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From: Ben Greear <greearb@candelatech.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: David <david@unsolicited.net>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	netdev@vger.kernel.org
Subject: Re: Linux 3.0 release
Date: Fri, 22 Jul 2011 12:44:38 -0700	[thread overview]
Message-ID: <4E29D326.7070403@candelatech.com> (raw)
In-Reply-To: <CA+55aFy1FnVGH4C_0T8fXwZPUdz5-SCczMwy1K8kydLwTx89RQ@mail.gmail.com>

On 07/22/2011 12:21 PM, Linus Torvalds wrote:
> On Fri, Jul 22, 2011 at 12:11 PM, David<david@unsolicited.net>  wrote:
>>
>> I'm getting the following warning at boot from 3.0, everything seems to be fine otherwise though.
>>
>> Jul 22 19:40:02 server kernel: [   15.526629] ------------[ cut here ]------------
>> Jul 22 19:40:02 server kernel: [   15.526635] WARNING: at kernel/timer.c:1011 del_timer_sync+0x4e/0x50()
>
> Hmm. That looks like a real bug: you shouldn't do a "del_timer_sync()"
> from an interrupt. It probably works, but it sounds like a really bad
> idea.
>
>> Jul 22 19:40:02 server kernel: [   15.526677]  [<ffffffff81054b4e>] del_timer_sync+0x4e/0x50
>> Jul 22 19:40:02 server kernel: [   15.526679]  [<ffffffff8145e224>] linkwatch_schedule_work+0x84/0xa0
>> Jul 22 19:40:02 server kernel: [   15.526681]  [<ffffffff8145e2bc>] linkwatch_fire_event+0x7c/0x100
>> Jul 22 19:40:02 server kernel: [   15.526684]  [<ffffffff8146b1ed>] netif_carrier_on+0x2d/0x40
>> Jul 22 19:40:02 server kernel: [   15.526689]  [<ffffffffa006b6fb>] __rtl8169_check_link_status+0x4b/0xc0 [r8169]
>> Jul 22 19:40:02 server kernel: [   15.526693]  [<ffffffffa006c016>] rtl8169_interrupt+0x166/0x3a0 [r8169]
>> Jul 22 19:40:02 server kernel: [   15.526696]  [<ffffffff810a4385>] handle_irq_event_percpu+0x55/0x1f0
>> Jul 22 19:40:02 server kernel: [   15.526698]  [<ffffffff810a4551>] handle_irq_event+0x31/0x50
>
> I'm not seeing a lot of changes in any of these areas, though. I
> wonder what made it start happen.

This has been around since at least 2.6.38.  I haven't tested recently
on my rtl8169 system, but I don't recall seeing any attempts to fix
it...

http://permalink.gmane.org/gmane.linux.network/193565
http://lists.openwall.net/netdev/2011/05/04/183

