From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhenzhong Duan Subject: how to generate a smaller core with xm dump-core Date: Thu, 15 Jan 2015 11:31:35 +0800 Message-ID: <54B73497.1030500@oracle.com> Reply-To: zhenzhong.duan@oracle.com Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2344835052824599547==" Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel Cc: liju.gopinath@oracle.com, Ian.Campbell@citrix.com List-Id: xen-devel@lists.xenproject.org This is a multi-part message in MIME format. --===============2344835052824599547== Content-Type: multipart/alternative; boundary="------------090504080607010404040608" This is a multi-part message in MIME format. --------------090504080607010404040608 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Length: 974 Content-Transfer-Encoding: quoted-printable Hi Maintainers, We are facing issue collecting coredump using the xm dump mechanism in Dom0. We face couple of such issues daily, where the VMs panic s and the SA team is supposed to collect the core. The actual problem is that where the VMs are having huge RAM like 32+ GB RAMs dumping the core using *xm dump* generated core of almost the same size. And also when the RAM size is huge the time taken to dump is also huge. Transferring this core dump of this huge size to another system for analysis is really a pain. I am looking for some solution where we can generate smaller core using *xm dump* or any other tool. Something similar to *makedumpfile* which eliminates the zero and unnecessary pages, which results in core of smaller size. This has become a hot issue and we terribly need this feature. Can you come across with anything or are you aware of any feature which could cater our need=E2=80=A6.=3F thanks zduan --------------090504080607010404040608 Content-Type: text/html; charset=UTF-8 Content-Length: 1606 Content-Transfer-Encoding: quoted-printable Hi Maintainers,

We are facing issue collecting=C2=A0 coredump using the xm dump mechanism in Dom0.

We face couple of such issues daily, where the VMs panic s and the SA team is supposed to collect the core.

The actual problem is that where the VMs are having huge RAM like 32+ GB RAMs dumping the core using xm dump generated core of almost the same size.

And also when the RAM size is huge the time taken to dump is also huge.

Transferring this core dump of this huge size to another system for analysis is really a pain. I am looking for some solution where we can generate smaller core using xm dump or any other tool.

Something similar to makedumpfile which eliminates the zero and unnecessary pages, which results in core of smaller size.

=C2=A0

This has become a hot issue and we terribly need this feature.

Can you come across with anything or are you aware of any feature which could cater our need=E2=80=A6.=3F

thanks
zduan
--------------090504080607010404040608-- --===============2344835052824599547== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel --===============2344835052824599547==--