[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Missing documentation and kexec failure with Xen 4.19-rc4 and 4.20-dev on Linux host
[I'm not subscribed to xen-devel@, so please cc me in replies.] I am experiencing issues using kexec to load Xen 4.19-rc4 and 4.20-dev. The current documentation at https://xenbits.xenproject.org/docs/4.19-testing/misc/kexec_and_kdump.txt appears to be missing crucial details on properly using kexecwith the --vmm option (which may not have exist for sometime) for loading Xen. System information: $ uname -aLinux host 6.9.10-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.9.10-1 (2024-07-19) x86_64 GNU/Linux $ kexec --version kexec-tools 2.0.29 Steps to reproduce: 1. Set variables: XEN_HYPERVISOR="/boot/xen.gz" XEN_CMD="dom0_mem=6G dom0_max_vcpus=6 dom0_vcpus_pin cpufreq=xen" 2. Attempt to load Xen 4.19-rc4: # kexec -l "$XEN_HYPERVISOR" --command-line="$XEN_CMD" Could not find a free area of memory of 0x3b6001 bytes... elf_exec_build_load_relocatable: ELF exec load failed 3. Attempt to load Xen 4.20-dev: # kexec -l "$XEN_HYPERVISOR" --command-line="$XEN_CMD" Could not find a free area of memory of 0x3f8001 bytes... elf_exec_build_load_relocatable: ELF exec load failed 4. Follow the steps in the Xen manual: # Set variables XEN_IMAGE="/boot/xen-4.19-rc.gz" DOM0_IMAGE="/boot/vmlinuz-6.9.10-amd64" DOM0_INITRD="/boot/initrd.img-6.9.10-amd64" DOM0_MEMORY="6G" DOM0_CPUS="0-5" # Prepare Xen and dom0 command line arguments XEN_ARGS="no-real-mode dom0_mem=${DOM0_MEMORY}" DOM0_ARGS="max_cpus=6 dom0_max_vcpus=6 dom0_vcpus_pin" # Load Xen and dom0 kernel kexec -l --append="${XEN_ARGS} -- ${DOM0_ARGS}" --initrd=${DOM0_INITRD} \ --vmm=${XEN_IMAGE} ${DOM0_IMAGE} Result: kexec: unrecognized option '--vmm=/boot/xen-4.19-rc.gz' I have tried compiling kexec-tools 2.0.29 from source using ./configure --with-xen, as well as using the apt version, but both result in the same "unrecognized option '--vmm'" error. Please provide guidance on the correct steps to get kexec working for loading Xen 4.19-rc4 and 4.20-dev. Additionally, I kindly request that the documentation be updated with these details to assist other users who may encounter this issue. If you need any further information to investigate this problem, please let me know. Thank you for your attention to this matter. A Kundu
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