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Re: iwlwifi connection troubles, maybe aggregation related

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On Wed, Nov 4, 2009 at 4:59 AM, Greg Oliver <oliver.greg@xxxxxxxxx> wrote:
> On Wed, Nov 4, 2009 at 3:30 AM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote:
>> On Tue, 2009-11-03 at 18:38 -0500, Andrew Lutomirski wrote:
>>
>>> iwlagn 0000:03:00.0: iwl_tx_agg_start on ra = 00:21:d8:49:4a:52 tid = 0
>>
>>> Turning on or off power management and fiddling with
>>> no_sleep_autoadjust makes no difference.  Setting tx_agg_tid_enable to
>>> zero in debugfs while the connection was working seemed to make it a
>>> little more reliable (it lasted long enough to do "git pull" but not
>>> much longer).
>>>
>>> After running "iw dev wlan0 disconnect" a few times, I start to get
>>> errors like this:
>>>
>>> [18078.209635] iwlagn 0000:03:00.0: SENSITIVITY_CMD failed
>>> [18078.313461] iwlagn 0000:03:00.0: No space for Tx
>>> [18078.313467] iwlagn 0000:03:00.0: Error sending SENSITIVITY_CMD:
>>> enqueue_hcmd failed: -28
>>> [18078.313470] iwlagn 0000:03:00.0: SENSITIVITY_CMD failed
>>> [18078.522409] iwlagn 0000:03:00.0: No space for Tx
>>> [18078.522414] iwlagn 0000:03:00.0: Error sending SENSITIVITY_CMD:
>>> enqueue_hcmd failed: -28
>>
>> Sounds like the firmware messes up ...
>>
>> Maybe as a first workaround you could modprobe iwlagn with
>> 11n_disable=1. But I don't know at this point what the problem could be.
>>
>> johannes
>>
>
> I am also still getting oops' with -rc5..
>
> [36759.355012] Pid: 0, comm: swapper Tainted: P
> 2.6.31-14-generic #48-Ubuntu
> [36759.355018] Call Trace:
> [36759.355022]  <IRQ>  [<ffffffff810e083c>] __alloc_pages_slowpath+0x4cc/0x4e0
> [36759.355047]  [<ffffffff810e099e>] __alloc_pages_nodemask+0x14e/0x150
> [36759.355059]  [<ffffffff81111dfa>] kmalloc_large_node+0x5a/0xb0
> [36759.355067]  [<ffffffff81115fa5>] __kmalloc_node_track_caller+0x135/0x180
> [36759.355109]  [<ffffffffa03c7977>] ? iwl_rx_allocate+0x197/0x2f0 [iwlcore]
> [36759.355121]  [<ffffffff8142e41b>] __alloc_skb+0x7b/0x180
> [36759.355146]  [<ffffffffa03c7977>] iwl_rx_allocate+0x197/0x2f0 [iwlcore]
> [36759.355171]  [<ffffffffa03c8de6>] iwl_rx_replenish_now+0x16/0x30 [iwlcore]
> [36759.355191]  [<ffffffffa03e4f18>] iwl_rx_handle+0x288/0x2f0 [iwlagn]
> [36759.355208]  [<ffffffffa03e5708>] iwl_irq_tasklet+0x138/0x4e0 [iwlagn]
> [36759.355220]  [<ffffffff810741e0>] ? delayed_work_timer_fn+0x0/0x40
> [36759.355228]  [<ffffffff81073d82>] ? insert_work+0x72/0xc0
> [36759.355239]  [<ffffffff81036419>] ? default_spin_lock_flags+0x9/0x10
> [36759.355248]  [<ffffffff81063ee0>] tasklet_action+0xd0/0xe0
> [36759.355257]  [<ffffffff8106549d>] __do_softirq+0xbd/0x200
> [36759.355266]  [<ffffffff810131ec>] call_softirq+0x1c/0x30
> [36759.355273]  [<ffffffff81014bc5>] do_softirq+0x55/0x90
> [36759.355281]  [<ffffffff81065205>] irq_exit+0x85/0x90
> [36759.355287]  [<ffffffff81014100>] do_IRQ+0x70/0xe0
> [36759.355296]  [<ffffffff81012a13>] ret_from_intr+0x0/0x11
> [36759.355301]  <EOI>  [<ffffffff812d7ed9>] ? acpi_idle_enter_bm+0x28b/0x2bf
> [36759.355317]  [<ffffffff812d7ed2>] ? acpi_idle_enter_bm+0x284/0x2bf
> [36759.355327]  [<ffffffff813fe40b>] ? cpuidle_idle_call+0x9b/0xf0
> [36759.355335]  [<ffffffff81010e12>] ? cpu_idle+0xb2/0x100
> [36759.355344]  [<ffffffff81514c56>] ? rest_init+0x66/0x70
> [36759.355355]  [<ffffffff8183a047>] ? start_kernel+0x352/0x35b
> [36759.355364]  [<ffffffff8183959a>] ? x86_64_start_reservations+0x125/0x129
> [36759.355372]  [<ffffffff81839698>] ? x86_64_start_kernel+0xfa/0x109
>
> Same oops' as with -rc4 it seems..  It does not hard lock anything -
> this is not during any suspend/resume..  This laptop is always on..
>
> [36894.090466] iwlagn 0000:04:00.0: Failed to allocate SKB buffer with
> GFP_ATOMIC. Only 0 free buffers remaining.
>
> -Greg
>

Disregard that - I forgot I was not using the -rc5 currently....
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