Re: Waiting for bufdaemon

From: Yasuhiro Kimura <yasu_at_utahime.org>
Subject: Re: Waiting for bufdaemon
Date: Fri, 15 Jan 2021 20:10:30 +0900 (JST)

> I have been experiencing same problem with my 13-CURRENT amd64
> VirtualBox VM for about a month. The conditions that the problem
> happens are unclear and all what I can say is
> 
> * It happens only after I login in the VM and do something for a
>   while. If I boot the VM and shut it down immediately, it never
>   happens.
> * When the problem happens, one or more unkillable processes seem to
>   be left.

CPU of my host is not AMD but Intel. According to the
/var/run/dmesg.boot of VM, information of CPU is as following.

CPU: Intel(R) Core(TM) i7-9700 CPU _at_ 3.00GHz (3000.09-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x906ed  Family=0x6  Model=0x9e  Stepping=13
  Features=0x1783fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE,SSE2,HTT>
  Features2=0x5eda2203<SSE3,PCLMULQDQ,SSSE3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,AESNI,XSAVE,OSXSAVE,AVX,RDRAND>
  AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM>
  AMD Features2=0x121<LAHF,ABM,Prefetch>
  Structured Extended Features=0x842421<FSGSBASE,AVX2,INVPCID,NFPUSG,RDSEED,CLFLUSHOPT>
  Structured Extended Features3=0x30000400<MD_CLEAR,L1DFL,ARCH_CAP>
  IA32_ARCH_CAPS=0x29<RDCL_NO,SKIP_L1DFL_VME,MDS_NO>
  TSC: P-state invariant

Just FYI.

---
Yasuhiro Kimura