From: Wei Liu <wei.liu2@citrix.com>
To: Dongli Zhang <dongli.zhang@oracle.com>
Cc: <xen-devel@lists.xenproject.org>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <wei.liu2@citrix.com>,
<paul.durrant@citrix.com>, <davem@davemloft.net>,
<joe.jin@oracle.com>, <junxiao.bi@oracle.com>,
<jie.l.li@oracle.com>
Subject: Re: [PATCH 1/1] xen-netback: add reference from xenvif to backend_info to facilitate coredump analysis
Date: Fri, 12 Apr 2019 15:28:51 +0100 [thread overview]
Message-ID: <20190412142851.GK30543@zion.uk.xensource.com> (raw)
In-Reply-To: <1555052004-31855-1-git-send-email-dongli.zhang@oracle.com>
On Fri, Apr 12, 2019 at 02:53:24PM +0800, Dongli Zhang wrote:
> During coredump analysis, it is not easy to obtain the address of
> backend_info in xen-netback.
>
> So far there are two ways to obtain backend_info:
>
> 1. Do what xenbus_device_find() does for vmcore to find the xenbus_device
> and then derive it from dev_get_drvdata().
>
> 2. Extract backend_info from callstack of xenwatch (e.g., netback_remove()
> or frontend_changed()).
>
> This patch adds a reference from xenvif to backend_info so that it would be
> much more easier to obtain backend_info during coredump analysis.
>
> Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
next prev parent reply other threads:[~2019-04-12 14:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-12 6:53 Dongli Zhang
2019-04-12 14:28 ` Wei Liu [this message]
2019-04-12 17:10 ` David Miller
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