blob: 097f74db59505111f5b4f621ee4d98a8fe2fe321 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
when guest unexpect shutdown,can't enter system,the terminal has a black screen
Description of problem:
Steps to reproduce:
1.guest unexpect shutdown
2.when start again,cpu usage is high and can't enter the guest system
3.restart guest can recovery
**libvirt print：**
`2022-08-11 14:39:58.080+0000: 1942: warning : qemuDomainObjTaint:6079 : Domain id=117 name='GDT99d2578e-f06e-4fbe-88dd-7d9dd56fd02d' uuid=99d2578e-f06e-4fbe-88dd-7d9dd56fd02d is tainted: high-privileges
2022-08-11 14:39:58.080+0000: 1942: warning : qemuDomainObjTaint:6079 : Domain id=117 name='GDT99d2578e-f06e-4fbe-88dd-7d9dd56fd02d' uuid=99d2578e-f06e-4fbe-88dd-7d9dd56fd02d is tainted: custom-argv
2022-08-11 14:40:28.792+0000: 741037: warning : qemuDomainObjBeginJobInternal:946 : Cannot start job (modify, none, none) for domain GDT99d2578e-f06e-4fbe-88dd-7d9dd56fd02d; current job is (none, none, migration in) owned by (0 <null>, 0 <null>, 0 remoteDispatchDomainMigratePrepare3Params (flags=0x203)) for (0s, 0s, 30s)
2022-08-11 14:40:28.792+0000: 741037: error : qemuDomainObjBeginJobInternal:968 : Timed out during operation: cannot acquire state change lock (held by monitor=remoteDispatchDomainMigratePrepare3Params)
`
**user perf to analyse:**
\#top -d 3 -Hp 1311519
\#perf record -a -g -p 1311519 sleep 20
\#report -n --header --stdio
**query kvm stat:**
\# perf stat -e 'kvm:*' -a -p 1311519 sleep 20
kvm vmexit stat:
\#perf kvm stat record -a -p 1311519 sleep 10
\#perf kvm stat report --event=vmexit
|