Messages in this thread | | | Date | Sat, 5 Apr 1997 15:03:51 +0200 | From | Gerd Knorr <> | Subject | Re: Repeatable hang with bad CD. |
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In article <199704042000.WAA01884@ryot.excelia.org>, you wrote: >Hi! > >I've experienced severe hangs of a Linux machine running the 2.0.29 kernel, >while trying to read a CD in a 4x SCSI reader. > >The fact is that when a defective CD is mounted and read, the machine finishes >needing a hard reset. It gives some errors, makes retires, and aparently >messes up the SCSI bus. I can mail more info if needed, sorry for not sending >it now, but I'm not at work.
Had such problems too a while ago (1.2.13 days). If the drive had problems to read a sector, it blocked the SCSI bus while trying to read the sector. This produced all sorts of funny errors: I got timeouts for hard disk requests, the driver tried again, and got an unexpected response (for the original request) after the CD-ROM was done with reading the sector. The adaptec 1542 driver got very confused and I had to reboot the box from time to time.
Increasing the timeout for the scsi hard disks (!) solved this problem for me.
Gerd
-- Gerd Knorr <kraxel@cs.tu-berlin.de> | Where these funny chars come from ??? http://www.cs.tu-berlin.de/~kraxel/ | [ ... ] Aha, the debug code is broken!
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