To elaborate on a point..
The hard lockup within three minutes can be either doing a live stream
from the cam (ie. using xawtv), or it can be after taking one snapshot
(ie. with vidcat). So, it doesn't matter how much it's being used, but rather
that it has been used. To further illustrate that point, I can load the
drivers, not use the camera, and not crash all day. But, as soon as I take
one snapshot, the machine is bound to lockup within a few minutes.
On Fri, 21 Apr 2000, Robert Dale wrote:
> I have a Creative WebCam3 and am using it with a Gigabyte GA-71XE which
> uses the Advanced Micro Devices [AMD] AMD-756 [Viper] USB chipset.
>
> My problem is I get hard lockups after a short (less than three minutes)
> period of time when using my webcam. It's the only USB device connected.
> I've tried un/loading the ov511 driver before/after taking a snapshot,
> un/loading the videdev on top of that, and un/loading the entire usb stack
> on top of that. Each of those events get progressively worse - in other words,
> loading the driver once I can get up to 3 mintues whereas unloading the entire
> usb stack then reloading it before I want to use the cam I get about 15 seconds.
>
> I've talked to the ov511 author and he's coming out with a new driver soon
> which I will test. He's also reported that another person in a similar
> situation (ohci + webcam) is having the same problem.
>
> I leave with you my dmesg and an offer to help test anything you can think
> of, outside of meddling with code.
>
> Thank you.
>
> dmesg:
>
> Linux version 2.3.99-pre6 (superluminal) (gcc version egcs-2.91.66 19990314/Linux
>(egcs-1.1.2 release)) #1 Thu Apr 20 15:14:36 EDT 2000
> e820: 0009fc00 @ 00000000 (usable)
> e820: 00000400 @ 0009fc00 (reserved)
> e820: 00010000 @ 000f0000 (reserved)
> e820: 0fef0000 @ 00100000 (usable)
> e820: 00008000 @ 0fff0000 (ACPI data)
> e820: 00008000 @ 0fff8000 (ACPI NVS)
> e820: 00010000 @ ffff0000 (reserved)
> On node 0 totalpages: 65024
> zone(0): 4096 pages.
> zone(1): 60928 pages.
> zone(2): 0 pages.
> Initializing CPU#0
> Detected 706969205 Hz processor.
> Console: colour VGA+ 80x25
> Calibrating delay loop... 1409.02 BogoMIPS
> Memory: 253064k/260096k available (1255k kernel code, 6644k reserved, 88k data, 152k
>init, 0k highmem)
> Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
> CPU: L1 I Cache: 64K L1 D Cache: 64K
> CPU: L2 Cache: 512K
> CPU: AMD AMD Athlon(tm) Processor stepping 01
> Checking 386/387 coupling... OK, FPU using exception 16 error reporting.
> Checking 'hlt' instruction... OK.
> POSIX conformance testing by UNIFIX
> mtrr: v1.36 (20000221) Richard Gooch ([EMAIL PROTECTED])
> PCI: PCI BIOS revision 2.10 entry at 0xfdb71, last bus=1
> PCI: Using configuration type 1
> PCI: Probing PCI hardware
> PCI: Using IRQ router default [1022/740b] at 00:07.3
> Linux NET4.0 for Linux 2.3
> Based upon Swansea University Computer Society NET3.039
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 2048 buckets, 16Kbytes
> TCP: Hash tables configured (established 16384 bind 16384)
> Starting kswapd v1.6
> pty: 256 Unix98 ptys configured
> Uniform Multi-Platform E-IDE driver Revision: 6.30
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> AMD7409: IDE controller on PCI bus 00 dev 39
> AMD7409: not 100% native mode: will probe irqs later
> ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
> ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:pio
> hda: IBM-DPTA-372050, ATA DISK drive
> hdc: WDC AC21600H, ATA DISK drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> hda: 40088160 sectors (20525 MB) w/1961KiB Cache, CHS=2495/255/63, UDMA(33)
> hdc: 3173184 sectors (1625 MB) w/128KiB Cache, CHS=3148/16/63, DMA
> Partition check:
> hda: hda1 hda2 < hda5 hda6 hda7 hda8 hda9 >
> hdc: [PTBL] [787/64/63] hdc1 hdc2
> Floppy drive(s): fd0 is 1.44M
> FDC 0 is a post-1991 82077
> Serial driver version 4.93 (2000-03-20) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
> ttyS00 at 0x03f8 (irq = 4) is a 16550A
> ttyS01 at 0x02f8 (irq = 3) is a 16550A
> Linux Tulip driver version 0.9.4.3 (Apr 14, 2000)
> eth0: Digital DS21140 Tulip rev 34 at 0xde00, 00:80:C8:45:B0:25, IRQ 11.
> eth0: EEPROM default media type Autosense.
> eth0: Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
> eth0: MII transceiver #0 config 1000 status 782d advertising 01e1.
> Linux agpgart interface v0.99 (c) Jeff Hartmann
> agpgart: Maximum main memory to use for agp memory: 202M
> agpgart: Detected AMD Irongate chipset
> agpgart: AGP aperture is 64M @ 0xe8000000
> kmem_create: Forcing size word alignment - nfs_fh
> VFS: Mounted root (ext2 filesystem) readonly.
> Freeing unused kernel memory: 152k freed
> Adding Swap: 530104k swap-space (priority -1)
> usb.c: registered new driver hub
> usb-ohci.c: USB OHCI at membase 0xd086d000, IRQ 9
> usb-ohci.c: Advanced Micro Devices [AMD] AMD-756 [Viper] USB
> usb.c: new USB bus registered, assigned bus number 1
> usb.c: USB new device connect, assigned device number 1
> usb.c: kmalloc IF c04c1ac0, numif 1
> usb.c: new device strings: Mfr=0, Product=2, SerialNumber=1
> usb.c: USB device number 1 default language ID 0x0
> Product: USB OHCI Root Hub
> SerialNumber: d086d000
> hub.c: USB hub found
> hub.c: 4 ports detected
> hub.c: ganged power switching
> hub.c: standalone hub
> hub.c: global over-current protection
> hub.c: power on to power good time: 0ms
> hub.c: hub controller current requirement: 0mA
> hub.c: port 1 is removable
> hub.c: port 2 is removable
> hub.c: port 3 is removable
> hub.c: port 4 is removable
> hub.c: local power source is good
> hub.c: no over-current condition exists
> hub.c: enabling power on all ports
> usb.c: hub driver claimed interface c04c1ac0
> Linux video capture interface: v1.00
> usb.c: registered new driver ov511
> ov511.c: ov511 driver registered
> hub.c: port 1 connection change
> hub.c: portstatus 101, change 1, High Speed
> hub.c: portstatus 103, change 10, High Speed
> usb.c: USB new device connect, assigned device number 2
> usb.c: kmalloc IF c04c1980, numif 1
> usb.c: new device strings: Mfr=0, Product=0, SerialNumber=0
> ov511: probing for device...
> ov511.c: USB OV511 camera found
> ov511: Camera is a Creative Labs WebCam 3
> ov511: Reset: type=0x3F
> ov511: Sensor is an OV7610
> ov511: set packet size: 0, mult=0, alt=7
> ov511: Reset: type=0x3F
> ov511: ov511_mode_init_regs(ov511, w:640, h:480, mode:4, sub:0)
> usb.c: ov511 driver claimed interface c04c1980
>
>
> --
> Robert Dale
>
> Digital Mission
>
>
>
>
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