I'm experiencing a problem booting 2.6.6 on a via c3 motherboard.
A very similar .config works fine with 2.6.5, I've attached a
diff of a working 2.6.5 .config and a broken .2.6.6 .config; along
with the full (non working) 2.6.6 config.

Under 2.6.6, when only the cdrom is connected on the second channel
(/dev/hdd) boot seems normal, until a delay after "ATAPI reset", then
boot continues normally.

When /dev/hdc is connected, "lost interrupt" errors prevent 2.6.6 from
booting, but 2.6.5 has no problem.

I've tried toggling the ide interrupt sharing option, doesn't seem to
have effect on the problem. Below is hdparm output, hdc is identical to
hda.


# hdparm -i /dev/hdd

/dev/hdd:

 Model=SONY DVD RW DW-U14A, FwRev=1.0d, SerialNo=FA674550
 Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=0kB, MaxMultSect=0
 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
 IORDY=on/off, tPIO={min:180,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 *udma2 
 AdvancedPM=no
 Drive conforms to: device does not report version: 



# hdparm -i /dev/hda

/dev/hda:

 Model=Maxtor 6E040L0, FwRev=NAR61EA0, SerialNo=E1PJRQ0E
 Config={ Fixed }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=off
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=80293248
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
 AdvancedPM=yes: disabled (255) WriteCache=enabled
 Drive conforms to: : 

# uname -a
Linux kw-rox.dynalias.net 2.6.6-c3 #2 Thu May 27 11:45:39 EDT 2004 i686 unknown

Output of lspci is also attached.

Happy to provide more specific details, for the asking.  Any ideas of
what's going on here, or a fix?

Thanks,
// George


-- 
George Georgalis, Architect and administrator, Linux services. IXOYE
http://galis.org/george/  cell:646-331-2027  mailto:george@galis.org
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