Marcelo, this is backport of Matt Porter's patch for Book-E decrementer handling in timer_interrupt.
The fix has been in 2.6 from August but never made it to 2.4, and I re-discovered this fix last week :) Original Matt's post to linuxppc-dev with explanation can be found at: http://ozlabs.org/pipermail/linuxppc-dev/2004-August/017458.html Signed-off-by: Eugene Surovegin <ebs at ebshome.net> ===== arch/ppc/kernel/time.c 1.16 vs edited ===== --- 1.16/arch/ppc/kernel/time.c 2003-07-03 09:56:34 -07:00 +++ edited/arch/ppc/kernel/time.c 2005-04-26 11:37:58 -07:00 @@ -150,7 +150,7 @@ hardirq_enter(cpu); - while ((next_dec = tb_ticks_per_jiffy - tb_delta(&jiffy_stamp)) < 0) { + while ((next_dec = tb_ticks_per_jiffy - tb_delta(&jiffy_stamp)) <= 0) { jiffy_stamp += tb_ticks_per_jiffy; if (!user_mode(regs)) ppc_do_profile(instruction_pointer(regs));
