Messages in this thread |  | | From | Andrzej Krzysztofowicz <> | Subject | Re: Updated Linux 2.4 Status/TODO List (from the ALS show) | Date | Thu, 12 Oct 2000 15:13:44 +0200 (MET DST) |
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"tytso@mit.edu wrote:" > * Use PCI DMA by default in IDE is unsafe (must not do so on via > VPx, x < 3) (Vojtech Pavlik --- requires chipset tuning to be > enabled according to Andre Hedrick --- we need to turn this on by > default, if it is safe -- TYT)
Using PCI DMA is also generally broken for modular IDE. Unloading/reloading the ide-probe-mod module still causes an oops when accessing disks (NULL pointer dereference / Aiee, killing the interrupt handler / Panic) and you are left with a dead system :(
I observe it with alim15xx, but probably problem is more general and appears somewhere in IDE initialization by ide-probe-mod (IMHO).
I observe similar (but not exactly the same) problem in 2.2.17+ide.
I think that getting rid of the ide-probe-mod module (and linking it into ide-mod) should solve the problem. What do you think of it Andre ?
Andrzej -- ======================================================================= Andrzej M. Krzysztofowicz ankry@mif.pg.gda.pl phone (48)(58) 347 14 61 Faculty of Applied Phys. & Math., Technical University of Gdansk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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