Which test checks for 201685 (ext4 corruption) ?

[vielmetti]

There is a comment by @axboe at

https://bugzilla.kernel.org/show_bug.cgi?id=201685#c288

to the effect that a test has been added to blktests to check for the ext4 file corruption issue described. Is that test in this test suite, and if so where is it?

[osandov]

Last I remember, I wasn't able to get the reproducer to trigger in blktests. I was going to merge it anyways, but there was some other issue with it that I don't recall. @axboe do you remember?

[vielmetti]

Thanks @osandov - I ask because I have a situation where I have a hard-to-reproduce problem on arm64 that smells a lot like the 201685 problem but isn't & am looking for better repro tools.

[osandov]

Here is the last thing I could find if you want to try pulling out the fio job and running that: https://github.com/osandov/blktests/commit/a1c4b5be0e53e82ac3f04d782d759434c9f3cb4d

[vielmetti]

Thanks @osandov - appreciated

[axboe]

@osandov that last link has all I know, what's what I wrote when I finally managed to reproduce that issue.