1 files changed, 72 insertions, 0 deletions
diff --git a/results/classifier/118/graphic/2006 b/results/classifier/118/graphic/2006
new file mode 100644
index 00000000..2b4d0346
--- /dev/null
+++ b/results/classifier/118/graphic/2006
@@ -0,0 +1,72 @@
+graphic: 0.919
+hypervisor: 0.909
+peripherals: 0.884
+permissions: 0.873
+semantic: 0.853
+socket: 0.844
+device: 0.838
+KVM: 0.833
+mistranslation: 0.831
+register: 0.831
+virtual: 0.830
+assembly: 0.828
+debug: 0.826
+architecture: 0.824
+performance: 0.820
+VMM: 0.809
+TCG: 0.789
+PID: 0.789
+risc-v: 0.779
+ppc: 0.762
+boot: 0.757
+arm: 0.750
+user-level: 0.746
+x86: 0.740
+i386: 0.740
+kernel: 0.707
+files: 0.699
+vnc: 0.688
+network: 0.635
+
+migrating failed with rcu_preempt message on proxmox 8
+Description of problem:
+when i migrate the VM from one host to another, it fails and give messages:
+
+   ```
+[  584.109502] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
+[  584.109534] rcu: 	1-...!: (0 ticks this GP) idle=1408/0/0x0 softirq=8428/8428 fqs=0 (false positive?)
+[  584.109556] 	(detected by 0, t=5252 jiffies, g=2953, q=74 ncpus=2)
+[  584.109561] Sending NMI from CPU 0 to CPUs 1:
+[  584.109587] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xb/0x10
+[  584.110564] rcu: rcu_preempt kthread timer wakeup didn't happen for 5251 jiffies! g2953 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
+[  584.110585] rcu: 	Possible timer handling issue on cpu=1 timer-softirq=8006
+[  584.110597] rcu: rcu_preempt kthread starved for 5252 jiffies! g2953 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
+[  584.110614] rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
+[  584.110645] rcu: RCU grace-period kthread stack dump:
+[  584.110658] task:rcu_preempt     state:I stack:0     pid:15    ppid:2      flags:0x00004000
+[  584.110667] Call Trace:
+[  584.110672]  <TASK>
+[  584.110688]  __schedule+0x351/0xa20
+[  584.110699]  ? rcu_gp_cleanup+0x480/0x480
+[  584.110704]  schedule+0x5d/0xe0
+[  584.110705]  schedule_timeout+0x94/0x150
+[  584.110709]  ? __bpf_trace_tick_stop+0x10/0x10
+[  584.110714]  rcu_gp_fqs_loop+0x141/0x4c0
+[  584.110717]  rcu_gp_kthread+0xd0/0x190
+[  584.110720]  kthread+0xe9/0x110
+[  584.110725]  ? kthread_complete_and_exit+0x20/0x20
+[  584.110728]  ret_from_fork+0x22/0x30
+[  584.110735]  </TASK>
+[  584.110736] rcu: Stack dump where RCU GP kthread last ran:
+[  584.110747] Sending NMI from CPU 0 to CPUs 1:
+[  584.110757] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xb/0x10
+
+   ```
+
+we can reproduce on our R630 cluster easily, but it is OK on R730 cluster and R740 cluster.
+Steps to reproduce:
+1. create and run an VM
+2. migrate the vm to other host
+3. it failed with message
+Additional information:
+i downgrade the pve-qemu-kvm from 8.1.2-4 to 8.0.2-3, same problem.