Re: [bug report] dm-crypt setup failure with next-20230929 kernel

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On Mon, Oct 02, 2023 at 08:08:23AM +0000, Shinichiro Kawasaki wrote:
> Hello there,
> 
> I ran the command below on top of linux-next kernel with the tag next-20230929,
> and observed dm-crypt setup failed.
> 
>   $ sudo cryptsetup open --type=plain --key-file=/dev/zero /dev/nullb0 test
>   device-mapper: reload ioctl on test (253:0) failed: No such file or directory
> 
> Kernel reported an error related to crypto.
> 
>   device-mapper: table: 253:0: crypt: Error allocating crypto tfm (-ENOENT)
>   device-mapper: ioctl: error adding target to table
> 
> The failure was observed with null_blk and SATA HDD. It looks independent of
> block device type.
> 
> I bisected and found that the commit 31865c4c4db2 ("crypto: skcipher - Add
> lskcipher") is the trigger. I reverted the commit from next-20230929 together
> with other four dependent commits below, and observed the failure disappears.
> 
>   705b52fef3c7 ("crypto: cbc - Convert from skcipher to lskcipher")
>   32a8dc4afcfb ("crypto: ecb - Convert from skcipher to lskcipher")
>   3dfe8786b11a ("crypto: testmgr - Add support for lskcipher algorithms")
>   8aee5d4ebd11 ("crypto: lskcipher - Add compatibility wrapper around ECB")
> 
> Is this a known issue?

Thanks for the report.  I'll look into this.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt



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