> -----Original Message----- > From: Dan Carpenter [mailto:dan.carpenter@xxxxxxxxxx] > Sent: Saturday, September 9, 2017 4:04 AM > To: KY Srinivasan <kys@xxxxxxxxxxxxx> > Cc: x86@xxxxxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx; olaf@xxxxxxxxx; > apw@xxxxxxxxxxxxx; jasowang@xxxxxxxxxx; tglx@xxxxxxxxxxxxx; > hpa@xxxxxxxxx; mingo@xxxxxxxxxx > Subject: Re: [PATCH 1/1] x86/hyper-V: Allocate the IDT entry early in boot > > On Fri, Sep 08, 2017 at 04:15:57PM -0700, kys@xxxxxxxxxxxxxxxxxxxxxx > wrote: > > From: "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx> > > > > Allocate the hypervisor callback IDT entry early in the boot sequence. > > > > I'm guessing this fixes a NULL dereference or something? The changelog > doesn't really say why we are doing this. The changelog does say what we are doing - allocating the IDT entry early in the boot sequence. The current code would allocate the entry as part of registering the handler when vmbus driver loaded and this caused a problem for the cleanup Thomas had implemented. K. Y > > regards, > dan carpenter _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
