2 bonnies can stop disk activity permanently
Scott Long
scottl at samsco.org
Sun Oct 8 14:02:17 PDT 2006
Bruce Evans wrote:
> On Sun, 8 Oct 2006, Scott Long wrote:
>
>> Kris Kennaway wrote:
>>
>>> You forgot to even mention what version you're running ;-)
>>>
>>> Also show your kernel config file. Configure DDB per the chapter on
>
>
>> No need for all of that information, the bug in vfs_bio.c is quite
>> obvious. =-( Fixing it will take some thought, though.
>
>
> Is it really obvious? I think it is only obvious that many things are
> not quite right. The quick fix of increasing BKVASIZE to the size of
> the largest buffer used should still work to prevent bkva fragmentation.
>
> Bruce
The use of needsbuffer global presents a very wide open race.
Scott
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