Fwd: Bug#657885: ffmpeg: Illegal instruction on dreamplug (arm cpu)

[Loïc Minier]

Sure

On Mon, Jun 25, 2012, Reinhard Tartler wrote:
> Hi Loïc,
> 
> Can you perhaps have a look at this bugreport? Either the dynamic
> loader is doing something wrong here on armel, or the libavcodec
> baseline shared library builds do enable armv7 instructions after all.
> 
> AFAIUI, this does not only affect the dreamplug but also the (supposly
> popular) raspberry pi. Can/Shall we do something about it before the
> freeze?
> 
> Cheers,
> Reinhard
> 
> 
> ---------- Forwarded message ----------
> From: Darwin Te <darwin_te at hotmail.com>
> Date: Sun, Jan 29, 2012 at 5:27 PM
> Subject: Bug#657885: ffmpeg: Illegal instruction on dreamplug (arm cpu)
> To: Debian Bug Tracking System <submit at bugs.debian.org>
> 
> 
> Package: ffmpeg
> Version: 4:0.8-1
> Severity: normal
> 
> 
> Dear Maintainer,
> 
> 
> [16:16 - 1.25]
> [user at debian 1] ~ > ffmpeg
> Illegal instruction
> [16:16 - 1.25]
> [user at debian 2] ~ > gdb ffmpeg
> GNU gdb (GDB) 7.3-debian
> Copyright (C) 2011 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "arm-linux-gnueabi".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /usr/bin/ffmpeg...(no debugging symbols found)...done.
> (gdb) run
> Starting program: /usr/bin/ffmpeg
> [Thread debugging using libthread_db enabled]
> 
> Program received signal SIGILL, Illegal instruction.
> 0x00018cf8 in ?? ()
> (gdb) disassemble $pc, $pc+0x20
> Cannot access memory at address 0x0
> Dump of assembler code from 0x18cf8 to 0x18d18:
> => 0x00018cf8:  movw    lr, #2011       ; 0x7db
>   0x00018cfc:  ldr     r2, [pc, #148]  ; 0x18d98
>   0x00018d00:  ldr     r4, [pc, #148]  ; 0x18d9c
>   0x00018d04:  ldr     r12, [r12]
>   0x00018d08:  ldr     r3, [r3, r2]
>   0x00018d0c:  add     r4, pc, r4
>   0x00018d10:  ldr     r2, [pc, #136]  ; 0x18da0
>   0x00018d14:  str     lr, [sp, #4]
> End of assembler dump.
> 
> 
> More system information:
> 
> Initializing cgroup subsys cpu
> Linux version 3.1.10 (kelly at bbb.internal) (gcc version 4.4.1 (Sourcery
> G++ Lite 2010q1-202) ) #1 PREEMPT Fri Jan 20 10:47:05 MST 2012
> CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=00053977
> CPU: VIVT data cache, VIVT instruction cache
> Machine: Marvell GuruPlug Reference Board
> 
> 
> -- System Information:
> Debian Release: wheezy/sid
>  APT prefers testing
>  APT policy: (500, 'testing')
> Architecture: armel (armv5tel)
> 
> Kernel: Linux 3.1.10 (PREEMPT)
> Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=locale: Cannot
> set LC_CTYPE to default locale: No such file or directory
> locale: Cannot set LC_MESSAGES to default locale: No such file or directory
> locale: Cannot set LC_ALL to default locale: No such file or directory
> ANSI_X3.4-1968)
> Shell: /bin/sh linked to /bin/dash
> 
> Versions of packages ffmpeg depends on:
> ii  libav-tools  4:0.8-1
> 
> ffmpeg recommends no packages.
> 
> ffmpeg suggests no packages.
> 
> -- debconf information:
> perl: warning: Setting locale failed.
> perl: warning: Please check that your locale settings:
>        LANGUAGE = (unset),
>        LC_ALL = (unset),
>        LANG = "en_CA.UTF-8"
>    are supported and installed on your system.
> perl: warning: Falling back to the standard locale ("C").
> locale: Cannot set LC_CTYPE to default locale: No such file or directory
> locale: Cannot set LC_MESSAGES to default locale: No such file or directory
> locale: Cannot set LC_ALL to default locale: No such file or directory
> 
> 
> 
> _______________________________________________
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> 
> 
> -- 
> regards,
>     Reinhard
> 

-- 
Loïc Minier