From: Badalian Vyacheslav <slavon@bigtelecom•ru>
To: Jarek Poplawski <jarkao2@gmail•com>
Cc: Chris Caputo <ccaputo@alt•net>,
Peter Zijlstra <a.p.zijlstra@chello•nl>,
Denys Fedoryschenko <denys@visp•net.lb>,
netdev@vger•kernel.org, linux-kernel@vger•kernel.org,
Thomas Gleixner <tglx@linutronix•de>
Subject: Re: deadlocks if use htb
Date: Thu, 15 Jan 2009 10:12:20 +0300 [thread overview]
Message-ID: <496EE1D4.6010709@bigtelecom.ru> (raw)
In-Reply-To: <20090115065322.GA4190@ff.dom.local>
> On Wed, Jan 14, 2009 at 06:02:04PM +0000, Chris Caputo wrote:
> ...
>
>> That said, I would not recommend just the three for -stable unless they
>> get a much wider amount of testing, on multiple platforms. I don't see
>> that as likely to happen, plus Peter says they are incomplete, so maybe it
>> is just best to recommend that 2.6.28 users getting crashes while using
>> HTB try these specific patches at first, and then the rest of the patches
>> if they do not work.
>>
>
> The main problem is my patches, at least the tested ones, harm htb's
> exactness, and I doubt I could convince anybody to merege them, at
> least before your case. It was only reported by two users here (plus
> one more on private), and looked like something very rare. After your
> report it looks much more necessary.
>
> If there is nothing better, I can recommend it, but IMHO the best
> candidate for this is the testing patch #4 from this thread, which
> alas wasn't even tested... So, Chris, if you could give it a try in
> the meantime (without any other patches)?
>
> Thanks,
> Jarek P.
>
> (resend testing patch #4 - for 2.6.27 or 2.6.28)
> ---
>
> diff -Nurp a2.6.27.7/net/sched/sch_htb.c b2.6.27.7/net/sched/sch_htb.c
> --- a2.6.27.7/net/sched/sch_htb.c 2008-12-11 08:16:16.000000000 +0000
> +++ b2.6.27.7/net/sched/sch_htb.c 2008-12-15 10:44:32.000000000 +0000
> @@ -924,6 +924,7 @@ static struct sk_buff *htb_dequeue(struc
> }
> }
> sch->qstats.overlimits++;
> + qdisc_watchdog_cancel(&q->watchdog);
> qdisc_watchdog_schedule(&q->watchdog, next_event);
> fin:
> return skb;
>
>
Hello all.
I also can say this, maybe its help:
At old kernels my servers do 100% soft interupt if traffic more 600mbs.
Without your patches at new kernel i get crash only at heavy network
load PCs (more then 400mbs-500mbs). Servers that get 100-200 mbs not
crashed long time.
I remember that i not test patch #4, because you sat what its only
another way to temporary fix and mainline problem in hrtimer , but i try
turn on HiRes and Dynamic Tics in kernel - its not help for me.
Best Regals. Slavon
next prev parent reply other threads:[~2009-01-15 7:12 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-10 5:44 deadlocks if use htb Badalian Vyacheslav
2008-10-10 7:56 ` Jarek Poplawski
2008-10-10 8:46 ` Badalian Vyacheslav
2008-10-10 8:52 ` Badalian Vyacheslav
2008-10-10 9:04 ` Jarek Poplawski
2008-10-10 9:51 ` Jarek Poplawski
2008-10-16 8:28 ` Badalian Vyacheslav
2008-10-16 8:40 ` Jarek Poplawski
2008-10-22 6:06 ` Badalian Vyacheslav
2008-10-22 7:02 ` Jarek Poplawski
2008-12-10 15:14 ` Badalian Vyacheslav
2008-12-11 8:46 ` Jarek Poplawski
2008-12-15 11:13 ` Jarek Poplawski
2008-12-16 7:37 ` Badalian Vyacheslav
2008-12-18 6:43 ` Badalian Vyacheslav
2008-12-18 8:17 ` Jarek Poplawski
2008-12-18 11:23 ` Badalian Vyacheslav
2008-12-18 11:37 ` Jarek Poplawski
2009-01-14 2:43 ` Chris Caputo
2009-01-14 6:39 ` Jarek Poplawski
2009-01-14 12:17 ` Denys Fedoryschenko
2009-01-14 12:36 ` Jarek Poplawski
2009-01-14 12:41 ` Denys Fedoryschenko
2009-01-14 12:50 ` Peter Zijlstra
2009-01-14 13:04 ` Jarek Poplawski
2009-01-14 13:05 ` Denys Fedoryschenko
2009-01-14 13:12 ` Jarek Poplawski
2009-01-14 13:15 ` Peter Zijlstra
2009-01-14 13:19 ` Denys Fedoryschenko
2009-01-14 13:26 ` Jarek Poplawski
2009-01-14 13:32 ` Peter Zijlstra
2009-01-14 13:57 ` Jarek Poplawski
2009-01-14 14:13 ` Jarek Poplawski
2009-01-14 14:28 ` Peter Zijlstra
2009-01-14 14:39 ` Jarek Poplawski
2009-01-15 9:01 ` Jarek Poplawski
2009-01-15 10:46 ` Peter Zijlstra
2009-01-15 10:54 ` Jarek Poplawski
2009-01-14 18:02 ` Chris Caputo
2009-01-15 6:53 ` Jarek Poplawski
2009-01-15 7:12 ` Badalian Vyacheslav [this message]
2009-01-15 8:09 ` Jarek Poplawski
2009-01-15 9:01 ` Denys Fedoryschenko
2009-01-15 9:06 ` Jarek Poplawski
2009-01-15 9:40 ` Badalian Vyacheslav
2009-01-15 9:54 ` Jarek Poplawski
2009-01-15 9:57 ` Denys Fedoryschenko
2009-01-15 10:06 ` Jarek Poplawski
2009-01-15 10:10 ` Jarek Poplawski
2009-01-15 10:40 ` Denys Fedoryschenko
2009-01-15 7:26 ` Chris Caputo
2009-01-15 7:54 ` Jarek Poplawski
2009-01-15 9:45 ` Jarek Poplawski
2009-01-15 12:00 ` Chris Caputo
2009-01-15 12:18 ` Jarek Poplawski
2009-01-15 13:53 ` Chris Caputo
2009-01-16 6:51 ` Badalian Vyacheslav
2009-01-19 5:46 ` David Miller
2009-01-19 6:57 ` [PATCH] " Jarek Poplawski
2009-01-19 7:42 ` Badalian Vyacheslav
2009-01-19 7:57 ` Jarek Poplawski
2009-01-20 1:29 ` David Miller
2008-10-10 12:32 ` Patrick McHardy
2008-10-10 12:34 ` Patrick McHardy
2008-10-10 12:54 ` Badalian Vyacheslav
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