-------------------------------------------------------- This e-mail, including any attachments, may be confidential, privileged or otherwise legally protected. It is intended only for the addressee. If you received this e-mail in error or from someone who was not authorized to send it to you, do not disseminate, copy or otherwise use this e-mail or its attachments. Please notify the sender immediately by reply e-mail and delete the e-mail from your system. -----Original Message----- From: kernelnewbies-bounce@xxxxxxxxxxxx [mailto:kernelnewbies-bounce@xxxxxxxxxxxx] On Behalf Of Hemant Mohapatra Sent: Sunday, August 28, 2005 2:31 AM To: Gaurav Dhiman Cc: kernelnewbies Subject: Re: synchronisation question On 8/27/05, Gaurav Dhiman <gaurav4lkg@xxxxxxxxx> wrote: > Are you sure of it that cli()/sti() disable the interrupts on all > processors, i think it only disables the interrupts on local CPU. Well > the cli() function is defined as follows in include/linux/interrupt.h Yup, my bad. kernel 2.6 and above do not allow global interrupt disables. Thanks for pointing it out. Please clear this to me more-- Won't there be any synchronization issue between the interrupt-handler context on CPU1 and process context of CPU0? ./h -- Operating Systems and Computer Architecture Research - University of Cincinnati http://www.ececs.uc.edu/~mohapth -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
