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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_x86/accel_missing
parent225caa38269323af1bfc2daadff5ec8bd930747f (diff)
downloadqemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.tar.gz
qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.zip
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Diffstat (limited to 'gitlab/issues/target_i386/host_x86/accel_missing')
-rw-r--r--gitlab/issues/target_i386/host_x86/accel_missing/1910.toml70
-rw-r--r--gitlab/issues/target_i386/host_x86/accel_missing/1926.toml32
-rw-r--r--gitlab/issues/target_i386/host_x86/accel_missing/1946.toml38
-rw-r--r--gitlab/issues/target_i386/host_x86/accel_missing/2608.toml19
4 files changed, 0 insertions, 159 deletions
diff --git a/gitlab/issues/target_i386/host_x86/accel_missing/1910.toml b/gitlab/issues/target_i386/host_x86/accel_missing/1910.toml
deleted file mode 100644
index 783fd1a6d..000000000
--- a/gitlab/issues/target_i386/host_x86/accel_missing/1910.toml
+++ /dev/null
@@ -1,70 +0,0 @@
-id = 1910
-title = "Signal handlers in x86_64 userspace have wrongly aligned stack"
-state = "closed"
-created_at = "2023-09-28T08:17:08.602Z"
-closed_at = "2023-09-29T14:53:31.357Z"
-labels = ["Closed::Duplicate", "host: x86", "linux-user", "target: i386"]
-url = "https://gitlab.com/qemu-project/qemu/-/issues/1910"
-host-os = "openSUSE Tumbleweed"
-host-arch = "x86_64"
-qemu-version = "8.1.0"
-guest-os = "Linux"
-guest-arch = "x86_64"
-description = """Various applications crash in signal handlers due to `movaps` getting a misaligned stack address. For some reason this is reported as a NULL deref, but `gdb` clearly shows the true cause.
-
-```plaintext
-> qemu-x86_64 /usr/bin/ruby -e '`true`'
--e:1: [BUG] Segmentation fault at 0x0000000000000000
-ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux-gnu]
-
--- Control frame information -----------------------------------------------
-c:0003 p:---- s:0011 e:000010 CFUNC  :`
-c:0002 p:0005 s:0006 e:000005 EVAL   -e:1 [FINISH]
-c:0001 p:0000 s:0003 E:0015b0 DUMMY  [FINISH]
-
--- Ruby level backtrace information ----------------------------------------
--e:1:in `<main>'
--e:1:in ``'
-
--- Machine register context ------------------------------------------------
- RIP: 0x00002aaaab50f98a RBP: 0x00002aaaabb136b8 RSP: 0x00002aaaab2a9c98
- RAX: 0x0000000000000000 RBX: 0x0000000000004946 RCX: 0x0000000000000000
- RDX: 0x00002aaaab2a9c98 RDI: 0x000000000caf0000 RSI: 0x0000000000000000
-  R8: 0x00002aaaab2aaa50  R9: 0x0000000000000050 R10: 0x0000000000000008
- R11: 0x0000000000000000 R12: 0x0000000000000002 R13: 0x0000000000007310
- R14: 0x0000000000005e10 R15: 0x00002aaab0537f20 EFL: 0x0000000000000246
-
--- C level backtrace information -------------------------------------------
-```
-
-```plaintext
-(gdb) x/i $pc
-=> 0x2aaaab50f98a:      movaps %xmm0,(%rsp)
-(gdb) p/x $rsp
-$3 = 0x2aaaab2a9998
-```"""
-reproduce = """1. ```qemu-x86_64 /usr/bin/ruby -e '`true`'```"""
-additional = """The x86_64 psABI says:
-
-> the value (%rsp − 8) is always a multiple of 16 when control is transferred to the function entry point.
-
-However, when QEMU jumps to the signal handler, $rsp is aligned to 16B, i.e. ends in `0x..0`.
-
-The relevant kernel code:
-
-https://elixir.bootlin.com/linux/v6.5.5/source/arch/x86/kernel/signal.c#L123
-
-```plaintext
-\tsp -= frame_size;
-
-\tif (ia32_frame)
-\t\t/*
-\t\t * Align the stack pointer according to the i386 ABI,
-\t\t * i.e. so that on function entry ((sp + 4) & 15) == 0.
-\t\t */
-\t\tsp = ((sp + 4) & -FRAME_ALIGNMENT) - 4;
-\telse
-\t\tsp = round_down(sp, FRAME_ALIGNMENT) - 8;
-```
-
-CC @lvivier @bonzini @rth7680"""
diff --git a/gitlab/issues/target_i386/host_x86/accel_missing/1926.toml b/gitlab/issues/target_i386/host_x86/accel_missing/1926.toml
deleted file mode 100644
index 8e795c3bd..000000000
--- a/gitlab/issues/target_i386/host_x86/accel_missing/1926.toml
+++ /dev/null
@@ -1,32 +0,0 @@
-id = 1926
-title = "Spice: handle_dev_destroy_surface_wait: condition `msg->surface_id == 0' failed (DoS via assert failure)"
-state = "closed"
-created_at = "2023-10-09T11:52:41.324Z"
-closed_at = "2025-01-13T09:42:59.989Z"
-labels = ["Fuzzer", "host: x86", "spice", "target: i386"]
-url = "https://gitlab.com/qemu-project/qemu/-/issues/1926"
-host-os = "Debian 12"
-host-arch = "x86_64"
-qemu-version = "version 8.1.50 (v8.1.0-1353-g 2f3913f4b2-dirty), commit 2f3913f4b2"
-guest-os = "n/a"
-guest-arch = "n/a"
-description = """Assert failure in libspice-server was found during fuzzing qxl-vga device.
