tmpfs is zero bytes (no free space), maybe a zfs bug?

Attila Nagy bra at fsn.hu
Thu Feb 10 17:27:01 UTC 2011


  On 02/10/2011 05:56 PM, Bruce Cran wrote:
> On Wed, 19 Jan 2011 11:09:31 +0100
> Attila Nagy<bra at fsn.hu>  wrote:
>
>> On 01/19/11 09:46, Jeremy Chadwick wrote:
>>> On Wed, Jan 19, 2011 at 09:37:35AM +0100, Attila Nagy wrote:
>>>> I first noticed this problem on machines with more memory (32GB
>>>> eg.), but now it happens on 4G machines too:
>>>> tmpfs                                       0B      0B      0B
>>>> 100%    /tmp
>>>> FreeBSD builder 8.2-PRERELEASE FreeBSD 8.2-PRERELEASE #0: Sat Jan
>>>> 8 22:11:54 CET 2011
>>>>
>>>> Maybe it's related, that I use zfs on these machines...
>>>>
>>>> Sometimes it grows and shrinks, but generally there is no space
>>>> even for a small file, or a socket to create.
>>> http://lists.freebsd.org/pipermail/freebsd-stable/2011-January/060867.html
>>>
>> Oh crap. :(
>>
>> I hope somebody can find the time to look into this, it's pretty
>> annoying...
> It's also listed as a bug on OpenSolaris:
> http://bugs.opensolaris.org/bugdatabase/view_bug.do;?bug_id=6804661
>
ZFS is a great innovation, which forces sysadmins to learn kernel and VM 
internals. :-O


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