On 15/12/06 17:27, Hollis Blanchard [EMAIL PROTECTED] wrote:
We recently uncovered a bug on PowerPC where if a timer tick arrives
just inside schedule() while interrupts are still enabled, the
decrementer is never reprogrammed to that appropriate value. This is
because once inside schedule(),
On Fri, 2006-12-15 at 17:36 +, Keir Fraser wrote:
On 15/12/06 17:27, Hollis Blanchard [EMAIL PROTECTED] wrote:
We recently uncovered a bug on PowerPC where if a timer tick arrives
just inside schedule() while interrupts are still enabled, the
decrementer is never reprogrammed to that
On 15/12/06 20:41, Hollis Blanchard [EMAIL PROTECTED] wrote:
It's an issue with any architecture with a large number of registers
which aren't automatically saved by hardware (and a C ABI that makes
some of them non-volatile).
x86 has a small number of registers. ia64 automatically saves
On Fri, 2006-12-15 at 21:39 +, Keir Fraser wrote:
On 15/12/06 20:41, Hollis Blanchard [EMAIL PROTECTED] wrote:
It's an issue with any architecture with a large number of registers
which aren't automatically saved by hardware (and a C ABI that makes
some of them non-volatile).
x86