-
-```plaintext
-qemu-system-x86_64: Spice: ../server/red-worker.cpp:367:handle_dev_destroy_surface_wait: condition `msg->surface_id == 0' failed
-Аварийный останов
-```"""
-reproduce = """1. This bug can be reroduced with 
-
-   ```plaintext
-   cat << EOF | ./qemu-system-x86_64 -display none -machine accel=qtest, -m 512M -M \\
-   pc -nodefaults -vga qxl -qtest stdio
-   outl 0xcf8 0x8000101c
-   outl 0xcfc 0xc000
-   outl 0xcf8 0x80001004
-   outw 0xcfc 0x01
-   outl 0xc00b 0x01000000
-   EOF
-   ```
-2. This bug is in another place from https://gitlab.com/qemu-project/qemu/-/issues/1829, please pay attention to it. It has to be solved, because it interferes with further fuzzing process"""
-additional = """As I mentioned, I really need this bug to be solved, because fuzzing qxl-vga device gets less efficient. I suggested to report it here, not in spice-server, because this bug can be on the QEMU side."""
diff --git a/gitlab/issues/target_i386/host_x86/accel_missing/1946.toml b/gitlab/issues/target_i386/host_x86/accel_missing/1946.toml
deleted file mode 100644
index 93bc8a1f8..000000000
--- a/gitlab/issues/target_i386/host_x86/accel_missing/1946.toml
+++ /dev/null
@@ -1,38 +0,0 @@
-id = 1946
-title = "High CPU Load after QEMU 8.1.1"
-state = "closed"
-created_at = "2023-10-16T15:19:44.051Z"
-closed_at = "2023-10-17T08:33:48.630Z"
-labels = ["host: x86", "target: i386"]
-url = "https://gitlab.com/qemu-project/qemu/-/issues/1946"
-host-os = "IPFire 2.27 (x86_64) - core180"
-host-arch = "x86_64"
-qemu-version = "8.1.1-40 (libvirt-8.10.0-33)"
-guest-os = "Ubuntu Server 20.04 LTS, Ubuntu Server 22.04 LTS"
-guest-arch = "n/a"
-description = """Since the update there is a massive CPU load and this affects the CPU load of the router.
-The VMs are partially for about 3min sporadically not accessible.
-The VMs themselves were not adjusted and I have in the console.
-
-Using the VMM, I was able to see the message recorded below.
-
-`watchdog:_ BUG: soft lockup - CPU#0 stuck for 21s! [swapper/0:0]`
-
-I will also add some data like a XML file of a VM."""
-reproduce = "n/a"
-additional = """![webproxy](/uploads/5df86f9adfdd257ca2f43697603567c3/webproxy.PNG)
-[webproxy.log](/uploads/1d428f4c59b2397b9343a62dd8c4bce2/webproxy.log)
-
-[webproxy.xml](/uploads/04221c88956c49d76b4896dd8f6fd1f0/webproxy.xml)
-[Host_Kernel.log](/uploads/f145bf599bf2003b89c17daaabb07143/Host_Kernel.log)
-
-Unfortunately I can't revert to the old QEMU version in the router OS but in the current state all my VM are not really 100% usable anymore.
-
-I would be very grateful if you could take a look at my case.
-
-many thanks in advance.
-
-
-
-
-Paul"""
diff --git a/gitlab/issues/target_i386/host_x86/accel_missing/2608.toml b/gitlab/issues/target_i386/host_x86/accel_missing/2608.toml
deleted file mode 100644
index 67d66438d..000000000
--- a/gitlab/issues/target_i386/host_x86/accel_missing/2608.toml
+++ /dev/null
@@ -1,19 +0,0 @@
-id = 2608
-title = "Black screen in Windows XP"
-state = "opened"
-created_at = "2024-10-04T17:54:26.882Z"
-closed_at = "n/a"
-labels = ["guest: Windows", "host: x86", "target: i386"]
-url = "https://gitlab.com/qemu-project/qemu/-/issues/2608"
-host-os = "Ubuntu 24.04.1 LTS (GNU/Linux )"
-host-arch = "x86_x64"
-qemu-version = "9.1.0"
-guest-os = "n/a"
-guest-arch = "n/a"
-description = """When starting the installation of Windows XP (or Windows 2003) the screen in VNC stays black while the installer is in text-mode. During the second half of the installation, where it switches to graphical GUI, the display becomes visible again.
-
-This problem never happened on 9.0.1 and below, so is a regression in 9.1.0"""
-reproduce = """1. Start the Windows XP installer
-2. Connect to VNC
-3. Screen stays black"""
-additional = "n/a"