Re: [xhci] null pointer dereference on ring_doorbell_for_active_rings

2013-07-28 Thread Oleksij Rempel
Hi Mathias, this bug makes me cry... same kernel config, same git revision... but i just can't reproduce it this... grrr. There is one more mysterious bug graphic related bug on this machine. May be they are related. Am 25.07.2013 18:07, schrieb Mathias Nyman: Hi I just started looking

Re: [xhci] null pointer dereference on ring_doorbell_for_active_rings

2013-07-25 Thread Mathias Nyman
Hi I just started looking at this issue as well from xhci perspective. From your Oops backtrace I can see that ring_doorbell_for_active_rings() was called from handle_cmd_completion() This should only happend if XHCI_RESET_EP_QUIRK is set, i.e. you have a Fresco Logic host controller. In

Re: [xhci] null pointer dereference on ring_doorbell_for_active_rings

2013-07-09 Thread Oleksij Rempel
You have right. this problem didn't disappear, it just masked and have other side effect. I get corrupt buffers after reloading of ath9k_htc(wifi usb adapter) ... some times laptop will crash in same way like the bug i reported you before.. If I reduce command buffer size (and size of urb) or

Re: [xhci] null pointer dereference on ring_doorbell_for_active_rings

2013-07-08 Thread Sarah Sharp
On Sat, Jul 06, 2013 at 11:13:15AM +0200, Oleksij Rempel wrote: Hi Sarah, thanks you or who ever fixed this issue. With latest wireless-testing i can't reproduce my crash any more. Instead i get this messages: What kernel is your wireless-testing branch based on? It would be nice to know

Re: [xhci] null pointer dereference on ring_doorbell_for_active_rings

2013-06-12 Thread Oleksij Rempel
Am 11.06.2013 19:34, schrieb Sarah Sharp: On Mon, Jun 10, 2013 at 08:55:56AM +0200, Oleksij Rempel wrote: Hello all, i'm working on usb_autosuspend for ath9k_htc and triggered this oops. Currently i do not know if real bug is in ath9k_htc or in xhci. Same adapter with same kernel and my

Re: [xhci] null pointer dereference on ring_doorbell_for_active_rings

2013-06-11 Thread Sarah Sharp
On Mon, Jun 10, 2013 at 08:55:56AM +0200, Oleksij Rempel wrote: Hello all, i'm working on usb_autosuspend for ath9k_htc and triggered this oops. Currently i do not know if real bug is in ath9k_htc or in xhci. Same adapter with same kernel and my patches work fine on ehci host... so may be

Re: [xhci] null pointer dereference on ring_doorbell_for_active_rings

2013-06-11 Thread Oleksij Rempel
Am 11.06.2013 19:34, schrieb Sarah Sharp: On Mon, Jun 10, 2013 at 08:55:56AM +0200, Oleksij Rempel wrote: Hello all, i'm working on usb_autosuspend for ath9k_htc and triggered this oops. Currently i do not know if real bug is in ath9k_htc or in xhci. Same adapter with same kernel and my

[xhci] null pointer dereference on ring_doorbell_for_active_rings

2013-06-10 Thread Oleksij Rempel
Hello all, i'm working on usb_autosuspend for ath9k_htc and triggered this oops. Currently i do not know if real bug is in ath9k_htc or in xhci. Same adapter with same kernel and my patches work fine on ehci host... so may be it is xhci. i get oops on this line: 426 static void