Hello Joe,
Am 11.05.2016 um 01:15 schrieb Joseph Hershberger:
Hi Kevin,
Am 09.05.2016 um 23:16 schrieb Kevin Smith:
Hello,
I would appreciate some UBI help/advice if you are able to provide it.
I am trying to use UBI to store my u-boot environment, but when I try
to 'saveenv', it is corrupting another volume of my UBI. I can image
the rootfs volume and boot Linux from it without a problem. However,
the first time that I save the u-boot environment, the rootfs becomes
unreadable. When the rootfs is corrupted, I have booted Linux from
another source and tried to attach UBI and dd out the data. It
appears as all 0xFF. Both u-boot and Linux can read the env volume correctly.
I do not think that there is a board in U-boot that uses UBI env, so I
do not have anything to compare to. I have included some details of
my setup below. Do you have any suggestion about what might be wrong?
I saw the recent patch b1d6590d35, and thought it might fix it, but am
still having the problem even with this. Maybe there is another bug?
I am glad to provide more info as needed.
Thank you,
Kevin
DTS:
flash@d0000 {
num-cs = <1>;
marvell,nand-keep-config;
marvell,nand-enable-arbiter;
nand-on-flash-bbt;
nand-ecc-strength = <4>;
nand-ecc-step-size = <512>;
status = "okay";
partition@0 {
label = "mvboot";
reg = <0 0x200000>;
};
partition@200000 {
label = "ubi";
reg = <0x200000 0x1fe00000>;
};
};
Config:
#define MTDIDS_DEFAULT "nand0=pxa3xx_nand-0"
#define MTDPARTS_DEFAULT "mtdparts=pxa3xx_nand-0:2m(mvboot),-(ubi)"
#define CONFIG_CMD_UBI
#define CONFIG_CMD_UBIFS
#define CONFIG_MTD_UBI_FASTMAP
#define CONFIG_MTD_UBI_FASTMAP_AUTOCONVERT 1
I don’t define these 2, not sure if it matters.
This should be no problem ... but you (Kevin) may disable
FASTMAP for a test?
#define CONFIG_ENV_IS_IN_UBI
#define CONFIG_ENV_UBI_PART "ubi"
#define CONFIG_ENV_UBI_VOLUME "u-boot-env"
#define CONFIG_ENV_SIZE (64 * 1024)
My config looks like this:
#define MTDIDS_DEFAULT "nand0=xilinx_nand"
#define MTDPARTS_DEFAULT \
"mtdparts=xilinx_nand:" \
"128k(fsbl)ro," \
"11M(u-boot)ro," \
"70M(boot-config)," \
"-(root)"
You have 70MB for Env?
#define CONFIG_ENV_IS_IN_UBI
#define CONFIG_ENV_UBI_PART "boot-config"
#define CONFIG_ENV_UBI_VOLUME "u-boot-env1"
#define CONFIG_ENV_UBI_VOLUME_REDUND "u-boot-env2"
#define CONFIG_ENV_SIZE 0x20000
I create volumes like this:
"writepartitions=" \
"if ubi part boot-config && " \
"ubi read $verifyaddr u-boot-env1 1 && " \
"ubi read $verifyaddr u-boot-env2 1; " \
"then " \
"ubi remove bootfs && " \
"ubi remove config; " \
"else " \
"nand erase.part boot-config && " \
"ubi part boot-config && " \
"ubi create u-boot-env1 " __stringify(CONFIG_ENV_SIZE) " dynamic
&& " \
"ubi create u-boot-env2 " __stringify(CONFIG_ENV_SIZE) "
dynamic; " \
"fi && " \
"ubi create bootfs " __stringify(CONFIG_BOOTFS_VOLUME_SIZE) " dynamic
&& " \
"ubi create config - dynamic && " \
"if ubi part root && " \
"ubi read $verifyaddr rootfs 1; " \
"then " \
"ubi remove rootfs; " \
"else " \
"nand erase.part root && " \
"ubi part root; " \
"fi && " \
"ubi create rootfs - dynamic;\0" \
=> ubi info
UBI: MTD device name: "mtd=1"
UBI: MTD device size: 510 MiB
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 126976 bytes
UBI: number of good PEBs: 4072
UBI: number of bad PEBs: 8
UBI: smallest flash I/O unit: 2048
UBI: VID header offset: 2048 (aligned 2048)
UBI: data offset: 4096
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 2
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 4072
UBI: number of PEBs reserved for bad PEB handling: 72
UBI: max/mean erase counter: 18/4
=> ubi info l
Volume information dump:
vol_id 0
reserved_pebs 1
alignment 1
data_pad 0
vol_type 3
name_len 10
usable_leb_size 126976
used_ebs 1
used_bytes 126976
last_eb_bytes 126976
corrupted 0
upd_marker 0
name u-boot-env
@Kevin: you have exactly one PEB for this volume ... may this is the problem?
Can you try it with a Volume, which have more space?
Volume information dump:
vol_id 1
reserved_pebs 3993
alignment 1
data_pad 0
vol_type 3
name_len 6
usable_leb_size 126976
used_ebs 3993
used_bytes 507015168
last_eb_bytes 126976
corrupted 0
upd_marker 0
name rootfs
Volume information dump:
vol_id 2147479551
reserved_pebs 2
alignment 1
data_pad 0
vol_type 3
name_len 13
usable_leb_size 126976
used_ebs 2
used_bytes 253952
last_eb_bytes 2
corrupted 0
upd_marker 0
name layout volume
=> ubifsmount ubi0:rootfs
Error reading superblock on volume 'ubi0:rootfs' errno=-30!
ubifsmount - mount UBIFS volume
Usage:
ubifsmount <volume-name>
- mount 'volume-name' volume
I also notice that you are not using a redundant env like I am, so maybe there
is a bug when not using a redundant env that I don't run into.
I don;t know.
bye,
Heiko
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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