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    SubjectRe: Tracking down suspend/resume ext3/mmc issues on imx233
    On Mon 2012-09-10 12:33:45, Theodore Ts'o wrote:
    > On Mon, Sep 10, 2012 at 10:11:48AM -0500, Matt Sealey wrote:
    > > Wouldn't it be better if the root filesystem was marked as
    > > non-removable in the device tree - or in the case of a truly removable
    > > card, just marked in the MMC subsystem - and the MMC subsystem skipped
    > > the "it could be removed" for suspend/resume operations?
    >
    > I agree, this makes a lot of sense. If the root file system
    > disappears, you're toasted either way, so it's fair to assume that the
    > device on which the root file system is located should is
    > non-removable.

    I'm not sure I agree.

    If you treat root fs as removable, you'll get "crash". You'll need to
    replay the journal, but data is safe.

    If you treat it as non-removable, and someone manages to remove it,
    mount, and reinsert, you'll get silent data corruption.

    If the card is not removable, mark it as such...
    Pavel
    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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