Re: regression: 4.13 cannot follow symlinks on some ext3 fs

From: Andi Kleen
Date: Thu Nov 23 2017 - 18:31:09 EST


On Thu, Nov 23, 2017 at 05:23:17PM -0500, Theodore Ts'o wrote:
> On Thu, Nov 23, 2017 at 12:33:30PM -0800, Andi Kleen wrote:
> >
> > I have an older qemu VM image that i sometimes use for testing. It
> > stopped booting with 4.13-4.14 because it couldn't run init.
> > It uses ext3 for the root file system.
>
> Hmm, do you know roughly when (what krenel version) this image was
> created? We had done quite a lot of research and the belief was
> kernels never would create a "slow" symlink which was less than 60
> bytes.

The date of the inode is from 2007, the original kernel was 2.6.17
with a 32bit kernel.

> Or was this image something that was created manually (e.g., using debugfs)?

No, it was installed.

-Andi