前缀：没有内核崩溃。
某些罕见的情况会触发客户状态、主机状态、控制状态寄存器和其他调试变量转储到内核日志。
有问题的系统正在通过 qemu/kvm 运行许多虚拟机。内核消息的出现频率低于任何正在运行的虚拟机的启动或结束频率。
什么原因引发了这种情况？
[3818340.021513] *** Guest State ***
[3818340.021543] CR0: actual=0x0000000000000030, shadow=0x0000000000000010, gh_mask=fffffffffffffff7
[3818340.021581] CR4: actual=0x0000000000002040, shadow=0x0000000000000000, gh_mask=ffffffffffffe871
[3818340.021619] CR3 = 0x00000000001aa000
[3818340.021653] RSP = 0x000000000000f6e8 RIP = 0x0000000000008000
[3818340.021680] RFLAGS=0x00000002 DR7 = 0x0000000000000400
[3818340.021707] Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000
[3818340.021736] CS: sel=0xa000, attr=0x08093, limit=0xffffffff, base=0x00000000000a0000
[3818340.021770] DS: sel=0x0000, attr=0x08093, limit=0xffffffff, base=0x0000000000000000
[3818340.021804] SS: sel=0x0000, attr=0x00093, limit=0xffffffff, base=0x0000000000000000
[3818340.021837] ES: sel=0x0000, attr=0x08093, limit=0xffffffff, base=0x0000000000000000
[3818340.021871] FS: sel=0x0000, attr=0x08093, limit=0xffffffff, base=0x0000000000000000
[3818340.021905] GS: sel=0x0000, attr=0x08093, limit=0xffffffff, base=0x0000000000000000
[3818340.021939] GDTR: limit=0x0000007f, base=0x00000000001a7000
[3818340.021973] LDTR: sel=0x0000, attr=0x10000, limit=0x000fffff, base=0x0000000000000000
[3818340.022007] IDTR: limit=0x00000000, base=0x0000000000000000
[3818340.022042] TR: sel=0x0040, attr=0x0008b, limit=0x00000077, base=0x0000000000025f50
[3818340.022076] EFER = 0x0000000000000000 PAT = 0x0007040600070406
[3818340.022104] DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000
[3818340.022137] Interruptibility = 00000008 ActivityState = 00000000
[3818340.022164] InterruptStatus = 0000
[3818340.022181] *** Host State ***
[3818340.022197] RIP = 0xffffffffc070d095 RSP = 0xffff8fe22c50bc88
[3818340.022223] CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
[3818340.022251] FSBase=00007efe6d591700 GSBase=ffff8c17ff600000 TRBase=fffffe0000003000
[3818340.022291] GDTBase=fffffe0000001000 IDTBase=fffffe0000000000
[3818340.022317] CR0=0000000080050033 CR3=0000000b1ddae002 CR4=00000000001626f0
[3818340.022347] Sysenter RSP=fffffe0000003000 CS:RIP=0010:ffffffff98801540
[3818340.022376] EFER = 0x0000000000000d01 PAT = 0x0407050600070106
[3818340.022402] *** Control State ***
[3818340.022436] PinBased=000000bf CPUBased=b5a06dfa SecondaryExec=00000fe3
[3818340.022466] EntryControls=0000d1ff ExitControls=002fefff
[3818340.022490] ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
[3818340.022521] VMEntry: intr_info=00000000 errcode=00000000 ilen=00000002
[3818340.022550] VMExit: intr_info=00000000 errcode=00000000 ilen=00000002
[3818340.022579] reason=80000021 qualification=0000000000000000
[3818340.022605] IDTVectoring: info=00000000 errcode=00000000
[3818340.022629] TSC Offset = 0xff11e9bd0803c1cc
[3818340.022649] TPR Threshold = 0x00
[3818340.022666] PostedIntrVec = 0xf2
[3818340.022683] EPT pointer = 0x0000002ee42c701e
[3818340.022703] PLE Gap=00000080 Window=00001000
[3818340.022722] Virtual processor ID = 0x0005