kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Can you follow the "Boot options" instructions on the following wiki to
enable additional output on boot:

https://wiki.ubuntu.com/DebuggingKernelBoot

As mentioned on the wiki, it would be great if you can attach a log file
which may have captured any messages you see. If you are unable to
capture a log file, a digital photo will work just as well. As a last
resort you can even copy messages down by hand.


** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1269986

Title:
  kernel oops - unable to handle kernel NULL pointer dereference;
  probe_monitoring_device / nouveau_i2c_identify

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Jan 16 17:58:34 asdf-linux kernel: [    8.158262] BUG: unable to handle kernel NULL pointer dereference at 00000000000000fc
  Jan 16 17:58:34 asdf-linux kernel: [    8.158367] IP: [<ffffffffa02699f8>] probe_monitoring_device+0xb8/0xf0 [nouveau]
  Jan 16 17:58:34 asdf-linux kernel: [    8.158466] PGD cad47067 PUD cad48067 PMD 0 
  Jan 16 17:58:34 asdf-linux kernel: [    8.158598] Oops: 0000 [#1] SMP 

  ...

  Jan 16 17:58:34 asdf-linux kernel: [    8.160001] Call Trace:
  Jan 16 17:58:34 asdf-linux kernel: [    8.160001]  [<ffffffffa0261ee8>] nouveau_i2c_identify+0x108/0x230 [nouveau]
  Jan 16 17:58:34 asdf-linux kernel: [    8.160001]  [<ffffffffa0269ba2>] nouveau_therm_ic_ctor+0x172/0x180 [nouveau]
  Jan 16 17:58:34 asdf-linux kernel: [    8.160001]  [<ffffffffa023c59c>] ? therm_table+0x10c/0x150 [nouveau]

  ...

  
  (full log attached)

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