Peter Maydell <peter.mayd...@linaro.org> writes: > On 21 March 2016 at 10:05, Markus Armbruster <arm...@redhat.com> wrote: >> Peter Maydell <peter.mayd...@linaro.org> writes: >>> Also some new clang ubsan warnings on x86 Linux: >>> GTESTER check-qtest-i386 >>> [deleted existing warnings about slirp code] >>> /home/petmay01/linaro/qemu-for-merges/hw/pci/pci.c:166:23: runtime >>> error: shift exponent -1 is negative >>> /home/petmay01/linaro/qemu-for-merges/hw/pci/pci.c:171:24: runtime >>> error: shift exponent -1 is negative >>> /home/petmay01/linaro/qemu-for-merges/hw/pci/pci.c:172:24: runtime >>> error: shift exponent -1 is negative >> >> Stack backtrace? If it's not too much trouble... > > Sorry, too painful -- this version of clang doesn't support > the UBSAN_OPTIONS environment variable to request a backtrace > at runtime and I can't remember the rune to connect gdb to > the qemu under a qtest test, which is what I'd need to do if > I rebuilt everything with the trap-on-error flag. > > The issues are all provoked by the i386/ivshmem/single test.
No worries, I reproduced it locally.
