Re: [PATCH] generic/795: add unaligned boundary test cases for WRITE_ZEROES

[Pankaj Raghav <pankaj.raghav@linux.dev>]

>>
>> I had a similar question as Christoph. But I will include dirty unwritten
>> test case as well, as ext4 impl may slightly differ.
>>
>> Thanks for the point about the FIEMAP. I will change it to use filefrag.
>>
>> I will send the patches soon.
> 
> Thank you!
> 
>>
>> Btw, I tested ext4 and it failed the test. I assume there is a fix on the way for ext4? And did you
>> also test this for bigalloc configuration? I ran into some issues with bigrtalloc (alloc size >
>> block size). I am wondering if you hit a similar issue in ext4 for biglloc configs.
>>
> 
> Yes, there are issues in the current ext4 that need to be fixed, and I
> have already sent out the fixed patch set [1]. I have run several
> rounds of this test on my machine, including bigalloc scenarios, and
> everything looks fine by now.
> 
> After applying this patch set, does the issue you encountered still
> exist?
> 

I still haven't tried your patchset. I tried running this test on upstream 
kernel and noticed a failure. Then when I saw the ext4 mailing list and there 
were some discussion already ongoing regarding this issue.

I can give your patchset a try as well :)

--
Pankaj