach i,$2,#include "$(CURDIR)/$i"\n)' > $3.tmp.c $(Q)$(CC) $1 $(CFLAGSWHOLE) -c $3.tmp.c -o $3 endef diff --git a/src/Kconfig b/src/Kconfig index 0b112ed..2c9100d 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -367,7 +367,7 @@ menu "BIOS Tables" Support generation of ACPI tables. endmenu -source ../vgasrc/Kconfig +source vgasrc/Kconfig menu "Debugging" config DEBUG_LEVEL diff --git a/tools/test-build.sh b/tools/test-build.sh index 7bd6d1f..ce0aca9 100755 --- a/tools/test-build.sh +++ b/tools/test-build.sh @@ -14,13 +14,13 @@ if [ $? -ne 0 ]; then exit 0 fi -mkdir -p out -TMPFILE1=out/tmp_testcompile1.c -TMPFILE1o=out/tmp_testcompile1.o -TMPFILE1_ld=out/tmp_testcompile1.lds -TMPFILE2=out/tmp_testcompile2.c -TMPFILE2o=out/tmp_testcompile2.o -TMPFILE3o=out/tmp_testcompile3.o +mkdir -p ${OUT} +TMPFILE1=${OUT}/tmp_testcompile1.c +TMPFILE1o=${OUT}/tmp_testcompile1.o +TMPFILE1_ld=${OUT}/tmp_testcompile1.lds +TMPFILE2=${OUT}/tmp_testcompile2.c +TMPFILE2o=${OUT}/tmp_testcompile2.o +TMPFILE3o=${OUT}/tmp_testcompile3.o # Test if ld's alignment handling is correct. This is a known problem # with the linker that ships with Ubuntu 11.04. -Don Slutz --------------040303030908030505020506 Content-Type: text/html; charset="ISO-8859-15" Content-Transfer-Encoding: 8bit
On 03/07/13 08:02, Don Slutz wrote:
On 03/07/13 03:43, Aurelien Jarno wrote:
On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote:

> On Thu, Mar 07, 2013 at 12:12:08AM +0100, Aurelien Jarno wrote:

> > On Wed, Mar 06, 2013 at 08:21:11AM +0000, Dietmar Maurer wrote:
[snip]
Maybe I am doing something wrong or there is a bug in my toolchain (Debian Sid). It would be nice if someone could try to reproduce that on another distro/system. 
-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net

I reproduced this on "Fedora release 17 (Beefy Miracle)" 3.7.3-101.fc17.x86_64 doing the steps provided.
   -Don Slutz

Turns out that this is not the normal kind of issue.  Newer seabios works, older does not:

good   * 88cb66e (HEAD, tag: rel-1.7.2.1, origin/1.7.2-stable, 1.7.2-stable) seabios: Add a dummy PCI slot to irq mapping funct
good   * 985a9d3 seabios q35: Add new PCI slot to irq routing function
good   * 2b57726 seabios q35: Enable all PIRQn IRQs at startup
good   * e5fe4f9 Verify CC is valid during build tests.
good   * 4219149 build: Don't require $(OUT) to be a sub-directory of the main directory.
bad    * d75c22f Fix Makefile - don't reference "out/" directly, instead use "$(OUT)".
bad    * 12e8199 USB-EHCI: Fix null pointer assignment
bad    * f396871 Update tools/acpi_extract.py to handle iasl 20130117 release.
bad    * 4bd8aeb (tag: rel-1.7.2) vgabios: implement AX=1120H..1124H functions


good:
Version: rel-1.7.2-4-g4219149-20130307_085117-don-lt.don.CloudSwitch.com
Fixed space: 0xe05b-0x10000  total: 8101  slack: 5  Percent slack: 0.1%
16bit size:           39856
32bit segmented size: 1430
32bit flat size:      18778
32bit flat init size: 62400
Lowmem size:          2176

bad:
Version: rel-1.7.2-3-gd75c22f-20130307_085345-don-lt.don.CloudSwitch.com
Fixed space: 0xe05b-0x10000  total: 8101  slack: 5  Percent slack: 0.1%
16bit size:           39808
32bit segmented size: 1430
32bit flat size:      18778
32bit flat init size: 62400
Lowmem size:          2176


The 16bit size change is the only output change.

The changed that fixed it:

commit 4219149ad2b783abfa61e80e9e9f6910db0c76c9
Author: Kevin O'Connor <kevin@koconnor.net>
Date:   Sun Feb 17 10:56:10 2013 -0500

    build: Don't require $(OUT) to be a sub-directory of the main directory.
   
    Remove references to "../" and "out/" from the build so that "make
    OUT=/a/b/c/" will work.
   
    Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

diff --git a/Makefile b/Makefile
index a482c94..20da6d0 100644
--- a/Makefile
+++ b/Makefile
@@ -84,7 +84,7 @@ vpath %.S src vgasrc
 ################ Common build rules
 
 # Verify the build environment works.
-TESTGCC:=$(shell CC="$(CC)" LD="$(LD)" IASL="$(IASL)" tools/test-build.sh)
+TESTGCC:=$(shell OUT="$(OUT)" CC="$(CC)" LD="$(LD)" IASL="$(IASL)" tools/test-build.sh)
 ifeq "$(TESTGCC)" "-1"
 $(error "Please upgrade the build environment")
 endif
@@ -97,7 +97,7 @@ endif
 # Do a whole file compile by textually including all C code.
 define whole-compile
 @echo "  Compiling whole program $3"
-$(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
+$(Q)printf '$(foreach i,$2,#include "$(CURDIR)/$i"\n)' > $3.tmp.c
 $(Q)$(CC) $1 $(CFLAGSWHOLE) -c $3.tmp.c -o $3
 endef
 
diff --git a/src/Kconfig b/src/Kconfig
index 0b112ed..2c9100d 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -367,7 +367,7 @@ menu "BIOS Tables"
             Support generation of ACPI tables.
 endmenu
 
