* redirect qemu-dm log to syslog
@ 2013-02-07 12:32 Vasiliy Tolstov
2013-02-08 11:42 ` Stefano Stabellini
0 siblings, 1 reply; 3+ messages in thread
From: Vasiliy Tolstov @ 2013-02-07 12:32 UTC (permalink / raw)
To: xen-devel
I'm search mailing list and can't see any questions and answers...
Is that possible (and how) to redirect qemu-dm output (stored in
/var/log/xen/qemu-dm-xxx.log) to syslog and not write to file?
--
Vasiliy Tolstov,
Clodo.ru
e-mail: v.tolstov@selfip.ru
jabber: vase@selfip.ru
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: redirect qemu-dm log to syslog
2013-02-07 12:32 redirect qemu-dm log to syslog Vasiliy Tolstov
@ 2013-02-08 11:42 ` Stefano Stabellini
2013-02-08 11:46 ` Andrew Cooper
0 siblings, 1 reply; 3+ messages in thread
From: Stefano Stabellini @ 2013-02-08 11:42 UTC (permalink / raw)
To: Vasiliy Tolstov; +Cc: xen-devel
On Thu, 7 Feb 2013, Vasiliy Tolstov wrote:
> I'm search mailing list and can't see any questions and answers...
> Is that possible (and how) to redirect qemu-dm output (stored in
> /var/log/xen/qemu-dm-xxx.log) to syslog and not write to file?
Not easily, unless you find a way to capture QEMU's stdout and stderr
and send it to syslog using an external tool. You can replace the QEMU
binary with a script that spawns QEMU and a syslog logger to do this.
You can also play nasty tricks with preprocessor macros and turn all
QEMU's printf into syslog calls. Of course such a patch wouldn't be
acceptable upstream.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: redirect qemu-dm log to syslog
2013-02-08 11:42 ` Stefano Stabellini
@ 2013-02-08 11:46 ` Andrew Cooper
0 siblings, 0 replies; 3+ messages in thread
From: Andrew Cooper @ 2013-02-08 11:46 UTC (permalink / raw)
To: Stefano Stabellini; +Cc: Vasiliy Tolstov, xen-devel
On 08/02/13 11:42, Stefano Stabellini wrote:
> On Thu, 7 Feb 2013, Vasiliy Tolstov wrote:
>> I'm search mailing list and can't see any questions and answers...
>> Is that possible (and how) to redirect qemu-dm output (stored in
>> /var/log/xen/qemu-dm-xxx.log) to syslog and not write to file?
> Not easily, unless you find a way to capture QEMU's stdout and stderr
> and send it to syslog using an external tool. You can replace the QEMU
> binary with a script that spawns QEMU and a syslog logger to do this.
>
> You can also play nasty tricks with preprocessor macros and turn all
> QEMU's printf into syslog calls. Of course such a patch wouldn't be
> acceptable upstream.
This was attempted in XenServer, and is harder than just changing the
printf calls. In the end we gave up and just wrapped stdout/stderr.
~Andrew
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2013-02-08 11:46 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2013-02-07 12:32 redirect qemu-dm log to syslog Vasiliy Tolstov
2013-02-08 11:42 ` Stefano Stabellini
2013-02-08 11:46 ` Andrew Cooper
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