From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Meng Xu <xumengpanda@gmail.com>, Dagaen Golomb <dgolomb@seas.upenn.edu>
Cc: Doug Goldstein <cardoe@cardoe.com>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: Problem Reading from XenStore in DomU
Date: Mon, 16 May 2016 10:52:22 +0100 [thread overview]
Message-ID: <57399856.1080204@citrix.com> (raw)
In-Reply-To: <CAENZ-+n4Wz2fssNu3ji8ry1T5yCOev9qAAEj7W-kCwzhXiDvVQ@mail.gmail.com>
On 16/05/16 04:57, Meng Xu wrote:
> Then according to Doug, "Anything after 3.14 will give you
>>>> deadlocks if you try to use /proc/xen/xenbus.". Maybe the non-working
>>>> domU uses kernel version after 3.14.
>> It does, being the custom kernel on version 4.1.0. But Dom0 uses this same
>> exact kernel and reads/writes just fine! The only solution if this is indeed
>> the problem appears to be changing the kernel source we build on or some
>> hacky method such as symlinking /proc/.. to /dev/.., there has to be an
>> elegant real solution to this...
> Hi Dagaen,
>
> Maybe we can try to create a symlink /proc/xen/xenbus to
> /dev/xen/xenbus and see if works.
Set XENSTORED_PATH=/dev/xen/xenbus in the environment. This should
override the default order.
~Andrew
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next prev parent reply other threads:[~2016-05-16 9:52 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-15 16:40 Problem Reading from XenStore in DomU Dagaen Golomb
2016-05-15 17:04 ` Andrew Cooper
2016-05-15 19:54 ` Dagaen Golomb
2016-05-15 19:59 ` Dagaen Golomb
2016-05-15 20:35 ` Meng Xu
2016-05-15 21:11 ` Dagaen Golomb
2016-05-15 23:47 ` Dagaen Golomb
2016-05-16 1:21 ` Doug Goldstein
2016-05-16 1:28 ` Dagaen Golomb
2016-05-16 1:31 ` Doug Goldstein
2016-05-16 1:41 ` Dagaen Golomb
2016-05-16 3:15 ` Meng Xu
[not found] ` <CALcuvTjPpPQs5=i5uWvO2x_Krm-3j7u867yw4y1iWDNV7J83NA@mail.gmail.com>
[not found] ` <CALcuvTjfh4J8y0B_4GaajcgYQKvUJA3VFBrLFSq0HOVdWSyf0w@mail.gmail.com>
2016-05-16 3:30 ` Dagaen Golomb
2016-05-16 3:57 ` Meng Xu
2016-05-16 9:52 ` Andrew Cooper [this message]
2016-05-16 13:12 ` Jonathan Creekmore
2016-05-16 13:16 ` Dagaen Golomb
2016-05-16 15:55 ` Doug Goldstein
2016-05-16 16:03 ` Dagaen Golomb
2016-05-16 16:11 ` Dagaen Golomb
2016-05-16 16:20 ` Dagaen Golomb
2016-05-16 19:12 ` Doug Goldstein
2016-05-16 19:52 ` Dagaen Golomb
2016-05-16 19:56 ` Dagaen Golomb
2016-05-16 20:18 ` Dagaen Golomb
2016-05-16 22:25 ` Doug Goldstein
2016-05-16 22:29 ` Dagaen Golomb
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