-source ../vgasrc/Kconfig
+source vgasrc/Kconfig
 
 menu "Debugging"
     config DEBUG_LEVEL
diff --git a/tools/test-build.sh b/tools/test-build.sh
index 7bd6d1f..ce0aca9 100755
--- a/tools/test-build.sh
+++ b/tools/test-build.sh
@@ -14,13 +14,13 @@ if [ $? -ne 0 ]; then
     exit 0
 fi
 
-mkdir -p out
-TMPFILE1=out/tmp_testcompile1.c
-TMPFILE1o=out/tmp_testcompile1.o
-TMPFILE1_ld=out/tmp_testcompile1.lds
-TMPFILE2=out/tmp_testcompile2.c
-TMPFILE2o=out/tmp_testcompile2.o
-TMPFILE3o=out/tmp_testcompile3.o
+mkdir -p ${OUT}
+TMPFILE1=${OUT}/tmp_testcompile1.c
+TMPFILE1o=${OUT}/tmp_testcompile1.o
+TMPFILE1_ld=${OUT}/tmp_testcompile1.lds
+TMPFILE2=${OUT}/tmp_testcompile2.c
+TMPFILE2o=${OUT}/tmp_testcompile2.o
+TMPFILE3o=${OUT}/tmp_testcompile3.o
 
