Re: kern/42228: Kernel deadlock prevents further file system access

[Matthias Scheler <tron%zhadum.org.uk@localhost>]

The following reply was made to PR kern/42228; it has been noted by GNATS.

From: Matthias Scheler <tron%zhadum.org.uk@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/42228: Kernel deadlock prevents further file system access
Date: Sun, 25 Oct 2009 13:59:59 +0000

 On Sun, Oct 25, 2009 at 01:55:02PM +0000, Manuel Bouyer wrote:
 >  > The function after "namei" differs from case to case. Examples are
 >  > vn_open() or do_sys_stat().
 >  
 >  this looks a lot like the ffs VOP_RENAME race issue.
 
 Is there a patch available which I can try out? And I don't understand
 why that would happen frequently on one of my 24/7 NetBSD 5.0_STABLE
 systems but not on the other, they both use FFS. Is it e.g. more likely
 to happen on systems with multiple CPU cores?
 
        Kind regards
 
 -- 
 Matthias Scheler                                  http://zhadum.org.uk/