[WP7605][fopen] Condition "errno=30" by fopen

Legato Linux distribution (Yocto project)
1

Question:
Could you tell me the condition that returned “errno=30” by fopen command?

Back Ground:
We faced the issue that WP7605 could not save user data inside WP7605 file system.
In my understanding, “errno=30” means “Read-only file system”.
However, we did not operate to save userdata to ROM area, so we’re not sure the reason why WP7605 returned “errno=30” by fopen command.

Unfortunately, we could not reproduce this issue in WP devkit, so we would like to know feasibility start for “errno=30”.

Best Regards,
— Hiroki

2

Where is the file located?
/tmp folder?
/home/root folder?

Did you try to create a file in console command in same folder?

3

Hi, jyijyi
This is under /tmp folder.

4

Did you try to create a file in console command in /tmp folder?

E.g. echo 123 > /tmp/123.txt

Do you find problem after power cycle?

5

Unfortunately, we could not reproduce this issue, we have only kernel log that was happened this issue in the field.

Do you find problem after power cycle?

Yes, 10+pcs was happened issue and reproduce rate is about 30% after power cycle.

Since we could not reproduce this issue in our side, we want feasibility study of “errno=30” by fopen command.

6

Did you try to create a file in console command in /tmp folder when you see fopen() error?

E.g. echo 123 > /tmp/123.txt

If you create file in /home/root folder which is userapp partition, does problem happen?

7

Hi, jyijyi

Could you tell me purpose to test by using following command?

E.g. echo 123 > /tmp/123.txt

In order to explain and negotiate to end-customer, we want to know it.
I guess you would like to confirm either module issue or operation issue.

8

just wanna get more clue, for example:

  1. whether this is only happening in linux program but not in console command.
  2. whether this is only happening in /tmp (RAM) area but not in /home/root (userapp partition)

BTW, here the forum is just for idea sharing, have you reported this issue to official SWI support channel?

9

I created new SFDC#01209311 that I asked feasibility study to show “errno=30” by fopen command.