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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:07 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:17 +0200 |
| commit | 9260319e7411ff8281700a532caa436f40120ec4 (patch) | |
| tree | 2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues/target_i386/host_missing/accel_missing/837.toml | |
| parent | 225caa38269323af1bfc2daadff5ec8bd930747f (diff) | |
| download | qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.tar.gz qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.zip | |
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Diffstat (limited to 'gitlab/issues/target_i386/host_missing/accel_missing/837.toml')
| -rw-r--r-- | gitlab/issues/target_i386/host_missing/accel_missing/837.toml | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/gitlab/issues/target_i386/host_missing/accel_missing/837.toml b/gitlab/issues/target_i386/host_missing/accel_missing/837.toml deleted file mode 100644 index 2af3ee599..000000000 --- a/gitlab/issues/target_i386/host_missing/accel_missing/837.toml +++ /dev/null @@ -1,40 +0,0 @@ -id = 837 -title = "x86 user: icebp/int1 raises wrong signal" -state = "closed" -created_at = "2022-01-24T05:02:44.865Z" -closed_at = "2022-03-15T04:43:46.057Z" -labels = ["Closed::WontFix", "linux-user", "target: i386"] -url = "https://gitlab.com/qemu-project/qemu/-/issues/837" -host-os = "MX Linux 21/Debian 11" -host-arch = "x86_64" -qemu-version = "6.2.0" -guest-os = "linux-user" -guest-arch = "i386, x86_64" -description = """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 -```""" -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`.""" -additional = "n/a" |