GNU bug report logs - #34797
ffmpeg: error while loading shared libraries: (...): file too short

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Alex Vong <alexvong1995 <at> gmail.com>
To: bug-guix <at> gnu.org
Cc: guix-devel <at> gnu.org, alexvong1995 <at> gmail.com
Subject: ffmpeg: error while loading shared libraries: (...): file too short
Date: Sun, 10 Mar 2019 04:10:15 +0800

[Message part 1 (text/plain, inline)]

Hello guix,

Does anyone has the same problem with ffmpeg from latest master? I've
got the following error:

========================================================================
alexvong1995 <at> debian:~$ ffmpeg --help
ffmpeg: error while loading shared libraries: /gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58: file too short
========================================================================

The following command shows that most of the shared libraries built are
empty:

========================================================================
alexvong1995 <at> debian:~$ LC_ALL=C find "$(guix build ffmpeg)/lib" -type f -execdir ls -hl '{}' ';'
-r-xr-xr-x 26 root root 0 Jan  1  1970 ./libavformat.so.58.20.100
-r-xr-xr-x 26 root root 0 Jan  1  1970 ./libavutil.so.56.22.100
-r--r--r-- 6785 root root 0 Jan  1  1970 ./libavfilter.pc
-r--r--r-- 6785 root root 0 Jan  1  1970 ./libavutil.pc
-r--r--r-- 6785 root root 0 Jan  1  1970 ./libavresample.pc
-r--r--r-- 6785 root root 0 Jan  1  1970 ./libpostproc.pc
-r--r--r-- 6785 root root 0 Jan  1  1970 ./libswresample.pc
-r--r--r-- 6785 root root 0 Jan  1  1970 ./libavcodec.pc
-r--r--r-- 6785 root root 0 Jan  1  1970 ./libavformat.pc
-r--r--r-- 6785 root root 0 Jan  1  1970 ./libswscale.pc
-r--r--r-- 6785 root root 0 Jan  1  1970 ./libavdevice.pc
-r-xr-xr-x 26 root root 0 Jan  1  1970 ./libavdevice.so.58.5.100
-r-xr-xr-x 26 root root 0 Jan  1  1970 ./libavfilter.so.7.40.101
-r-xr-xr-x 26 root root 0 Jan  1  1970 ./libavresample.so.4.0.0
-r-xr-xr-x 26 root root 0 Jan  1  1970 ./libswresample.so.3.3.100
-r-xr-xr-x 26 root root 0 Jan  1  1970 ./libpostproc.so.55.3.100
-r-xr-xr-x 26 root root 0 Jan  1  1970 ./libswscale.so.5.3.100
-r-xr-xr-x 2 root root 14M Jan  1  1970 ./libavcodec.so.58.35.100
========================================================================

I'm CC'ing guix-devel since ffmpeg is essential to many audio/video
packages (e.g. mpv, vlc).

Cheers,
Alex

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Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Tobias Geerinckx-Rice <somebody <at> not-sent-or-endorsed-by.tobias.gr>
To: Alex Vong <alexvong1995 <at> gmail.com>
Cc: guix-devel <at> gnu.org, bug-guix <at> gnu.org
Subject: Re: ffmpeg: error while loading shared libraries: (...): file too
 short
Date: Sat, 09 Mar 2019 21:28:47 +0100

Alex,

Something is amiss on your box.

Alex Vong wrote:
> Does anyone has the same problem with ffmpeg from latest master? 
> I've
> got the following error:
>
> ========================================================================
> alexvong1995 <at> debian:~$ ffmpeg --help
> ffmpeg: error while loading shared libraries: 
> /gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58: 
> file too short
> ========================================================================

--8<---------------cut here---------------start------------->8---
λ file -L 
/gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58
/gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58: 
ELF 64-bit LSB pie executable x86-64, version 1 (SYSV), 
dynamically linked, stripped

λ ls -lh 
/gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58.5.100 
-r-xr-xr-x 2 root root 152K Jan  1  1970 
/gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58.5.100
--8<---------------cut here---------------end--------------->8---

Have you fsck'd your file system lately?

T G-R

Message #13 received at 34797-done <at> debbugs.gnu.org (full text, mbox):

From: Alex Vong <alexvong1995 <at> gmail.com>
To: Tobias Geerinckx-Rice <somebody <at> not-sent-or-endorsed-by.tobias.gr>
Cc: guix-devel <at> gnu.org, 34797-done <at> debbugs.gnu.org, alexvong1995 <at> gmail.com
Subject: Re: ffmpeg: error while loading shared libraries: (...): file too
 short
Date: Sun, 10 Mar 2019 21:36:33 +0800

[Message part 1 (text/plain, inline)]

Hello Tobias,

Tobias Geerinckx-Rice <somebody <at> not-sent-or-endorsed-by.tobias.gr>
writes:

> Alex,
>
> Something is amiss on your box.
>
> Alex Vong wrote:
>> Does anyone has the same problem with ffmpeg from latest master? 
>> I've
>> got the following error:
>>
>> ========================================================================
>> alexvong1995 <at> debian:~$ ffmpeg --help
>> ffmpeg: error while loading shared libraries: 
>> /gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58:
>> file too short
>> ========================================================================
>
> λ file -L 
> /gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58
> /gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58: 
> ELF 64-bit LSB pie executable x86-64, version 1 (SYSV), 
> dynamically linked, stripped
>
> λ ls -lh 
> /gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58.5.100 
> -r-xr-xr-x 2 root root 152K Jan  1  1970 
>  /gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1/lib/libavdevice.so.58.5.100
>
> Have you fsck'd your file system lately?
>
> T G-R

Thanks for the suggestion! I think I did. Running

  sudo guix gc --verify=contents,repair

shows that glibc, perl and ffmpeg are corrupted.

However, the repair doesn't fix the
"/gnu/store/4hcr7ygdhaxws6q5dj806cbvq0dkfgkw-ffmpeg-4.1.1" item.
I guess this's because it is built using grafting.
Anyway, I roll back, delete the latest generation, build ffmpeg and it
works again!

Thanks,
Alex

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