netdev - [BUG] [skge] WARNING: at lib/dma-debug.c:937

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Date:	Tue, 23 Jul 2013 14:20:42 +0200
From:	poma <pomidorabelisima@...il.com>
To:	netdev@...r.kernel.org
CC:	Mailing-List fedora-kernel <kernel@...ts.fedoraproject.org>,
	Stephen Hemminger <shemminger@...ux-foundation.org>
Subject: [BUG] [skge] WARNING: at lib/dma-debug.c:937


Given much time is here, almost like a giraffe.

3.10.2:
…
skge 0000:01:09.0 enp1s9: Link is up at 1000 Mbps, full duplex, flow
control both
------------[ cut here ]------------
WARNING: at lib/dma-debug.c:937 check_unmap+0x47b/0x930()
skge 0000:01:09.0: DMA-API: device driver failed to check map
error[device address=0x000000012175cec2] [size=42 bytes] [mapped as single]
Modules linked in:
 skge raid1 nouveau video mxm_wmi i2c_algo_bit drm_kms_helper ttm drm
i2c_core wmi
CPU: 3 PID: 0 Comm: swapper/3 Not tainted 3.10.2-301.fc19.x86_64.debug #1
Hardware name: Gigabyte Technology Co., Ltd. M720-US3/M720-US3, BIOS F7n
09/07/2010
 0000000000000009 ffff88012ac03c58 ffffffff81717f12 ffff88012ac03c90
 ffffffff810674d1 ffff880128330ac0 ffff880124f83ae8 ffffffff82bd7290
 0000000000000282 ffffffff819f7ab3 ffff88012ac03cf0 ffffffff8106753c
Call Trace:
 <IRQ>  [<ffffffff81717f12>] dump_stack+0x19/0x1b
 [<ffffffff810674d1>] warn_slowpath_common+0x61/0x80
 [<ffffffff8106753c>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffff8137641b>] check_unmap+0x47b/0x930
 [<ffffffff8137692f>] debug_dma_unmap_page+0x5f/0x70
 [<ffffffffa01c6d35>] skge_poll+0xe5/0x9d0 [skge]
 [<ffffffff815d8f61>] ? net_rx_action+0xa1/0x380
 [<ffffffff815d9032>] net_rx_action+0x172/0x380
 [<ffffffff81071817>] __do_softirq+0x107/0x410
 [<ffffffff81071cf5>] irq_exit+0xc5/0xd0
 [<ffffffff8172b6d6>] do_IRQ+0x56/0xc0
 [<ffffffff81720772>] common_interrupt+0x72/0x72
 <EOI>  [<ffffffff810494c6>] ? native_safe_halt+0x6/0x10
 [<ffffffff81020ab4>] default_idle+0x24/0x270
 [<ffffffff81020d7a>] amd_e400_idle+0x7a/0x110
 [<ffffffff810215de>] arch_cpu_idle+0x2e/0x40
 [<ffffffff810c93e2>] cpu_startup_entry+0xd2/0x410
 [<ffffffff8170b158>] start_secondary+0x262/0x264
---[ end trace 80d48b7d4f24ac81 ]---
Mapped at:
 [<ffffffff81375251>] debug_dma_map_page+0x91/0x140
 [<ffffffffa01c4140>] skge_xmit_frame+0x180/0x5d0 [skge]
 [<ffffffff815da841>] dev_hard_start_xmit+0x301/0x6d0
 [<ffffffff815fd20e>] sch_direct_xmit+0xee/0x290
 [<ffffffff815dae88>] dev_queue_xmit+0x278/0x990
…


