Hi Waldemar, On 20/05/16 14:20, Waldemar Brodkorb wrote: > Greg Ungerer wrote, >> On 16/05/16 19:54, Waldemar Brodkorb wrote: >>> I compile and test the thread test app from here on >>> Qemu coldfire emulation: >>> http://debug.openadk.org/arm-pthreads/hello.c >>> >>> Sometimes it works, sometimes I get SIGILL. >>> Tested with buildroot and qemu_m68k_mcf5208_defconfig. It uses gcc >>> 4.9.3 and binutils 2.25.1. The kernel is 4.5.3 including the signal >>> handler patch. uClibc-ng 1.0.14 is used. >>> >>> Any idea? >> >> Do you get the SIGILL when running without strace? > > Yes. > >> How often does it work, and not work? > > ~ # ill=0; for i in $(seq 1 50); do /test; if [ $? -ne 0 ]; then > ill=$(($ill+1)) ;fi; sleep 2; done > ~ # echo $ill > 30 > > It is not always the same.
Ok. I expect I would see it pretty easily though if I run hello 100 times for example. >> I have a setup with a gcc-5.3/binutils-2.25.1 toolchain building >> linux-4.6 and using uClibc-ng-1.0.14 and using your hello.c test >> app and I don't see any SIGILLs. Ran it quite a few times but >> didn't see any. > > Hmm. I now changed to gcc 5.3.0 and see the same problem. > Need to try linux-4.6. What version of Qemu are you using? > I recently updated to 2.6.0. I was using an older 2.3.50. But I just pulled down 2.6 and tried again. I still don't see any SIGILLs. Looking at your strace dump and mine it puzzles me that the initial startup is a little different. On my dump the first output write() is the 3rd system call. On your traces it is much later. Can you send me your hello (and hello.gdb) binaries? Regards Greg _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
