Comment 45 for bug 352228

I have the same type problem and issuing a "sudo restart network-manager" does the trick for me. Yes, I know, it makes no sense.

My log:
Oct 28 12:00:44 angry-butler09 wpa_supplicant[1146]: CTRL-EVENT-SCAN-RESULTS
Oct 28 12:00:44 angry-butler09 kernel: [10953.329376] iwlagn 0000:03:00.0: No space for Tx
Oct 28 12:00:44 angry-butler09 kernel: [10953.329381] iwlagn 0000:03:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -28
Oct 28 12:00:44 angry-butler09 kernel: [10953.329383] iwlagn 0000:03:00.0: Error setting new RXON (-28)
Oct 28 12:00:44 angry-butler09 kernel: [10953.329415] iwlagn 0000:03:00.0: No space for Tx
Oct 28 12:00:44 angry-butler09 kernel: [10953.329418] iwlagn 0000:03:00.0: Error sending REPLY_SCAN_CMD: enqueue_hcmd failed: -28
Oct 28 12:00:44 angry-butler09 kernel: [10953.329433] iwlagn 0000:03:00.0: No space for Tx
Oct 28 12:00:44 angry-butler09 kernel: [10953.329435] iwlagn 0000:03:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -28
Oct 28 12:00:44 angry-butler09 kernel: [10953.329436] iwlagn 0000:03:00.0: Error setting new RXON (-28)
Oct 28 12:00:44 angry-butler09 kernel: [10953.329438] iwlagn 0000:03:00.0: No space for Tx
Oct 28 12:00:44 angry-butler09 kernel: [10953.329440] iwlagn 0000:03:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -28
Oct 28 12:00:44 angry-butler09 kernel: [10953.329441] iwlagn 0000:03:00.0: Error setting new RXON (-28)
Oct 28 12:00:44 angry-butler09 kernel: [10953.329446] iwlagn 0000:03:00.0: No space for Tx
Oct 28 12:00:44 angry-butler09 kernel: [10953.329448] iwlagn 0000:03:00.0: Error sending REPLY_TX_POWER_DBM_CMD: enqueue_hcmd failed: -28
Oct 28 12:00:53 angry-butler09 kernel: [10963.061682] [drm:i915_gem_object_bind_to_gtt] *ERROR* GTT full, but LRU list empty
Oct 28 12:00:53 angry-butler09 kernel: [10963.061687] [drm:i915_gem_object_pin] *ERROR* Failure to bind: -28

$ uname -a
Linux angry-butler09 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux