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Diffstat (limited to 'results/classifier/108/none/1812')
| -rw-r--r-- | results/classifier/108/none/1812 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/results/classifier/108/none/1812 b/results/classifier/108/none/1812 new file mode 100644 index 00000000..43d2d7f3 --- /dev/null +++ b/results/classifier/108/none/1812 @@ -0,0 +1,40 @@ +other: 0.577 +graphic: 0.523 +semantic: 0.446 +device: 0.444 +performance: 0.428 +PID: 0.322 +debug: 0.295 +network: 0.258 +vnc: 0.254 +permissions: 0.249 +socket: 0.210 +files: 0.194 +boot: 0.184 +KVM: 0.132 + +older programs running under qemu-aarch64 segfaults +Description of problem: +Numerous aarch64 programs segfaults when run under qemu-aarch64. +Steps to reproduce: +1. Install an arm64 chroot (with working qemu-aarch64 binfmt_misc setup): +``` +debootstrap --variant=minbase --arch=arm64 jessie /tmp/jessie-arm64/ http://archive.debian.org/debian +or +debootstrap --variant=minbase --arch=arm64 xenial /tmp/xenial-arm64/ http://ports.ubuntu.com/ +``` +2. build qemu-aarch64; cp qemu-aarch64 /tmp/jessie-arm64/ +3. chroot /tmp/jessie-arm64/ +4. ./qemu-aarch64 /bin/ls +``` +qemu: uncaught target signal 11 (Segmentation fault) - core dumped +Segmentation fault +``` +Additional information: +Old userspace (eg Debian jessie, Ubuntu xenial) does not work within qemu 8.1-rc2 aarch64 linux-user emulation, since commit 59b6b42cd3446862567637f3a7ab31d69c9bef51 . My guess is that old userspace isn't prepared for recent CPU features, but it still smells strange. + +Not all programs segfaults. dash works, ls or bash does not. + +A chroot is easier in this case, since many old programs don't run inside current environment, like asserting while reading locale-specific information. To run debootstrap and to enter the resulting chroot, a working qemu-aarch64 binfmt_misc setup is needed. + +Reverting the mentioned commit makes everything work again. |