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[Bug 1269986] Re: kernel oops - unable to handle kernel NULL pointer dereference; probe_monitoring_device / nouveau_i2c_identify

 

I can't run apport on the system in question as it fails to boot.  I can
grab additional logs from the filesystem if there's any specific
requests.

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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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:
  Confirmed

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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References