Re: panic: ffs_valloc: dup alloc

[Steven Bellovin <smb%cs.columbia.edu@localhost>]

On Mar 20, 2010, at 7:59 AM, Brett Lymn wrote:

> On Fri, Mar 19, 2010 at 05:51:46PM -0500, KAMADA Ken'ichi wrote:
>> 
>> I'm seeing a panic: ffs_valloc: dup alloc.
>> Does anyone have a similar panic?
>> 
> 
> I have seen various file system panics after suspend/resume for quite
> a while:
> 
> NetBSD rover 5.99.18 NetBSD 5.99.18 (ROVER2) #10: Tue Sep 29 08:18:23 CST 
> 2009  blymn@rover:/usr/src/sys/arch/i386/compile/ROVER2 i386
> 
> I have given up on suspending because my filesystems would be
> corrupted with monotonous regularity.  The chances of a corruption
> seems to increase with the amount of disk activity happening on
> suspend.   It seems like something is not being flushed (or not being
> marked as flushed) when the suspend happens.
> 
> -- 

Same here -- it's why my production laptop is now a Mac; -current is horribly 
unreliable on suspend/resume.  I've mentioned it here several times, but have 
never gotten a good dump to show anyone.


                --Steve Bellovin, http://www.cs.columbia.edu/~smb