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Ticket Resolution Summary Owner Reporter
#17221 fixed mount.vboxsf: mounting failed with the error: No such device TheITGuy
Description

Trying to mount a shared folder on Centos & RHEL guests:

# mount -t vboxsf sharedfolder /hostfiles/ /sbin/mount.vboxsf: mounting failed with the error: No such device

but works like a dream on Solaris & Oracle Linux virtual boxes.

Please note the the virtual guest addition is installed on all boxes and on Centos/RHEL by running: VBoxLinuxAdditions.run

This is evident by the fact that the mount command recognizes the vboxsf file system type. Prior to installation I tested the command and the error was different. Then the error was about FS type being invalid.

Host is a Windows 7 Machine and Virtual box is 5.1.16.

Centos is:

# uname -a Linux centos 3.10.0-693.el7.x86_64 #1 SMP Tue Aug 22 21:09:27 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

# cat /etc/system-release CentOS Linux release 7.4.1708 (Core)

#17220 duplicate Download.Virtualbox.org: Missing HTTPS qa25
Description

The main website uses HTTPS, but the most important part of the website (downloading the binary/source) is over HTTP. This leaves downloaders vulnerable to MITM attacks and should be resolved.

#17219 fixed VirtualBox 5.2.0: Interrupt storm on emulated HDA controller (FreeBSD) -> fixed in 5.2.10 pentagonik wonko1953
Description

Scenario:

Result:

  • The client boots o.k.
  • The client kernel reports an excessive interrupt rate for the HDA audio controller (1k..50k/sec depending on client load) even with no audio playing
  • Console output:
    interrupt storm detected on "irq21:"; throttling interrupt source
    interrupt storm detected on "irq21:"; throttling interrupt source
    interrupt storm detected on "irq21:"; throttling interrupt source
    
  • Running systat -vm 1 :
          users    Load  0.24  0.20  0.09                  Oct 27 16:12
       Mem usage:   7%Phy  4%Kmem
    Mem: KB    REAL            VIRTUAL                      VN PAGER   SWAP PAGER
            Tot   Share      Tot    Share    Free           in   out     in   out
    Act  162036   14172  1293824    16504 2855288  count
    All  162644   14664  1303256    25644          pages
    Proc:                                                            Interrupts
      r   p   d   s   w   Csw  Trp  Sys  Int  Sof  Flt        ioflt  3318 total
                 96       404   13  544 2973   30             cow         atkbd0 1
                                                              zfod        ata0 14
     0.2%Sys   2.6%Intr  0.0%User  0.0%Nice 97.2%Idle         ozfod     2 ata1 15
    |    |    |    |    |    |    |    |    |    |           %ozfod    17 le0 19
    +                                                         daefr       vboxguest0
                                             1 dtbuf          prcfr  2953 hdac0 21
    Namei     Name-cache   Dir-cache     42858 desvn          totfr   228 cpu0:timer
       Calls    hits   %    hits   %      3572 numvn          react   114 cpu3:timer
           3       3 100                  1740 frevn          pdwak     1 cpu2:timer
                                                           40 pdpgs     3 cpu1:timer
    Disks   md0  ada0   cd0 pass0 pass1                       intrn
    KB/t   0.00  0.00  0.00  0.00  0.01                 64464 wire
    tps       0     0     0     0     1                 96496 act
    MB/s   0.00  0.00  0.00  0.00  0.00                 64636 inact
    %busy     0     0     0     0     0                       laund
                                                      2855288 free
    

Expected result:

  • No HDA interrupts as long as no audio is playing
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