Cc Vitaly Kuznetsov, who is the expert of kdump on xen guest issues, but I'm not sure if he ever tried kexec reboot.. On 07/21/17 at 01:27pm, Corey Ashford wrote: > The platform is a PVHVM guest of CentOS 7 (x86_64) running on a XenServer > (version 6.5 and 7.2 both have the same behavior). > > This is the kexec-tools rpm build we are using: > > kexec-tools-2.0.7-50.el7.x86_64 > > If we run these two commands: > > kexec --load /boot/vmlinux-<current kernel> --initrd=/boot/initramfs > <corresponding initramfs for current kernel> --reuse-cmdline > > kexec --exec > > The first line succeeds without errors, but the second one causes the VM to > immediately shutdown, and there's no further output on the console. We've > tried adding a number of different kernel command line options, such as: > debug=1 early_printk=xen loglevel=9 > > We've also tried blacklisting the PV drivers. > > This sequence works fine on KVM, VMware, and also on bare-metal machines. > > Is this expected behavior on Xen with CentOS 7.x? We have scoured the > kexec-tools mailing list, googled extensively, and haven't come up with much > help. We've also tried changing various kernel config parameters related to > Xen, but the behavior doesn't change. > > Any info, debugging advice, suggestions would be appreciated. > > Thanks for your consideration, > > - Corey > > Corey Ashford > IBM Embedded Linux, software engineer > cjashfor at us.ibm.com > > > _______________________________________________ > kexec mailing list > kexec at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kexec
