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Diffstat (limited to 'results/classifier/105/instruction/1831545')
| -rw-r--r-- | results/classifier/105/instruction/1831545 | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/results/classifier/105/instruction/1831545 b/results/classifier/105/instruction/1831545 new file mode 100644 index 000000000..3262e0060 --- /dev/null +++ b/results/classifier/105/instruction/1831545 @@ -0,0 +1,37 @@ +instruction: 0.471 +graphic: 0.461 +device: 0.433 +boot: 0.407 +other: 0.274 +semantic: 0.198 +socket: 0.109 +mistranslation: 0.078 +network: 0.071 +vnc: 0.068 +assembly: 0.036 +KVM: 0.020 + +"accel/tcg: demacro cputlb" break qemu-system-x86_64 on 32-bit x86 host + +As described in https://lists.gnu.org/archive/html/qemu-devel//2019-05/msg07362.html I run into TCG regression in qemu-git. + +Unfortunately, fix from bug https://bugs.launchpad.net/qemu/+bug/1830872 seems to be nonn-effective for my case. + +For reproduction (on 32-bit x86 host, in my case Slackware with gcc 5.5.0): + +./configure --target-list=x86_64-softmmu --disable-werror --enable-debug-tcg + +make (-j5 in my case) + +try to boot any 64-bit kernel: + +x86_64-softmmu/qemu-system-x86_64 -kernel /boot/bzImage-4.12.0-x64 -accel tcg + +result is - qemu appear to hang right after "Booting the kernel" line. Decompression (xz) was ok. + +Tested with qemu-git commit e2a58ff493a2e00db3e963c1839c5374500110f2 + +32-bit OS can be booted fine, and -enable-kvm also allow 64 bit kernel/os to boot. + +bug fixed in current git (commit 474f3938d79ab36b9231c9ad3b5a9314c2aeacde). Thanks, Alex! + |