From: Gerd Knorr <kraxel@suse.de>
To: Ewan Mellor <ewan@xensource.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Subject: Re: "xm save" trouble -- deadlock?
Date: Wed, 02 Nov 2005 10:25:36 +0100 [thread overview]
Message-ID: <43688610.2010601@suse.de> (raw)
In-Reply-To: <20051101185456.GA21507@leeni.uk.xensource.com>
Hi,
> The code that does this is in XendCheckpoint.py:forkHelper. It's using
> select.poll() and file.readline() to read from both the stdout and the
> stderr. This is a pretty daft thing to do -- there's definitely potential for
> deadlock here.
>
> I'll rewrite this to use a separate thread to pull the data from stderr, which
> should solve the problem.
Should be fixable without a new thread, I'll have a look.
log.debug("stuff") ends up in /var/log/xend.log I guess?
Gerd
next prev parent reply other threads:[~2005-11-02 9:25 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-01 16:43 "xm save" trouble -- deadlock? Gerd Knorr
2005-11-01 17:15 ` Gerd Knorr
2005-11-01 18:54 ` Ewan Mellor
2005-11-02 9:25 ` Gerd Knorr [this message]
2005-11-02 10:04 ` Ewan Mellor
2005-11-02 11:24 ` Gerd Knorr
2005-11-02 15:35 ` Gerd Knorr
2005-11-02 15:41 ` Ewan Mellor
2005-11-02 17:23 ` Gerd Knorr
2005-11-01 18:58 ` Ewan Mellor
2005-11-02 11:34 ` Gerd Knorr
2005-11-02 18:28 ` Kip Macy
2005-11-03 8:53 ` Gerd Knorr
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