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On Wed, Dec 09, 2009 at 11:17:38PM +0100, Penguin Lover Frank Steinmetzger squawked: |
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> I use FAT32 on my external HDDs to make it easier to share with other people |
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> and OSes. Never had a problem before, but now I do. Lately, when I save |
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> videos to my disks, and play them back after the file system cache is |
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> emptied, they have completely different content (of files that are long |
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> deleted). |
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Please describe in more detail what you actually did. Did you |
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read/write the files in linux? Both under 2.6.31? A step-by-step maybe |
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appreciated. |
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> |
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> I just had the magnificent idea to look into the syslog and found loads of |
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> "kernel: bio too big device sdb (248 > 240)" |
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> |
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> I heard romours of problems with the current FAT implementation due to M$. I |
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> went back to 2.6.30 for the moment. So what???s your proposal? Usually I don???t |
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> have the need for ??bercurrent kernels, but would installing 2.6.32 help? |
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Did you file a bug? Where did you hear this "rumour"? |
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I don't see any significant changes to the VFAT driver in 2.6.31, and |
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since (I infer from your message) that downgrading to 2.6.30 is okay, |
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I doubt that is the issue. |
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You are not running any sort of LVM, RAID, or encryption, are you? |
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A similar bug seems to have occured in device mapper, where dm gave |
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the underlying fs the wrong values for max_hw_sector. |
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I am somehow more leaning toward the problem being in the usb |
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subsystem. |
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When you plug-in your device, what does |
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/sys/block/sdb/queue/max_hw_sectors_kb say? |
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(I'm afraid I am not actually a kernel dev... but I hope I am asking |
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the right question so someone who actually knows what is going on can |
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help you.) |
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Cheers, |
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W |
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-- |
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I am a nobody |
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Nobody is perfect |
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Therefore, I am perfect. |
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