Re: [ath9k-devel] ath9k causes lockups since kernel 2.6.35

On Fri, Feb 25, 2011 at 1:32 AM, Jonathan Nieder [off-list ref] wrote:

(just cc-ing some people listed in MAINTAINERS)
Hi,

Tony Houghton wrote:

quoted

With 2.6.37 I can not use suspend on my Compaq/HP 311c (Intel Atom
N270/NVidia Ion LE). Originally the machine just kept locking up without
even blanking the display when I tried to suspend (using the GNOME menu
or by shutting the lid). I upgraded upower and gnome-power-manager etc
to experimental and after that the machine suspended OK but could not
resume. The backlight came on but the screen stayed blank and I could
not get to a console or anything with Alt+Fn.

[...]

quoted

I tried replacing network-manager with wicd but that crashed the system
when it connected instead of when disconnected.

[...]

quoted

While testing different kernels I found it would crash at different
times, usually before the screen turned off for suspending, but
sometimes it would crash on resuming and occasionally it locked up while
booting, but it's always a complete lock-up ie the keyboard is
completely responsive, including caps lock, the mouse won't move if the
display is still on, and the only way out is to hold down the power
button.

[...]

quoted

I haven't tried looking in logs because the crashes are so severe I
don't think they'd be able to record anything useful. But using git
bisect I think I have tracked down the change that started causing this
problem:

53bc7aa08b48e5cd745f986731cc7dc24eef2a9f is the first bad commit
commit 53bc7aa08b48e5cd745f986731cc7dc24eef2a9f
Author: Vivek Natarajan [off-list ref]
Date:   Mon Apr 5 14:48:04 2010 +0530

    ath9k: Add support for newer AR9285 chipsets.

    This patch adds support for a modified newer version of AR9285
    chipsets.

    Signed-off-by: Vivek Natarajan [off-list ref]
    Signed-off-by: John W. Linville [off-list ref]

The adaptor is an AR9285[1].

That commit is based against v2.6.33 and was merged in v2.6.35-rc1

$ git describe 53bc7aa08b48e5cd745f986731cc7dc24eef2a9f
v2.6.33-3523-g53bc7aa
$ git name-rev --tags 53bc7aa08b48e5cd745f986731cc7dc24eef2a9f
53bc7aa08b48e5cd745f986731cc7dc24eef2a9f tags/v2.6.35-rc1~473^2~167^2~346

Any ideas for tracking this down?

is this issue still reproducible ?
Apart from this reporting I have not seen any other  issues for AR9285.

Thanks,
Jonathan

[1]

quoted

84: udi = '/org/freedesktop/Hal/devices/pci_168c_2b'
  pci.device_protocol = 0  (0x0)  (int)
  pci.vendor = 'Atheros Communications Inc.'  (string)
  info.vendor = 'Atheros Communications Inc.'  (string)
  pci.product = 'AR9285 Wireless Network Adapter
(PCI-Express)'  (string) linux.sysfs_path =
'/sys/devices/pci0000:00/0000:00:15.0/0000:03:00.0'  (strin g)
  info.parent = '/org/freedesktop/Hal/devices/pci_10de_ac6'  (string)
  info.linux.driver = 'ath9k'  (string)
  pci.subsys_vendor = 'Hewlett-Packard Company'  (string)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'pci'  (string)
  info.subsystem = 'pci'  (string)
  info.product = 'AR9285 Wireless Network Adapter
(PCI-Express)'  (string) info.udi =
'/org/freedesktop/Hal/devices/pci_168c_2b'  (string)
pci.linux.sysfs_path =
'/sys/devices/pci0000:00/0000:00:15.0/0000:03:00.0'  (string)
pci.product_id = 43  (0x2b)  (int) pci.vendor_id = 5772  (0x168c)
(int) pci.subsys_product_id = 12352  (0x3040)  (int)
pci.subsys_vendor_id = 4156  (0x103c)  (int) pci.device_class = 2
(0x2)  (int) pci.device_subclass = 128  (0x80)  (int)

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