[9fans] venti errors - Plan9

This is a discussion on [9fans] venti errors - Plan9 ; Dear List, I just vac'ed my home of a non plan9 machine to my plan9 venti (using p9p'svac) and I get a lot of these plan9 log messages: 2007/1111 10:17:36 err 3: corrupted disk index bucket: n=41371 max=215,range=[0,396984) 2007/1111 10:17:38 ...

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  1. [9fans] venti errors

    Dear List,

    I just vac'ed my home of a non plan9 machine to my plan9 venti (using p9p'svac) and I get a lot of these plan9 log messages:

    2007/1111 10:17:36 err 3: corrupted disk index bucket: n=41371 max=215,range=[0,396984)
    2007/1111 10:17:38 err 3: corrupted disk index bucket: n=55627 max=215,range=[0,396984)
    /boot/venti: bad bucket XXX
    2007/1111 10:17:38 err 3: corrupted disk index bucket: n=8135 max=215, range=[0,396984)

    Should I get a new harddisk or is something else wrong?

    Regards,

    Christian

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    pub 1024D/47F79788 2005/02/02 Christian Kellermann (C-Keen)

    -----BEGIN PGP SIGNATURE-----
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    iD8DBQFHNteRXYob3Uf3l4gRArMdAJ9d6Extvin6cA5maXa6Oi G/fYXqNwCeLtmi
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  2. Re: [9fans] venti errors

    > 2007/1111 10:17:36 err 3: corrupted disk index bucket: n=41371 max=215, range=[0,396984)
    > 2007/1111 10:17:38 err 3: corrupted disk index bucket: n=55627 max=215, range=[0,396984)
    > /boot/venti: bad bucket XXX
    > 2007/1111 10:17:38 err 3: corrupted disk index bucket: n=8135 max=215, range=[0,396984)
    >
    > Should I get a new harddisk or is something else wrong?


    Your index buckets can hold a max of 215 entries
    (because you have 8192-byte blocks), but the
    16-bit entry counts look essentially random.

    It's possible that you've configured your disk with
    overlapping partitions, so that some other program
    scribbled over the index thinking it was something else.
    cat /dev/sd__/ctl and examine the ranges to make sure this isn't it.

    If the partitions are in fact disjoint, then it sounds
    like your disk is not healthy.

    Russ


  3. Re: [9fans] venti errors

    * Russ Cox [071112 04:19]:
    > > 2007/1111 10:17:36 err 3: corrupted disk index bucket: n=41371 max=215, range=[0,396984)
    > > 2007/1111 10:17:38 err 3: corrupted disk index bucket: n=55627 max=215, range=[0,396984)
    > > /boot/venti: bad bucket XXX
    > > 2007/1111 10:17:38 err 3: corrupted disk index bucket: n=8135 max=215, range=[0,396984)
    > >
    > > Should I get a new harddisk or is something else wrong?

    >
    > Your index buckets can hold a max of 215 entries
    > (because you have 8192-byte blocks), but the
    > 16-bit entry counts look essentially random.
    >
    > It's possible that you've configured your disk with
    > overlapping partitions, so that some other program
    > scribbled over the index thinking it was something else.
    > cat /dev/sd__/ctl and examine the ranges to make sure this isn't it.
    >
    > If the partitions are in fact disjoint, then it sounds
    > like your disk is not healthy.
    >


    As I didn't partition it manually but trusted the installer it looks like this:
    cpu% cat /dev/sdC0/ctl
    inquiry Maxtor 6Y080L0
    config 0040 capabilities 2F00 dma 00550040 dmactl 00000000 rwm 16 rwmctl 0
    geometry 160086528 512 16383 16 63
    part data 0 160086528
    part plan9 63 160071660
    part 9fat 63 204863
    part nvram 204863 204864
    part fossil 204864 25615779
    part arenas 25615779 152670355
    part isect 152670355 159023084
    part swap 159023084 160071660

    I guess it is time for a new disk...

    Thanks Russ for explaining it!

    Regards,

    Christian

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    You may use my gpg key for replies:
    pub 1024D/47F79788 2005/02/02 Christian Kellermann (C-Keen)

    -----BEGIN PGP SIGNATURE-----
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    iD8DBQFHOAcbXYob3Uf3l4gRAmfgAJ9kcu0eDp5zzpYDRLJCFN UytrCz5ACeNqoB
    eFXGkRga2hWc6PRDnlFMomY=
    =1zc4
    -----END PGP SIGNATURE-----


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