Messages in this thread | | | From | Bartlomiej Zolnierkiewicz <> | Subject | Re: Changes to ide-probe.c in 2.6.9-rc2 causing improper detection | Date | Tue, 14 Sep 2004 13:59:27 +0200 |
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always cc: linux-ide@vger.kernel.org on ATA stuff
On Tuesday 14 September 2004 09:03, C.Y.M. wrote: > > > > > On Mon, Sep 13 2004, C.Y.M. wrote: > > > After installing 2.6.9-rc2 on my PC today (x86 VIA Chipset > > motherboard and > > > Athlon XP CPU), The IDE detection during boot in probing > > for ide2-5 and > > > displaying errors, and the hard drives that it does find > > are telling me that > > > "hda: cache flushes not supported" (when they are displayed > > as supported > > > when using 2.6.9-rc1. > > > > Your drive doesn't advertise FLUSH_CACHE support, the model > > for when we > > use these commands changed between -rc1 and -rc2. This > > essentially means > > that you have to turn off write back caching for safe operations on a > > journalled drive. > > > > Alan, I bet there are a lot of these. Maybe we should consider letting > > the user manually flag support for FLUSH_CACHE, at least it > > is in their > > hands then. > > > > -- > > Jens Axboe > > > > Thanks for the explanation. I can understand that some of the older drives > will not support FLUSH_CACHE which is acceptable. On another note, since > most computers only have IDE0 and IDE1 slots, is there a way to prevent the > probe from returning errors on boot when looking for IDE2 to IDE5? Perhaps
errros? these are innocent KERN_DEBUG messages
> a kernel configuration option asking how many IDE's are expected to probe > (defaulting to two)?
grep drivers/ide/Kconfig IDE_GENERIC
> Best Regards, > C.Y.M. - 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/
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