Re: [Bug 216073] New: [s390x] kernel BUG at mm/usercopy.c:101! usercopy: Kernel memory exposure attempt detected from vmalloc 'n o area' (offset 0, size 1)!

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On Wed, Jun 08, 2022 at 10:19:22AM +0800, Zorro Lang wrote:
> One of the test environment details as [1]. The xfstests config as [2].
> It's easier to reproduce on 64k directory size xfs by running xfstests
> auto group.


Thanks for the details, Zorro!

Do you create test and scratch device with xfs_io, as README suggests?
If yes, what are sizes of the files?
Also, do you run always xfs/auto or xfs/294 hits for you reliably?

Thanks!



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