here's the detailed info:
hdc: TDK CDRW321040B, ATAPI CD/DVD-ROM drive
Linux jojda 2.4.17 #1 Wed Mar 13 01:33:28 PST 2002 i686 unknown
VIA Technologies, Inc. VT82C693A/694x (abit)
kernel config: CONFIG_BLK_DEV_VIA82CXXX=y
dma access both on and off (same problem)
32 bit access both on and off (same problem)
the cdrom is a cd r/rw writer
further testing (counter in ide-cd.c) showed that approximately 30-100
reads are OK, then one failure, 30-100 good reads, one failure (the
number of successfull reads fluctuates).
as far as I can tell everything else works: burning cds, reading data
cds, playing audio cds. none of these activities have any influence on
ripping (and vice versa).
another cdrom (reader only) on same ide (hdc) exhibits same symptoms,
HD on the same ide (hdc) works with no problems.
I don't see any irq conflict... as long as it's data cd the count of
interrupts in /proc/interrupts goes up (so the interrupt is working fine
for data cd).
BTW cd ripping works fine under windows, even though I've read that it
doesn't mean much because windows often pools hw instead of using IRQ.
searching the web and kernel mailing list archives reveals that:
- early 2.4.x kernels had some problems with ide and via motherboards
(different from the problem I have) - could this be some remnant of the
- there was one email that seemed to be relevant, there's no further
info on it though:
> From: Jens Axboe (email@example.com)
> Does you drive otherwise work, except for the CDDA ripping?
> I might have a possible fix for this.
in response to a problem somewhat similar to mine. the given thread
does not reveal any solution to a problem apart from the hint of hope
quoted above (Jens, are you listening?)
any pointers as to what might be wrong and how to fix it?
here's info from /proc/interrupts and lspci, not sure what else might
jojda:/home/erik# cat /proc/interrupts
0: 15518706 XT-PIC timer
1: 8968 XT-PIC keyboard
2: 0 XT-PIC cascade
5: 0 XT-PIC SoundBlaster
8: 1 XT-PIC rtc
9: 0 XT-PIC usb-uhci, usb-uhci
10: 33210 XT-PIC eth1
11: 530613 XT-PIC eth0
12: 39386 XT-PIC PS/2 Mouse
14: 593071 XT-PIC ide0
15: 21 XT-PIC ide1
here's what lspci says:
00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo
PRO133x] (rev c4)
00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South]
00:07.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06)
00:07.2 USB Controller: VIA Technologies, Inc. UHCI USB (rev 16)00:07.3
USB Controller: VIA Technologies, Inc. UHCI USB (rev 16)
00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
00:0b.0 Ethernet controller: D-Link System Inc RTL8139 Ethernet (rev 10)
00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139
00:0f.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 3 (rev
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