[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-04-03 Thread Tim Gardner
Not a kernel bug.

** Changed in: linux-source-2.6.20 (Ubuntu)
 Assignee: (unassigned) = Ubuntu Kernel Team
   Status: Unconfirmed = Rejected

-- 
modprobe.d blacklist of cx8800 driver does not work for recompiled kernel
https://launchpad.net/bugs/98982

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: lspci-vv-2.6.20.3-ubuntu1.070326.log
   http://librarian.launchpad.net/7056224/lspci-vv-2.6.20.3-ubuntu1.070326.log

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modprobe.d blacklist of cx8800 driver does not work for recompiled kernel
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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: dmesg-2.6.20.3-ubuntu1.070326.log
   http://librarian.launchpad.net/7056218/dmesg-2.6.20.3-ubuntu1.070326.log

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modprobe.d blacklist of cx8800 driver does not work for recompiled kernel
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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: lsmod-2.6.20-13-generic.log
   http://librarian.launchpad.net/7056221/lsmod-2.6.20-13-generic.log

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modprobe.d blacklist of cx8800 driver does not work for recompiled kernel
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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: lspci-vv-2.6.20-13-generic.log
   http://librarian.launchpad.net/7056228/lspci-vv-2.6.20-13-generic.log

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modprobe.d blacklist of cx8800 driver does not work for recompiled kernel
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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: lspci-vvnn-2.6.20.3-ubuntu1.070326.log
   http://librarian.launchpad.net/7056229/lspci-vvnn-2.6.20.3-ubuntu1.070326.log

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modprobe.d blacklist of cx8800 driver does not work for recompiled kernel
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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: dmesg-2.6.20-13-generic.log
   http://librarian.launchpad.net/7056219/dmesg-2.6.20-13-generic.log

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: proc_version-2.6.20.3-ubuntu1.070326.log
   
http://librarian.launchpad.net/7056235/proc_version-2.6.20.3-ubuntu1.070326.log

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: proc_version-2.6.20-13-generic.log
   http://librarian.launchpad.net/7056236/proc_version-2.6.20-13-generic.log

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: uname-a-2.6.20.3-ubuntu1.070326.log
   http://librarian.launchpad.net/7056239/uname-a-2.6.20.3-ubuntu1.070326.log

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: uname-a-2.6.20-13-generic.log
   http://librarian.launchpad.net/7056249/uname-a-2.6.20-13-generic.log

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: lspci-vvnn-2.6.20-13-generic.log
   http://librarian.launchpad.net/7056232/lspci-vvnn-2.6.20-13-generic.log

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: /etc/modprobe.d/blacklist-cx8800
   http://librarian.launchpad.net/7056251/blacklist-cx8800

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck

** Attachment added: lsmod-2.6.20.3-ubuntu1.070326.log
   http://librarian.launchpad.net/7056258/lsmod-2.6.20.3-ubuntu1.070326.log

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modprobe.d blacklist of cx8800 driver does not work for recompiled kernel
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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread Jens Abraham
** Changed in: Ubuntu
Sourcepackagename: None = linux-source-2.6.20

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck
Also, I should note that the cx8800 driver unloads and loads properly
when I use modprobe.  So for example, once the machine is booted with
the recompiled kernel, if I execute

modprobe -r cx8800

the module unloads properly as checked with a subsequent lsmod.

Also, the cx88-dvb driver loads properly using modprobe, and does so
whether or not the cx8800 driver is also loaded (but does not load
automatically).

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread Tim Gardner
Enter a reference to cx8800 in /etc/modules and it should be loaded
automatically.

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread Tim Gardner
Oops. I ripped through too fast. Its still not a kernel bug. The
attached module listing shows cx8802 (the base driver), but you have
black listed cx8800.

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[Bug 98982] Re: modprobe.d blacklist of cx8800 driver does not work for recompiled kernel

2007-03-30 Thread heckheck
Well it doesn't seem quite as simple as that.  I now have blacklisted
all of the following drivers

---
$ cat /etc/modprobe.d/blacklist-cx8800
# 2.6.20.3 kernel seems to find the analog driver
# for the PCHDTV 5500 card and fail to load
# the dvb driver, so blacklist it
blacklist cx8800
blacklist cx8802
blacklist cx88_alsa
blacklist cx88xx
-

yet still the cx88xx and cx8800 drivers are getting loaded despite being
blacklisted.


*following reboot*
-
$ lsmod |grep cx
cx8800 41356  0 
cx88xx 74916  1 cx8800
video_buf  29956  3 cx8800,cx88xx,bttv
ir_common  34564  2 cx88xx,bttv
compat_ioctl32 11520  2 cx8800,bttv
btcx_risc   6920  3 cx8800,cx88xx,bttv
i2c_algo_bit9864  3 cx88xx,bttv,ivtv
cx2341x14084  1 ivtv
tveeprom   19472  3 cx88xx,bttv,ivtv
videodev   30080  4 cx8800,cx88xx,bttv,ivtv
v4l2_common29056  9 
cx8800,bttv,compat_ioctl32,msp3400,saa7115,tuner,ivtv,cx2341x,videodev
v4l1_compat15236  3 cx8800,ivtv,videodev
i2c_core   26880  12 
cx88xx,bttv,lirc_i2c,i2c_ec,msp3400,saa7115,tuner,ivtv,nvidia,i2c_algo_bit,tveeprom,i2c_nforce2
--

Note that the cx8802 and cx88_alsa drivers are not being loaded but the
cx8800 and cx88xx drivers are being loaded.  Perhaps some other driver
is pulling them in, but they don't seem to be in use, since I can easily
remove them manually with

modprobe -r cx8800

I can easily remove the drivers and emulate the blacklist by putting
this line in rc.local, but that still begs the question as to why
blacklisted drivers are allowed to load in the first place with the
custom kernel.  This does NOT happen with the generic kernel, which I
find quite curious.

Call it a bug or not, but I call it disturbing.

Dunno,

-Jim Heck

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