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From: "Artem B. Bityuckiy" <abityuckiy@yandex.ru>
To: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
Subject: Re: JFFS2 & SMP
Date: Thu, 28 Oct 2004 16:33:54 +0400	[thread overview]
Message-ID: <4180E732.70608@yandex.ru> (raw)
In-Reply-To: <1098884706.13633.1791.camel@hades.cambridge.redhat.com>

Hello,

I have two problems with JFFS2 now.

The first problem appears if SMP is enabled. I described is in the mtd-list.

The second one is the CRC errors. I also mentioned it

I've installed 4 variants of the Linux-2.6.8.1 kernel on my i686 test host:
1. SMP, Preemption
2. SMP, No preemption
3. UP, Preemption
4. UP, No preemption

I've testes JFFS2 on all these configurations and have observed:
The first problem appears only on configurations 1 and 2.
The second problem appears only on configuration 1 and 3

The configuration number 4 has no problems.

So I may suppose that:
1. The first problem is SMP-related.
2. The second problem is preemption-related.
3. Both problems relate to race conditions.

Comments?

-- 
Best Regards,
Artem B. Bityuckiy,
St.-Petersburg, Russia.

  parent reply	other threads:[~2004-10-28 12:34 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-27 12:35 JFFS2 & SMP Artem B. Bityuckiy
2004-10-27 12:59 ` David Woodhouse
2004-10-27 13:19   ` Artem B. Bityuckiy
2004-10-27 13:35   ` Artem B. Bityuckiy
2004-10-27 13:45     ` David Woodhouse
2004-10-27 14:09       ` Artem B. Bityuckiy
2004-10-27 14:59       ` Artem B. Bityuckiy
2004-10-27 15:07         ` Artem B. Bityuckiy
2004-10-28 12:14           ` Artem B. Bityuckiy
2004-10-28 12:33       ` Artem B. Bityuckiy [this message]
2004-10-28 13:57         ` Artem B. Bityuckiy
2004-11-02 14:31           ` Estelle HAMMACHE
2004-11-03 16:29             ` Artem B. Bityuckiy
2004-11-04  9:03               ` Estelle HAMMACHE
2004-11-04  9:36                 ` Artem B. Bityuckiy
     [not found]                   ` <418A591C.A4D46C9E@st.com>
2004-11-04 17:17                     ` Artem B. Bityuckiy
2004-11-05  9:06                       ` Estelle HAMMACHE
2004-11-05 11:51                         ` Artem B. Bityuckiy
2004-11-03 16:39             ` Artem B. Bityuckiy

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