[ivtv-users] reboots with kernel > 2.6.22

[Jeroen Roos]

On Thursday 11 June 2009 20:59:55 Jeroen Roos wrote:
Hello all,

I reported this problem to the list some time ago. Unfortunately I have not 
had much time to look into it. 

> I have a PVR-500 card on a Via Epia EN15000 board. I am running Gentoo
> Linux on it for MyhthTV. Ever since upgrading from kernel 2.6.22, I have
> been having reboots on my system whenever it tries recording something.
> Because I have had some issues with the SATA drivers on it previously, I
>  have always suspected that to be the problem, however, after some more
> research I am now pretty sure that the IVTV driver is the culprit.

There were a few replies, most regarding the ivtv version I was using (1.4.0). 
I have now upgraded to a newer kernel; tried both Gentoo's 2.6.30-gentoo-r4 
and the vanilla 2.6.30.3 kernels and, unfortunately, the issue remains.

At least I am now on 1.4.1:
jeroen at video ~ $ dmesg | grep ivtv | grep version
ivtv: Start initialization, version 1.4.1

> I can easily reproduce the problem by running:
>
> dd if=/dev/video0 of=/dev/null bs=64k count=10000
>
> usually it reboots before it reaches 5000 blocks, sometimes it takes a
> little longer, but eventually the system reboots.
>
> I think that I rule out all other components of the system by copying to
> /dev/null.

I can still consistently trigger a reboot with this command.

Any ideas?

Thanks & best regards,
Jeroen


Some more info:

jeroen at video ~ $ dmesg | grep ivtv
ivtv: Start initialization, version 1.4.1
ivtv0: Initializing card 0
ivtv0: Autodetected Hauppauge card (cx23416 based)
ivtv 0000:04:08.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
ivtv0: Autodetected WinTV PVR 500 (unit #1)
cx25840 1-0044: cx25843-24 found @ 0x88 (ivtv i2c driver #0)
tuner 1-0060: chip found @ 0xc0 (ivtv i2c driver #0)
tuner 1-0043: chip found @ 0x86 (ivtv i2c driver #0)
tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)
wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #0)
IRQ 17/ivtv0: IRQF_DISABLED is not guaranteed on shared IRQs
ivtv0: Registered device video0 for encoder MPG (4096 kB)
ivtv0: Registered device video32 for encoder YUV (2048 kB)
ivtv0: Registered device vbi0 for encoder VBI (1024 kB)
ivtv0: Registered device video24 for encoder PCM (320 kB)
ivtv0: Registered device radio0 for encoder radio
ivtv0: Initialized card: WinTV PVR 500 (unit #1)
ivtv1: Initializing card 1
ivtv1: Autodetected Hauppauge card (cx23416 based)
ivtv 0000:04:09.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
ivtv1: Unreasonably low latency timer, setting to 64 (was 32)
ivtv1: Correcting tveeprom data: no radio present on second unit
ivtv1: Autodetected WinTV PVR 500 (unit #2)
cx25840 2-0044: cx25843-24 found @ 0x88 (ivtv i2c driver #1)
tuner 2-0043: chip found @ 0x86 (ivtv i2c driver #1)
tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #1)
wm8775 2-001b: chip found @ 0x36 (ivtv i2c driver #1)
IRQ 18/ivtv1: IRQF_DISABLED is not guaranteed on shared IRQs
ivtv1: Registered device video1 for encoder MPG (4096 kB)
ivtv1: Registered device video33 for encoder YUV (2048 kB)
ivtv1: Registered device vbi1 for encoder VBI (1024 kB)
ivtv1: Registered device video25 for encoder PCM (320 kB)
ivtv1: Initialized card: WinTV PVR 500 (unit #2)
ivtv: End initialization
ivtv 0000:04:08.0: firmware: requesting v4l-cx2341x-enc.fw
ivtv0: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv0: Encoder revision: 0x02060039
ivtv 0000:04:09.0: firmware: requesting v4l-cx2341x-enc.fw
ivtv1: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv1: Encoder revision: 0x02060039




video ~ # lspci | grep video
04:08.0 Multimedia video controller: Internext Compression Inc iTVC16
(CX23416) MPEG-2 Encoder (rev 01)
04:09.0 Multimedia video controller: Internext Compression Inc iTVC16
(CX23416) MPEG-2 Encoder (rev 01)

video ~ # uname -a
Linux video 2.6.30.3 #1 SMP Mon Aug 17 09:49:43 CEST 2009 i686 VIA Esther 
processor 1500MHz CentaurHauls GNU/Linux