diff options
Diffstat (limited to 'results/classifier/105/other/1900241')
| -rw-r--r-- | results/classifier/105/other/1900241 | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/results/classifier/105/other/1900241 b/results/classifier/105/other/1900241 new file mode 100644 index 00000000..8d723680 --- /dev/null +++ b/results/classifier/105/other/1900241 @@ -0,0 +1,250 @@ +mistranslation: 0.922 +other: 0.920 +assembly: 0.900 +semantic: 0.879 +graphic: 0.871 +instruction: 0.865 +boot: 0.861 +socket: 0.857 +device: 0.845 +vnc: 0.845 +network: 0.829 +KVM: 0.810 + +[regression][powerpc] some vcpus are found offline inside guest with different vsmt setting from qemu-cmdline and breaks subsequent vcpu hotplug operation (xive) + +Env: +Host: Power9 HW ppc64le + +# lscpu +Architecture: ppc64le +Byte Order: Little Endian +CPU(s): 128 +On-line CPU(s) list: 24-31,40-159 +Thread(s) per core: 4 +Core(s) per socket: 16 +Socket(s): 2 +NUMA node(s): 2 +Model: 2.3 (pvr 004e 1203) +Model name: POWER9, altivec supported +Frequency boost: enabled +CPU max MHz: 3800.0000 +CPU min MHz: 2300.0000 +L1d cache: 1 MiB +L1i cache: 1 MiB +L2 cache: 8 MiB +L3 cache: 160 MiB +NUMA node0 CPU(s): 24-31,40-79 +NUMA node8 CPU(s): 80-159 +Vulnerability Itlb multihit: Not affected +Vulnerability L1tf: Mitigation; RFI Flush, L1D private per thread +Vulnerability Mds: Not affected +Vulnerability Meltdown: Mitigation; RFI Flush, L1D private per thread +Vulnerability Spec store bypass: Mitigation; Kernel entry/exit barrier (eieio) +Vulnerability Spectre v1: Mitigation; __user pointer sanitization, ori31 speculation barrier enabled +Vulnerability Spectre v2: Mitigation; Software count cache flush (hardware accelerated), Software link stack flush +Vulnerability Srbds: Not affected +Vulnerability Tsx async abort: Not affected + + + +Host Kernel: 5.9.0-0.rc8.28.fc34.ppc64le (Fedora rawhide) +Guest Kernel: Fedora33(5.8.6-301.fc33.ppc64le) + +Qemu: e12ce85b2c79d83a340953291912875c30b3af06 (qemu/master) + + +Steps to reproduce: + +Boot below kvm guest: (-M pseries,vsmt=2 -smp 8,cores=8,threads=1) + + /home/sath/qemu/build/qemu-system-ppc64 -name vm1 -M pseries,vsmt=2 -accel kvm -m 4096 -smp 8,cores=8,threads=1 -nographic -nodefaults -serial mon:stdio -vga none -nographic -device virtio-scsi-pci -drive file=/home/sath/tests/data/avocado-vt/images/fdevel-ppc64le.qcow2,if=none,id=hd0,format=qcow2,cache=none -device scsi-hd,drive=hd0 + + +lscpu inside guest: +Actual: +[root@atest-guest ~]# lscpu +Architecture: ppc64le +Byte Order: Little Endian +CPU(s): 8 +On-line CPU(s) list: 0,2,4,6 +Off-line CPU(s) list: 1,3,5,7 --------------------------NOK +Thread(s) per core: 1 +Core(s) per socket: 4 +Socket(s): 1 +NUMA node(s): 1 +Model: 2.3 (pvr 004e 1203) +Model name: POWER9 (architected), altivec supported +Hypervisor vendor: KVM +Virtualization type: para +L1d cache: 128 KiB +L1i cache: 128 KiB +NUMA node0 CPU(s): 0,2,4,6 +Vulnerability Itlb multihit: Not affected +Vulnerability L1tf: Mitigation; RFI Flush, L1D private per thread +Vulnerability Mds: Not affected +Vulnerability Meltdown: Mitigation; RFI Flush, L1D private per thread +Vulnerability Spec store bypass: Mitigation; Kernel entry/exit barrier (eieio) +Vulnerability Spectre v1: Mitigation; __user pointer sanitization, ori31 + speculation barrier enabled +Vulnerability Spectre v2: Mitigation; Software count