From: Pavel Machek <pavel@suse.cz>
To: Stefan Seyfried <seife@suse.de>
Cc: Linux-pm mailing list <linux-pm@lists.osdl.org>,
Nigel Cunningham <ncunningham@linuxmail.org>
Subject: Re: freeze_processes questions
Date: Thu, 28 Apr 2005 20:47:06 +0200 [thread overview]
Message-ID: <20050428184706.GB12431@elf.ucw.cz> (raw)
In-Reply-To: <4270FF11.70305@suse.de>
[-- Attachment #1: Type: text/plain, Size: 618 bytes --]
Hi!
> > How can usespace processes depend on each other? By definition user
> > task sleeps in place where it holds no locks... it can't block anyone.
>
> what was the problem with mysql some months back? I never fully
> understood it, but wasn't it 2 mysql processes communicating via a pipe
> or something like that and the "wrong end" frozen first?
I never fully understood it, either (it still exists in mainline,
IIRC), but it apparently was process calling signal functions in too
tight loop. It was reproducible with just one process.
Pavel
--
Boycott Kodak -- for their patent abuse against Java.
[-- Attachment #2: Type: text/plain, Size: 0 bytes --]
next prev parent reply other threads:[~2005-04-28 18:47 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-05 9:20 freeze_processes questions Rafael J. Wysocki
2005-04-05 9:27 ` Pavel Machek
2005-04-05 9:53 ` Rafael J. Wysocki
2005-04-05 18:02 ` Rafael J. Wysocki
2005-04-05 18:17 ` Alan Stern
2005-04-05 18:33 ` Rafael J. Wysocki
2005-04-05 20:37 ` Pavel Machek
2005-04-05 22:46 ` Rafael J. Wysocki
2005-04-05 22:57 ` Pavel Machek
2005-04-05 23:10 ` Nigel Cunningham
2005-04-06 6:41 ` Rafael J. Wysocki
2005-04-06 19:06 ` Alan Stern
2005-04-06 20:52 ` Rafael J. Wysocki
2005-04-06 21:03 ` Alan Stern
2005-04-06 21:26 ` David Brownell
2005-04-06 21:17 ` Pavel Machek
2005-04-06 21:35 ` Rafael J. Wysocki
2005-04-06 22:07 ` Nigel Cunningham
2005-04-06 22:41 ` Rafael J. Wysocki
2005-04-07 14:41 ` Alan Stern
2005-04-07 17:17 ` Rafael J. Wysocki
2005-04-07 14:43 ` Alan Stern
2005-04-07 17:26 ` Rafael J. Wysocki
2005-04-07 9:11 ` Pavel Machek
2005-04-07 12:29 ` Rafael J. Wysocki
2005-04-07 12:47 ` Nigel Cunningham
2005-04-07 14:36 ` Alan Stern
2005-04-07 18:03 ` Rafael J. Wysocki
2005-04-07 20:00 ` Alan Stern
2005-04-07 20:59 ` Rafael J. Wysocki
2005-04-07 22:09 ` Alan Stern
2005-04-08 6:20 ` Pavel Machek
2005-04-08 9:13 ` Rafael J. Wysocki
2005-04-07 21:03 ` Rafael J. Wysocki
2005-04-08 6:23 ` Pavel Machek
2005-04-08 11:23 ` Rafael J. Wysocki
2005-04-11 23:59 ` Pavel Machek
2005-04-27 9:30 ` Li Shaohua
2005-04-27 9:53 ` Nigel Cunningham
2005-04-28 4:48 ` Li Shaohua
2005-04-28 5:05 ` Nigel Cunningham
2005-04-28 5:21 ` Li Shaohua
2005-04-28 5:49 ` Nigel Cunningham
2005-04-28 6:01 ` Li Shaohua
2005-04-28 6:21 ` Nigel Cunningham
2005-04-28 8:15 ` Pavel Machek
2005-04-28 8:14 ` Pavel Machek
2005-04-28 15:19 ` Stefan Seyfried
2005-04-28 18:47 ` Pavel Machek [this message]
2005-04-08 7:20 ` Pavel Machek
2005-04-06 21:34 ` David Brownell
2005-04-06 22:03 ` Nigel Cunningham
2005-04-06 22:20 ` David Brownell
2005-04-07 9:09 ` Pavel Machek
2005-04-08 6:23 ` Pavel Machek
2005-04-08 7:18 ` Nigel Cunningham
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=20050428184706.GB12431@elf.ucw.cz \
--to=pavel@suse.cz \
--cc=linux-pm@lists.osdl.org \
--cc=ncunningham@linuxmail.org \
--cc=seife@suse.de \
/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