From: David Miller <davem@davemloft.net>
To: 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, 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 10:10:41 -0700 (PDT) [thread overview]
Message-ID: <20190412.101041.259784853562829642.davem@davemloft.net> (raw)
In-Reply-To: <1555052004-31855-1-git-send-email-dongli.zhang@oracle.com>
From: Dongli Zhang <dongli.zhang@oracle.com>
Date: Fri, 12 Apr 2019 14:53:24 +0800
> 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>
Applied to net-next.
prev parent reply other threads:[~2019-04-12 17:10 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
2019-04-12 17:10 ` David Miller [this message]
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