On 04/09/2013 01:52, Carsten Haitzler (The Rasterman) wrote:
> On Tue, 03 Sep 2013 17:35:03 +0200 Dominic Fandrey <[email protected]>
> said:
>
>> E17 frequently gets stuck in "PAUSE !", when closing a window. Most
>> frequently, but not exclusively, thunderbird -compose windows.
>>
>> Tail of the .xsession-errors file:
>> ESTART: 0.22645 [0.00001] - E_Shelf Config Update
>> ESTART: 0.22883 [0.00237] - E_Shelf Config Update Done
>> ESTART: 0.22884 [0.00002] - Manage all windows
>> ESTART: 0.23061 [0.00177] - MAIN LOOP AT LAST
>> ESTART: 0.50552 [0.27490] - DELAYED MODULE LOAD: gadman
>> ESTART: 0.50582 [0.00030] - SLEEP
>> EINA: Data at address 0x806c02f74 is invalid. Replacing with zero page.
>> PAUSE !
>
> that "data address xxx is invalid" line... is a very important thing. that's a
> sigbus. a sigbus is when an app has a perfectly valid bit of memory and tries
> to access it... BUT... it's inaccessible. this happens for 2 reasons. 1 -
> literally out of memory.
Definitely not. The system isn't under any kind of strain, there is plenty of
RAM and SWAP to go around and the system would start killing processes before
something like that happened.
> the linux kernel overallocates by default - that means
> it hands out memory that it doesn't have, assuming apps dont use it all. it
> can
> happen where they do and then a valid allocation can get a sigbus, but the
> more
> common case i know of is... mmaped i/o. if the filesystem has corruption ...
I think at a time when I was frequently trying to reproduce a certain panic
in order to generate a useful kernel dump ... likely cause.
> now this is actually e_start's problem... it shouldnt consider a sigbus a
> normal crash offense.
And it actually seems unrelated to the problem. I just had another round. Only
this time I ran startx inside tmux, so I got a complete record of the session
without running into the xdm auth issue when trying to restart e17.
There's lots of output by programs like firefox and then there's a PAUSE ! line
followed by a segfault (that one is new) and all the processes complain and
terminate.
--
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
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