Messages in this thread |  | | | From | "Benoit Garnier" <> | | Subject | [BUG] - 2.5.4-pre1 - I/O error on CD-ROM | | Date | Thu, 7 Feb 2002 08:23:47 +0100 |
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Since I first tried the 2.5.x serie (with 2.5.3), I got errors when reading from my CD-ROM :
Feb 7 00:20:44 fw kernel: end_request: I/O error, dev 16:40, sector 464 Feb 7 00:20:45 fw kernel: hdd: cdrom_read_intr: data underrun (4294967256 blocks) Feb 7 00:20:45 fw kernel: end_request: I/O error, dev 16:40, sector 7948 Feb 7 00:20:45 fw kernel: hdd: cdrom_read_intr: data underrun (4294967160 blocks) Feb 7 00:20:45 fw kernel: end_request: I/O error, dev 16:40, sector 8052 Feb 7 00:20:45 fw kernel: hdd: cdrom_read_intr: data underrun (4294967224 blocks) Feb 7 00:20:45 fw kernel: end_request: I/O error, dev 16:40, sector 8116 Feb 7 00:20:45 fw kernel: hdd: cdrom_read_intr: data underrun (4294967288 blocks) Feb 7 00:20:45 fw kernel: end_request: I/O error, dev 16:40, sector 8180 Feb 7 00:20:45 fw kernel: hdd: cdrom_read_intr: data underrun (4294967256 blocks) Feb 7 00:20:45 fw kernel: end_request: I/O error, dev 16:40, sector 14916 Feb 7 00:20:45 fw kernel: hdd: cdrom_read_intr: data underrun (4294967160 blocks) Feb 7 00:20:45 fw kernel: end_request: I/O error, dev 16:40, sector 15020
*** I didn't have these errors with 2.4.17 *** My CD-ROM is a generic one (I don't have physical access to the box now, but if requested I will tell you more). When doing "cat /mnt/cdrom/* >/dev/null" I can see I/O errors reported by cat but only on the 2.5.X serie. The problem occurs on 2.5.3 and 2.5.4-pre1 (without any patch applied). I didn't tried with versions between 2.5.0 and 2.5.3. I can see this from the boot log (I compiled with the VIA VT82Cxxxx driver)
Feb 7 02:43:29 fw kernel: Uniform Multi-Platform E-IDE driver Revision: 6.32 Feb 7 02:43:29 fw kernel: ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx Feb 7 02:43:29 fw kernel: VP_IDE: IDE controller on PCI slot 00:07.1 Feb 7 02:43:29 fw kernel: VP_IDE: chipset revision 6 Feb 7 02:43:29 fw kernel: VP_IDE: not 100%% native mode: will probe irqs later Feb 7 02:43:29 fw kernel: ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx Feb 7 02:43:29 fw kernel: VP_IDE: VIA vt82c586a (rev 25) IDE UDMA33 controller on pci00:07.1 Feb 7 02:43:29 fw kernel: ide0: BM-DMA at 0x6000-0x6007, BIOS settings: hda:pio, hdb:pio Feb 7 02:43:29 fw kernel: ide1: BM-DMA at 0x6008-0x600f, BIOS settings: hdc:pio, hdd:pio Feb 7 02:43:29 fw kernel: hda: JTS Corporation CHAMPION MODEL C2000-2A, ATA DISK drive Feb 7 02:43:29 fw kernel: hdd: ATAPI 50X CDROM, ATAPI CD/DVD-ROM drive Feb 7 02:43:29 fw kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 Feb 7 02:43:29 fw kernel: ide1 at 0x170-0x177,0x376 on irq 15 Feb 7 02:43:29 fw kernel: blk: queue c02e06a4, I/O limit 4095Mb (mask 0xffffffff) Feb 7 02:43:29 fw kernel: hda: 3913056 sectors (2003 MB) w/256KiB Cache, CHS=970/64/63 Feb 7 02:43:29 fw kernel: hdd: ATAPI 50X CD-ROM drive, 128kB Cache Feb 7 02:43:29 fw kernel: Uniform CD-ROM driver Revision: 3.12 [root@fw /root]# hdparm /dev/hdd /dev/hdd: HDIO_GET_MULTCOUNT failed: Invalid argument I/O support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 0 (off) keepsettings = 0 (off) HDIO_GET_NOWERR failed: Invalid argument readonly = 1 (on) readahead = 8 (on) HDIO_GETGEO_BIG failed: Invalid argument
What is funny is that if I switch DMA on, the errors are not reported anymore on dmesg, but 'cat' continues to see IO errors (and eventually the IO are locked).
Should I try the IDE patch?
Please CC me, I'm just read the list on archives...
---- Benoît GARNIER
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