Messages in this thread |  | | From | emoenke <> | Subject | Re: Kernel panic with Matsushita CD-ROM in 1.99.11 | Date | Wed, 5 Jun 1996 15:31:50 +0200 (MET DST) |
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Hi Linus,
>> >Jun 4 18:21:04 zahn linux: Kernel panic: Matsushita CD-ROM controller #1: block not locked >> >> I suppose it is a compiler bug. I saw it sporadically with gcc-2.7.0, >> and it seems gone under gcc-2.7.2. >> Under 2.7.0, I could eliminate it by just putting additional, but "neutral" >> statements around that "decision spot" in ll_rw_blk.c. > >No, it might well be a real kernel bug. The low-level brw_page() stuff got >changed to take care of _another_ potential bug in 1.99.11, and that made >this older bug re-surface again. I think I nailed them both correctly in >1.99.12 (knock wood). I haven't actually ever seen any of the behaviour >that some people report, but source code debugging certainly indicates >that there could have been a real problem there.. > >In short, could you take a look at 2.0pre12, and see if the problem is >gone? It should have happened _only_ under very heavy load (although a >slow device like a CD-ROM or a floppy might have made it happen a lot >more easily).
Looks good under 2.0pre12.
Cheers -e -- Eberhard Moenkeberg GGG W W DDDD GGG G W W D D G E-Mail: emoenke@gwdg.de G GGG W W D D G GGG Phone: +49 551 2011551 Fax: +49 551 21119 G G W W W D D G G SnailMail: GGG WW WW DDDD GGG Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH Am Fassberg, D-37077 Goettingen, GERMANY At home: Modem+ISDN ("guest") ++49-551-7704102, ISDN-HDLC 7704103
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