Re: Strange coredumps with virtualized i386 FreeBSD 10

Gleb,

> On Thu, Dec 19, 2013 at 09:51:16AM -0500, Larry Baird wrote:
> L> Does anybody else have issues with running i386 FreeBSD 10 under Virtual Box?
> L> I have been running a number of different versions of FreeBSD under Virtual
> L> Box for some time without any issues.  Last week I installed amd64 FreeBSD
> L> 10 rc1 without any issue.  Yesterday I decided to try i386 FreeBSD 10 rc1.  
> L> Install seemed to go ok.  After initial boot I tried to update ports using
> L> portsnap.  I got a message about corrupted zip file.  I initially thought
> L> something was wrong with portsnap.  Nothing I tried seemed to fix the issue,
> L> so I moved on.  I tried to build subversion. I got coredumps from cc and was
> L> unable to build any ports. I decided something must have gone wrong with the
> L> install.  I reinstalled and got the same results. I then downloaded and
> L> installed i386 FreeBSD 10 rc2.  I had the same issues.  So I then installed
> L> FreeBSD 10 rc1 amd64.  No issues, everything seemed to behave as expected.  
> L> I then installed FreeBSD 9.2 i386.  No issues.  I then used subversion and
> L> mergemaster to upgrade to FreeBSD 10 stable.  After doing upgrade, I once
> L> again get coredumps from cc.
> L> 
> L> In case it matters Virtual box is version 4.3.4 running under Windows 7 64 bit.
> L> 
> L> Anybody else having issues with i386 FreeBSD 10?
> 
> Can you please set
> 
> vfs.unmapped_buf_allowed=0
> 
> in boot loader and try to reproduce the problem?
This seemed to fix the issue.  I can now use portsnap and I have successfully
compiled serveral ports.  

Is "unmapped_buf_allowed" a virtualization issue or an i386 issue?

Thank you for your help,
Larry


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Larry Baird
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