What is IRQL and why is it important?

re: What is IRQL and why is it important?

Pedro — Thu, 14 Mar 2013 17:37:47 GMT

What causes 'Worker Thread Returned At Bad IRQL'? I get a fairly regular blue screen based on this, and want to know what causes it and how to avoid it. If anyone knows the answer, could you post it please as it's really bugging me - 5th time in the past week.

re: What is IRQL and why is it important?

Leonard Severt _MSFT_ — Tue, 29 Jan 2013 16:56:32 GMT

If the processor is running at an IRQL >=2 and a driver (or Windows at the request of a driver) tries to access memory that is paged out (in page file) or invalid then system will bugcheck with a stop 0xA IRQL_not_less_or_equal. This can happen because memory address the driver is using is incorrect or the driver didn't check and lower the IRQL before trying to access the data. There are many causes for this. The simplest answer is if a driver is mentioned in the stop error then update that driver.

re: What is IRQL and why is it important?

explain this in plain English — Tue, 29 Jan 2013 03:52:04 GMT

Could you explain this in plain English. I have a problem with IRQL rebooting my computer. I know less now then when I started.

re: What is IRQL and why is it important?

rob — Thu, 24 Jan 2008 23:36:46 GMT

yep, the famous "IRQL not less or equal" bsod msg

What is IRQL and why is it important? » Lilu Drivers Blog

What is IRQL and why is it important? » Lilu Drivers Blog — Wed, 23 Jan 2008 04:28:43 GMT

PingBack from http://liludrivers.net/2008/01/22/what-is-irql-and-why-is-it-important/