deleting files when no disk space is available

[Christoph Harder]

Hello,

well I'm not sure it's the same error, but I managed to get another one after a reinstall.

I did a "call dumpsys" and after it did wrote the dump (at least I did get a message that looked like it was done) the system/debugger was non responsive.
Since nothing else did seam to work I did a restart (cut power from the psu and booted again).

At first it looked like the message from yesterday "no B_DEVMAGIC ...", but now it just prints "HAMMER: unable to find objid 000...." with different numbers again and again.

Best regards,
Christoph

Am 09.04.2016 um 19:15 schrieb Zachary Crownover:
> If you can reproduce it, when it panics do a, call dumpsys
> On 9 Apr 2016 10:08, "Christoph Harder" <shadowomf at arcor.de> wrote:
>
>> Or maybe not.
>>
>> It tried to run the application with changed parameters again.
>> It failed with a hammer error message (...panic...) and a debugger.
>>
>> I did enter "reset", since I didn't find a quit/exit command.
>>
>> After restart I do get error messages like:
>>
>> no B_DEVMAGIC (bootdev=0)
>> Mounting root from hammer:serno/F34924R03250.s1d
>> HAMMER(ROOT) Illegal UNDO TAIL signature at 300000001e636e30
>> HAMMER(ROOT) recovery failure during seqno backscan
>> HAMMER(ROOT) recovery complete
>> Failed to recover HAMMER filesystem on mount
>> Root mount failed: 5
>>
>> Manual root filesystem specification:
>> ....
>>
>>
>> So is there a way to recover this somehow or is it easier to just do a
>> fresh install?
>>
>> Best regards,
>> Christoph
>>
>>
>> Am 09.04.2016 um 18:47 schrieb Christoph Harder:
>>
>>> Hello,
>>>
>>> yes, that did the job. Thank you.
>>>
>>> Best regards,
>>> Christoph
>>>
>>> Am 09.04.2016 um 18:14 schrieb Michael Neumann:
>>>
>>>>
>>>>
>>>> On 04/09/16 18:08, Tomohiro Kusumi wrote:
>>>>
>>>>> If you're using hammer, rm file isn't deleting anything from your
>>>>> filesystem capacity.
>>>>>
>>>>> But aside from the fact rm isn't deleting anything, I think there is a
>>>>> bug in ENOSPC handling.
>>>>> I've once saw kernel panic soon after hitting ENOSPC.
>>>>>
>>>>>
>>>>> 2016-04-09 22:16 GMT+09:00 Christoph Harder <shadowomf at arcor.de>:
>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> I do have a small problem, I've written a program that filled all
>>>>>> available
>>>>>> disk space (I know not very smart...).
>>>>>> Well now I have a few SQLite database files that I can't get rid of.
>>>>>>
>>>>>> When executing "rm *" or just calling "rm a.9.db" for a single file I
>>>>>> do get
>>>>>> the error message "rm: a.9.db: No space left on device".
>>>>>> I suspect there is some space required to undo the delete which might
>>>>>> require extra space.
>>>>>>
>>>>>
>>>> "hammer cleanup" or hammer prune[-everything] will help.
>>>>
>>>> Regards,
>>>>
>>>>     Michael
>>>>
>>>>
>>>
>