[BUG] 2.4.[01] lockups

From: Ivan Borissov Ganev (ganev@cc.gatech.edu)
Date: Tue Feb 06 2001 - 19:41:51 EST


I am experiencing a problem with both 2.4.0 and 2.4.1. The problem is that
at seemingly random times the console locks up. After the lockup I can no
longer type and the mouse is frozen. As far as I can tell, other systems
services are not affected, i.e. programs continue to run, music is being
played, I/O is fine. It looks like _only_ the console devices are locked

I work under X most of the time, but this has happened on a bare VC once
also. The frequency of occurrence varies from 0 to a few times a day, with
an average about 1 time/day.

When it happens I use my UPS to power the machine down gracefully and then
reboot, however, it is a nuisance. After reboot the system log does not
have anything out of the ordinary in it. I think this might be related to
the other reports of lockups with 2.4.1 (by Ed Tomlinson and Alexander

The system specs are the following:

motherboard: ABIT BH6 rev 1.0
        the BH6 is based on Intel's 440BX chipset
        (chipset BIOS updated to the latest available one)

CPU: Pentium II (Deschutes) stepping 02 @ 400MHz


HDD: 3 hard drives:
        hda: QUANTUM BIGFOOT TS8.4A, ATA DISK drive ( 8GB)
        hdb: WDC WD205AA, ATA DISK drive (30GB)
        hdc: WDC AC21200H, ATA DISK drive ( 1GB)

        hdd: CR-801NP, ATAPI CD/DVD-ROM drive

        Floppy drive(s): fd0 is 1.44M
        FDC 0 is a post-1991 82077

        two serial ports on the motherboard

        Matrox Millenium G200 (8MB SDRAM)

        Intel EtherExpressPro 10/100 (connected to DSL)

        Creative SB AWE64 (ISA device)

        USR3030/2729371324[0]{U.S. Robotics 56K FAX INT}

I also have a Hauppauge bt848-based TV tuner card but the driver for it
is compiled as a module and not loaded or used.

All hard drives use DMA by default but the kernel usually switches to PIO
for the CD-ROM after I start using it.

Any ideas as to the cause for the lockups would be greatly appreciated. I
am also willing to experiment/troubleshoot/test possible solutions, except
that I have no idea where to start from.


        Ivan Ganev 327236 Georgia Tech Station
   College of Computing Atlanta, GA 30332
Georgia Institute of Technology 1-(404)-365-8694
    ganev@cc.gatech.edu http://www.cc.gatech.edu/~ganev
             Learning is not compulsory. Neither is survival.
                        -- W. Edwards Deming

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