id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,field_blocks,field_dependson,field_seealso 599,Ultimate way to prevent the decrementer from underflowing,Jakub Jermář,Martin Decky,"In `kernel/arch/ppc32/src/asm.S`, there is: {{{ iret_syscall: /* Reset decrementer */ li r31, 1000 mtdec r31 }}} This is definitely wrong, especially now when the kernel can program the decrementer with a proper value to achieve its own HZ `clock()` frequency. A more systematic approach for preventing the decrementer from underflowing and missing the decrementer exception is needed.",defect,new,major,,helenos/kernel/ppc32,mainline,,decrementer,,,,