From: David Vrabel <david.vrabel-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
To: "Zhang, Yang Z" <yang.z.zhang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Konrad Rzeszutek Wilk
<konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
"roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org"
<roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"xen-devel-GuqFBffKawuEi8DpZVb4nw@public.gmane.org"
<xen-devel-GuqFBffKawuEi8DpZVb4nw@public.gmane.org>,
Lukas Hejtmanek
<xhejtman-8qz54MUs51PtwjQa/ONI9g@public.gmane.org>,
Jan Beulich <JBeulich-IBi9RG/b67k@public.gmane.org>,
"Liu,
Jijiang" <jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [Xen-devel] BUG: bad page map under Xen
Date: Thu, 2 Jan 2014 14:18:23 +0000 [thread overview]
Message-ID: <52C5752F.3080005@citrix.com> (raw)
In-Reply-To: <A9667DDFB95DB7438FA9D7D576C3D87E0A99CE00-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
On 26/12/13 06:39, Zhang, Yang Z wrote:
>
> Any conclusion for this issue? Our custom also saw the same issue
> that they want to map an MMIO to userspace address(through UIO
> approach), but current ->mmap function call remap_pfn_range without
> setting _PAGE_IOMAP and cause the host crashed. It seems all
> userspace device drivers that tries to map device's mmio will caused
> host crashed.
>
> They are using 3.10 kernel.
My first attempt at fixing this was broken and I need to find time for
another look.
There were problems with pages that started out pre-ballooned.
David
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next prev parent reply other threads:[~2014-01-02 14:18 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-21 11:57 BUG: bad page map under Xen Lukas Hejtmanek
2013-10-21 12:59 ` konrad wilk
2013-10-21 13:14 ` Jan Beulich
[not found] ` <20131021115740.GN20913-8qz54MUs51PtwjQa/ONI9g@public.gmane.org>
2013-10-21 12:59 ` [Xen-devel] " konrad wilk
2013-10-21 13:18 ` Jan Beulich
[not found] ` <52652534.2040303-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2013-10-21 13:18 ` [Xen-devel] " Jan Beulich
[not found] ` <526545E002000078000FC5F1-ce6RLXgGx+vWGUEhTRrCg1aTQe2KTcn/@public.gmane.org>
2013-10-21 13:39 ` konrad wilk
2013-10-21 13:57 ` konrad wilk
[not found] ` <52652E95.3020305-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2013-10-21 13:57 ` [Xen-devel] " konrad wilk
2013-10-21 14:06 ` Lukas Hejtmanek
2013-10-21 14:18 ` Konrad Rzeszutek Wilk
2013-10-21 14:23 ` Lukas Hejtmanek
[not found] ` <20131021141855.GA4211-6K5HmflnPlqSPmnEAIUT9EEOCMrvLtNR@public.gmane.org>
2013-10-21 14:23 ` [Xen-devel] " Lukas Hejtmanek
2013-10-21 14:27 ` Jan Beulich
2013-10-21 14:44 ` Konrad Rzeszutek Wilk
[not found] ` <5265560602000078000FC73E-ce6RLXgGx+vWGUEhTRrCg1aTQe2KTcn/@public.gmane.org>
2013-10-21 14:44 ` [Xen-devel] " Konrad Rzeszutek Wilk
[not found] ` <20131021144407.GC4560-6K5HmflnPlqSPmnEAIUT9EEOCMrvLtNR@public.gmane.org>
2013-10-21 15:12 ` Jan Beulich
2013-10-23 15:36 ` Konrad Rzeszutek Wilk
[not found] ` <5265609802000078000FC7B7-ce6RLXgGx+vWGUEhTRrCg1aTQe2KTcn/@public.gmane.org>
2013-10-23 15:36 ` [Xen-devel] " Konrad Rzeszutek Wilk
2013-10-23 15:45 ` Jan Beulich
[not found] ` <20131023153645.GA28011-6K5HmflnPlqSPmnEAIUT9EEOCMrvLtNR@public.gmane.org>
2013-10-23 15:45 ` [Xen-devel] " Jan Beulich
[not found] ` <5267FD3102000078000A56A1-ce6RLXgGx+vWGUEhTRrCg1aTQe2KTcn/@public.gmane.org>
2013-10-23 16:04 ` Konrad Rzeszutek Wilk
[not found] ` <20131023160433.GA28260-6K5HmflnPlqSPmnEAIUT9EEOCMrvLtNR@public.gmane.org>
2013-10-23 16:35 ` Jan Beulich
2013-10-23 16:35 ` Jan Beulich
2013-10-23 16:04 ` Konrad Rzeszutek Wilk
2013-10-24 23:08 ` [Xen-devel] " David Vrabel
[not found] ` <5269A865.2010100-5LkwijKnu/2sTnJN9+BGXg@public.gmane.org>
2013-10-25 14:21 ` Konrad Rzeszutek Wilk
[not found] ` <20131025142147.GB3742-6K5HmflnPlqSPmnEAIUT9EEOCMrvLtNR@public.gmane.org>
2013-12-26 6:39 ` Zhang, Yang Z
[not found] ` <A9667DDFB95DB7438FA9D7D576C3D87E0A99CE00-0J0gbvR4kTg/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-01-02 14:18 ` David Vrabel [this message]
2014-01-02 14:18 ` David Vrabel
2013-12-26 6:39 ` Zhang, Yang Z
2013-10-25 14:21 ` Konrad Rzeszutek Wilk
2013-10-24 23:08 ` David Vrabel
2013-10-21 15:12 ` Jan Beulich
2013-10-21 14:27 ` Jan Beulich
[not found] ` <20131021140607.GQ20913-8qz54MUs51PtwjQa/ONI9g@public.gmane.org>
2013-10-21 14:20 ` [Xen-devel] " Jan Beulich
2013-10-21 14:20 ` Jan Beulich
2013-10-21 14:06 ` Lukas Hejtmanek
2013-10-21 13:39 ` konrad wilk
2013-10-21 13:14 ` [Xen-devel] " Jan Beulich
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