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authorChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:07 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:17 +0200
commit9260319e7411ff8281700a532caa436f40120ec4 (patch)
tree2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues/target_i386/host_missing/accel_missing/837.toml
parent225caa38269323af1bfc2daadff5ec8bd930747f (diff)
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@@ -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"