 # Test if ld's alignment handling is correct.  This is a known problem
 # with the linker that ships with Ubuntu 11.04.

  -Don Slutz
--------------040303030908030505020506-- From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:43726) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDbVt-0000Qm-Nj for qemu-devel@nongnu.org; Thu, 07 Mar 2013 09:09:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDbVl-0003ns-Cf for qemu-devel@nongnu.org; Thu, 07 Mar 2013 09:09:41 -0500 From: Don Slutz Message-ID: <51389F96.2090003@terremark.com> Date: Thu, 7 Mar 2013 09:09:26 -0500 MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> <20130307135706.GA14645@morn.localdomain> In-Reply-To: <20130307135706.GA14645@morn.localdomain> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin O'Connor Cc: "qemu-devel@nongnu.org" , seabios@seabios.org, qemu-stable@nongnu.org, Aurelien Jarno , Dietmar Maurer On 03/07/13 08:57, Kevin O'Connor wrote: > On Thu, Mar 07, 2013 at 09:43:04AM +0100, Aurelien Jarno wrote: >> On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote: >>> That change is definitely just build related - I don't see how it >>> could impact the final SeaBIOS binary. How did you conclude that this >>> commit is what fixes the issue? >>> >> I did a git bisect to find the commit fixing the issue. Then, as I was >> not believing the result, I tried the following sequence a dozen of >> times (for some unknown reasons the FreeBSD install CD doesn't exhibit >> the issue, so I used the Debian GNU/kFreeBSD installer): > Thanks. I'll take a look at this tonight. If you get a chance first, > could you try adding "make distclean; make clean" into the seabios > steps? > > -Kevin > > _______________________________________________ > SeaBIOS mailing list > SeaBIOS@seabios.org > http://www.seabios.org/mailman/listinfo/seabios make distclean;make clean Do not change what happens. git clean -fdx looks to be good enough. -Don From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:36792) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDcSN-00050M-5V for qemu-devel@nongnu.org; Thu, 07 Mar 2013 10:10:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDcSI-0000xa-52 for qemu-devel@nongnu.org; Thu, 07 Mar 2013 10:10:07 -0500 Received: from mail-lb0-f174.google.com ([209.85.217.174]:62448) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDcLt-0007C3-Mx for qemu-devel@nongnu.org; Thu, 07 Mar 2013 10:03:25 -0500 Received: by mail-lb0-f174.google.com with SMTP id l12so509854lbo.5 for ; Thu, 07 Mar 2013 07:03:24 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <51388079.3010707@redhat.com> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> From: Peter Maydell Date: Thu, 7 Mar 2013 23:03:04 +0800 Message-ID: Content-Type: text/plain; charset=UTF-8 Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gerd Hoffmann Cc: Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Kevin O'Connor , Laszlo Ersek , Dietmar Maurer , Aurelien Jarno On 7 March 2013 19:56, Gerd Hoffmann wrote: >> We don't even ship any upstream blobs in the debian qemu _source_ >> package: we repack upstream qemu.tar.gz by removing these blobs. > > That's a bit over the top for my taste as the release tarballs include > both source and blobs. qemu-linaro's source tarballs (and indeed git tree) drops the blobs as well. I didn't want to have to deal with the issues of making sure the sources were present and matched the blobs. In general having blobs in our allegedly source tarball is pretty ugly. Either it's a source release or it isn't. We can do a release-of-blobs tarball too if we want, but it doesn't need to be in the source tarball and it doesn't need to be in git either IMHO. -- PMM From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:49760) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDdBb-0008Vr-6g for qemu-devel@nongnu.org; Thu, 07 Mar 2013 10:56:53 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDdBZ-0001l3-PN for qemu-devel@nongnu.org; Thu, 07 Mar 2013 10:56:51 -0500 Message-ID: <5138B8B3.8070200@redhat.com> Date: Thu, 07 Mar 2013 16:56:35 +0100 From: Gerd Hoffmann MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Kevin O'Connor , Laszlo Ersek , Dietmar Maurer , Aurelien Jarno Hi, > In general having blobs in our allegedly source tarball is pretty > ugly. Either it's a source release or it isn't. We can do a > release-of-blobs tarball too if we want, but it doesn't need > to be in the source tarball This is easily doable, just an update to scripts/make-release to spew two tarballs (one source, one blobs). We probably want update the build process to build the blobs by default (if the compilers needed are installed). Blueswirl started that already for sparc firmware I think. > and it doesn't need to be in git > either IMHO. That one is a bit more tricky. The big advantage git has here is that the update of a blob is not different from other updates. It is just a pull request. Keeping source+binaries in sync is easy too: we can update submodule hash + blobs with a single git commit. The process needs to stay simple, otherwise we'll risk that the blobs we provide will bitrot ... cheers, Gerd From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:51513) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDdIE-0003Sh-TL for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:03:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDdI9-0003uN-FK for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:03:42 -0500 Received: from mail-lb0-f171.google.com ([209.85.217.171]:50850) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDdI9-0003u9-8g for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:03:37 -0500 Received: by mail-lb0-f171.google.com with SMTP id gg13so571656lbb.16 for ; Thu, 07 Mar 2013 08:03:36 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <5138B8B3.8070200@redhat.com> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> From: Peter Maydell Date: Fri, 8 Mar 2013 00:03:15 +0800 Message-ID: Content-Type: text/plain; charset=UTF-8 Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gerd Hoffmann Cc: Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Kevin O'Connor , Laszlo Ersek , Dietmar Maurer , Aurelien Jarno On 7 March 2013 23:56, Gerd Hoffmann wrote: > Peter Maydell wrote: >> In general having blobs in our allegedly source tarball is pretty >> ugly. Either it's a source release or it isn't. We can do a >> release-of-blobs tarball too if we want, but it