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
next 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4C206713.6030508@cn.fujitsu.com \
--to=yuzg@cn.fujitsu.com \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).