Messages in this thread | | | Date | Thu, 14 Mar 2013 09:54:02 +0000 | From | Mark Jackson <> | Subject | Re: MTD : Kernel oops when remounting ubifs as read/write |
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On 14/03/13 09:13, Artem Bityutskiy wrote: > On Wed, 2013-03-13 at 11:12 +0000, Mark Jackson wrote: >> Sorry ... this just locks up the unit. > > OK, I've reproduced the issue with 3.9-rc2 in nandsim, see the details > below. The patch I proposed did not get the error path correctly, but it > does fix the issue. > > I think what you treat as "lockup" is the fixup process. UBIFS basically > reads the entire UBI volume and writes it back. And it uses the atomic > change UBI service, which means it also calculates CRC of everything it > writes. And this all just takes a lot of time. This has to be done only > once on the first mount.
Okay ... I've retried, but how long is "a lot of time" ?
I've waited 15 minutes and still nothing.
And I can see that there's no activity on the NAND chip select !?!
I'll put some debug info into the fixup routines to see if I can trace what's going on.
Regards Mark J.
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