From: Avi Kivity Date: Sat, 03 Mar 2007 08:22:13 GMT Subject: Re: [patch] KVM: T60 resume fix Message-ID: <45E93035.2070509@qumranet.com> In-Reply-To: <20070302113920.GB9367@mellanox.co.il> Michael S. Tsirkin wrote: >> Quoting Ingo Molnar : >> Subject: [patch] KVM: T60 resume fix >> From: Ingo Molnar >> >> my T60 laptop does not resume correctly due to KVM attempting to send an >> IPI to a CPU that might be down (or not up yet). (Doing so also triggers >> the send_IPI_mask_bitmask() warning in arch/i386/kernel/smp.c, line >> 732.) >> >> with this fix applied my laptop does not hang during resume. >> >> [ KVM will have to disable/enable virtualization on the CPU itself that >> goes down / comes up, not via an IPI sent from the requesting CPU. ] >> >> Signed-off-by: Ingo Molnar >> > > Since I don't normally have kvm loaded, this patch is unlikely > to help me, is that right? > > That is correct. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic.