Re: powerpc/pic/intr.c IPL_HIGH vs IPL_NONE
Frank Wille <[email protected]>
| Newsgroups | gmane.os.netbsd.current,gmane.os.netbsd.ports.powerpc,gmane.os.netbsd.ports.bebox |
|---|---|
| Organization | Privates Internet Ostwestfalen/Lippe e.V. |
| Message-ID | <[email protected]> |
KIYOHARA Takashi wrote: > May I do revert of this change for bebox, ofppc (Openpic+8259), and > macppc (Ohare)? > > [...] >> My bebox hangs up at boot time since change v 1.23 pic/intr.c. >> >>[...] No, please don't! This is an important bug fix for ofppc (8259), e.g. for the Pegasos2. Otherwise you cannot establish interrupt handlers at different levels (e.g. IPL_SCHED and IPL_VM) on the same hardware irq! When this change causes a side effect, which makes the BeBox hang, then we have to fix the real problem instead. I have to admit that I didn't understand your problem, which has something to do with cascading a second interrupt controller? Unfortunately none of my systems has such a configuration. -- Frank Wille