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From: Yu Zhiguo <yuzg@cn.fujitsu.com>
To: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: why xenstore-* hangs if xenstored is not started
Date: Tue, 22 Jun 2010 15:32:35 +0800	[thread overview]
Message-ID: <4C206713.6030508@cn.fujitsu.com> (raw)

 Running xenstore-* when xenstored is not started, it will hang and
cannot accept any signal, e.g. SIGINT.
 I seems that the process is blocked at accessing '/proc/xen/xenbus'.

 # mount -t xenfs xenfs /proc/xen/
 # xenstore-ls

 call trace:
 do_ls() -> xs_directory() -> xs_talkv() -> xs_write_all() -> write()

 BLOCK is no problem but why process cannot accept signal, Any opinion?


 If start xenstored in other console, xenstore-ls executes and then
receive the signal, seems the signal is pended...

-- 
Regards
Yu Zhiguo

             reply	other threads:[~2010-06-22  7:32 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-22  7:32 Yu Zhiguo [this message]
2010-06-22  7:44 ` why xenstore-* hangs if xenstored is not started Vincent Hanquez
2010-06-22  7:58   ` Yu Zhiguo
2010-06-22  8:27     ` Vincent Hanquez
2010-06-22  8:46       ` Yu Zhiguo
2010-06-22  7:45 ` Keir Fraser
2010-06-22  7:56   ` Vincent Hanquez
2010-06-22  8:06     ` Keir Fraser
2010-06-22  8:26       ` Vincent Hanquez
2010-06-22  8:12   ` Yu Zhiguo

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