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littlefs-project / littlefs

A little fail-safe filesystem designed for microcontrollers
BSD 3-Clause "New" or "Revised" License
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lfs_file_write() return a error message of LFS_ERR_NOENT #933

Open filkli opened 5 months ago

filkli commented 5 months ago

hello

I am using the littlefs 0f 2.8.01，it working normally for a long time,suddenly,lfs_file_write() return a error message(LFS_ERR_NOENT).Only formatting can restore normal, and restarting will not solve the problem. I am a chinese,my english is so bad,but wo want to tell you the question,i hope to get help from you. thanks

evaneight commented 5 months ago

I am seeing the same issue with lfs 2.8, disc v.2.1 Block 0 and block 1 seem to be corrupted after extensive use. Is it possible a recent change introduced this problem, is there an "older known good version" that anyone can recommend.

filkli commented 5 months ago

I am seeing the same issue with lfs 2.8, disc v.2.1 Block 0 and block 1 seem to be corrupted after extensive use. Is it possible a recent change introduced this problem, is there an "older known good version" that anyone can recommend.

thanks ,i am very happy to receive your reply.it is useful to me。I am using a newer version of v2.8.2.I hope it can avoid the question. if you alerady solved the question,please tell me.thanks .

Best wish to you !

evaneight commented 5 months ago

No, I haven't resolved, I continue to test the flash drivers etc. which all seem fine. The test harness is pretty intensive and significant tests pass, but eventually it fails.

filkli commented 5 months ago

No, I haven't resolved, I continue to test the flash drivers etc. which all seem fine. The test harness is pretty intensive and significant tests pass, but eventually it fails.

I have been test the question for a long time,but it only appear a time。I think the version of V2.8.1 exist a bug possibly，But i have no valid evidence. I hope the author of littlefs can help me solve the question。Otherwise,i dare not to use the code .I want to commit spifs to you,it is another file system,it is very stable。 Moreover,if you have other method or idea,please tell me.You can contace me quickly by means of the emaile of 2460070599@qq.com,when it is convenient for you. Best wishes to you!

geky commented 5 months ago

Sorry, I don't think I have much to add.

The last significant change was the introduction of the FCRC in v2.6.0 (so v2.5.1 may be interesting). Since then we've only had minor changes (additive features, heuristic tweaks, documentation, etc; releases).

I don't know why lfs_file_write would return LFS_ERR_NOENT. This could happen if the file's metadata entry disappeared, but that shouldn't happen normally. It would be very interesting to know if this changed across a version bump.

I want to commit spifs to you,it is another file system,it is very stable

spiffs is a good filesystem. It predates littlefs and takes a very different approach, so I wouldn't be surprised if there are cases where spiffs behaves better than littlefs.

evaneight commented 5 months ago

Running with my test harness... 2.0, 2.4, and 2.8 fail the same way (after some time) - with a file creation error. 2.1.1 gets through twice as many tests as the versions above, but ultimately fails with the same error.

filkli commented 4 months ago

Sorry, I don't think I have much to add.

The last significant change was the introduction of the FCRC in v2.6.0 (so v2.5.1 may be interesting). Since then we've only had minor changes (additive features, heuristic tweaks, documentation, etc; releases).

I don't know why lfs_file_write would return LFS_ERR_NOENT. This could happen if the file's metadata entry disappeared, but that shouldn't happen normally. It would be very interesting to know if this changed across a version bump.

I want to commit spifs to you,it is another file system,it is very stable

spiffs is a good filesystem. It predates littlefs and takes a very different approach, so I wouldn't be surprised if there are cases where spiffs behaves better than littlefs.

thanks ,i am very happy to receive your reply.it is useful to me。if you have other idea,please tell me.

filkli commented 4 months ago

Running with my test harness... 2.0, 2.4, and 2.8 fail the same way (after some time) - with a file creation error. 2.1.1 gets through twice as many tests as the versions above, but ultimately fails with the same error.

Sorry,About the question,I have no good idea to solve it.I am ready to use the old version of littlefs.(2.5.1)