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

[Peter Maydell]

The linked NetBSD bug report http://gnats.netbsd.org/54310 now has
confirmation that this crash was the result of a memory corruption bug
in QEMU which happened to manifest with the newer glib version. That bug
is fixed in QEMU master in commit ef905eff421c5a06a01 which will be in
the 5.2 release, so we can mark this as 'fix committed'.


** Changed in: qemu
       Status: New => Fix Committed

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

Title:
  qemu 4.0.0 broken by glib update

Status in QEMU:
  Fix Committed

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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