[Bug 1799919] Re: IDE HDD emulation random read/write errors

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to another 
system. For this we need to know which bugs are still valid and which could be 
closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state 
back to "New" within the next 60 days, otherwise this report will be marked as 
"Expired". Or mark it as "Fix Released" if the problem has been solved with a 
newer version of QEMU already. Thank you and sorry for the inconvenience.

** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1799919

Title:
  IDE HDD emulation random read/write errors

Status in QEMU:
  Incomplete

Bug description:
  I unfortunately can’t give more tracks other than how to reproduce the
  bug, especially that the bug occurs randomly.

  Basically, I’m trying to install DOS 6.22 on an emulated ISA machine,
  and it fails, DOS complaining about read or write error on drive C.
  Repeating the operation multiple time, I see it occurs at random
  stage, sometime even before it partitions the drive, sometime when it
  formats the drive, sometime when it copies the files from the floppy
  to the drive.

  To test it, unpack the attached archive and execute `./run` from the
  extracted directory. The archive contains three raw floppy images for
  installing DOS 6.22, and a Bourne Shell script which invokes QEmu.
  Just press enter at any installation stage, the bug may occurs at any
  stage.

  I tried with `cache=none` to be sure it’s not a cache issue, but its
  the same whatever the cache policy is.

  Version and environment: using QEmu 3.0 on Ubuntu 16.04 on a 32 bits
  DELL Inspiron 9400 (not an emulation, that’s my real laptop).

  For why I’m using QEmu for this: the installation proceeds with not
  error in VirtualBox, but I wanted to use QEmu to have a serial mouse
  which is not available with QEmu and to have finer control over the
  machine configuration ; VirtualBox although good, is more limited in
  that regard.

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