From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: dev@dpdk.org, ALeX Wang <ee07b291@gmail.com>
Subject: Re: [4.4 kernel] kni lockup, kernel dump
Date: Thu, 14 Apr 2016 16:43:50 +0200 [thread overview]
Message-ID: <1933005.8eilLGqekQ@xps13> (raw)
In-Reply-To: <570FA930.60105@intel.com>
2016-04-14 15:29, Ferruh Yigit:
> On 4/13/2016 11:26 PM, ALeX Wang wrote:
> > Did more experiment, found that it has nothing to do with the kernel
> > version,
> >
> > It only happens when using kni module with '--no-huge' eal flag...
> >
> > Is that expected?
> >
>
> Yes.
> KNI kernel module expects mempool is physically continuous, with
> '--no-huge' flag this is no more true, and as a result KNI module can
> access to incorrect address.
This is a bug.
The memory API should allow to explicit this restriction and return
an error if it cannot offer the requested continuous memory.
See this thread for discussion:
http://dpdk.org/ml/archives/dev/2016-April/037444.html
next prev parent reply other threads:[~2016-04-14 14:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-13 0:19 [4.4 kernel] kni lockup, kernel dump ALeX Wang
2016-04-13 0:28 ` ALeX Wang
2016-04-13 22:26 ` ALeX Wang
2016-04-14 14:29 ` Ferruh Yigit
2016-04-14 14:43 ` Thomas Monjalon [this message]
2016-04-14 22:02 ` ALeX Wang
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