On Fri, 14 Jan 2000, Soren Schmidt wrote:

> > while I am do 'mount_cd9660 /dev/acd0c /m/cd'
> > system compleatly holds, no core, no panic - hold (may be deadloop in
> > kernel mode ?)
> 
> > options        ATA_ENABLE_ATAPI_DMA    #Enable DMA on ATAPI devices
> 
> Dont define this until you know the drive is functioning otherwise,
> LOTS and I mean LOTS of atapi devices dont do DMA even if advertised.

I've removed ATA_ENABLE_ATAPI_DMA option: nothing changed :(

while boot diagnostic is:
acd0: atapi_timeout: cmd=MODE_SENSE_BIG - resetting
ata1: resetting devices .. acd0: read data overrun 8/2
ata1-master: timeout waiting for command=ef s=08 e=68
done
acd0: atapi_timeout: cmd=MODE_SENSE_BIG - resetting
ata1: resetting devices .. acd0: read data overrun 8/0
acd0: read data overrun 20/0
done
acd0: <CREATIVECD4020E/1.01> CDROM drive at ata1 as slave 
acd0: read 2755KB/s (5511KB/s), 240KB buffer, PIO4
acd0: Reads: CD-R, CD-RW, CD-DA stream
acd0: Audio: play, 255 volume levels
acd0: Mechanism: ejectable tray
acd0: Medium: CD-ROM 120mm data disc loaded, unlocked


I've build kernel with DDB and call debuuger from "hold" state
then call panic() from debugger

(kgdb) bt
#0  0xc015fb48 in boot ()
#1  0xc015fee5 in panic ()
#2  0xc013333d in db_fncall ()
#3  0xc0133169 in db_command ()
#4  0xc013322e in db_command_loop ()
#5  0xc01352bf in db_trap ()
#6  0xc026d43f in kdb_trap ()
#7  0xc0279e14 in trap ()
#8  0xc026d69b in Debugger ()
#9  0xc02698fa in scgetc ()
#10 0xc0265029 in sckbdevent ()
#11 0xc02597ab in atkbd_intr ()
#12 0xc0291398 in atkbd_isa_intr ()
#13 0xc027efc0 in getit ()
#14 0xc027f055 in DELAY ()
#15 0xc0251aa0 in atapi_wait ()
#16 0xc0251006 in atapi_interrupt ()
#17 0xc024d90e in ataintr ()


> -Søren
> 

--
TSB Russian Express, Moscow
Vladimir B. Grebenschikov, [EMAIL PROTECTED]



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