doesn't need >> to be in the source tarball > > This is easily doable, just an update to scripts/make-release to spew > two tarballs (one source, one blobs). > > We probably want update the build process to build the blobs by default > (if the compilers needed are installed). Blueswirl started that already > for sparc firmware I think. Earlier in this thread it's been stated that this often produces subtly broken blobs... >> and it doesn't need to be in git >> either IMHO. > > That one is a bit more tricky. The big advantage git has here is that > the update of a blob is not different from other updates. It is just a > pull request. Keeping source+binaries in sync is easy too: we can > update submodule hash + blobs with a single git commit. You could put the sources for the binary blobs in their own git repo, and then have the blobs in that git repo rather than qemu mainline. -- PMM From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:52053) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDdKY-0005ej-Rg for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:06:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDdKT-00059k-TQ for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:06:06 -0500 Sender: Paolo Bonzini Message-ID: <5138BADC.1000208@redhat.com> Date: Thu, 07 Mar 2013 17:05:48 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> <51388FD1.2000201@terremark.com> <51389D9B.4010000@terremark.com> In-Reply-To: <51389D9B.4010000@terremark.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Don Slutz Cc: seabios@seabios.org, Dietmar Maurer , "qemu-devel@nongnu.org" , Aurelien Jarno , qemu-stable@nongnu.org Il 07/03/2013 15:00, Don Slutz ha scritto: > Turns out that this is not the normal kind of issue. Newer seabios > works, older does not: > > good * 88cb66e (HEAD, tag: rel-1.7.2.1, origin/1.7.2-stable, > 1.7.2-stable) seabios: Add a dummy PCI slot to irq mapping funct > good * 985a9d3 seabios q35: Add new PCI slot to irq routing function > good * 2b57726 seabios q35: Enable all PIRQn IRQs at startup > good * e5fe4f9 Verify CC is valid during build tests. > good * 4219149 build: Don't require $(OUT) to be a sub-directory of > the main directory. > bad * d75c22f Fix Makefile - don't reference "out/" directly, instead > use "$(OUT)". > bad * 12e8199 USB-EHCI: Fix null pointer assignment > bad * f396871 Update tools/acpi_extract.py to handle iasl 20130117 > release. > bad * 4bd8aeb (tag: rel-1.7.2) vgabios: implement AX=1120H..1124H > functions If so, you need to invert "bad" and "good" when bisecting. Did you? Paolo From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:54161) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDdTt-0003ji-3s for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:15:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDdTq-0008UK-P4 for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:15:44 -0500 Date: Thu, 7 Mar 2013 17:15:24 +0100 From: Aurelien Jarno Message-ID: <20130307161524.GB17594@ohm.aurel32.net> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> <20130307135706.GA14645@morn.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <20130307135706.GA14645@morn.localdomain> Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin O'Connor Cc: "qemu-devel@nongnu.org" , seabios@seabios.org, qemu-stable@nongnu.org, Dietmar Maurer On Thu, Mar 07, 2013 at 08:57:06AM -0500, Kevin O'Connor wrote: > On Thu, Mar 07, 2013 at 09:43:04AM +0100, Aurelien Jarno wrote: > > On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote: > > > That change is definitely just build related - I don't see how it > > > could impact the final SeaBIOS binary. How did you conclude that this > > > commit is what fixes the issue? > > > > > > > I did a git bisect to find the commit fixing the issue. Then, as I was > > not believing the result, I tried the following sequence a dozen of > > times (for some unknown reasons the FreeBSD install CD doesn't exhibit > > the issue, so I used the Debian GNU/kFreeBSD installer): > > Thanks. I'll take a look at this tonight. If you get a chance first, > could you try adding "make distclean; make clean" into the seabios > steps? > It doesn't change anything (which is more or less expected due to the git clean -fdx). I have tried to also copy acpi-dsdt.aml and it doesn't help (the file is the same in qemu v1.4.0, and in the "bad" and "good" version of seabios). -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net http://www.aurel32.net From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:56308) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDdag-0006x5-JU for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:22:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDdaa-0002Lr-CN for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:22:46 -0500 Date: Thu, 7 Mar 2013 17:21:58 +0100 From: Aurelien Jarno Message-ID: <20130307162158.GC17594@ohm.aurel32.net> References: <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Kevin O'Connor , Gerd Hoffmann , Laszlo Ersek , Dietmar Maurer On Fri, Mar 08, 2013 at 12:03:15AM +0800, Peter Maydell wrote: > On 7 March 2013 23:56, Gerd Hoffmann wrote: > > Peter Maydell wrote: > >> In general having blobs in our allegedly source tarball is pretty > >> ugly. Either it's a source release or it isn't. We can do a > >> release-of-blobs tarball too if we want, but it doesn't need > >> to be in the source tarball > > > > This is easily doable, just an update to scripts/make-release to spew > > two tarballs (one source, one blobs). > > > > We probably want update the build process to build the blobs by default > > (if the compilers needed are installed). Blueswirl started that already > > for sparc firmware I think. > > Earlier in this thread it's been stated that this often produces > subtly broken blobs... > Would it be possible to have a testsuite to validate such blobs. For example the breakage which happens recently is due to the size of the bios reaching 128kB. This is something easy to check. On the QEMU side, we should definitely have an autotest system trying to boot a few guests (and if possible with some !linux) to detect such issues. That's not something easy to do, maybe that could be a good GSoC project? -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurelien@aurel32.net http://www.aurel32.net From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:41486) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDe8i-0001Ke-Be for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:58:05 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDe8e-0007JB-40 for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:57:56 -0500 Received: from www.maurer-it.com ([213.129.239.114]:33366 helo=proxmox.maurer-it.