From: manish jaggi <manishjaggi.oss@gmail.com>
To: stefano.stabellini@citrix.com, xen-devel@lists.xenproject.org,
Vijay Kilari <vijay.kilari@gmail.com>,
manish.jaggi@caviumnetworks.com
Subject: How to display dom0 kernel printk on hvc0
Date: Thu, 7 Aug 2014 13:53:37 +0530 [thread overview]
Message-ID: <CAAiw7Jng4EpmUaJrSu1Go8ffEnkAUU6Mqk63rQFENTwuPEryGw@mail.gmail.com> (raw)
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Hi Stefano,
I am debugging a kernel crash when I start xencommons. If I add prints in
kernel the prints are only visible in dmesg and not on dom0 console. This
makes it difficult to view kernel printks at the time of crash.
I tried xen_raw_printks but the print only comes when you press a key, so
while a crash is happening you cannot press a key.
Is there a way to enable printks on hvc0
OR
is there a way to dump __logbuf of linux from xen shell.
-Regards
Manish
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next reply other threads:[~2014-08-07 8:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-07 8:23 manish jaggi [this message]
2014-08-07 12:44 ` How to display dom0 kernel printk on hvc0 Stefano Stabellini
2014-08-07 13:01 ` manish jaggi
2014-08-07 14:36 ` Stefano Stabellini
2014-08-07 14:52 ` Julien Grall
2014-08-07 15:01 ` David Vrabel
2014-08-07 15:43 ` manish jaggi
2014-08-07 14:05 ` Julien Grall
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