[Bug 1423528] Re: setting unsupported timeout for i6300esb watchdog causes hw reset

[Michael Tokarev]

There's nothing changed in i6300esb about this issue. I can reproduce it
exactly the same way with current qemu 5.1-tobe

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https://bugs.launchpad.net/bugs/1423528

Title:
   setting unsupported timeout for i6300esb watchdog causes hw reset

Status in QEMU:
  Incomplete

Bug description:
  Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=778291
  Version: 2.1

  systemd utilizes existing watchdog hardware and set's a 10min timer on reboot.
  The i6300esb under qemu doesn't like such a timeout, and immediately resets 
the hardware:

  The last message one gets is
  [    9.402243] i6300esb: Unexpected close, not stopping watchdog!

  
  The linked bug report contains information how this bug can easily be 
reproduced.
  With any image using a recent enough systemd as PID 1 you should be able to 
reproduce it by running

  qemu-system-x86_64 -curses -enable-kvm -device i6300esb -watchdog-
  action reset -hda <image with systemd>

  
  I'm uncertain if this is a qemu or kernel/driver bug. If the latter, please 
re-assign the bug as necessary.

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