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDdlF-0006iC-BT for qemu-devel@nongnu.org; Thu, 07 Mar 2013 11:33:41 -0500 From: Dietmar Maurer Date: Thu, 7 Mar 2013 16:33:00 +0000 Message-ID: <24E144B8C0207547AD09C467A8259F7557B2DB9D@lisa.maurer-it.com> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> In-Reply-To: Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell , Gerd Hoffmann Cc: Anthony Liguori , Doug Goldstein , "seabios@seabios.org" , Michael Tokarev , "qemu-stable@nongnu.org" , "qemu-devel@nongnu.org" , Kevin O'Connor , Laszlo Ersek , Aurelien Jarno PiBJbiBnZW5lcmFsIGhhdmluZyBibG9icyBpbiBvdXIgYWxsZWdlZGx5IHNvdXJjZSB0YXJiYWxs IGlzIHByZXR0eSB1Z2x5LiBFaXRoZXIgaXQncyBhDQo+IHNvdXJjZSByZWxlYXNlIG9yIGl0IGlz bid0LiBXZSBjYW4gZG8gYSByZWxlYXNlLW9mLWJsb2JzIHRhcmJhbGwgdG9vIGlmIHdlIHdhbnQs DQo+IGJ1dCBpdCBkb2Vzbid0IG5lZWQgdG8gYmUgaW4gdGhlIHNvdXJjZSB0YXJiYWxsIGFuZCBp dCBkb2Vzbid0IG5lZWQgdG8gYmUgaW4gZ2l0DQo+IGVpdGhlciBJTUhPLg0KDQpJIHRoaW5rIGl0 IGlzIHZlcnkgY29udmVuaWVudCB0byBoYXZlIHRoYXQgaW4gZ2l0LCBiZWNhdXNlIGV2ZXJ5b25l IGNhbiB0ZXN0IHdpdGggdGhlDQpzYW1lIGJpbmFyeSAtIHRvIGRldGVjdCBlcnJvciBsaWtlIHRo aXMgb25lLg0K From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:47716) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDg0R-0004bp-F0 for qemu-devel@nongnu.org; Thu, 07 Mar 2013 13:57:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDg0O-0002lQ-PT for qemu-devel@nongnu.org; Thu, 07 Mar 2013 13:57:31 -0500 Received: from foo.stuge.se ([212.116.89.98]:36533) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDg0O-0002kh-2l for qemu-devel@nongnu.org; Thu, 07 Mar 2013 13:57:28 -0500 Message-ID: <20130307185725.13917.qmail@stuge.se> Date: Thu, 7 Mar 2013 19:57:25 +0100 From: Peter Stuge References: <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> <20130307162158.GC17594@ohm.aurel32.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130307162158.GC17594@ohm.aurel32.net> Subject: Re: [Qemu-devel] [SeaBIOS] [Qemu-stable] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: Peter Maydell , Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Gerd Hoffmann , Dietmar Maurer Aurelien Jarno wrote: > > > We probably want update the build process to build the blobs by default > > > > Earlier in this thread it's been stated that this often produces > > subtly broken blobs... > > Would it be possible to have a testsuite to validate such blobs. The coreboot project has a test system which although not used much does allow distributed testing. Maybe it could be replicated for SeaBIOS. //Peter From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:38454) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDhNA-00017r-Hp for qemu-devel@nongnu.org; Thu, 07 Mar 2013 15:25:07 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDhN8-0001Fx-Tu for qemu-devel@nongnu.org; Thu, 07 Mar 2013 15:25:04 -0500 Received: from bombadil.infradead.org ([2001:4830:2446:ff00:4687:fcff:fea6:5117]:44864) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDhN8-00015A-QQ for qemu-devel@nongnu.org; Thu, 07 Mar 2013 15:25:02 -0500 Message-ID: <1362687867.32099.4.camel@i7.infradead.org> From: David Woodhouse Date: Thu, 07 Mar 2013 20:24:27 +0000 In-Reply-To: <5138B8B3.8070200@redhat.com> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> Content-Type: multipart/signed; micalg="sha1"; protocol="application/x-pkcs7-signature"; boundary="=-UdjoPhUjDt9ktt50zVZs" Mime-Version: 1.0 Subject: Re: [Qemu-devel] [SeaBIOS] [Qemu-stable] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gerd Hoffmann Cc: Peter Maydell , Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Dietmar Maurer , Aurelien Jarno --=-UdjoPhUjDt9ktt50zVZs Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2013-03-07 at 16:56 +0100, Gerd Hoffmann wrote: > > and it doesn't need to be in git either IMHO. >=20 > That one is a bit more tricky. The big advantage git has here is that > the update of a blob is not different from other updates. It is just > a pull request. Keeping source+binaries in sync is easy too: we can > update submodule hash + blobs with a single git commit. FWIW I find the binaries in git to be a PITA. I submitted a patch in January to fix the VGA BIOS but it's still broken in git. The one installed in /usr/share/qemu is fine, but whenever I build qemu from git I have to remember to *remove* the one in the git tree or it uses that instead... --=20 dwmw2 --=-UdjoPhUjDt9ktt50zVZs Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIUbjCCBjQw ggQcoAMCAQICAR4wDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoTDVN0YXJ0 Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNpZ25pbmcxKTAn BgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3MTAyNDIxMDE1NVoX DTE3MTAyNDIxMDE1NVowgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQKEw1TdGFydENvbSBMdGQuMSsw KQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWduaW5nMTgwNgYDVQQDEy9TdGFy dENvbSBDbGFzcyAxIFByaW1hcnkgSW50ZXJtZWRpYXRlIENsaWVudCBDQTCCASIwDQYJKoZIhvcN AQEBBQADggEPADCCAQoCggEBAMcJg8zOLdgasSmkLhOrlr6KMoOMpohBllVHrdRvEg/q6r8jR+EK 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eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDo5O-0000ac-PO for qemu-devel@nongnu.org; Thu, 07 Mar 2013 22:35:13 -0500 Received: from mail-qc0-x230.google.com ([2607:f8b0:400d:c01::230]:58701) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDo5O-0000aL-M3 for qemu-devel@nongnu.org; Thu, 07 Mar 2013 22:35:10 -0500 Received: by mail-qc0-f176.google.com with SMTP id n41so416015qco.35 for ; Thu, 07 Mar 2013 19:35:10 -0800 (PST) Date: Thu, 7 Mar 2013 22:35:07 -0500 From: Kevin O'Connor Message-ID: <20130308033507.GA31979@morn.localdomain> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130307084304.GA17400@ohm.aurel32.net> Subject: Re: [Qemu-devel] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: qemu-stable@nongnu.org, seabios@seabios.org, Dietmar Maurer , "qemu-devel@nongnu.org" On Thu, Mar 07, 2013 at 09:43:04AM +0100, Aurelien Jarno wrote: > On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote: > > That change is definitely just build related - I don't see how it > > could impact the final SeaBIOS binary. How did you conclude that this > > commit is what fixes the issue? > > > > I did a