Re: Bug#767138: libfftw3 SIGILL on armhf

2014-11-20 Thread Edmund Grimley Evans
Here are my latest thoughts on what the run-time test for NEON should probably look like. Previous proposals used two static variables instead of just one, but I think that would be less thread-safe. The variable "cached" is used in only two places, so, provided the access to it is atomic, the co

Re: Bug#767138: libfftw3 SIGILL on armhf

2014-11-19 Thread Julian Taylor
sorry for the lack of reply, I have been traveling for the last 1.5 weeks. I'll try to look at this weekend. Feel free to NMU if you need a faster solution. -- To UNSUBSCRIBE, email to debian-arm-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.o

Re: Bug#767138: libfftw3 SIGILL on armhf

2014-11-19 Thread Sébastien Villemot
Control: severity -1 serious Control: block 760271 by -1 Control: block 769974 by -1 Control: reopen 752514 Control: block 752514 by -1 Le mercredi 19 novembre 2014 à 12:15 -0800, Kamal Mostafa a écrit : > I'm investigating an armhf FTBFS of my package 'minimodem'[0], which I > now suspect might b

Re: libfftw3 SIGILL on armhf

2014-11-19 Thread Lennart Sorensen
On Wed, Nov 19, 2014 at 08:37:15PM +, Edmund Grimley Evans wrote: > Finding out which armhf machines have NEON is depressingly difficult, > but I think that abel ("Marvell Armada 370/XP CPU @ 1.6GHz on a > Marvell MV78460 SoC Development Board (ARM v7)") doesn't have NEON and > the others do, s

Re: libfftw3 SIGILL on armhf

2014-11-19 Thread Edmund Grimley Evans
Kamal Mostafa : > Edmund et al., I would appreciate your expertise here... Does it also appear > to > you that my minimodem (0.20-1) failure[0] could be caused by the fftw3 "NEON > is > perhaps broken" bug?   Does it make sense that abel.d.o would be affected by > it, but harris and asachi would

libfftw3 SIGILL on armhf

2014-11-19 Thread Kamal Mostafa
I'm investigating an armhf FTBFS of my package 'minimodem'[0], which I now suspect might be caused by this libfftw3 bug in unstable: #767138 "fftw3: runtime detection of NEON is perhaps broken" https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=767138 There, Edmund points out that "#752514 ruby-ff