Hi, I've found that upgrading to Cyrus 3.4.1, squatter works fine on my cloned 
imap base!
Not only it doesn't segfault, but also those cyrus.squat files of more than 2GB 
have been reindexed into a file of 175MB!
I think that my 2.5.11 version was bugged, and when the bug happened, it went 
mad and created a huge file until segfault.
 
Now I will do more tests and check again the xapian backend.
 
One question.
This version of squatter misses the "-s" option, so I have no way to tell it to 
not consider unchanged mailboxes.
This is important on my ZFS based servers, where rewriting the entire 
cyrus.squat when nothing has changed will cause a useless lot of space used by 
zfs snapshots.
Why is this "-s" option now available only on master branch?
 
Thanks a lot,
Gabriele
 
 
Sonicle S.r.l. : http://www.sonicle.com
Music: http://www.gabrielebulfon.com
eXoplanets : https://gabrielebulfon.bandcamp.com/album/exoplanets
 

 


Da: Robert Stepanek <[email protected]>
A: Gabriele Bulfon <[email protected]>Gabriele Bulfon via Info 
<[email protected]>
Data: 11 maggio 2021 13.54.40 CEST
Oggetto: Re: Squatter core dump



p.MsoNormal,p.MsoNoSpacing{margin:0}p.MsoNormal,p.MsoNoSpacing{margin:0}Yes, 
but unfortunately I didn't find time to do more than that. The log pretty much 
confirms that there's memory corruption, with invalid reads and writes all over 
the place.
 
This line looks like a potential start to debug:
 
==17293==  Address 0xff28149a0 is 0 bytes inside a block of size 2,056 free'd 
==17293==    at 0xFFFF64A29: free (vg_replace_malloc.c:549)
==17293==    by 0x407A28: write_trie_word_data (squat_build.c:1364)
 
(interestingly, in my code the free happens at line 1363).
 
As a very crude attempt, you could just comment out this free() call. It will 
leak memory, but if that omits the segfault then we have narrowed down what's 
causing the corruption.
 
On Tue, May 11, 2021, at 1:38 PM, Gabriele Bulfon wrote:
Hight, did you have any chance to check the valgrind log I've sent?
 
 
Sonicle S.r.l. : http://www.sonicle.com
Music: http://www.gabrielebulfon.com
eXoplanets : https://gabrielebulfon.bandcamp.com/album/exoplanets
 

 

 
 
Da: Robert Stepanek <[email protected]>
A: Gabriele Bulfon via Info <[email protected]>
Data: 7 maggio 2021 17.45.19 CEST
Oggetto: Re: Squatter core dump

On Fri, May 7, 2021, at 5:31 PM, Gabriele Bulfon via Info wrote:
Never did, it's our illumos distro, but I may have valgrind.
Can you help on this?
 
Just running "valgrind --leak-check=full <path-to-squatter> <your-args>" should 
do the trick.
 
Cheers,
Robert
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