git bisect to find the commit fixing the issue. Then, as I was > not believing the result, I tried the following sequence a dozen of > times (for some unknown reasons the FreeBSD install CD doesn't exhibit > the issue, so I used the Debian GNU/kFreeBSD installer): [...] Thanks for the detailed bug report. Here's what I see going on: - the SeaBIOS 4219149a commit does change the resulting binary ever so slightly - the src/virtio_ring.c code has a reference to __FILE__ (the only code in SeaBIOS that does that), and due to slightly different build rules in this commit it evaluates to a slightly different string. - the freebsd crash has nothing to do with 4219149a or src/virtio_ring.c - instead, random changes in the seabios binary layout can cause (or avoid) the crash. You can see this in action by modifying seabios to have higher debug levels, commenting out code, adding dprintf statements, etc. - the crash happens when freebsd attempts to emulate the bios code (!) in order to determine the keyboard typematic rate (!). (See sys/dev/atkbdc/atkbd.c.) Since SeaBIOS doesn't support the typematic callback rate (int 0x16 ax=0x0306) this doesn't actually achieve anything in practice were the call to not crash. However, a crash does (sometimes) result. - the freebsd x86bios_get_pages() code is buggy (See sys/compat/x86bios/x86bios.c). It attempts to check that its x86 emulater (!) doesn't access a page it hasn't mapped. However, it does not check for the case where a two byte access spans two pages. If the first page is mapped, but the second is not - splat. The crash I've seen in QEMU had a two byte access to 0xffffff8000015fff with the fault at 0xffffff8000016000. - I have not been able to determine why an attempt was made to access a non-mapped page. My best guess is that the x86emu code (!) goes off the deep-end in all cases - just some cases lead it to the bug above and other cases lead it to a more friendly termination. (Recall that SeaBIOS doesn't support the typematic call anyway.) It should be possible to track this down by adding debug statements to the freebsd code if anyone is familiar with the freebsd kernel compile-deploy-run cycle. -Kevin From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:57298) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDs1M-0006qk-IH for qemu-devel@nongnu.org; Fri, 08 Mar 2013 02:47:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDs1L-0001oK-6E for qemu-devel@nongnu.org; Fri, 08 Mar 2013 02:47:16 -0500 Sender: Paolo Bonzini Message-ID: <5139977B.9090608@redhat.com> Date: Fri, 08 Mar 2013 08:47:07 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> <1362687867.32099.4.camel@i7.infradead.org> In-Reply-To: <1362687867.32099.4.camel@i7.infradead.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [SeaBIOS] [Qemu-stable] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: David Woodhouse Cc: Peter Maydell , Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Gerd Hoffmann , Dietmar Maurer , Aurelien Jarno Il 07/03/2013 21:24, David Woodhouse ha scritto: > On Thu, 2013-03-07 at 16:56 +0100, Gerd Hoffmann wrote: >>> and it doesn't need to be in git either IMHO. >> >> That one is a bit more tricky. The big advantage git has here is that >> the update of a blob is not different from other updates. It is just >> a pull request. Keeping source+binaries in sync is easy too: we can >> update submodule hash + blobs with a single git commit. > > FWIW I find the binaries in git to be a PITA. I submitted a patch in > January to fix the VGA BIOS but it's still broken in git. The one > installed in /usr/share/qemu is fine, but whenever I build qemu from git > I have to remember to *remove* the one in the git tree or it uses that > instead... Wasn't that a fix for the SeaBIOS VGA BIOS? The one in qemu.git is still built from the Bochs VGA BIOS. Last year, malc blocked the switch on the lack of protected mode interface in SeaVGABIOS. Paolo From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:58016) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDs4Z-0000mw-Qr for qemu-devel@nongnu.org; Fri, 08 Mar 2013 02:50:37 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDs4Y-0002sm-Hg for qemu-devel@nongnu.org; Fri, 08 Mar 2013 02:50:35 -0500 Sender: Paolo Bonzini Message-ID: <51399841.9080300@redhat.com> Date: Fri, 08 Mar 2013 08:50:25 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> <20130307162158.GC17594@ohm.aurel32.net> In-Reply-To: <20130307162158.GC17594@ohm.aurel32.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Qemu-stable] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: Peter Maydell , Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Gerd Hoffmann , Dietmar Maurer Il 07/03/2013 17:21, Aurelien Jarno ha scritto: > > On the QEMU side, we should definitely have an autotest system trying to > boot a few guests (and if possible with some !linux) to detect such > issues. That's not something easy to do, maybe that could be a good > GSoC project? There is virt-test (formerly known as KVM Autotest). I did some of the lifting required to have !x86 guests, but haven't yet actually created the images. We (Red Hat) use that to run sanity tests on qemu.git. These tests last ~2.5 hours and include guest installations. Alternatively, you can use a pre-built image (the download is ~150MB compressed) and run tests on it. See the patch at http://permalink.gmane.org/gmane.comp.emulators.qemu/197856 that adds "make check-autotest" to QEMU. The tests it runs last a little less than 1 hour. Paolo From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:58912) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDs8l-0003Xw-Cr for qemu-devel@nongnu.org; Fri, 08 Mar 2013 02:54:59 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDs8i-0003tU-5Q for qemu-devel@nongnu.org; Fri, 08 Mar 2013 02:54:55 -0500 Message-ID: <1362729259.32099.32.camel@i7.infradead.org> From: David Woodhouse Date: Fri, 08 Mar 2013 07:54:19 +0000 In-Reply-To: <5139977B.9090608@redhat.com> References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> <1362687867.32099.4.camel@i7.infradead.org> <5139977B.9090608@redhat.com> Content-Type: multipart/signed; micalg="sha1"; protocol="application/x-pkcs7-signature"; boundary="=-v8Yu6Cvc/wbwB5BfOY2M" Mime-Version: 1.0 Subject: Re: [Qemu-devel] [SeaBIOS] [Qemu-stable] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: Peter Maydell , Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , Gerd Hoffmann , Dietmar Maurer , Aurelien Jarno --=-v8Yu6Cvc/wbwB5BfOY2M Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2013-03-08 at 08:47 +0100, Paolo Bonzini wrote: > Wasn't that a fix for the SeaBIOS VGA BIOS? The one in qemu.git is > still built from the Bochs VGA BIOS. No, it was for Bochs VGA BIOS. http://lists.gnu.org/archive/html/qemu-devel/2013-01/msg03650.html --=20 dwmw2 --=-v8Yu6Cvc/wbwB5BfOY2M Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIUbjCCBjQw ggQcoAMCAQICAR4wDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoTDVN0YXJ0 Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNpZ25pbmcxKTAn BgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3MTAyNDIxMDE1NVoX DTE3MTAyNDIxMDE1NVowgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQKEw1TdGFydENvbSBMdGQuMSsw KQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWduaW5nMTgwNgYDVQQDEy9TdGFy dENvbSBDbGFzcyAxIFByaW1hcnkgSW50ZXJtZWRpYXRlIENsaWVudCBDQTCCASIwDQYJKoZIhvcN AQEBBQADggEPADCCAQoCggEBAMcJg8zOLdgasSmkLhOrlr6KMoOMpohBllVHrdRvEg/q6r8jR+EK 75xCGhR8ToREoqe7zM9/UnC6TS2y9UKTpT1v7RSMzR0t6ndl0TWBuUr/UXBhPk+Kmy7bI4yW4urC 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for qemu-devel@nongnu.org; Fri, 08 Mar 2013 03:20:56 -0500 Message-ID: <51399F48.8060002@redhat.com> Date: Fri, 08 Mar 2013 09:20:24 +0100 From: Gerd Hoffmann MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> <1362687867.32099.4.camel@i7.infradead.org> <5139977B.9090608@redhat.com> In-Reply-To: <5139977B.9090608@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [SeaBIOS] [Qemu-stable] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: Peter Maydell , Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , David Woodhouse , Dietmar Maurer , Aurelien Jarno On 03/08/13 08:47, Paolo Bonzini wrote: >> FWIW I find the binaries in git to be a PITA. I submitted a patch in >> January to fix the VGA BIOS but it's still broken in git. The one >> installed in /usr/share/qemu is fine, but whenever I build qemu from git >> I have to remember to *remove* the one in the git tree or it uses that >> instead... > > Wasn't that a fix for the SeaBIOS VGA BIOS? The one in qemu.git is > still built from the Bochs VGA BIOS. > > Last year, malc blocked the switch on the lack of protected mode > interface in SeaVGABIOS. Fedora switched though, so the distro binaries in /usr/share/qemu are the seavgabios ones. "make -C roms seavgabios" in the qemu source tree will upgrade the blobs in pc-bios/. cheers, Gerd From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:38147) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDskl-0003Sp-ES for qemu-devel@nongnu.org; Fri, 08 Mar 2013 03:34:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDskk-0008Fb-1O for qemu-devel@nongnu.org; Fri, 08 Mar 2013 03:34:11 -0500 Message-ID: <5139A260.6010609@redhat.com> Date: Fri, 08 Mar 2013 09:33:36 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> <1362687867.32099.4.camel@i7.infradead.org> <5139977B.9090608@redhat.com> <51399F48.8060002@redhat.com> In-Reply-To: <51399F48.8060002@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [SeaBIOS] [Qemu-stable] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gerd Hoffmann Cc: Peter Maydell , Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , David Woodhouse , Dietmar Maurer , Aurelien Jarno Il 08/03/2013 09:20, Gerd Hoffmann ha scritto: > On 03/08/13 08:47, Paolo Bonzini wrote: >>> FWIW I find the binaries in git to be a PITA. I submitted a patch in >>> January to fix the VGA BIOS but it's still broken in git. The one >>> installed in /usr/share/qemu is fine, but whenever I build qemu from git >>> I have to remember to *remove* the one in the git tree or it uses that >>> instead... >> >> Wasn't that a fix for the SeaBIOS VGA BIOS? The one in qemu.git is >> still built from the Bochs VGA BIOS. >> >> Last year, malc blocked the switch on the lack of protected mode >> interface in SeaVGABIOS. > > Fedora switched though, so the distro binaries in /usr/share/qemu are > the seavgabios ones. Did it? This is F18: $ rpm -q --requires qemu-system-x86|grep bios seabios-bin >= 0.6.0-2 sgabios-bin vgabios >= 0.6c-2 $ rpm -q vgabios vgabios-0.6c-5.fc18.noarch $ rpm -ql seabios-bin /usr/share/seabios /usr/share/seabios/bios.bin $ rpm -qf /usr/share/vgabios/ vgabios-0.6c-5.fc18.noarch Paolo > "make -C roms seavgabios" in the qemu source tree will upgrade the blobs > in pc-bios/. > > cheers, > Gerd > > From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:56233) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDu4K-0006OA-JY for qemu-devel@nongnu.org; Fri, 08 Mar 2013 04:58:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDu4J-00032F-O9 for qemu-devel@nongnu.org; Fri, 08 Mar 2013 04:58:28 -0500 Message-ID: <5139B62F.8070006@redhat.com> Date: Fri, 08 Mar 2013 10:58:07 +0100 From: Gerd Hoffmann MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> <1362687867.32099.4.camel@i7.infradead.org> <5139977B.9090608@redhat.com> <51399F48.8060002@redhat.com> <5139A260.6010609@redhat.com> In-Reply-To: <5139A260.6010609@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [SeaBIOS] [Qemu-stable] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: Peter Maydell , Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , qemu-stable@nongnu.org, "qemu-devel@nongnu.org" , David Woodhouse , Dietmar Maurer , Aurelien Jarno > Did it? This is F18: > > $ rpm -q --requires qemu-system-x86|grep bios > seabios-bin >= 0.6.0-2 > sgabios-bin > vgabios >= 0.6c-2 Oops. There is a seavgabios-bin package too, and I through cole switched qemu over, but apparently this didn't happen (or maybe in rawhide only) ... cheers, Gerd From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:52365) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDvTP-00080y-Qi for qemu-devel@nongnu.org; Fri, 08 Mar 2013 06:28:30 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDvTL-0002vi-Q1 for qemu-devel@nongnu.org; Fri, 08 Mar 2013 06:28:27 -0500 Message-ID: <5139CBC3.8050506@redhat.com> Date: Fri, 08 Mar 2013 12:30:11 +0100 From: Laszlo Ersek MIME-Version: 1.0 References: <24E144B8C0207547AD09C467A8259F7557B2BE14@lisa.maurer-it.com> <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <20130307084304.GA17400@ohm.aurel32.net> <20130308033507.GA31979@morn.localdomain> In-Reply-To: <20130308033507.GA31979@morn.localdomain> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin O'Connor Cc: "qemu-devel@nongnu.org" , seabios@seabios.org, qemu-stable@nongnu.org, Aurelien Jarno , Dietmar