i386/74650: System Reboot with umount command

[Volker Werth]

On 05/09/08 07:28, Bruce Evans wrote:
> On Thu, 8 May 2008 vwe at FreeBSD.org wrote:
> 
>> Synopsis: System Reboot with umount command
>>
>> State-Changed-From-To: feedback->closed
>>
>> We're sorry to not see any feedback received for quite some time.
>> If you think this is still an issue that should be worked on,
>> please provide the requested information and we'll be happy to
>> re-open this ticket.
>> Thank you for bringing this problem to attention!
> 
> This might be the bug unsetting the dirty flag which I submitted a fix
> last year, combined with user error (attempting to write to an unwriteable
> disk).  Write errors are supposed to cause cause endless retries and
> corresponding spews of kernel printfs (although both of these are
> wrong), so unmount() after an unrecoverable write error should always
> fail, but the bug made it always panic for msdosfs.
> 
> The bug was first implemented on 2003/12/26 in rev.1.112, so it corresponds
> exactly with the user's downgrade from FreeBSD-4.8 to FreeBSD-5.3 (5.2 only
> has rev.1.112).
> 
> The bug was fixed on 2007/10/22 in rev.1.179, just in time to miss being
> in RELENG_7 although the fix was supposed to be urgently MFC'ed to
> RELENG_6.  Thus the fix is not in any release.

Bruce,

thanks for your answer (and for checking my GNATS cleanup). I really
enjoy your explanations.

If I got you right, you think this PR should be re-opened until an
errata is being released?

Thanks

Volker