From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Yuvraj Agarwal <yuvraj@cs.ucsd.edu>
Cc: xen-devel@lists.xensource.com
Subject: Re: XEN 4.0 + 2.6.31.13 pvops kernel : system crashes on starting 155th domU
Date: Tue, 27 Apr 2010 09:59:11 -0400 [thread overview]
Message-ID: <20100427135911.GB23625@phenom.dumpdata.com> (raw)
In-Reply-To: <019701cae5dd$01b36e70$051a4b50$@ucsd.edu>
On Tue, Apr 27, 2010 at 12:41:07AM -0700, Yuvraj Agarwal wrote:
> Hi All,
>
>
>
> We are setting up a system with a large number of very small VMs for a
> project. We worked through a number of limitations, including those
> imposed by blktap2 devices and the number of dynamic IRQ (set kernel
> config NR_CPUS) etc. After these changes we were able to get to 154 domUs
> (!), but as soon as we start up the 155th domU the system crashes. We
> edited each domU config to have one blktap2 device (the disk image) and
> two virtual network interfaces each.
This sounds strangly familiar. I believe somebody posted a question
about this a couple of months ago on the xen-devel mailing list and
found the answer. I think part of it was CONFIG_LEGACY_PTY_COUNT had to
be high. But I don't remember the exact details - you might want to
search the archive.
next prev parent reply other threads:[~2010-04-27 13:59 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-27 7:41 XEN 4.0 + 2.6.31.13 pvops kernel : system crashes on starting 155th domU Yuvraj Agarwal
2010-04-27 9:02 ` Pasi Kärkkäinen
2010-04-27 17:14 ` Yuvraj Agarwal
2010-04-27 17:18 ` Pasi Kärkkäinen
2010-04-27 18:58 ` Yuvraj Agarwal
2010-04-27 19:29 ` Pasi Kärkkäinen
2010-04-27 13:59 ` Konrad Rzeszutek Wilk [this message]
2010-04-27 17:18 ` Yuvraj Agarwal
2010-04-27 18:51 ` Jeremy Fitzhardinge
2010-04-27 19:10 ` Yuvraj Agarwal
2010-04-27 19:27 ` Jeremy Fitzhardinge
2010-04-27 19:38 ` Yuvraj Agarwal
2010-04-28 0:43 ` Keir Fraser
2010-04-28 1:02 ` Yuvraj Agarwal
2010-04-28 3:45 ` Keir Fraser
2010-04-28 6:47 ` John McCullough
2010-04-28 3:53 ` Keir Fraser
2010-04-28 14:04 ` Konrad Rzeszutek Wilk
2010-04-28 16:57 ` Ian Campbell
2010-04-28 18:18 ` Jeremy Fitzhardinge
2010-04-28 22:51 ` Yuvraj Agarwal
2010-04-29 14:56 ` Konrad Rzeszutek Wilk
2010-04-30 3:12 ` Yuvraj Agarwal
2010-04-28 18:13 ` Jeremy Fitzhardinge
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