Maurer On 03/08/13 04:35, Kevin O'Connor wrote: > On Thu, Mar 07, 2013 at 09:43:04AM +0100, Aurelien Jarno wrote: >> On Wed, Mar 06, 2013 at 07:53:51PM -0500, Kevin O'Connor wrote: >>> That change is definitely just build related - I don't see how it >>> could impact the final SeaBIOS binary. How did you conclude that this >>> commit is what fixes the issue? >>> >> >> I did a git bisect to find the commit fixing the issue. Then, as I was >> not believing the result, I tried the following sequence a dozen of >> times (for some unknown reasons the FreeBSD install CD doesn't exhibit >> the issue, so I used the Debian GNU/kFreeBSD installer): > [...] > > Thanks for the detailed bug report. Here's what I see going on: > > - the SeaBIOS 4219149a commit does change the resulting binary ever so > slightly - the src/virtio_ring.c code has a reference to __FILE__ > (the only code in SeaBIOS that does that), and due to slightly > different build rules in this commit it evaluates to a slightly > different string. > > - the freebsd crash has nothing to do with 4219149a or > src/virtio_ring.c - instead, random changes in the seabios binary > layout can cause (or avoid) the crash. You can see this in action > by modifying seabios to have higher debug levels, commenting out > code, adding dprintf statements, etc. > > - the crash happens when freebsd attempts to emulate the bios code (!) > in order to determine the keyboard typematic rate (!). (See > sys/dev/atkbdc/atkbd.c.) Since SeaBIOS doesn't support the typematic > callback rate (int 0x16 ax=0x0306) this doesn't actually achieve > anything in practice were the call to not crash. However, a crash > does (sometimes) result. > > - the freebsd x86bios_get_pages() code is buggy (See > sys/compat/x86bios/x86bios.c). It attempts to check that its x86 > emulater (!) doesn't access a page it hasn't mapped. However, it > does not check for the case where a two byte access spans two pages. > If the first page is mapped, but the second is not - splat. The > crash I've seen in QEMU had a two byte access to 0xffffff8000015fff > with the fault at 0xffffff8000016000. > > - I have not been able to determine why an attempt was made to access > a non-mapped page. My best guess is that the x86emu code (!) goes > off the deep-end in all cases - just some cases lead it to the bug > above and other cases lead it to a more friendly termination. > (Recall that SeaBIOS doesn't support the typematic call anyway.) It > should be possible to track this down by adding debug statements to > the freebsd code if anyone is familiar with the freebsd kernel > compile-deploy-run cycle. Great analysis! Laszlo (sorry for the noise) From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:55001) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDxjJ-00018h-Mp for qemu-devel@nongnu.org; Fri, 08 Mar 2013 08:53:05 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDxjE-0000La-Rw for qemu-devel@nongnu.org; Fri, 08 Mar 2013 08:53:01 -0500 Received: from mail-qc0-x22d.google.com ([2607:f8b0:400d:c01::22d]:59323) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDxjE-0000LL-Nz for qemu-devel@nongnu.org; Fri, 08 Mar 2013 08:52:56 -0500 Received: by mail-qc0-f173.google.com with SMTP id b12so552834qca.4 for ; Fri, 08 Mar 2013 05:52:56 -0800 (PST) Date: Fri, 8 Mar 2013 08:52:54 -0500 From: Kevin O'Connor Message-ID: <20130308135254.GA6600@morn.localdomain> References: <20130306231208.GA17594@ohm.aurel32.net> <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] [Qemu-stable] [SeaBIOS] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , "qemu-devel@nongnu.org" , qemu-stable@nongnu.org, Gerd Hoffmann , Laszlo Ersek , Dietmar Maurer , Aurelien Jarno On Fri, Mar 08, 2013 at 12:03:15AM +0800, Peter Maydell wrote: > Earlier in this thread it's been stated that this often produces > subtly broken blobs... I think there have been some far reaching conclusions in this thread based on incorrect premises. SeaBIOS has had problems with mis-compilations in the past. To handle this, the SeaBIOS build runs test cases on every compilation to verify the tool chain (see tools/test-build.sh). I have not seen a report of a guest visible SeaBIOS mis-compilation in many years. There have been a few cases of guest bugs that get tickled when changes to SeaBIOS cause slightly different memory layouts. The last case of this that comes to mind is the JunOS bug that was tracked down a year and a half ago. The root cause of the FreeBSD issue raised in this thread is very similar - the full details aren't known yet, but we do know that a slightly different memory layout is ticking a bug in a FreeBSD page presence check. Since changes are inevitable anyway (the only alternative would be to never enhance SeaBIOS), I don't believe that dictating one "true compiler" or one "true blob" is necessary or desirable. -Kevin From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:47345) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDyk7-0007nO-Tn for qemu-devel@nongnu.org; Fri, 08 Mar 2013 09:58:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDyjz-0007cd-2F for qemu-devel@nongnu.org; Fri, 08 Mar 2013 09:57:55 -0500 Received: from foo.stuge.se ([212.116.89.98]:48859) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDyjy-0007bN-LA for qemu-devel@nongnu.org; Fri, 08 Mar 2013 09:57:46 -0500 Message-ID: <20130308145743.15365.qmail@stuge.se> Date: Fri, 8 Mar 2013 15:57:43 +0100 From: Peter Stuge References: <20130307005351.GA19296@morn.localdomain> <5137ED49.3030204@redhat.com> <20130307015844.26170.qmail@stuge.se> <51383F0B.8050704@msgid.tls.msk.ru> <51388079.3010707@redhat.com> <5138B8B3.8070200@redhat.com> <20130308135254.GA6600@morn.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130308135254.GA6600@morn.localdomain> Subject: Re: [Qemu-devel] [SeaBIOS] [Qemu-stable] problems with freeBSD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin O'Connor Cc: Peter Maydell , Anthony Liguori , Doug Goldstein , seabios@seabios.org, Michael Tokarev , "qemu-devel@nongnu.org" , qemu-stable@nongnu.org, Gerd Hoffmann , Dietmar Maurer , Aurelien Jarno Kevin O'Connor wrote: > I don't believe that dictating one "true compiler" or one "true > blob" is necessary or desirable. Sure. The point isn't to have only one correct way, but to have reliable results in the common case. A reference toolchain and a reference blob both help accomplish that, but they're by no means the only, or even best, methods. //Peter