On 12/02/13 at 10:30am, Vivek Goyal wrote: > On Thu, Nov 28, 2013 at 07:28:16PM +0800, Baoquan He wrote: > > [..] > > > +int crash_copy_backup_region(struct kimage *image) > > > +{ > > > > Why need this func be called, backup region has been added into crash > > segment by kexec_add_buffer, and then buffer copy is done in > > kimage_load_crash_segment. I think this copy is handled twice. Please > > correct me if I am wrong. > > > > Hi Bao, > > kexec_add_buffer() will copy the backup region but it will happen when > crash kernel is loaded. We want snapshot of backup region at the time > of crash and that's why this second call to copy backup region and it > is executed after the crash. Did we do this before? And will this region be changed after 1st kernel boot > > Thanks > Vivek > > _______________________________________________ > kexec mailing list > kexec at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kexec