3.11-rc2:
…
skge 0000:01:09.0 enp1s9: Link is up at 1000 Mbps, full duplex, flow
control both
------------[ cut here ]------------
WARNING: at lib/dma-debug.c:937 check_unmap+0x47b/0x930()
skge 0000:01:09.0: DMA-API: device driver failed to check map
error[device address=0x00000000cd3ae902] [size=42 bytes] [mapped as single]
Modules linked in:
 skge raid1 nouveau video mxm_wmi i2c_algo_bit drm_kms_helper ttm drm
i2c_core wmi
CPU: 3 PID: 1784 Comm: setroubleshootd Not tainted
3.11.0-0.rc2.git0.1.fc20.x86_64.debug #1
Hardware name: Gigabyte Technology Co., Ltd. M720-US3/M720-US3, BIOS F7n
09/07/2010
 0000000000000009 ffff88012ac03c58 ffffffff8172eeab ffff88012ac03ca0
 ffff88012ac03c90 ffffffff810744fd ffff880128353ae0 ffff880124f48a28
 ffffffff82bd3c10 0000000000000282 ffffffff81a03c03 ffff88012ac03cf0
Call Trace:
 <IRQ>  [<ffffffff8172eeab>] dump_stack+0x54/0x74
 [<ffffffff810744fd>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff8107456c>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffff813943bb>] check_unmap+0x47b/0x930
 [<ffffffff810e90bd>] ? trace_hardirqs_on+0xd/0x10
 [<ffffffff813948cf>] debug_dma_unmap_page+0x5f/0x70
 [<ffffffffa01bdd35>] skge_poll+0xe5/0x9d0 [skge]
 [<ffffffff815f9071>] ? net_rx_action+0xa1/0x380
 [<ffffffff815f9142>] net_rx_action+0x172/0x380
 [<ffffffff8107ef77>] __do_softirq+0x107/0x410
 [<ffffffff8107f455>] irq_exit+0xc5/0xd0
 [<ffffffff81744596>] do_IRQ+0x56/0xc0
 [<ffffffff81738c72>] common_interrupt+0x72/0x72
 <EOI>  [<ffffffff81181583>] ? get_page_from_freelist+0x533/0x9a0
 [<ffffffff81021899>] ? sched_clock+0x9/0x10
 [<ffffffff81021899>] ? sched_clock+0x9/0x10
 [<ffffffff81181bc3>] __alloc_pages_nodemask+0x1d3/0xbe0
 [<ffffffff81021825>] ? native_sched_clock+0x15/0x80
 [<ffffffff81021899>] ? sched_clock+0x9/0x10
 [<ffffffff810e96d5>] ? __lock_acquire+0x2e5/0x1b10
 [<ffffffff810e5ed7>] ? __lock_is_held+0x57/0x80
 [<ffffffff811c660a>] alloc_pages_vma+0x9a/0x140
 [<ffffffff811a4b6b>] handle_pte_fault+0x6ab/0x990
 [<ffffffff811a5c95>] handle_mm_fault+0x2a5/0x5c0
 [<ffffffff8173ccb2>] __do_page_fault+0x162/0x5a0
 [<ffffffff810e8fed>] ? trace_hardirqs_on_caller+0xfd/0x1c0
 [<ffffffff810e90bd>] ? trace_hardirqs_on+0xd/0x10
 [<ffffffff8173803c>] ? _raw_spin_unlock_irq+0x2c/0x50
 [<ffffffff810b04dc>] ? finish_task_switch+0x7c/0x120
 [<ffffffff810b049f>] ? finish_task_switch+0x3f/0x120
 [<ffffffff81738d18>] ? retint_swapgs+0x13/0x1b
 [<ffffffff8137c02d>] ? trace_hardirqs_off_thunk+0x3a/0x3c
 [<ffffffff8173d0fe>] do_page_fault+0xe/0x10
 [<ffffffff81739008>] page_fault+0x28/0x30
---[ end trace aba61fbe029924e7 ]---
Mapped at:
 [<ffffffff813931f1>] debug_dma_map_page+0x91/0x140
 [<ffffffffa01bb140>] skge_xmit_frame+0x180/0x5d0 [skge]
 [<ffffffff815fb1b1>] dev_hard_start_xmit+0x301/0x6d0
 [<ffffffff8161deae>] sch_direct_xmit+0xee/0x290
 [<ffffffff815fb7fb>] dev_queue_xmit+0x27b/0x990
…


poma


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