hardclock interrupt deadlock

2003-10-16 Thread Michael Marchetti
Hi, We have encountered a problem where the system hangs. We are running a 4.7 SMP kernel using kernel polling on a Dual Xeon with hyperthreading enabled (essentially a 4 processor system). As a result, the only HW interrupts in the system are hardclock (8254), the rtc, serial console and scsi.

Re: hardclock interrupt deadlock

2003-10-16 Thread Luigi Rizzo
On Thu, Oct 16, 2003 at 11:17:50AM -0400, Michael Marchetti wrote: Hi, We have encountered a problem where the system hangs. We are running a 4.7 SMP kernel using kernel polling on a Dual Xeon with hyperthreading enabled puzzled on what you mean by kernel polling ... DEVICE_POLLING, if that

RE: hardclock interrupt deadlock

2003-10-16 Thread Michael Marchetti
I have enabled DEVICE_POLLING. It does work with SMP (disabled the check). -Original Message- From: Luigi Rizzo [mailto:[EMAIL PROTECTED] Sent: Thursday, October 16, 2003 11:49 AM To: Michael Marchetti Cc: '[EMAIL PROTECTED]'; '[EMAIL PROTECTED]' Subject: Re: hardclock interrupt

Re: hardclock interrupt deadlock

2003-10-16 Thread 'Luigi Rizzo'
luigi -Original Message- From: Luigi Rizzo [mailto:[EMAIL PROTECTED] Sent: Thursday, October 16, 2003 11:49 AM To: Michael Marchetti Cc: '[EMAIL PROTECTED]'; '[EMAIL PROTECTED]' Subject: Re: hardclock interrupt deadlock On Thu, Oct 16, 2003 at 11:17:50AM -0400, Michael Marchetti