On Fri, Jun 13, 2008 at 09:04:00AM +0800, Huang, Ying wrote: > On Thu, 2008-06-12 at 15:20 -0400, Vivek Goyal wrote: > > On Tue, Jun 10, 2008 at 03:15:04PM +0800, Huang, Ying wrote: > > > This patch provides an enhancement to kexec/kdump. It implements > > > the following features: > > > > > > - Backup/restore memory used by the original kernel before/after > > > kexec. > > > > > > - Save/restore CPU state before/after kexec. > > > > > > The features of this patch can be used as a general method to call > > > program in physical mode (paging turning off). This can be used to > > > call BIOS code under Linux. > > > > > > > > > > Hi Huang, > > > > I was testing these patches and I get following error on my machine. > > > > Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done. > > Suspending console(s) (use no_console_suspend to debug) > > PM: Device i8042 failed to freeze: error -22 > > Restarting tasks ... done. > > > > Any idea why keyboard controller would not freeze? > > Which kernel version do you use? > 2.6.26-rc5-mm1. > Does original hibernation work? It can be setup easily. Just add > following parameters to kernel command line: > Ok, I found that in my config CONFIG_HIBERNATION was not enabled. After enabling CONFIG_HIBERNATION, both suspend to disk and kjump started working. Does that mean there is some dependency on code under CONFIG_HIBERNATION. If yes, I think this dependency should be resolved during compile time. May be addtional config option (CONFIG_KEXEC_JUMP), which also selects the CONFIG_HIBERNATION automatically etc... Thanks Vivek _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
