[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/996798
Title:
Incorrect order of task switching
Status in QEMU:
Expired
Bug description:
In Intel specifications
(http://download.intel.com/design/processor/manuals/253668.pdf 7.3),
we can see:
8. Saves the state of the current (old) task in the current task’s
TSS.
…
12. The TSS state is loaded into the processor
But, in QEMU code
(https://raw.github.com/qemu/QEMU/v1.0/target-i386/op_helper.c :375),
the order is reversed: TSS registers & segments loads BEFORE save old
task state.
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