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From: FengYu LeiDian <fengyuleidian0615@gmail.com>
To: roy.qing.li@gmail.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH iproute2] ip xfrm: support 64bit kernel and 32bit userspace
Date: Fri, 28 Nov 2014 15:08:05 +0800	[thread overview]
Message-ID: <54781F55.5040603@gmail.com> (raw)
In-Reply-To: <1417157936-5522-1-git-send-email-roy.qing.li@gmail.com>

于 2014年11月28日 14:58, roy.qing.li@gmail.com 写道:
> From: Li RongQing<roy.qing.li@gmail.com>  
> 
> The size of struct xfrm_userpolicy_info is 168 bytes for 64bit kernel, and
> 164 bytes for 32bit userspace because of the different alignment. and lead
> to "ip xfrm" be unable to work.
> 
> add a pad in struct xfrm_userpolicy_info, and enable it by set
> KERNEL_64_USERSPACE_32 to y


It's not easy to fix it like this.

Refer:
http://marc.info/?l=linux-netdev&m=139280143513650&w=2
http://thread.gmane.org/gmane.linux.network/157118/focus=157122

  reply	other threads:[~2014-11-28  7:10 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-28  6:58 [PATCH iproute2] ip xfrm: support 64bit kernel and 32bit userspace roy.qing.li
2014-11-28  7:08 ` FengYu LeiDian [this message]
2014-11-28  7:35   ` Li RongQing
2014-11-28  8:07     ` FengYu LeiDian
2014-11-28 10:47 ` David Laight
2014-11-30  1:33 ` Ben Hutchings
2014-11-30 17:42   ` Stephen Hemminger

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