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From: Richard Weinberger <richard@nod.at>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Scott Zhang <macromarship@gmail.com>,
	 linux-mtd <linux-mtd@lists.infradead.org>,
	 Richard Weinberger <richard.weinberger@gmail.com>
Subject: Re: ubifs_decompress: cannot decompress 2293 bytes, compressor lzo, error -22
Date: Tue, 19 Apr 2022 09:44:30 +0200 (CEST)	[thread overview]
Message-ID: <542373121.266606.1650354270993.JavaMail.zimbra@nod.at> (raw)
In-Reply-To: <20220419093317.7fe2ae6c@xps13>

----- Ursprüngliche Mail -----
> Did you run the various nand tests besides nandbiterrs? If they all
> pass then maybe Richard will be more helpful than I am...

[...]
 
>> 
>> But I noticed the lzo decompress error is still there.
>> I did  following actions to test.
>> /dev/mtd3 is mounted on /opt using ubifs.
>> tar zcvf /root/opt.tar.gz /opt  (done without error)
>> format /opt.
>> tar zxvf /root/opt.tar.gz -C /

How did you create ubifs?

Does your nand driver pass ubi tests?

>> Then when I run php program which is in opt. I saw dmesg
>> [  118.850000] UBIFS error (ubi0:0 pid 1526): ubifs_decompress: cannot
>> decompress 2293 bytes, compressor lzo, error -22
>> [  118.860000] UBIFS error (ubi0:0 pid 1526): do_readpage: bad data
>> node (block 15, inode 396)
>> [  118.870000] UBIFS error (ubi0:0 pid 1526): do_readpage: cannot read
>> page 15 of inode 396, error -22
>> [  118.880000] UBIFS error (ubi0:0 pid 1526): ubifs_decompress: cannot
>> decompress 2293 bytes, compressor lzo, error -22
>> [  118.900000] UBIFS error (ubi0:0 pid 1526): do_readpage: bad data
>> node (block 15, inode 396)
>> [  118.900000] UBIFS error (ubi0:0 pid 1526): do_readpage: cannot read
>> page 15 of inode 396, error -22
>> [  118.920000] UBIFS error (ubi0:0 pid 1526): ubifs_decompress: cannot
>> decompress 2293 bytes, compressor lzo, error -22
>> [  118.930000] UBIFS error (ubi0:0 pid 1526): do_readpage: bad data
>> node (block 15, inode 396)
>> [  118.940000] UBIFS error (ubi0:0 pid 1526): do_readpage: cannot read
>> page 15 of inode 396, error -22
>> 
>> I removed the ubifs_dump_node call to avoid many dump text. The
>> problem is when I run php program, lots of above logs dumped.
>> But I don't see any effect of the above logs. the program seems running.
>> Is there a possibility the underlying nand driver data is ok, but the
>> lzo compress/decompress code has bugs ?  I am running linux-5.4.y
>> cloned from kernel.org.

Does the problem only happen with lzo?

Please re-test with no compressor enabled (compr=none) and also mount with
the chk_data_crc mount option.

Thanks,
//richard

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http://lists.infradead.org/mailman/listinfo/linux-mtd/

  reply	other threads:[~2022-04-19  7:48 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-14 16:45 ubifs_decompress: cannot decompress 2293 bytes, compressor lzo, error -22 Scott Zhang
2022-04-14 17:24 ` Miquel Raynal
2022-04-15  4:38   ` Scott Zhang
2022-04-15  8:29     ` Miquel Raynal
2022-04-19  2:05       ` Scott Zhang
2022-04-19  7:33         ` Miquel Raynal
2022-04-19  7:44           ` Richard Weinberger [this message]
2022-04-19  9:03             ` Scott Zhang
2022-04-19  9:11               ` Scott Zhang
2022-04-20  3:00                 ` Scott Zhang
2022-04-20  6:26                   ` Richard Weinberger

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