This hardware is an AMD system, codename Rome, Second generation Epyc Fix: https://github.com/torvalds/linux/commit/9d40b85bb46a99bc95dad3a07787da93b0a018e9 https://github.com/torvalds/linux/commit/0cb8410b90e78948984f35f2c4d50c2c0b7ee675
With patched kernel, the rdpru flag will be available in cpuinfo: flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 invpcid_single hw_pstate ssbd ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr rdpru arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold v_vmsave_vmload vgif umip pku ospke vaes vpclmulqdq rdpid overflow_recov succor smca bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass $ sudo ./rdpru BUILD_HEAD=16647354 timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 --no-reboot -nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -machine accel=kvm -kernel /tmp/tmp.syc17ecDpN -smp 1 -cpu max # -initrd /tmp/tmp.poLG53JqrJ enabling apic PASS: RDPRU raises #UD SUMMARY: 1 tests PASS rdpru (1 tests) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1968681 Title: rdpru in ubuntu_kvm_unit_tests failed on B-4.15 node riccioli with FAIL: RDPRU raises #UD Status in ubuntu-kernel-tests: New Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Confirmed Bug description: Issue found on B-ibm-gt-4.15.0-1116.127 This can be reproduced with B-4.15.0-175 as well. This failure is only visible on this node. Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/rdpru' BUILD_HEAD=16647354 timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 --no-reboot -nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -machine accel=kvm -kernel /tmp/tmp.qGIR5tvTw1 -smp 1 -cpu max # -initrd /tmp/tmp.8JuYRCFRUi enabling apic FAIL: RDPRU raises #UD SUMMARY: 1 tests, 1 unexpected failures FAIL rdpru (1 tests, 1 unexpected failures) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1968681/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
