From: Andrew Lunn <andrew@lunn.ch>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Soeren Moch <smoch@web.de>, Jason Cooper <jason@lakedaemon.net>,
Greg KH <gregkh@linuxfoundation.org>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Andrew Lunn <andrew@lunn.ch>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
linux-kernel@vger.kernel.org, Michal Hocko <mhocko@suse.cz>,
linux-mm@kvack.org, Kyungmin Park <kyungmin.park@samsung.com>,
Mel Gorman <mgorman@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Marek Szyprowski <m.szyprowski@samsung.com>,
linaro-mm-sig@lists.linaro.org,
linux-arm-kernel@lists.infradead.org,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Subject: Re: [PATCH v2] mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls
Date: Sat, 19 Jan 2013 17:24:29 +0100 [thread overview]
Message-ID: <20130119162429.GB27825@lunn.ch> (raw)
In-Reply-To: <201301172026.45514.arnd@arndb.de>
On Thu, Jan 17, 2013 at 08:26:45PM +0000, Arnd Bergmann wrote:
> On Thursday 17 January 2013, Soeren Moch wrote:
> > On 17.01.2013 11:49, Arnd Bergmann wrote:
> > > On Wednesday 16 January 2013, Soeren Moch wrote:
> > >>>> I will see what I can do here. Is there an easy way to track the buffer
> > >>>> usage without having to wait for complete exhaustion?
> > >>>
> > >>> DMA_API_DEBUG
> > >>
> > >> OK, maybe I can try this.
I tried this. Not what i expected. We have at least one problem with
the ethernet driver:
WARNING: at lib/dma-debug.c:933 check_unmap+0x4b8/0x8a8()
mv643xx_eth_port mv643xx_eth_port.0: DMA-API: device driver failed to check map error[device address=0x000000001f22be00] [size=1536 bytes] [mapped as single]
Modules linked in:
[<c000db10>] (unwind_backtrace+0x0/0xf4) from [<c0016c44>] (warn_slowpath_common+0x4c/0x64)
[<c0016c44>] (warn_slowpath_common+0x4c/0x64) from [<c0016cf0>] (warn_slowpath_fmt+0x30/0x40)
[<c0016cf0>] (warn_slowpath_fmt+0x30/0x40) from [<c01ab540>] (check_unmap+0x4b8/0x8a8)
[<c01ab540>] (check_unmap+0x4b8/0x8a8) from [<c01abbb8>] (debug_dma_unmap_page+0x8c/0x98)
[<c01abbb8>] (debug_dma_unmap_page+0x8c/0x98) from [<c025cb1c>] (mv643xx_eth_poll+0x630/0x800)
[<c025cb1c>] (mv643xx_eth_poll+0x630/0x800) from [<c0331d9c>] (net_rx_action+0xcc/0x1d4)
[<c0331d9c>] (net_rx_action+0xcc/0x1d4) from [<c001e1b0>] (__do_softirq+0xa8/0x170)
[<c001e1b0>] (__do_softirq+0xa8/0x170) from [<c001e3e8>] (do_softirq+0x5c/0x6c)
[<c001e3e8>] (do_softirq+0x5c/0x6c) from [<c001e610>] (local_bh_enable+0xcc/0xdc)
[<c001e610>] (local_bh_enable+0xcc/0xdc) from [<c0359c74>] (ip_finish_output+0x1c8/0x39c)
[<c0359c74>] (ip_finish_output+0x1c8/0x39c) from [<c03571a4>] (ip_local_out+0x28/0x2c)
[<c03571a4>] (ip_local_out+0x28/0x2c) from [<c0359564>] (ip_queue_xmit+0x118/0x338)
[<c0359564>] (ip_queue_xmit+0x118/0x338) from [<c036e58c>] (tcp_transmit_skb+0x3fc/0x8e4)
[<c036e58c>] (tcp_transmit_skb+0x3fc/0x8e4) from [<c0371218>] (tcp_write_xmit+0x228/0xb08)
[<c0371218>] (tcp_write_xmit+0x228/0xb08) from [<c0371b6c>] (__tcp_push_pending_frames+0x30/0x9c)
[<c0371b6c>] (__tcp_push_pending_frames+0x30/0x9c) from [<c0362940>] (tcp_sendmsg+0x158/0xdc4)
[<c0362940>] (tcp_sendmsg+0x158/0xdc4) from [<c0386620>] (inet_sendmsg+0x38/0x74)
[<c0386620>] (inet_sendmsg+0x38/0x74) from [<c031f370>] (sock_aio_write+0x12c/0x138)
[<c031f370>] (sock_aio_write+0x12c/0x138) from [<c00a62f4>] (do_sync_write+0xa0/0xd0)
[<c00a62f4>] (do_sync_write+0xa0/0xd0) from [<c00a6f18>] (vfs_write+0x13c/0x144)
[<c00a6f18>] (vfs_write+0x13c/0x144) from [<c00a6ff0>] (sys_write+0x44/0x70)
[<c00a6ff0>] (sys_write+0x44/0x70) from [<c0008ce0>] (ret_fast_syscall+0x0/0x2c)
---[ end trace b75faa8779652e63 ]---
I'm getting about 4 errors reported a second from the ethernet driver.
