On Thu, Oct 18, 2012 at 10:37 PM, Alan Stern wrote:
> On Thu, 18 Oct 2012, Pavan Kondeti wrote:
>
>> Hi Alan,
>>
>> I have a theoretical question in EHCI driver. We ensure that there is
>> 5 msec window between suspend and next resume by keeping time_before()
>&g
Hi Alan,
I have a theoretical question in EHCI driver. We ensure that there is
5 msec window between suspend and next resume by keeping time_before()
check in ehci_bus_resume function. If the next_statechange update in
suspend occur just before the next timer tick (say 1 jiffies = 10
msec), then t
On 9/12/2012 6:29 PM, Alan Stern wrote:
> On Wed, 12 Sep 2012, Pavan Kondeti wrote:
>
>> Thanks for your response. I and Hemant work together. We are thinking a
>> scenario where this NULL dereference could happen. Please let us know if
>> our understanding is correct or n
Hi Alan Stern,
On 9/12/2012 5:59 AM, Alan Stern wrote:
> On Tue, 11 Sep 2012, Hemant Kumar wrote:
>
>> Hi
>>
>> I came across an issue where I see WARN_ON from iaa_watchdog_start() and
>> after almost 10ms I see NULL ptr dereference in start_unlink_async()
>> It happens exactly here
>> prev
On 9/7/2012 9:22 PM, Alan Stern wrote:
> On Fri, 7 Sep 2012, Pavankumar Kondeti wrote:
>
>> There is a possibility of QH overlay region having reference to a stale
>> qTD pointer during unlink.
>>
>> Consider an endpoint having two pending qTD before unlink process begins.
>> The endpoint's QH que
On 9/6/2012 10:57 PM, Alan Stern wrote:
> On Thu, 6 Sep 2012, Pavan Kondeti wrote:
>
>> Hi
>>
>> I am debugging "EHCI host system error" (4.15.2.4) issue. The issue
>> happens during unlinking of URB from an interface driver. In our system
>> th
Hi
I am debugging "EHCI host system error" (4.15.2.4) issue. The issue
happens during unlinking of URB from an interface driver. In our system
the device is always connected to the host. some interfaces are always
active (I/O can happen). Other interface's I/O depends on the user
space. if user op
On 8/7/2012 7:06 PM, pkond...@codeaurora.org wrote:
> unsubscribe linux-usb
>
Sorry for the noise and spam :-( For some reason, I stopped receiving
emails from this list. I am suggested to re-subscribe to the list. I end
up sending unsubscribe request to wrong list. Every thing is good now.
Than