cache flush (hardwar + e accelerated), Software link stack flush +Vulnerability Srbds: Not affected +Vulnerability Tsx async abort: Not affected + + +Expected: + +[root@atest-guest ~]# lscpu +Architecture: ppc64le +Byte Order: Little Endian +CPU(s): 8 +On-line CPU(s) list: 0-7 +Thread(s) per core: 1 +Core(s) per socket: 8 +Socket(s): 1 +NUMA node(s): 1 +Model: 2.3 (pvr 004e 1203) +Model name: POWER9 (architected), altivec supported +Hypervisor vendor: KVM +Virtualization type: para +L1d cache: 256 KiB +L1i cache: 256 KiB +NUMA node0 CPU(s): 0-7 +Vulnerability Itlb multihit: Not affected +Vulnerability L1tf: Mitigation; RFI Flush, L1D private per thread +Vulnerability Mds: Not affected +Vulnerability Meltdown: Mitigation; RFI Flush, L1D private per thread +Vulnerability Spec store bypass: Mitigation; Kernel entry/exit barrier (eieio) +Vulnerability Spectre v1: Mitigation; __user pointer sanitization, ori31 + speculation barrier enabled +Vulnerability Spectre v2: Mitigation; Software count cache flush (hardwar + e accelerated), Software link stack flush +Vulnerability Srbds: Not affected +Vulnerability Tsx async abort: Not affected + + + +There by further vcpuhotplug operation fails... + +Did a git bisect and the bad commit is + +acbdb9956fe93f4669141f103cb543d3025775db is the first bad commit +commit acbdb9956fe93f4669141f103cb543d3025775db +Author: Cédric Le Goater <email address hidden> +Date: Thu Aug 20 15:45:46 2020 +0200 + + spapr/xive: Allocate IPIs independently from the other sources + + The vCPU IPIs are now allocated in kvmppc_xive_cpu_connect() when the + vCPU connects to the KVM device and not when all the sources are reset + in kvmppc_xive_source_reset() + + This requires extra care for hotplug vCPUs and VM restore. + + Signed-off-by: Cédric Le Goater <email address hidden> + Message-Id: <email address hidden> + Signed-off-by: David Gibson <email address hidden> + + hw/intc/spapr_xive_kvm.c | 47 ++++++++++++++++++++++++++++++++++++++++++----- + 1 file changed, 42 insertions(+), 5 deletions(-) + + + + +# git bisect log +git bisect start +# good: [d0ed6a69d399ae193959225cdeaa9382746c91cc] Update version for v5.1.0 release +git bisect good d0ed6a69d399ae193959225cdeaa9382746c91cc +# bad: [7daf8f8d011cdd5d3e86930ed2bde969425c790c] Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging +git bisect bad 7daf8f8d011cdd5d3e86930ed2bde969425c790c +# skip: [7595a65818ea9b49c36650a8c217a1ef9bd6e62a] hw/riscv: Sort the Kconfig options in alphabetical order +git bisect skip 7595a65818ea9b49c36650a8c217a1ef9bd6e62a +# skip: [3b65b742543bc6c2ad35e3b42401a26b48a87f26] target/hppa: Fix boot with old Linux installation CDs +git bisect skip 3b65b742543bc6c2ad35e3b42401a26b48a87f26 +# bad: [f4ef8c9cc10b3bee829b9775879d4ff9f77c2442] Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging +git bisect bad f4ef8c9cc10b3bee829b9775879d4ff9f77c2442 +# good: [4ee40a6b98c02b72fc5dd262df9d3ac8680d767b] hw/usb: Add U2F device check to passthru mode +git bisect good 4ee40a6b98c02b72fc5dd262df9d3ac8680d767b +# skip: [fe4b0b5bfa96c38ad1cad0689a86cca9f307e353] tcg: Implement 256-bit dup for tcg_gen_gvec_dup_mem +git bisect skip fe4b0b5bfa96c38ad1cad0689a86cca9f307e353 +# skip: [287b1defeb44398d02669d97ebdc347d650f274d] target/microblaze: Cache mem_index in DisasContext +git bisect skip 287b1defeb44398d02669d97ebdc347d650f274d +# skip: [7a1fb2ef40df508e90eb756a80d67e6435246cae] block/nvme: Extract nvme_poll_queue() +git bisect skip 7a1fb2ef40df508e90eb756a80d67e6435246cae +# good: [536e340f464d7c2ef55cca47c7535d9409bf03c7] target/microblaze: Convert msrclr, msrset to decodetree +git bisect good 536e340f464d7c2ef55cca47c7535d9409bf03c7 +# good: [227de21ed0759e275a469394af72c999d0134bb5] Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20200903' into staging +git bisect good 227de21ed0759e275a469394af72c999d0134bb5 +# bad: [b95ba83fc56ebfc4b6869f21db0c757c0c191104] Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-5.2-20200908' into staging +git bisect bad b95ba83fc56ebfc4b6869f21db0c757c0c191104 +# good: [789035f1239054331b335801a06bdbef026f02e1] oss-fuzz: fix rpath +git bisect good 789035f1239054331b335801a06bdbef026f02e1 +# good: [00942071a0eabeb3ebc3bd594296859587f8f3c8] Merge remote-tracking branch 'remotes/rth/tags/pull-mb-20200907-2' into staging +git bisect good 00942071a0eabeb3ebc3bd594296859587f8f3c8 +# bad: [554c2169e9251ca2829ab968bd9ba5641a5abe1d] ppc/spapr: Use start-powered-off CPUState property +git bisect bad 554c2169e9251ca2829ab968bd9ba5641a5abe1d +# good: [235d3b116213828f4206e2e4b199a32bffc96f35] spapr/xive: Modify kvm_cpu_is_enabled() interface +git bisect good 235d3b116213828f4206e2e4b199a32bffc96f35 +# bad: [90d282d0858cf5a38f3e8a7e201aeab2a0ccbe88] ppc/spapr_nvdimm: use g_autofree in spapr_nvdimm_validate_opts() +git bisect bad 90d282d0858cf5a38f3e8a7e201aeab2a0ccbe88 +# bad: [acbdb9956fe93f4669141f103cb543d3025775db] spapr/xive: Allocate IPIs independently from the other sources +git bisect bad acbdb9956fe93f4669141f103cb543d3025775db +# good: [fa94447a2cd6643609d5822d5b5f739dc8ad8a8c] spapr/xive: Use kvmppc_xive_source_reset() in post_load +git bisect good fa94447a2cd6643609d5822d5b5f739dc8ad8a8c +# first bad commit: [acbdb9956fe93f4669141f103cb543d3025775db] spapr/xive: Allocate IPIs independently from the other sources + + +Regards, +-Satheesh + +Fixed by reverting the series that caused the regression. + +https://git.qemu.org/?p=qemu.git;a=commit;h=6d24795ee7e3199d199d3c415312c93382ad1807 + +The optimization needs to be reworked later. + + + +Tested with latest upstream and found the issue is fixed, + + +# git log -1 +commit dd3d2340c4076d1735cd0f7cb61f4d8622b9562d (HEAD -> master, tag: v5.2.0-rc3, origin/master, origin/HEAD) +Author: Peter Maydell <email address hidden> +Date: Tue Nov 24 22:13:30 2020 +0000 + + Update version for v5.2.0-rc3 release + + Signed-off-by: Peter Maydell <email address hidden> + + +/home/sath/qemu/build/qemu-system-ppc64 -name vm1 -M pseries,vsmt=2 -accel kvm -m 4096 -smp 8,cores=8,threads=1 -nographic -nodefaults -serial mon:stdio -vga none -nographic -device virtio-scsi-pci -drive file=/home/sath/tests/data/avocado-vt/images/fdevel-ppc64le.qcow2,if=none,id=hd0,format=qcow2,cache=none -device scsi-hd,drive=hd0 + + +Fedora 33 (Thirty Three Prerelease) +Kernel 5.8.13-300.fc33.ppc64le on an ppc64le (hvc0) + +atest-guest login: root +Password: +Login incorrect + +atest-guest login: root +Password: +Last login: Wed Nov 18 09:03:24 on hvc0 +[root@atest-guest ~]# lscpu +Architecture: ppc64le +Byte Order: Little Endian +CPU(s): 8 +On-line CPU(s) list: 0-7 +Thread(s) per core: 1 +Core(s) per socket: 8 +Socket(s): 1 +NUMA node(s): 1 + + +Regards, +-Satheesh + +Released with QEMU v5.2.0. + |