Should I be worrying about this message?

dmesg reports the following debug message, I'm wondering if its
anything I should be worrying about?

> Debug: sleeping function called from invalid context at include/asm/semaphore.h:119
> in_atomic():1, irqs_disabled():1
> [<c011cad7>] __might_sleep+0xc7/0x1a0
> [<c030ba74>] dma_pool_destroy+0x24/0x140
> [<d084ad4b>] free_dma_rcv_ctx+0x7b/0x120 [ohci1394]
> [<d084809c>] ohci_devctl+0x18c/0x660 [ohci1394]
> [<c0103a7d>] setup_frame+0xcd/0x210
> [<c0103fd5>] handle_signal+0x145/0x190
> [<d0876ee2>] handle_iso_listen+0x182/0x1b0 [raw1394]
> [<d0879ccc>] state_connected+0x2cc/0x2e0 [raw1394]
> [<d0879d8a>] raw1394_write+0xaa/0xd0 [raw1394]
> [<c0162896>] vfs_write+0x116/0x160
> [<c01629b1>] sys_write+0x51/0x80
> [<c0104359>] sysenter_past_esp+0x52/0x71

Also I'm just starting off with 1394 and I was wondering if anyone
could point me in a good direction for capturing an mpeg2ts stream
from the port?

# kernel version: 2.6.8
# ieee 1394 version: in kernel
# libraw version: 1.2.0
# which driver: OHCI
# adapter card OHCI chipset: VIA VT 6306 139A
# output of lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8653 Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP]
00:0b.0 Ethernet controller: 3Com Corporation 3c905 100BaseTX [Boomerang]
00:0c.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host
Controller (rev 46)
00:0e.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC
Bus Master IDE (rev 06)
00:11.2 USB Controller: VIA Technologies, Inc. USB (rev 1b)
00:11.3 USB Controller: VIA Technologies, Inc. USB (rev 1b)
00:11.4 USB Controller: VIA Technologies, Inc. USB (rev 1b)
01:00.0 VGA compatible controller: nVidia Corporation NV15 [GeForce2
Ti] (rev a4)

other dmesg nibblets:

ohci1394: $Rev: 1223 $ Ben Collins <bcollins@debian.org>
ohci1394: fw-host0: OHCI-1394 1.0 (PCI): IRQ=[21] MMIO=[e3000000-e30007ff] Max
 Packet=[2048]
ieee1394: raw1394: /dev/raw1394 device initialized
video1394: Installed video1394 module
Adding 1020088k swap on /dev/hda2. Priority:1 extents:1
ieee1394: Host added: ID:BUS[0-00:1023] GUID[001106004227815b]
ieee1394: Node added: ID:BUS[0-02:1023] GUID[000e5cfffe5dfaf6]

-- 
Thanks,
Devan Lippman <devan@lippman.net>
617 571-3017
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