diff options
Diffstat (limited to 'results/classifier/118/none/1847467')
| -rw-r--r-- | results/classifier/118/none/1847467 | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/results/classifier/118/none/1847467 b/results/classifier/118/none/1847467 new file mode 100644 index 000000000..9def68f56 --- /dev/null +++ b/results/classifier/118/none/1847467 @@ -0,0 +1,73 @@ +x86: 0.448 +device: 0.207 +mistranslation: 0.196 +performance: 0.187 +peripherals: 0.174 +network: 0.170 +i386: 0.168 +graphic: 0.155 +architecture: 0.148 +semantic: 0.143 +risc-v: 0.135 +user-level: 0.133 +vnc: 0.128 +ppc: 0.123 +register: 0.118 +virtual: 0.110 +PID: 0.108 +hypervisor: 0.106 +permissions: 0.103 +socket: 0.102 +VMM: 0.101 +arm: 0.096 +boot: 0.094 +kernel: 0.094 +KVM: 0.089 +debug: 0.082 +TCG: 0.067 +files: 0.059 +assembly: 0.050 + +qemu-x86_64 segment prefixes error + +qemu-x86_64 version 4.1.0 (qemu-x86_64 version 4.0.0 also have the issue) + +In 64-bit mode (x86_64) the DS, ES, SS or CS segment prefixes should be ignored; qemu-x86_64 does not ignore them. + +example: an x86_64 instructions preceded by FS DS (0x64 0x26) segment prefixes have the linear address of its memory reference flat-mapped (as if DS was in action) whereas it should be FS-mapped (offset by FS_base, because the DS, ES, SS or CS are just ignored). + + +I attach a small C++ program that shows this discrepancy. + +$ ./sample +I'm not in QEMU + +$ qemu-x86_64 ./sample +I'm in QEMU + + + +The QEMU project is currently considering to move its bug tracking to +another system. For this we need to know which bugs are still valid +and which could be closed already. Thus we are setting older bugs to +"Incomplete" now. + +If you still think this bug report here is valid, then please switch +the state back to "New" within the next 60 days, otherwise this report +will be marked as "Expired". Or please mark it as "Fix Released" if +the problem has been solved with a newer version of QEMU already. + +Thank you and sorry for the inconvenience. + + +Repro case in comment #1 still demonstrates bug. + + + +This is an automated cleanup. This bug report has been moved to QEMU's +new bug tracker on gitlab.com and thus gets marked as 'expired' now. +Please continue with the discussion here: + + https://gitlab.com/qemu-project/qemu/-/issues/267 + + |