From: "Vladimir 'φ-coder/phcoder' Serbinenko" <phcoder@gmail.com>
To: Fabio Fantoni <fabio.fantoni@m2r.biz>
Cc: The development of GRUB 2 <grub-devel@gnu.org>,
xen-devel <xen-devel@lists.xensource.com>
Subject: Re: [Xen-devel] pvgrub2 is merged
Date: Wed, 18 Dec 2013 15:58:53 +0100 [thread overview]
Message-ID: <52B1B82D.9050501@gmail.com> (raw)
In-Reply-To: <52B06131.8040809@m2r.biz>
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On 17.12.2013 15:35, Fabio Fantoni wrote:
> Il 17/12/2013 15:10, Fabio Fantoni ha scritto:
>> Il 17/12/2013 15:08, Vladimir 'φ-coder/phcoder' Serbinenko ha scritto:
>>>> Thanks.
>>>> Now there is another error, probably introduced by xenfb support:
>>>>
>>> doesn't look like related to xenfb. Is it 64-bit or PAE guest?
>>
>> 64 bit
>
> I did "git reset --hard" to commit "Remove grub_bios_interrupt on
> coreboot." and then I applied only
> "grub-core/lib/x86_64/xen/relocator.S: Fix hypercall ABI violation."
> commit.
> Now the Sid domU boot correctly, therefore the regression is caused by
> "xenfb" or "xen grants to v1" commit, should I find the exact commit
> that causes that problem or these informations are enough for you?
It's because of vfb. Apparently vfb framebuffer stays mapped as rw even
after vfb shutdown
phcoder@debian:15:52:40:~/grub2$ sudo xenstore-ls
/local/domain/54/device/vfb
0 = ""
backend = "/local/domain/0/backend/vfb/54/0"
backend-id = "0"
state = "1"
phcoder@debian:15:52:51:~/grub2$ sudo xenstore-ls
/local/domain/0/backend/vfb/54/0
frontend = "/local/domain/54/device/vfb/0"
frontend-id = "54"
online = "1"
state = "2"
domain = "grub"
vnc = "1"
vnclisten = "127.0.0.1"
vncdisplay = "0"
vncunused = "1"
sdl = "0"
opengl = "0"
feature-resize = "1"
hotplug-status = "connected"
When I do "dry vfb": do everything except writing vfb state problem
disappears. So my question would be:
- how can I inspect how backend maps framebuffer pages?
- Why does it map as rw and not ro? It doesn't need to write to framebuffer?
- How do I force it to drop the mapping?
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next prev parent reply other threads:[~2013-12-18 14:58 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <527EA084.6000706@gmail.com>
2013-11-09 21:01 ` pvgrub2 is merged Samuel Thibault
2013-11-10 4:47 ` Andrey Borzenkov
2013-11-11 10:10 ` Ian Campbell
[not found] ` <20131110084753.540b0107@opensuse.site>
2013-11-11 11:51 ` Vladimir 'φ-coder/phcoder' Serbinenko
2013-11-13 19:06 ` M A Young
2013-11-13 20:14 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <5283DD8F.5080103@gmail.com>
2013-11-14 12:27 ` M A Young
[not found] ` <alpine.DEB.2.00.1311141213350.11266@procyon.dur.ac.uk>
2013-11-14 17:03 ` M A Young
[not found] ` <alpine.DEB.2.00.1311141657530.28334@procyon.dur.ac.uk>
2013-11-14 17:32 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <52850918.1040406@gmail.com>
2013-11-14 18:48 ` M A Young
[not found] ` <alpine.DEB.2.00.1311141835430.28334@procyon.dur.ac.uk>
2013-11-14 18:57 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <52851D28.1090905@gmail.com>
2013-11-14 18:59 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <52851D77.6060203@gmail.com>
2013-11-14 21:11 ` M A Young
[not found] ` <alpine.DEB.2.00.1311142058000.23922@procyon.dur.ac.uk>
2013-11-14 21:43 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <5285440B.2040301@gmail.com>
2013-11-25 15:56 ` Fabio Fantoni
[not found] ` <CAEaD8JOKf7J8ZRfRH_s03UQ9xw=qDziutHNoZs=NTKo3oN_vJg@mail.gmail.com>
2013-11-25 16:26 ` Fabio Fantoni
2013-11-25 19:35 ` M A Young
[not found] ` <alpine.DEB.2.00.1311251913210.16022@procyon.dur.ac.uk>
2013-11-26 17:58 ` Fabio Fantoni
[not found] ` <5294E157.90708@m2r.biz>
2013-11-26 18:12 ` Andrey Borzenkov
[not found] ` <20131126221221.3fe316e3@opensuse.site>
2013-11-26 19:16 ` Andrew Cooper
2013-11-27 11:32 ` Fabio Fantoni
