Your message dated Wed, 11 Jul 2012 17:47:16 +0000
with message-id <[email protected]>
and subject line Bug#660806: fixed in libdispatch 0~svn197-3.1
has caused the Debian Bug report #660806,
regarding libdispatch0 uses SSE2 instructions
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact [email protected]
immediately.)
--
660806: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=660806
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: libdispatch0
Severity: serious
libdispatch0 uses SSE2 instructions ("MFENCE") which are not available
on a Pentium 3.
According to http://www.debian.org/releases/stable/i386/ch02s01.html.en
Pentium 3 has to be supported; so at least the user should get more than
a "Illegal instruction" error message.
Both stable and testing are affected (tested with forked-daapd from testing).
gdb with version from stable:
Program received signal SIGILL, Illegal instruction.
0xb6d4ef9c in dispatch_once_f () from /usr/lib/libdispatch.so.0
(gdb) bt
#0 0xb6d4ef9c in dispatch_once_f () from /usr/lib/libdispatch.so.0
#1 0xb6d5021f in _dispatch_continuation_alloc_from_heap () from
/usr/lib/libdispatch.so.0
#2 0xb6d4f621 in ?? () from /usr/lib/libdispatch.so.0
#3 0xb6d4f5fa in dispatch_async_f () from /usr/lib/libdispatch.so.0
#4 0xb6d4f57c in dispatch_async () from /usr/lib/libdispatch.so.0
#5 0x0804faaa in ?? ()
#6 0xb6bf0e46 in __libc_start_main () from
/lib/i386-linux-gnu/i686/cmov/libc.so.6
#7 0x0804f0a1 in ?? ()
(gdb) disassemble
Dump of assembler code for function dispatch_once_f:
[...]
0xb6d4ef9c <dispatch_once_f+76>: mfence
[...]
End of assembler dump.
gdb with version from testing:
Program received signal SIGILL, Illegal instruction.
0xb6d50ed1 in dispatch_once_f () from /usr/lib/libdispatch.so.0
(gdb) bt
#0 0xb6d50ed1 in dispatch_once_f () from /usr/lib/libdispatch.so.0
#1 0xb6d51858 in ?? () from /usr/lib/libdispatch.so.0
#2 0xb6d51809 in dispatch_async_f () from /usr/lib/libdispatch.so.0
#3 0xb6d51767 in dispatch_async () from /usr/lib/libdispatch.so.0
#4 0x0804faaa in ?? ()
#5 0xb6bf2e46 in __libc_start_main () from
/lib/i386-linux-gnu/i686/cmov/libc.so.6
#6 0x0804f0a1 in ?? ()
(gdb) disassemble
Dump of assembler code for function dispatch_once_f:
[...]
0xb6d50ed1 <dispatch_once_f+49>: mfence
[...]
End of assembler dump.
# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 2
cpu MHz : 451.094
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov
pse36 mmx fxsr sse up
bogomips : 902.18
clflush size : 32
cache_alignment : 32
address sizes : 36 bits physical, 32 bits virtual
power management:
--- End Message ---
--- Begin Message ---
Source: libdispatch
Source-Version: 0~svn197-3.1
We believe that the bug you reported is fixed in the latest version of
libdispatch, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Nobuhiro Iwamatsu <[email protected]> (supplier of updated libdispatch
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Tue, 10 Jul 2012 02:05:06 +0900
Source: libdispatch
Binary: libdispatch-dev libdispatch0
Architecture: source amd64
Version: 0~svn197-3.1
Distribution: unstable
Urgency: low
Maintainer: Mark Heily <[email protected]>
Changed-By: Nobuhiro Iwamatsu <[email protected]>
Description:
libdispatch-dev - development files for the Grand Central Dispatch API
libdispatch0 - user space implementation of the Grand Central Dispatch API
Closes: 660806
Changes:
libdispatch (0~svn197-3.1) unstable; urgency=low
.
* Non-maintainer upload.
* Fix use SSE2 instructions in i386. (Closes: #660806)
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--- End Message ---
