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Subject: Re: UBI wl_tree_add problems after PEB scrubbed
From: Artem Bityutskiy <dedekind1@gmail.com>
To: Richard Weinberger <richard@nod.at>
Date: Mon, 03 Dec 2012 17:33:00 +0200
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On Mon, 2012-12-03 at 16:02 +0100, Richard Weinberger wrote:
> Am Mon, 03 Dec 2012 16:46:00 +0200
> schrieb Artem Bityutskiy <dedekind1@gmail.com>:
>=20
> > /me looks at Richard...
>=20
> /me looks at the code. ;)
>=20
> > OK, I confirm that this is fastmap to blame. Namely, this commit:
>=20
> CONFIG_MTD_UBI_FASTMAP is y and ubi.fm_autoconvert is 1, correct?
> What tests are you using? ubi-tests?

No, CONFIG_MTD_UBI_FASTMAP is "no", it is switched off.

I used integck. Here is the command I was using:

$ sudo modprobe nandsim && sudo modprobe ubi mtd=3D0 && sudo ubimkvol -N te=
st -m /dev/ubi0 && sudo modprobe ubifs && sudo mount -t ubifs /dev/ubi0_0 /=
mnt/ubifs/ && cd /home/dedekind/git/mtd-utils/tests/fs-tests/integrity && s=
udo sh -c 'echo 1 > /sys/kernel/debug/ubi/ubi0/tst_emulate_bitflips' && sud=
o ./integck -n2 /mnt/ubifs/

(sorry, you can easily split it).

--=20
Best Regards,
Artem Bityutskiy

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