Re: FFS corruption

[christos%astron.com@localhost (Christos Zoulas)]

In article <20171120103643.GH4339%trav.math.uni-bonn.de@localhost>,
Edgar Fuß  <ef%math.uni-bonn.de@localhost> wrote:
>> Is there anything ringing a bell to someone here?
>Yes, but I guess that doesn't help.
>I experienced something remotely similar after a disc firmware crash followed 
>by a mpt(4) lockup (before I wrote the timeout recovery buhrow@ committed). 
>I would get a "mangled directory" panic on the same directory again and again; 
>fsck repaired it but found nothing else. I was just short of 
>dump/newfs/restore, but then something (I guess removing that directory) 
>helped. That was on a FFSv2, though.
>
>> Any explanation?
>No. Only that apparently, an FFS can be inconsistent in a way fsck doesn't 
>recognize.

I think if the block allocation fails in a bad spot on ffsv2, fsck does
not correct it, so new file allocation from those blocks will fail.

christos