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Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/hypervisor/1879425')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/hypervisor/1879425 | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/hypervisor/1879425 b/results/classifier/deepseek-2-tmp/output/hypervisor/1879425 deleted file mode 100644 index 01ae23f1a..000000000 --- a/results/classifier/deepseek-2-tmp/output/hypervisor/1879425 +++ /dev/null @@ -1,34 +0,0 @@ - -The thread of "CPU 0 /KVM" keeping 99.9%CPU - -Hi Expert: - -The VM is hung here after (2, or 3, or 5 and the longest time is 10 hours) by qemu-kvm. -Notes: -for VM: - OS: RHEL 7.6 - CPU: 1 - MEM:4G -For qemu-kvm: - 1) version: - /usr/libexec/qemu-kvm -version - QEMU emulator version 2.10.0(qemu-kvm-ev-2.10.0-21.el7_5.4.1) - 2) once the issue is occurred, the CPU of "CPU0 /KVM" is more than 99% by com "top -p VM_pro_ID" - PID UDER PR NI RES S % CPU %MEM TIME+ COMMAND -872067 qemu 20 0 1.6g R 99.9 0.6 37:08.87 CPU 0/KVM - 3) use "pstack 493307" and below is function trace -Thread 1 (Thread 0x7f2572e73040 (LWP 872067)): -#0 0x00007f256cad8fcf in ppoll () from /lib64/libc.so.6 -#1 0x000055ff34bdf4a9 in qemu_poll_ns () -#2 0x000055ff34be02a8 in main_loop_wait () -#3 0x000055ff348bfb1a in main () - 4) use strace "strace -tt -ff -p 872067 -o cfx" and below log keep printing -21:24:02.977833 ppoll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=80, events=POLLIN}, {fd=82, events=POLLIN}, {fd=84, events=POLLIN}, {fd=115, events=POLLIN}, {fd=121, events=POLLIN}], 9, {0, 0}, NULL, 8) = 0 (Timeout) -21:24:02.977918 ppoll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=80, events=POLLIN}, {fd=82, events=POLLIN}, {fd=84, events=POLLIN}, {fd=115, events=POLLIN}, {fd=121, events=POLLIN}], 9, {0, 911447}, NULL, 8) = 0 (Timeout) -21:24:02.978945 ppoll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=80, events=POLLIN}, {fd=82, events=POLLIN}, {fd=84, events=POLLIN}, {fd=115, events=POLLIN}, {fd=121, events=POLLIN}], 9, {0, 0}, NULL, 8) = 0 (Timeout) -Therefore, I think the thread "CPU 0/KVM" is in tight loop. - 5) use reset can recover this issue. however, it will reoccurred again. -Current work around is increase one CPU for this VM, then issue is gone. - -thanks -Cliff \ No newline at end of file |