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Ticket Resolution Summary Owner Reporter
#17146 fixed Drag and drop from Windows Host cannot handle UNC-Folders -> fixed in 5.2.20 pentagonik Severin Meyer
Description

Dragging a file from an unc-path from windows host to guest will fail.

The following unc-path:
server\share\resource\text.txt will be translated to: C:\Users\[username]\server\share\resource\text.txt

So the drag operation will fail:

Die Drag-und-Drop-Operation vom Host zum Gast ist fehlgeschlagen. Drag and drop error from host (VERR_PATH_NOT_FOUND). Fehlercode:VBOX_E_IPRT_ERROR (0x80BB0005) Komponente:GuestWrap Interface:IGuest {13a11514-402e-022e-6180-c3944de3f9c8}

When dragging from a drive letter eg R:\resource\text.txt, the drag works as expected. Unfortunately, after trying to drag from an unc-path, the guest and sometimes also the host cannot drag any files anymore and has to be restartet.

This becomes very uncomfortable, when system folders are redirected to an unc-path. So when e.g. the desktop is redirected to:
server\redirected\[username]\Desktop Every drag operation form the desktop will result at least in restarting the guest.

I have observed the problem with 5.1.20, 5.1.26 and 5.1.28 on Windows 10 Pro 1703 as host

#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
#17241 invalid no video or audio reproduction pentagonik 3rm4c
Description

After upgrade from virtualbox version 5.1.26 to 5.1.28 on the guest os (debian 9 x64) the video/audio reproduction with mplayer, vlc, firefox htlm 5 ecc no video reproduction.

After several attempts find the problem is located on the audio settings, in fact on the oracle site change logs read: VirtualBox 5.1.28 (released 2017-09-13) [...] Audio: fixed accidental crashes when using the AC'97 sound emulation (bug #16959) Audio: fixed crash when default input or output devices have changed (bugs #16968, #16969, #17004) Audio: fixed recording when using the ALSA backend Audio: fixed handle leak when using the OSS backend [...] in fact if change the audio guest controller from "ICH AC47" to "intel hd audio" or "sound blaster 16" the video reproduction is ok but no audio output. Same problem with original virtualbox release by oracle.

The host system: OS: debian 9 x64 with kde and without pulseaudio (virtualbox hostaudio ALSA Audio Driver) CPU: i7_920 with all virtualized option active VIDEO: Radeon HD 5850 (audio hdmi disabled) AUDIO: Creative Labs EMU20k2

GUEST OS: debian 9 x64 with lxde and without pulseaudio

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