Hello,

I am using recoll and I backup my db to an external USB HDD every
weekend.

total 138493172
drwxr-xr-x 1 masaru masaru         170 Aug 24 14:46 .
drwx------ 1 masaru masaru         272 Feb  1  2024 ..
-rw-r--r-- 1 masaru masaru  4082475008 Aug 24 14:35 docdata.glass
-rw-r--r-- 1 masaru masaru           0 Aug 24 14:35 flintlock
-rw-r--r-- 1 masaru masaru         195 Aug 24 14:46 iamglass
-rw-r--r-- 1 masaru masaru 88162557952 Aug 24 14:35 position.glass
-rw-r--r-- 1 masaru masaru 28795674624 Aug 24 14:46 postlist.glass
-rw-r--r-- 1 masaru masaru   143237120 Aug 24 14:46 synonym.glass
-rw-r--r-- 1 masaru masaru 20633059328 Aug 24 14:35 termlist.glass

However, since August 3, the system started to freeze when taking
backups, and sometimes the enlightenment screams and it takes more
than 2 hours to take backups.

     E:Efreet did not update cache.
     Please check your EFreet setup.
            Is efreetd running?
     Can ~/.cache/efreet be written to?

where efreetd was running and ~/.cache/efreet was fine.

On August 3, there was a kernel update from 6.9.9 to 6.10.1, and I
suspected kernel 6.10.x because khugepage and kswapd0 appeared to be
resident in the working top command, as shown below;

%Cpu(s):  0.3 us, 22.2 sy,  0.0 ni, 77.4 id,  0.1 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem : 96311.20+total, 1430.219 free, 8710.281 used, 90541.09+buff/cache    
MiB Swap: 96311.20+total, 96306.45+free,    4.750 used. 87600.92+avail Mem 

    687 root      20   0       0      0      0 R 56.29 0.000  31:37.58 btrfs-c+
    137 root      39  19       0      0      0 R 100.0 0.000  43:17.86 khugepa+
    154 root      20   0       0      0      0 R 100.0 0.000 122:26.53 kswapd0 
 112513 root      25   5   12264   2508   1308 R 99.34 0.003  86:48.69 rsync   
    687 root      20   0       0      0      0 R 51.99 0.000  31:39.15 btrfs-c+
 141292 masaru    15  -5  244428  65596  46000 S 3.311 0.067   0:00.10 emacs   
 139385 masaru    20   0  841584 172052  86332 S 2.318 0.174   1:02.58 enlight+
 106177 root      20   0 24.270g 161500  87148 S 1.656 0.164  17:36.16 Xorg.bin
[...]

However, I could not find any reports of a kernel 6.10 problem, so I
checked and found the following description, and reverted efl to
64e20e8a80be01fd612baaae99463beb2af4a96b.

        Date:   Fri Aug 2 09:59:38 2024 +0100

        remove ppc altivec yuv to rgb as it was broken anyway

        i have no pcc hw and it seems no one who has any cares enough to run
        and test this stuff and/or fix it... so best path - remove it and rely
        on the generic c fallbacks and be a bit slower.
    
        fixes #68
    
        @fix

        commit 64e20e8a80be01fd612baaae99463beb2af4a96b

Then I made a backup of the recoll db and finished the work in less
than 20 minutes without causing any system problems.

>From the above, I believe that there is a bug in the current efl due
to the change in Date: Fri Aug 2 09:59:38 2024 +0100, am I wrong?

Best Regards.

---
┏━━┓彡   Masaru Nomiya                     mail-to: nomiya @ lake.dti.ne.jp
┃\/彡
┗━━┛  "Distinguish between what is meaningful to me and what is meaningless,
          and forget what is meaningless to me. This is where individuality 
comes
          into play. This is a function that computer cannot perform."
          
                                            -- Shigehiko Toyama (in Japanes) --


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