Christian Ehrhardt <christian.ehrha...@canonical.com> writes: (adding qemu-arm and Richard to the CC)
> Hi, > Debian and Ubuntu run the self tests of snek as integration tests like: > > `make SNEK_NATIVE=/usr/bin/snek SNEK_ARM=/usr/share/snek/snek-arm > SNEK_RISCV=/usr/share/snek/snek-riscv -C test check` > > Those tests recently generated signal by failing in the arm emulation > tests with `qemu-system-arm` - full log [1]. > > ``` > 224s Running test pass-precedence.py. > 224s pass python3 > 224s pass snek > 224s pass-precedence.py:72 Syntax error at "". > 224s ***************** snek-arm fail ********************* > 224s pass snek-riscv > ``` > > 14 tests failed, but all with quite similar signatures. > > But that only happens when executed on armhf, the other host > architectures are all happy [2]. > > I've separated the test and ran a git bisect on qemu 10.0 -> 10.1 as > somewhere here is the trigger. > That worked fine and identified this change [3]. This is: tcg: Convert deposit to TCGOutOpDeposit Reviewed-by: Pierrick Bouvier <pierrick.bouv...@linaro.org> Signed-off-by: Richard Henderson <richard.hender...@linaro.org> > I must admit, I was able to debug it until here, but I can't see how > these snek test failures could be caused by that change. > And yes - arm emulation on an armhf platform isn't the most common > scenario. Are any of your other hosts 32 bit? > > I can't predict if there is anything wrong in snek which now is > treated differently by qemu to trigger this or if snek is all fine and > qemu broken something - Therefore I've also reported it to snek [4]. > > The tracking of the initial finding in Ubuntu is here if you want to > see more about how this commit was identified [5]. > > [1]: > https://autopkgtest.ubuntu.com/results/autopkgtest-questing/questing/armhf/s/snek/20250818_045020_246a4@/log.gz > [2]: https://autopkgtest.ubuntu.com/packages/s/snek > [3]: > https://salsa.debian.org/qemu-team/qemu/-/commit/cf4905c03135f1181e86c618426f8d6c703b38c0 > [4]: https://github.com/keith-packard/snek/issues/103 > [5]: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/2121124 -- Alex Bennée Virtualisation Tech Lead @ Linaro
