Re: [ivtv-devel] [PATCH AVAIL.]ivtv:Crash 2.6.26 with KUROTOSIKOU CX23416-STVLP

From: Hans Verkuil
Date: Thu Jul 17 2008 - 12:00:28 EST

On Thursday 17 July 2008 17:20:14 Kyuma Ohta wrote:
> Hi,
> I'm testing 2.6.26/amd64 with Athlon64 x2 Box with
> KUROTOSIKOU CX23416-STVLP,always crash ivtv driver
> when loading upd64083 driver.
> I checked crash dump,this issue cause of loading
> upd64083.ko with i2c_probed_new_device().
> So,I fixed ivtv-i2c.c of 2.6.26 vanilla,and
> fixed *pretty* differnce memory allocation,structure
> of upd64083.c.
> I'm running patched 2.6.26 vanilla with below attached
> patches over 24hrs,and over 10hrs recording from ivtv,
> not happend anything;-)
> Please apply below to 2.6.26.x..
> Best regards,
> Ohta.

Hi Ohta,

Thanks for the patches. If I'm not mistaken there are several variants
of this card: without upd* devices, only with upd64083 and with both
upd devices. Which one do you have?

Can you also show the dmesg output when ivtv loads?

Looking at the four patches, I would say that the only relevant patch is
the fix-probing patch. If you try it with only that one applied, does
it still work correct for you? Note that this patch will not work with
a KUROTOSIKOU card that has no upd* devices at all.

Can you also give me the kernel backtrace when you load ivtv with the
vanilla 2.6.26? I do not quite understand why it should crash.


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