[not found] ` <5295D867.9050306@m2r.biz>
2013-11-27 11:50 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <5295DCA0.2010805@gmail.com>
2013-11-27 15:59 ` Fabio Fantoni
[not found] ` <529616EA.4000504@m2r.biz>
2013-11-27 16:03 ` Vladimir 'φ-coder/phcoder' Serbinenko
2013-11-27 16:10 ` M A Young
[not found] ` <529617B7.2020507@gmail.com>
2013-11-27 16:24 ` Fabio Fantoni
[not found] ` <52961CD5.1040009@m2r.biz>
2013-11-27 17:35 ` Andrey Borzenkov
[not found] ` <20131127213552.3120f5e5@opensuse.site>
2013-11-28 13:07 ` Fabio Fantoni
[not found] ` <52973FF8.7040502@m2r.biz>
2013-11-28 14:05 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <52974D98.3090608@gmail.com>
2013-11-28 14:17 ` Fabio Fantoni
[not found] ` <5297508C.40607@m2r.biz>
2013-11-29 11:28 ` Fabio Fantoni
[not found] ` <52987A43.9070806@m2r.biz>
[not found] ` <52987D7F.3050006@gmail.com>
[not found] ` <52988F86.6050008@m2r.biz>
2013-12-03 10:31 ` [Xen-devel] " Fabio Fantoni
2013-12-03 10:33 ` Vladimir 'φ-coder/phcoder' Serbinenko
2013-12-03 11:22 ` Fabio Fantoni
[not found] ` <529DC07E.8000201@gmail.com>
[not found] ` <529DE3FD.90002@m2r.biz>
[not found] ` <529DF9D5.2060301@gmail.com>
[not found] ` <529E03FB.90603@m2r.biz>
[not found] ` <52A1B0CB.3000705@m2r.biz>
[not found] ` <52A1B5E8.5090709@gmail.com>
[not found] ` <52A1E2CD.9030002@m2r.biz>
[not found] ` <52A1E56E.3070105@gmail.com>
[not found] ` <52A1EBAB.5090006@m2r.biz>
[not found] ` <52A2F341.9010606@gmail.com>
[not found] ` <52A5961A.2010608@m2r.biz>
[not found] ` <52B02B13.1000103@m2r.biz>
[not found] ` <52B02F84.6070403@gmail.com>
[not found] ` <52B04D6E.3070700@m2r.biz>
[not found] ` <52B0527C.40104@gmail.com>
2013-12-17 13:55 ` Fabio Fantoni
2013-12-17 14:08 ` Vladimir 'φ-coder/phcoder' Serbinenko
2013-12-17 14:10 ` Fabio Fantoni
2013-12-17 14:35 ` Fabio Fantoni
2013-12-18 14:58 ` Vladimir 'φ-coder/phcoder' Serbinenko [this message]
2013-12-18 19:39 ` Stefano Stabellini
2013-12-18 20:20 ` Vladimir 'φ-coder/phcoder' Serbinenko
2013-12-19 11:54 ` [Xen-devel] " Stefano Stabellini
2013-12-20 12:14 ` Vladimir 'φ-coder/phcoder' Serbinenko
2014-01-06 12:23 ` Stefano Stabellini
2014-11-07 15:20 ` Stefano Stabellini
2013-12-05 15:50 ` Vladimir 'φ-coder/phcoder' Serbinenko
2013-12-05 16:04 ` Fabio Fantoni
[not found] ` <1384164632.3189.177.camel@kazak.uk.xensource.com>
2013-11-11 11:54 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <5280C576.1010201@gmail.com>
2013-11-11 12:06 ` Ian Campbell
[not found] ` <1384171563.8909.44.camel@kazak.uk.xensource.com>
2013-11-11 12:52 ` Vladimir 'φ-coder/phcoder' Serbinenko
2013-11-14 9:48 ` Dario Faggioli
2013-11-13 16:36 ` Ian Campbell
[not found] ` <1384360619.29080.0.camel@kazak.uk.xensource.com>
2013-11-13 18:25 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <5283C406.7010708@gmail.com>
2013-11-14 8:37 ` Ian Campbell
[not found] ` <1384418221.7059.30.camel@dagon.hellion.org.uk>
2013-12-11 11:47 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <52A850D4.40900@gmail.com>
2013-12-11 11:51 ` Ian Campbell
[not found] ` <1386762709.30271.60.camel@kazak.uk.xensource.com>
2013-12-11 11:54 ` Vladimir 'φ-coder/phcoder' Serbinenko
[not found] ` <52A8527B.2090402@gmail.com>
2013-12-11 14:34 ` Dario Faggioli
2013-12-14 17:13 ` Leif Lindholm
2014-01-06 15:35 ` Lars Kurth
[not found] ` <20131129132422.GC16321@riva.ucam.org>
2013-11-29 17:44 ` Andrey Borzenkov
[not found] ` <20131129214427.02439ae0@opensuse.site>
2013-12-02 9:48 ` Ian Campbell
[not found] ` <1385977687.7108.11.camel@kazak.uk.xensource.com>
2013-12-02 10:37 ` Samuel Thibault
[not found] ` <20131202103750.GC5756@type.mobile.lan>
2013-12-02 10:46 ` Ian Campbell
2013-12-03 17:27 ` Colin Watson
[not found] ` <20131203172728.GA3709@riva.ucam.org>
2013-12-03 17:41 ` Ian Campbell
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