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Re: [TEKNIK] Sluk modemet og få kernel panik!



Date: Sat, 29 Apr 2000 20:32:42 +0200
From: Frank Damgaard <sslug@sslug>
To: sslug@sslug
Subject: Re: [TEKNIK] Sluk modemet og få kernel panik!

    On Sat, Apr 29, 2000 at 11:21:00 +0200, Thomas Bartvig wrote:
    ......

    > Jeg har så siden været inde med en rescue disk for at
    > lokalisere og rette fejlen, og det er her jeg har brug
    > for lidt hjælp.
    > Jeg har kørt e2fsck på de linux-partitioner jeg har, men
    > da jeg kørte e2fsck på /dev/hda5 (mountes som /) fik jeg
    > at vide, at superblocken var corrupt. Hvordan retter jeg
    > det? Jeg prøvede, som e2fsck foreslog, at køre kommandoen
    > e2fsck -b 8193 /dev/hda5, men det resulterer bare i samme
    > fejlmeddelelse.
    Er du sikker på 8193, det er ikke 8192 ?

Jeps, 8193. Jeg har dog prøvet med 8192, det gør dog ingen forskel.

    > Og hvis der er nogen der kan forklare hvordan i al verden
    > modemet (apmd?) kan få disken til gå agurk på den måde, så
    > vil jeg meget gerne høre om det.

    Måske strøm-spikes, manglende jording og lignende ?

Strøm-spikes, hvad er det?
    ....
    > # ifup ppp0   <tænder modem>
    > apmd[255]: Standby Resume (-1% unknown) AC Power
    >
    > <læser post, mm.>
    > # ifdown ppp0 <slukker modem>
    > # <tænder modem> <slukker modem> hda: lost interrupt
    > hda: status error: status=0x50 {DriveReady SeekComplete}
    > hda: no DRQ after issuing write
    IDE driver/harsdware mistede interrupt i forbindelse med modem-sluk,
    måske for interrupt rutinen til serielport/modem havde fejl
    eller måske noget hardware-powerdown der blev sat i værk via
    powersave funktioner i bios ?


Powersave funktioner i bios aktiveres først efter 90 min, så det er nok 
ikke det der gør det.

    Du kunne jo forsøge at køre "badblocks" i read-mode på disken,
    og få checket fejlene.
    (husk "badblocks -w ...." i write mode sletter indhold!!)

badblocks rapporterede ingen fejl. Hvad kan man så gøre for at 
reetablere superblocken?


Thomas Bartvig


	- Thomas



 
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