Vytuhnuti systemu (SCSI CD-ROM)

[Jirka Jurus]

Ahoj,

mam mensi problem s CD mechanikou. Pokud necham CD primountovany a disk
je v
mechanice, muzu si byt jisty, ze mi vytuhne masina i kdyz se na CD nic
nedela.
Vyzkousel jsem podporu CD primo v jadre i jako modul - chova se to
stejne.
Podobne se CD chova pokud z ni ctu vetsi mnozstvi dat. Mam dojem ze nad
50MB se
nedostanu. 
Mam Slackware s jadrem 2.0.32, HW je HP Vectra XU Pentium 133, 32MB RAM
CD i disk je SCSI viz dale kousek vypisu z bootu:

scsi0 : AM53/79C974 PCscsi driver rev. 0.5; host I/O address: 0xff00;
irq: 10
scsi : 1 host.
Vendor: QUANTUM   Model: FIREBALL1080S     Rev: 1Q09
Type:   Direct-Access                      ANSI SCSI revision: 02
Vendor: TOSHIBA   Model: CD-ROM XM-5301TA  Rev: 1895
Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 5, lun 0
scsi : detected 1 SCSI disk total.

A tohle je ze syslogu po vytuhnuti:

Mar 18 13:55:40 platan kernel: Detected scsi CD-ROM sr0 at scsi0,
channel 0, id 5, lun 0
Mar 18 13:55:40 platan kernel: Disc change detected.
Mar 19 02:06:03 platan kernel: scsi : aborting command due to timeout :
 pid 387961, scsi0, channel 0, id 5, lun 0 0x08 00 0b 82 08 00 
Mar 19 02:06:03 platan kernel:
--------------------------------------------------
Mar 19 02:06:03 platan kernel: scsi0 : AM53C974_abort called -- trouble
starts!!
Mar 19 02:06:03 platan kernel: AM53C974 register dump:
Mar 19 02:06:03 platan kernel: IO base: 0xff00; CTCREG: 0x0000; CMDREG:
0x44;
 STATREG: 0x10; ISREG: 0xc4
Mar 19 02:06:03 platan kernel: CFIREG: 0x80; CNTLREG1-4: 0x57; 0x40;
0x18; 0x44
Mar 19 02:06:03 platan kernel: DMACMD: 0x00; DMASTC: 0x0400; DMASPA:
0x17c7800
Mar 19 02:06:03 platan kernel: DMAWBC: 0x0000; DMAWAC: 0x17c7c00;
DMASTATUS: 0x00
Mar 19 02:06:03 platan kernel:
--------------------------------------------------
Mar 19 02:06:03 platan kernel: scsi0: aborting disconnected command

Pokud by nekdo mel nejaky napad co by sa s tim dalo delat, diky predem.

Jiri Jurus                           Mail:     jiri.jurus na spt.cz