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SubjectRe: xattr hash error in 4.13-rc with overlayfs over ext4
On Mon, Jul 31, 2017 at 7:08 PM, Miklos Szeredi <miklos@szeredi.hu> wrote:
> On Thu, Jul 27, 2017 at 10:54 PM, Tahsin Erdogan <tahsin@google.com> wrote:
>> Still no luck reproducing the error. I am using the test script below
>> at v4.13-rc2. Do you mind checking my script to see what I am missing?
>
> Don't know. I can reliably reproduce it under UML, but not with a
> VM. What the hell is going on?
>

Is it the same ext4 image for UML and VM? same image size? same mkfs version?

What inode size do you have in UML setup? e.g.:

dumpe2fs -h /dev/sda3|grep Inode.size
dumpe2fs 1.42.13 (17-May-2015)
Inode size: 256

have extra_isize feature? (not sure if that matters)

dumpe2fs -h /dev/sda3|grep isize
dumpe2fs 1.42.13 (17-May-2015)
Filesystem features: has_journal ext_attr resize_inode dir_index
filetype needs_recovery extent flex_bg sparse_super large_file
huge_file uninit_bg dir_nlink extra_isize
Required extra isize: 28
Desired extra isize: 28

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