Hello, This is to report that the soft_reset (kexec/kdump) has not been working for me since long time ago.
I have tested again with the most recent mainline xen and the most recent mainline kernel. While it works with my old xen version, it does not work with mainline xen. This is the log of my HVM guest. Waiting for domain test-vm (domid 1) to die [pid 1265] Domain 1 has shut down, reason code 5 0x5 Action for shutdown reason code 5 is soft-reset Done. Rebooting now xc: error: Failed to set d1's policy (err leaf 0xffffffff, subleaf 0xffffffff, msr 0xffffffff) (17 = File exists): Internal error libxl: error: libxl_cpuid.c:490:libxl__cpuid_legacy: Domain 1:Failed to apply CPUID policy: File exists libxl: error: libxl_create.c:1613:domcreate_rebuild_done: Domain 1:cannot (re-)build domain: -3 libxl: error: libxl_xshelp.c:201:libxl__xs_read_mandatory: xenstore read failed: `/libxl/1/type': No such file or directory libxl: warning: libxl_dom.c:51:libxl__domain_type: unable to get domain type for domid=1, assuming HVM Neither of below works. # kexec -l /boot/vmlinuz-5.17.0-rc4xen-00054-gf71077a4d84b-dirty --initrd=/boot/initrd.img-5.17.0-rc4xen-00054-gf71077a4d84b-dirty --reuse-cmdline # kexec -e or # taskset -c 0 echo c > /proc/sysrq-trigger Thank you very much! Dongli Zhang
