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    From
    SubjectRe: very strange (semi-)lockups in 2.4.5
    Date
    Pozsar Balazs writes:

    > I'm having ~2 lockups a day. The following happens:
    > If I was under X, i only can use the magic-key, but no other keyboard (eg
    > numlock) or mouse response, the screen freezes, processes stop.
    > If i was using textmode:
    > numlock still works
    > cursor blinks
    > processess stop (eg, gpm doesn't work, outputs freeze)
    > i can still switch vt's.
    > BUT, i can only type into a few vt's, last time into 3,5,6,7,8, but not
    > into 1,2 or 4!
    >
    > I cannot give you any traces, as i dont have any.
    >
    > Also note that magic-key works, and it says that it umounts filesystems if
    > i press magic-u, but next time at mount i see that reiserfs is replaying
    > transactions.
    >
    >
    > Any ideas?
    >
    > The machine is a P3-750, 512M ram, abit vp6 mb. No overclocking, and it
    > passes memtest86.

    I think I'm getting the same thing, but I don't have the magic-key
    compiled in. I'm going to hook up a VT510 to the serial port, in case
    this is just XFree86 crashing. For anyone collecting statistics:

    kernels 2.4.4-pre6 (?) and now 2.4.6-pre3
    plain Pentium MMX @ 200 MHz
    Intel motherboard -- see below
    stable since 1996, on a UPS, dust-free, and the fan works
    one lockup per day with desktop usage

    In case the serial console doesn't work, could someone post plans
    for a safe NMI board? (both ISA and PCI) The best I found:
    http://www.sandelman.ottawa.on.ca/linux-ipsec/html/2000/02/msg00425.html
    http://www.sandelman.ottawa.on.ca/linux-ipsec/html/2000/02/msg00391.html
    (for PCI you're supposed to assert SERR# on the clock -- how?)

    00:00.0 Host bridge: Intel Corporation 430TX - 82439TX MTXC (rev 01)
    00:07.0 ISA bridge: Intel Corporation 82371AB PIIX4 ISA (rev 01)
    00:07.1 IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 01)
    00:07.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01)
    00:07.3 Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 01)
    00:11.0 Ethernet controller: Digital Equipment Corporation DECchip 21040 [Tulip] (rev 23)
    00:13.0 Ethernet controller: Lite-On Communications Inc LNE100TX Fast Ethernet Adapter (rev 25)
    00:14.0 VGA compatible controller: ATI Technologies Inc 3D Rage Pro 215GP (rev 5c)
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