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Old 06-19-2011, 03:49 AM
Rolf Brudeseth
 
Default Backports to the rescue (was: dvgrab/firewire - partial video & no second download)

On 04/12/2011 02:07 AM, Кабиольский Евгений wrote:

Rolf Brudeseth wrote:

I am running into two problems with dvgrab.

Camcorder: Canon Elura 100 (miniDV)

- dvgrab will intermittently not download the entire image (~1 hour
video):


$ dvgrab -timestamp -size 0 -format raw
Found AV/C device with GUID 0x000085000110863c
Waiting for DV...
Capture Started
send oops
~ snip, deleted a whole bunch of 'send oops'
send oops

The size of the file varies each time I download from the Camcorder.

$ dmesg|grep firewire
[ 2.495874] firewire_ohci 0000:02:00.0: PCI INT A -> GSI 19
(level, low) -> IRQ 19

[ 2.495879] firewire_ohci 0000:02:00.0: setting latency timer to 64
[ 2.572029] firewire_ohci: Added fw-ohci device 0000:02:00.0, OHCI
version 1.10
[ 3.072420] firewire_core: created device fw0: GUID
001fc6000002998f, S400

[ 1829.024061] firewire_core: giving up on config rom for node id ffc1
[ 1832.187027] firewire_core: BM lock failed, making local node
(ffc0) root.
[ 1832.187036] firewire_core: phy config: card 0, new root=ffc0,
gap_count=5

[ 1832.189002] firewire_ohci: isochronous cycle inconsistent
[ 1832.709485] firewire_core: created device fw1: GUID
000085000110863c, S100


# tail -n 6 /var/log/messages
Apr 11 11:59:25 maiden kernel: [ 1829.024061] firewire_core: giving
up on config rom for node id ffc1
Apr 11 11:59:28 maiden kernel: [ 1832.187027] firewire_core: BM lock
failed, making local node (ffc0) root.
Apr 11 11:59:28 maiden kernel: [ 1832.187036] firewire_core: phy
config: card 0, new root=ffc0, gap_count=5
Apr 11 11:59:28 maiden kernel: [ 1832.189002] firewire_ohci:
isochronous cycle inconsistent
Apr 11 11:59:28 maiden kernel: [ 1832.709485] firewire_core: created
device fw1: GUID 000085000110863c, S100
Apr 11 13:14:55 maiden kernel: [ 6359.637894] dvgrab[2882]: segfault
at 2a100b0 ip 0000000002a100b0 sp 00007fff3d11f328 error 15


# lspci -vs 02:00.0
02:00.0 FireWire (IEEE 1394): JMicron Technology Corp. IEEE 1394 Host
Controller (prog-if 10 [OHCI])

Subsystem: ASUSTeK Computer Inc. Device 8313
Flags: bus master, fast devsel, latency 0, IRQ 19
Memory at feaff800 (32-bit, non-prefetchable) [size=2K]
Memory at feaff400 (32-bit, non-prefetchable) [size=128]
Memory at feaff000 (32-bit, non-prefetchable) [size=128]
Memory at feafec00 (32-bit, non-prefetchable) [size=128]
Capabilities: [44] Power Management version 3
Capabilities: [80] Express Endpoint, MSI 00
Capabilities: [94] MSI: Enable- Count=1/1 Maskable- 64bit-
Kernel driver in use: firewire_ohci

- dvgrab will consistently not allow me to download a second video
without a reboot


$ dvgrab -timestamp -size 0 -format raw
rom1394_0 warning: read failed: 0x0000fffff0000414
error reading config rom directory for node 0
rom1394_1 warning: read failed: 0x0000fffff0000414
error reading config rom directory for node 1
Error: no camera exists

Anybody got an idea what may be going on?

Rolf


First, try using legacy ieee1394 drivers. I think that you had no
problems using lenny =))). I had same problems using MyBook Studio II
external drive box. System suddenly loose my drive, until reboot. I
got kernel source, compiled it with legacy ieee1394 drivers and
blacklisted new firewire stack. I'm happy.


For those that have encountered the same problem, here was the clue to
resolving it:

https://ieee1394.wiki.kernel.org/index.php/Release_Notes

I successfully transferred the content of 30 minidv tapes after I
upgraded to the following backports kernel:

$ uname -r
2.6.38-bpo.2-amd64

Rolf


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