linux-kernel - Re: regression: 4.13 cannot follow symlinks on some ext3 fs

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Message-ID: <20171123222317.bq2v26zm5i2jspui@thunk.org>
Date:   Thu, 23 Nov 2017 17:23:17 -0500
From:   Theodore Ts'o <tytso@....edu>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     tahsin@...gle.com, adilger@...ger.ca, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: regression: 4.13 cannot follow symlinks on some ext3 fs

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.

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

       	    	  	    	     	     	      - Ted