diff options
| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
| commit | dee4dcba78baf712cab403d47d9db319ab7f95d6 (patch) | |
| tree | 418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/108/device/837 | |
| parent | 4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff) | |
| download | emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip | |
restructure results
Diffstat (limited to 'results/classifier/108/device/837')
| -rw-r--r-- | results/classifier/108/device/837 | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/results/classifier/108/device/837 b/results/classifier/108/device/837 deleted file mode 100644 index 744bcd62..00000000 --- a/results/classifier/108/device/837 +++ /dev/null @@ -1,45 +0,0 @@ -device: 0.946 -performance: 0.931 -graphic: 0.919 -files: 0.864 -debug: 0.815 -semantic: 0.776 -PID: 0.758 -permissions: 0.728 -network: 0.707 -boot: 0.693 -vnc: 0.638 -socket: 0.595 -other: 0.481 -KVM: 0.074 - -x86 user: icebp/int1 raises wrong signal -Description of problem: -This is a relatively minor inaccuracy. When `icebp` (`F1`) is executed, it raises `SIGILL` in QEMU, where the behavior on baremetal Linux (on an old Intel Core i5-430m) is to raise `SIGTRAP`. - -Specifically, on the architectural level, `icebp` raises `#DB` without affecting `dr6`. - -This also happens on an AArch64 host. -``` -$ ./icebp -Trace/breakpoint trap -$ qemu-x86_64 ./icebp -qemu: uncaught target signal 4 (Illegal instruction) - core dumped -Illegal instruction -``` -Steps to reproduce: -1. Compile this file using `gcc -nostdlib -static icebp.S -o icebp`, optionally with `-m32` to test i386 -``` - .globl _start -_start: - .byte 0xF1 // gas doesn't assemble this instruction opcode but it disassembles it -#ifdef __x86_64__ - mov $60, %eax - syscall -#else - mov $1, %eax - int $0x80 -#endif -``` -2. Run on baremetal. Notice how it raises `SIGTRAP` according to the shell job control message -3. Run on qemu-user. Notice how it raises `SIGILL`. |
