linux-kernel - 2.6.30=rc6=git6 -- ata_piix 0000:00:1f.2: DMA-API: device driver maps memory from kernel text or rodata [addr=c0fff000]

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Date:	Sat, 23 May 2009 10:31:36 -0400
From:	Miles Lane <miles.lane@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: 2.6.30=rc6=git6 -- ata_piix 0000:00:1f.2: DMA-API: device driver maps 
	memory from kernel text or rodata [addr=c0fff000]

[  865.788574] WARNING: at lib/dma-debug.c:576
check_for_illegal_area+0xdb/0x105()
[  865.788585] Hardware name: 1000HE
[  865.788596] ata_piix 0000:00:1f.2: DMA-API: device driver maps
memory from kernel text or rodata [addr=c0fff000] [size=4096]
[  865.788607] Modules linked in: sco bnep rfcomm l2cap pci_slot
snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep
snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss
snd_seq_midi_event btusb snd_seq bluetooth snd_timer snd_seq_device
ath9k snd soundcore snd_page_alloc atl1e
[  865.788718] Pid: 1559, comm: mount.ntfs Not tainted 2.6.30-rc6-git6 #2
[  865.788727] Call Trace:
[  865.788745]  [<c10206f4>] warn_slowpath_common+0x65/0x7c
[  865.788761]  [<c11666e2>] ? check_for_illegal_area+0xdb/0x105
[  865.788777]  [<c102073f>] warn_slowpath_fmt+0x24/0x27
[  865.788793]  [<c11666e2>] check_for_illegal_area+0xdb/0x105
[  865.788811]  [<c1167629>] debug_dma_map_sg+0x10f/0x11b
[  865.788829]  [<c121347e>] ata_qc_issue+0x1b0/0x233
[  865.788848]  [<c1218cf0>] __ata_scsi_queuecmd+0x15a/0x1a7
[  865.788864]  [<c11fde34>] ? scsi_done+0x0/0xd
[  865.788879]  [<c12187d4>] ? ata_scsi_rw_xlat+0x0/0x1e9
[  865.788895]  [<c1218dbe>] ata_scsi_queuecmd+0x45/0x73
[  865.788909]  [<c11fde34>] ? scsi_done+0x0/0xd
[  865.788925]  [<c11fdf6e>] scsi_dispatch_cmd+0x12d/0x165
[  865.788941]  [<c1202253>] scsi_request_fn+0x299/0x3ca
[  865.788956]  [<c10282bf>] ? del_timer+0x47/0x4e
[  865.788974]  [<c11505b8>] __generic_unplug_device+0x26/0x29
[  865.788990]  [<c11505ff>] generic_unplug_device+0x21/0x2f
[  865.789006]  [<c11516c6>] blk_unplug+0x16/0x19
[  865.789021]  [<c11516d4>] blk_backing_dev_unplug+0xb/0xd
[  865.789038]  [<c10a57cf>] block_sync_page+0x24/0x28
[  865.789053]  [<c1069728>] sync_page+0x38/0x41
[  865.789068]  [<c106973a>] sync_page_killable+0x9/0x37
[  865.789085]  [<c13ab475>] __wait_on_bit_lock+0x34/0x6f
[  865.789099]  [<c1069731>] ? sync_page_killable+0x0/0x37
[  865.789115]  [<c1069613>] __lock_page_killable+0x71/0x78
[  865.789132]  [<c1030d9f>] ? wake_bit_function+0x0/0x37
[  865.789147]  [<c1069642>] lock_page_killable+0x28/0x2b
[  865.789162]  [<c106ad22>] generic_file_aio_read+0x315/0x493
[  865.789183]  [<c108c36c>] do_sync_read+0xaa/0xe5
[  865.789199]  [<c113181d>] ? file_has_perm+0x87/0xa1
[  865.789216]  [<c1030d70>] ? autoremove_wake_function+0x0/0x2f
[  865.789234]  [<c112e180>] ? security_file_permission+0xf/0x11
[  865.789250]  [<c108c43c>] ? rw_verify_area+0x95/0xb6
[  865.789265]  [<c108c2c2>] ? do_sync_read+0x0/0xe5
[  865.789280]  [<c108ca03>] vfs_read+0x8d/0xea
[  865.789296]  [<c108cab3>] sys_pread64+0x53/0x6b
[  865.789313]  [<c1002c34>] syscall_call+0x7/0xb
[  865.789325] ---[ end trace 1ec3ba9a74f5a8d5 ]---
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