Can you point me to code where kernel captures process in signal handling and code which runs after suspend to ram is finished?
-----Original Message----- From: Nigel Cunningham [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 18, 2007 7:19 PM To: Agarwal, Lomesh Cc: linux-kernel@vger.kernel.org Subject: Re: which signal is sent to freeze process? Hi. On Thursday 19 July 2007 09:42:02 Agarwal, Lomesh wrote: > My understanding is that Linux kernel sends a signal to freeze processes > during suspend2ram operation. Which signal is used to achieve this? > The problem I am facing is that some of the system calls are failing > with EINTR errno during suspend operation and I want to install a signal > handler for freeze signal with SA_RESTART flag. That should make the > kernel to retry the system calls. Right? No signal is sent. We tell affected processes that they have a signal pending, and capture them in the signal handling code while the suspend to ram is occuring. After the suspend to ram is finished, we recalculate whether they have a signal pending, and let them continue. Not being a guru on signal handling itself, I won't try to answer the question itself :\. Regards, Nigel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/