Before i look at issues with em28xx i will first try to get the noise
from the ethernet driver sorted out.
Andrew
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next prev parent reply other threads:[~2013-01-19 16:25 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-08 6:38 [PATCH] " Marek Szyprowski
2012-11-11 17:22 ` Andrew Lunn
2012-11-12 9:48 ` Soeren Moch
2012-11-12 10:38 ` Andrew Lunn
2012-11-12 11:03 ` Soeren Moch
2012-11-19 0:18 ` Jason Cooper
2012-11-19 22:48 ` Andrew Morton
2012-11-20 10:48 ` Marek Szyprowski
2012-11-20 19:52 ` Andrew Morton
2012-11-20 14:31 ` [PATCH v2] " Marek Szyprowski
2012-11-20 19:33 ` Andrew Morton
2012-11-20 20:27 ` Jason Cooper
2012-11-21 8:08 ` Marek Szyprowski
2012-11-21 8:36 ` Andrew Morton
2012-11-21 9:20 ` Marek Szyprowski
2012-11-21 19:17 ` Andrew Morton
2012-11-22 12:55 ` Marek Szyprowski
2013-01-14 11:56 ` Soeren Moch
2013-01-15 16:56 ` Jason Cooper
2013-01-15 17:50 ` Greg KH
2013-01-15 20:16 ` Jason Cooper
2013-01-15 21:56 ` Jason Cooper
2013-01-16 0:17 ` Soeren Moch
2013-01-16 2:40 ` Jason Cooper
2013-01-16 3:24 ` Soeren Moch
2013-01-16 8:55 ` Soeren Moch
2013-01-16 15:50 ` [PATCH] ata: sata_mv: fix sg_tbl_pool alignment Jason Cooper
2013-01-16 17:05 ` Soeren Moch
2013-01-16 17:52 ` Jason Cooper
2013-01-16 18:35 ` Jason Cooper
2013-01-16 22:26 ` Soeren Moch
2013-01-16 23:10 ` Soeren Moch
2013-01-17 9:11 ` Soeren Moch
2013-01-16 17:32 ` [PATCH v2] mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls Soeren Moch
2013-01-16 17:47 ` Jason Cooper
2013-01-16 22:36 ` Soeren Moch
2013-01-17 10:49 ` Arnd Bergmann
2013-01-17 13:47 ` Soeren Moch
2013-01-17 20:26 ` Arnd Bergmann
2013-01-19 15:29 ` Soeren Moch
2013-01-19 18:59 ` Andrew Lunn
2013-01-23 15:30 ` Soeren Moch
2013-01-23 16:25 ` Andrew Lunn
2013-01-23 17:07 ` Soeren Moch
2013-01-23 17:20 ` Soeren Moch
2013-01-23 18:10 ` Andrew Lunn
2013-01-28 20:59 ` Soeren Moch
2013-01-29 0:13 ` Jason Cooper
2013-01-29 11:02 ` Andrew Lunn
2013-01-29 11:50 ` Soeren Moch
2013-01-19 20:05 ` Arnd Bergmann
2013-01-21 15:01 ` Soeren Moch
2013-01-21 18:55 ` Arnd Bergmann
2013-01-21 21:01 ` Greg KH
2013-01-22 18:13 ` Arnd Bergmann
2013-01-23 14:37 ` Soeren Moch
2013-01-19 16:24 ` Andrew Lunn [this message]
2013-01-15 20:05 ` Sebastian Hesselbarth
2013-01-15 20:19 ` Jason Cooper
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