Re: [Swsusp-devel] Re: swsusp problems [was Re: Your opinion on the merge?]

From: Michael Frank (mhf_at_linuxmail.org)
Date: 03/24/04

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    Date:	Wed, 24 Mar 2004 22:15:01 +0800
To: "Karol Kozimor" <sziwan@hell.org.pl>

    On Wed, 24 Mar 2004 10:32:31 +0100, Karol Kozimor <sziwan@hell.org.pl> wrote:

    > Thus wrote Michael Frank:
    >> Which reminds me of the "failed to read a chunk" message, the guys who
    >> reported
    >> it got all quiet after telling them to do more badblocks testing without
    >> diskcaching or
    >> using dd to write random data and read them back, so likely was caused by
    >> media problems.
    >
    > I'm not so sure, at least in my case. Sure, badblocks /dev/hda1 reports an
    > access beyond end, but neither badblocks /dev/hda1 $SIZEOF_HDA1 nor SMART
    > do. Anyway, the alleged bad blocks are at the end of a 400 MB partition, so
    > unless swsusp allocated swap randomly, there's hardly any chance I could
    > hit them with 256 MB RAM and LZF on. But then, this failure was a single
    > event in my case, while others reported some regularity.
    > Best regards,
    >

    Badblocks error reading beyond the end of the partition is irrelevant,
    it is a primitive bug somewhere unrelated to media condition.

    Also Badblocks without disabling drive cache is _utterly_useless_.

    It will not be a bare swsusp bug, I would have hit that in 20K+ cycles
    since using LZF and a thousand or so of other 2.4 users would have
    hit it too.

    Please help indentify the actual problem by running some decent tests.

    Regards
    Michael
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