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kernel: jffs2: Error garbage collecting node at 00f7fcac!

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chchia

Occasional Visitor
i got full of this log with AX58U 388.2_2, it refreshing every second.... hint?

Code:
Jun 25 20:26:04 kernel: jffs2: Error garbage collecting node at 00f7fcac!
Jun 25 20:26:04 kernel: jffs2: Data CRC 79ee23e1 != calculated CRC f48e40c1 for node at 00966e38
Jun 25 20:26:04 kernel: jffs2: read_cache_page() returned error: -5
Jun 25 20:26:04 kernel: jffs2: Error garbage collecting node at 00f7fcac!
Jun 25 20:26:04 kernel: jffs2: Data CRC 79ee23e1 != calculated CRC f48e40c1 for node at 00966e38
Jun 25 20:26:04 kernel: jffs2: read_cache_page() returned error: -5
Jun 25 20:26:04 kernel: jffs2: Error garbage collecting node at 00f7fcac!
Jun 25 20:26:04 kernel: jffs2: Data CRC 79ee23e1 != calculated CRC f48e40c1 for node at 00966e38
Jun 25 20:26:04 kernel: jffs2: read_cache_page() returned error: -5
Jun 25 20:26:04 kernel: jffs2: Error garbage collecting node at 00f7fcac!
Jun 25 20:26:04 kernel: jffs2: Data CRC 79ee23e1 != calculated CRC f48e40c1 for node at 00966e38
Jun 25 20:26:04 kernel: jffs2: read_cache_page() returned error: -5
Jun 25 20:26:04 kernel: jffs2: Error garbage collecting node at 00f7fcac!
Jun 25 20:26:04 kernel: jffs2: Data CRC 79ee23e1 != calculated CRC f48e40c1 for node at 00966e38
Jun 25 20:26:04 kernel: jffs2: read_cache_page() returned error: -5
Jun 25 20:26:04 kernel: jffs2: Error garbage collecting node at 00f7fcac!
Jun 25 20:26:04 kernel: jffs2: Data CRC 79ee23e1 != calculated CRC f48e40c1 for node at 00966e38
Jun 25 20:26:04 kernel: jffs2: read_cache_page() returned error: -5
Jun 25 20:26:04 kernel: jffs2: Error garbage collecting node at 00f7fcac!
 
Last edited:
Jffs partition is broken. I would recommend doing a format from System menu. Are you using USB thumbstick? They tend to fail more often. Consider using SSD if you have spare one.

Screenshot 2023-06-25 at 16-52-28 ASUS Wireless Router RT-AX56U - System.png
 
Not all your settings. Just what is stored on the JFFS partition.
 
What is the relevance of a USB drive to the OP's problem? :confused:
I dont think that anything. Im new to this stuff, but I remember seeing those error reports when I had USB thumbstick.
 
thanks, i am not using USB stick, formatting JFFS will lost all my setting right?
Backup your JFFS partition using the GUI option. Format the JFFS partiton and then restore it afterwards from your backup.
 
was not able to backup from GUI, the downloaded file was saying damaged, manually copied all content and restore back does work after format. thanks.
 
Food for thought - not all jffs partitions are on an attached USB drive...

Why does this error occur - let's look at the source...

Code:
/* First, use readpage() to read the appropriate page into the page cache */
/* Q: What happens if we actually try to GC the _same_ page for which commit_write()
 *    triggered garbage collection in the first place?
 * A: I _think_ it's OK. read_cache_page shouldn't deadlock, we'll write out the
 *    page OK. We'll actually write it out again in commit_write, which is a little
 *    suboptimal, but at least we're correct.
 */

The JFFS garbage collector is always reading pages - but as mentioned above, what happens when write happens at the same time as GC is trying to do it's thing...
 

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