PIIX4, AC32500 a DMA

Petr Soucek petr na ryston.cz
Sobota Červen 5 10:27:29 CEST 1999


No, odpovim si sam. V  ide-dma.c se pise:

/*                                                                                                                       
 * bad_dma_drives() lists the model names (from "hdparm
-i")                                                             
 * of drives which supposedly support (U)DMA but which
are                                                               
 * known to corrupt data with this interface under
Linux.                                                                

*                                                                                                                       
 * This is an empirical list. Its generated from bug reports. That
means                                                 
 * while it reflects actual problem distributions it doesn't answer
whether                                              
 * the drive or the controller, or cabling, or software, or some
combination                                             
 * thereof is the fault. If you don't happen to agree with the
kernel's                                                  
 * opinion of your drive - use hdparm to turn DMA
on.                                                                    

*/                                                                                                                      
const char *bad_dma_drives[] = {"WDC
AC11000H",                                                                          
                                "WDC
AC22100H",                                                                          
                                "WDC
AC32500H",                                                                          
                                "WDC
AC33100H",                                                                          
                                "WDC
AC31600H",                                                                          
                               
NULL};                                                                                   

Priznam se, ze me to prekvapilo, kdyz autor pripousti, ze problem mohl
byt i kdekoliv jinde nez u techto disku.

Nebo mate neko nejake podobne spatne zkusenosit s temito disky?

Zdravi

Petr Soucek


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