On 30.10.2013 17:16, Wolfram Sang wrote:
Hi,
sorry for the delay. The Kernel Summit made a pretty busy time out of
the last weeks...
I found one of my drivers was crashing when DTV USB stick was
plugged. Patch in that mail patch fixes the problem.
Well, if you have a parent, it should be set. This is always a good
idea. Can't really tell why not having it causes the BUG, though.
I quickly looked possible I2C patches causing the problem and saw
that one as most suspicions:
commit 3923172b3d700486c1ca24df9c4c5405a83e2309
i2c: reduce parent checking to a NOOP in non-I2C_MUX case
Did you try reverting it? I am not sure this is the one.
Nope, not to mentio bisect. I have done bisect few times and I am not
going to waste whole day of compiling and booting new kernels.
Crash disappeared whit that little patch. I did also some DVB USB core
changes for 3.12, but I cannot see it could be root of cause that crash.
i2c i2c-6: adapter [RTL2830 tuner I2C adapter] registered
BUG: unable to handle kernel NULL pointer dereference at 0000000000000220
IP: [<ffffffffa0002900>] i2c_register_adapter+0x130/0x390 [i2c_core]
Can we have the full BUG output?
See attachement.
Anyway, I am going to ask Mauro to merge that I2C parent patch and maybe
try to sent it stable too as it is likely a bit too late for 3.12 RC.
regards
Antti
--
http://palosaari.fi/
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