Public bug reported:
On an AMD-751 chipset based system (AMD Irongate) the nouveau kernel-
module fails to initialize printing some backtraces, like:
May 14 19:17:28 max-desktop kernel: [ 3.746994] [<c014c3d2>]
warn_slowpath_common+0x72/0xa0
May 14 19:17:28 max-desktop kernel: [ 3.747008] [<c0356215>] ?
bad_io_access+0x45/0x50
May 14 19:17:28 max-desktop kernel: [ 3.747020] [<c0356215>] ?
bad_io_access+0x45/0x50
May 14 19:17:28 max-desktop kernel: [ 3.747033] [<c014c44b>]
warn_slowpath_fmt+0x2b/0x30
May 14 19:17:28 max-desktop kernel: [ 3.747046] [<c0356215>]
bad_io_access+0x45/0x50
May 14 19:17:28 max-desktop kernel: [ 3.747059] [<c0356582>]
ioread32+0x22/0x40
May 14 19:17:28 max-desktop kernel: [ 3.747105] [<d8a286c8>]
nouveau_dma_wait+0x38/0x1b0 [nouveau]
May 14 19:17:28 max-desktop kernel: [ 3.747153] [<d8a2a4ec>]
nouveau_fence_emit+0x12c/0x170 [nouveau]
kernel-messages, lspci output and Xorg.log are attached.
** Affects: ubuntu
Importance: Undecided
Status: New
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Nouveau driver doesn't work for NV34 on AMD Irongate based system
https://bugs.launchpad.net/bugs/580656
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