What compact flash / flash disk are you using?
We had problems with the uncorrectable errors with a Sandisk compact flash.
It turned out to be a bug in the Sandisk compact flash silicon. We now use
Sandisk compact flashes which have a fix in for this, and have seen no
problems since.(Version 1.10).
Cheers,
malcolm.
Clemens Kühnle wrote:
> Hi everybody
>
> I Have a Linux Embedded System running on a Flash Disk with two
> partitions
> ( got it running with the help of this mailing list, many thanks ).
> One partition is read only, and a second partion is writable.
> The Linux Kernel is 2.2.16, the file system is ext2.
> The second, writeable partiton is mounted with the sync Flag.
>
> The system was running quit good.
> I have a database running on it storing some information.
>
> I have done some duration tests and now i got following errors on the
> flash disk:
> When the system is not rebooting nothing is going wrong and the system
> can store many data withot a problem.
> The problem comes up when i'm rebooting the Linux after i have done a
> lot of
> changes in the database and so have written a lot to the Flash Disk.
> The Database application doesn't start correct.
>
> dmesg shows the following error:
>
> hda: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error
> }
> hda: read_intr: error=0x40 { UncorrectableError }, LBAsect=10248,
> sector=8
> end_request: I/O error, dev 03:02 (hda), sector 8
> EXT2-fs error (device ide0(3,2)): read_inode_bitmap: Cannot read inode
> bitmap -
> block_group = 0, inode_bitmap = 4
>
> e2fsck shows now error!
>
> I think the problem is the duration of life of the flash disk bits?
> But why is the problem occuring only after a reboot?
> Can anybody say what i can do to avoid this problem?
> How can i find the wrong datafile with the information dmesg gives me?
> Should i try an other partition type?
>
> Many thanks for your help
>
> Clemens Kühnle
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