[Qemu-devel] [Bug 1838658] Re: qemu 4.0.0 broken by glib update

[Daniel Berrange]

Fedora 30 has been shipping glib2 2.60.0 through to 2.60.5 and QEMU in
general has been working normally AFAICT.

>From the netbsd bug report it looks like the reproducer was demoed using
the sparc emulator - is that the only QEMU arch that is affected ?

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https://bugs.launchpad.net/bugs/1838658

Title:
  qemu 4.0.0 broken by glib update

Status in QEMU:
  New

Bug description:
  In brief, an install CD will successfully boot with qemu 4.0.0 built with 
glib 2.58.3, but freeze during boot with qemu 4.0.0 built with glib 2.60.0. I 
tracked it down to glib's GHashTable improvements. qemu is happy with a glib 
built from
  ```
   git checkout -f 2.60.4
   git revert --no-edit 86c6f7e2b..3bed8a13b
   git revert --no-edit 75f8ec1df9b48b0c3a13a9125f2c7d7c5adf5159
   git revert --no-edit 603fb5958..d3074a748
   git revert --no-edit 0b45ddc55..0600dd322
  ```
  When the GHashTable improvements were committed, there was already a 
preemptive note about any breakage being due to using private implementation 
details, hence mentioning it here rather than with glib.

  For the full saga, see: http://gnats.netbsd.org/54310

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