erofs pointer corruption and kernel crash

[Arseniy Krasnov]

10.04.2026 13:06, Gao Xiang пишет:
> 
> 
> On 2026/4/10 18:03, Arseniy Krasnov wrote:
>>
>>
>> 10.04.2026 13:01, Gao Xiang пишет:
>>>
>>>
>>> On 2026/4/10 17:59, Arseniy Krasnov wrote:
>>>>
>>>>
>>>> 10.04.2026 12:20, Gao Xiang wrote:
>>>>>
>>>>>
>>>>> On 2026/4/10 16:55, Arseniy Krasnov wrote:
>>>>>>
>>>>>>
>>>>>
>>>>> ...
>>>>>
>>>>>>>>
>>>>>>>> BR2_TARGET_ROOTFS_EROFS=y
>>>>>>>> BR2_TARGET_ROOTFS_EROFS_CUSTOM_COMPRESSION=y
>>>>>>>> BR2_TARGET_ROOTFS_EROFS_COMPRESSION_ALGORITHMS="zstd,22 --max-extent-bytes 65536 -E48bit"
>>>>>
>>>>> btw, may I ask what's the erofs-utils version?
>>>>> erofs-utils 1.9?
>>>>
>>>> We have 1.8.5 erofs-utils
>>>
>>> 1.8.5 shouldn't have `-E48bit` support, that is my question.
>>
>> You mean to try to reproduce with 1.9 utils ?
> 
> Nope, I meant
> 
> BR2_TARGET_ROOTFS_EROFS_COMPRESSION_ALGORITHMS="zstd,22 --max-extent-bytes 65536 -E48bit"
> 
> is invalid in erofs-utils 1.8.5.
> 
> If you were using erofs-utils 1.9+, that may be due to
> the new `-E48bit`;
> 
> but you said you are using erofs-utils 1.8.5, that makes
> me feel confused.
> 

Ah, ok, so need to debug it at kernel side as we talked before.

Thanks

> Thanks,
> Gao Xiang