nasty surprise from today updates

[Michal Jaegermann <michal harddata com>]

Today attempts to run 'yum update' on a rawhide installation
consistently exit with memory alloc failure.  A run of yum with
'-d 5' shows:
.....
Adding Package xorg-x11-server-common-1.4.99.906-1.fc10.x86_64 in mode u
Adding Package 1:busybox-anaconda-1.10.3-2.fc10.x86_64 in mode u
Adding Package python-slip-dbus-0.1.7-1.fc10.noarch in mode u

followed by a long pause and after that:

memory alloc (22591320 bytes) returned NULL.

That on x86_64 with 388M of free memory, not counting of what
is buffers/cache, and barely touched swap.  Clearly none of
updates were applied as a result.

Any idea what can be a culprit?  'yum' which was updated yesterday
to yum-3.2.17-2.fc10, or recent changes in 'rpm' and/or 'glibc'?
Nothing was wrong with updates yesterday.

Updating first packages with names in a pattern 'k*', which took
care about kernel related things and close to one third of an
overall updates size, followed by the rest (58 Megs in 38 packages)
did work.

   Michal