Messages in this thread | | | From | Blaisorblade <> | Subject | Re: [patch 4/8] irq code: Add coherence test for PREEMPT_ACTIVE | Date | Fri, 27 May 2005 03:06:09 +0200 |
| |
On Friday 27 May 2005 02:38, blaisorblade@yahoo.it wrote: > After porting this fixlet to UML: > > http://linux.bkbits.net:8080/linux-2.5/cset@41791ab52lfMuF2i3V-eTIGRBbDYKQ > > , I've also added a warning which should refuse compilation with insane > values for PREEMPT_ACTIVE... maybe we should simply move PREEMPT_ACTIVE out > of architectures using GENERIC_IRQS. Ok, a grep shows that possible culprits (i.e. giving success to grep GENERIC_HARDIRQS arch/*/Kconfig, and using 0x4000000 as PREEMPT_ACTIVE, as given by grep PREEMPT_ACTIVE include/asm-*/thread_info.h) are (at a first glance): frv, sh, sh64.
After a bit of checking, I also verified if they had overriden the value of HARDIRQ_BITS. Which they haven't (it seems it's defined exactly where CONFIG_HARDIRQS is not used, i.e. nobody is using the ability to override it currently).
This was not a very deep investigation, however, so feel free to verify this better. -- Paolo Giarrusso, aka Blaisorblade Skype user "PaoloGiarrusso" Linux registered user n. 292729 http://www.user-mode-linux.org/~blaisorblade
___________________________________ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |