[PC-BSD Testing] Mangled entry error after force shutdown from desktop hang

Warner Losh imp at bsdimp.com
Fri Jun 8 07:17:10 PDT 2012


On Jun 8, 2012, at 7:41 AM, claive alvin Acedilla wrote:
> Hello, Is UFS vulnerable to hard shutdowns?

No, especially when soft updates journaling is enabled.

Warner

> On Wed, May 2, 2012 at 6:39 AM, claive alvin Acedilla <cabpacedilla at gmail.com> wrote:
> My hardware is fine because I was doing power button force shutdowns before in ubuntu. Ubuntu was installed on the other partition of same hard disk where i installed PCBSD. I did power buttin shut downs many times in ubuntu during ubuntu lockups but it did not mangled the linux filesystem
> 
> 
> On Tue, May 1, 2012 at 4:24 PM, Kris Moore <kris at pcbsd.org> wrote:
> On 04/30/2012 15:45, claive alvin Acedilla wrote:
>> I think I have already reproduced this three times but I do not know if my steps are reproducible.
>> I reproduce this when I installed and uninstalled XFCE from system packages, log out, then login to LXDE.  Then logout LXDE, I noticed that I cannot logout to gdm because there is bug that you cannot logout to gdm when you removed XFCE from system packages. So what I did was force shutdown.
>> 
>> Then after booted again I got like this error: "panic: ufs_dirbad: /backuphd: bad dir ino 22259126 at offset 0: mangled entry"
>> PCBSD will not boot even it restarted by itself.
>> 
>> I also reproduced this when PCBSD desktop was hanging for I dont know the reason and anything is not responding, so what I did was force shutdown the power button and I get again the mangled entry error on the next boot. 
>> 
>> It seems that when the whole PCBSD desktop is hanging or "locked state" and do a force shutdown will mangle the filesystem.
>> 
>> 
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> 
> This looks more serious than some files being left over from uninstalling packages. A ufs_dirbad error like that can be a hardware or UFS filesystem bug. Take a look here:
> 
> http://phaq.phunsites.net/2007/07/01/ufs_dirbad-panic-with-mangled-entries-in-ufs/
> 
> -- 
> Kris Moore
> PC-BSD Software
> iXsystems
> 
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> 
> 
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