Very Computer

I'm getting multiple 'hdc: lost interrupt' messages in /var/log/syslog when
attempting to rip audio cds using cdparanoia or cdda2wav. The messages coincide
with pauses in the ripping process. Ripping can sometimes be 'kick-started' by
opening and closing the cdrom drawer or it may restart spontaneously after a
pause of varying length. This means ripping a cd usually takes several hours and
occasionally is impossible to get completed...

During the pauses cdparanoia doesn't report any errors - the status bar simply
stops advancing.

All other cdrom operations appear unaffected - such as copying data cds to the
hard drive or playing audio cds directly.

I've tried using another cdrom drive, changing the ide cable and putting the
cd-rom drive as a slave on ide0, all with no effect.

A bit of googling gets a few hits concerning hdc:lost interrupts and ripping,
but I'm stuck as to how to investigate this problem further. The VIA chipset,
however, does seem to be a bit of a common theme.

# cat /proc/interrupts
           CPU0
  0:    7908107          XT-PIC  timer
  1:          2          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  8:          1          XT-PIC  rtc
 11:    8503720          XT-PIC  usb-uhci, usb-uhci, eth0
 12:    2744360          XT-PIC  via82cxxx
 14:     234755          XT-PIC  ide0
 15:    3554462          XT-PIC  ide1
NMI:          0
ERR:          0

# lspcidrake
unknown         : VIA Technologies|VT8605 [ProSavage PM133]
unknown         : VIA Technologies|VT8605 [PM133 AGP]
unknown         : VIA Technologies|VT82C686 [Apollo Super]
unknown         : VIA Technologies|VT82C586 IDE [Apollo]
usb-uhci        : VIA Technologies|VT82C586B USB
usb-uhci        : VIA Technologies|VT82C586B USB
unknown         : VIA Technologies|VT82C686 [Apollo Super ACPI]
via82cxxx_audio : VIA Technologies|VT82C686 [Apollo Super AC97/Audio]
unknown         : VIA Technologies|OHCI Compliant IEEE 1394 Host Controller
8139too         : Realtek|RTL-8139
unknown         : unknown (5333/8d01/ffff/ffff)
unknown         : Virtual|Hub []
unknown         : Virtual|Hub []
unknown         : Unknown|Camera []

http://www.shuttle.com/new/product/barebone/specs_b.asp?B_id=6

Any ideas?

--
Ed Jones

Sorry, that I can't be of any help. I just wanted to report a similar
error. When trying to rip CD's, I get the same "lost interrupt" errors.
I tried changing cables, trying with 2 CDROMs(NEC NR7900A CDRW-drive and
some plain LG 52x CDROM: NEC was using ide-scsi and LG plain ide-cdrom),
APIC on and off. I'm using Debian Woody - also tried at least 3
different kernels : 2.4.16 from package, 2.4.18-bf.2.4, self-compiled
2.4.19 . Same symptoms every time - resulting cdda.wav is 44 bytes (wav
header being 44B), nothing gets ripped for hours.
Technical info:
kernels config:  http://www.hot.ee/devlin/linux/kernel_config.txt
Motherboard: Chaintech 6VIA5T
        (http://www.chaintech.com.tw/Products/socket370/6via5t.htm)
Chipset: Via Apollo Pro 133T, southbridge is Via's VT82C686B
Ripping works just fine in Win2K - with both CDROM's

I would appreciate any and all help with this (Hey, if any of you
helpful folks find yourself in Estonia, I'll buy you a mug of beer :)

Teet T?rno
--
NT is a one-legged cow, but even a one legged cow is fast when it's
got 160+ rockets strapped to it.  -- Nick Manka
But that's not that impressive if all you can make it do is go
around in circles.  -- Darrell Fuhrima