Thanks,
Ben


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


  reply	other threads:[~2011-07-22 19:45 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-20 17:06 Major 2.6.38 regression ignored? Luke-Jr
2011-05-20 18:08 ` Ray Lee
2011-05-20 20:24   ` Rafael J. Wysocki
2011-05-20 21:11     ` Ray Lee
2011-05-21  8:41   ` Chris Wilson
2011-05-21 15:23     ` Luke-Jr
2011-05-21 15:40       ` Chris Wilson
2011-05-21 15:40         ` Chris Wilson
2011-05-21 19:33         ` Luke-Jr
2011-05-21 19:33           ` Luke-Jr
2011-05-28 13:19         ` Major 2.6.38 / 2.6.39 " Kirill Smelkov
2011-07-12 17:17           ` [Intel-gfx] " Kirill Smelkov
2011-07-12 18:07             ` Pekka Enberg
2011-07-12 18:07               ` Pekka Enberg
2011-07-22  2:59               ` Linux 3.0 release Linus Torvalds
2011-07-22 11:08                 ` Major 2.6.38 / 2.6.39 / 3.0 regression ignored? Kirill Smelkov
2011-07-22 11:08                   ` Kirill Smelkov
2011-07-22 14:12                   ` Herbert Xu
2011-07-22 14:12                     ` Herbert Xu
2011-07-22 18:00                   ` Keith Packard
2011-07-22 18:00                     ` Keith Packard
2011-07-22 20:23                     ` Kirill Smelkov
2011-07-22 20:23                       ` Kirill Smelkov
2011-07-22 20:50                       ` Keith Packard
2011-07-22 20:50                         ` Keith Packard
2011-07-22 21:08                         ` Kirill Smelkov
2011-07-22 21:08                           ` Kirill Smelkov
2011-07-22 21:31                           ` [Intel-gfx] " Kirill Smelkov
2011-07-22 21:31                             ` Kirill Smelkov
2011-07-23 15:10                             ` [Intel-gfx] " Alex Deucher
2011-07-23 15:10                               ` Alex Deucher
2011-07-23 18:19                               ` Kirill Smelkov
2011-07-23 18:19                                 ` Kirill Smelkov
2011-07-23 15:55                         ` Pekka Enberg
2011-07-25  4:29                           ` Keith Packard
2011-07-26 13:48                       ` [Intel-gfx] " Kirill Smelkov
2011-07-26 13:48                         ` Kirill Smelkov
2011-08-09 12:08                         ` Kirill Smelkov
2011-08-09 12:08                           ` Kirill Smelkov
2011-08-09 14:00                           ` [Intel-gfx] " Vasily Khoruzhick
2011-08-09 14:00                             ` Vasily Khoruzhick
2011-08-09 14:47                             ` [Intel-gfx] " Kirill Smelkov
2011-08-09 14:47                               ` Kirill Smelkov
2011-08-09 15:09                               ` [Intel-gfx] " Vasily Khoruzhick
2011-08-09 15:09                                 ` Vasily Khoruzhick
2011-08-09 15:34                                 ` [Intel-gfx] " Kirill Smelkov
2011-08-09 15:34                                   ` Kirill Smelkov
2011-08-09 16:02                                   ` [Intel-gfx] " Vasily Khoruzhick
2011-08-09 16:02                                     ` Vasily Khoruzhick
2011-08-09 16:32                                     ` [Intel-gfx] " Kirill Smelkov
2011-08-09 16:32                                       ` Kirill Smelkov
2011-08-09 16:56                                       ` Ray Lee
2011-08-09 16:56                                         ` Ray Lee
2011-08-09 17:40                                         ` Kirill Smelkov
2011-08-09 17:40                                           ` Kirill Smelkov
2011-08-09 17:43                                           ` [Intel-gfx] " Ray Lee
2011-08-09 17:43                                             ` Ray Lee
2011-08-10  8:36                                             ` Kirill Smelkov
2011-08-10  8:36                                               ` Kirill Smelkov
2011-08-10  9:41                                           ` [Intel-gfx] " Alan Cox
2011-08-10  9:41                                             ` Alan Cox
2011-08-10 11:37                                             ` Kirill Smelkov
2011-08-10 11:37                                               ` Kirill Smelkov
2011-07-22 12:52                 ` Linux 3.0 release Martin Knoblauch
2011-07-22 19:11                 ` David
2011-07-22 19:21                   ` Linus Torvalds
2011-07-22 19:44                     ` Ben Greear [this message]
2011-07-22 20:32                       ` Stephen Hemminger
2011-07-22 20:35                         ` Linus Torvalds
2011-07-23  2:27                           ` Tejun Heo
2011-07-23  2:30                             ` Tejun Heo
2011-07-22 21:26                         ` Francois Romieu
2011-07-22 22:09                           ` Stephen Hemminger
2011-07-22 22:53                             ` [PATCH] net: allow netif_carrier to be called safely from IRQ Stephen Hemminger
2011-07-23  0:16                               ` David Miller
2011-07-22 23:21                 ` Linux 3.0 release - btrfs possible locking deadlock Ed Tomlinson
2011-07-25 19:49                   ` Chris Mason
2011-07-26  0:22                     ` Ed Tomlinson
2011-07-24 22:04                 ` Linux 3.0 release Arnaud Lacombe
2011-07-25  2:21                   ` Yoshinori Sato
2011-07-25 15:50                     ` Arnaud Lacombe
2011-07-27 15:22                       ` Yoshinori Sato
2011-07-27 17:29                         ` Arnaud Lacombe
2011-07-28  2:08                         ` Arnaud Lacombe

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