add new classifier result

1 files changed, 47 insertions, 0 deletions

diff --git a/results/classifier/108/other/2511 b/results/classifier/108/other/2511
new file mode 100644
index 000000000..34a9a4a58
--- /dev/null
+++ b/results/classifier/108/other/2511
@@ -0,0 +1,47 @@
+graphic: 0.902
+performance: 0.841
+semantic: 0.722
+files: 0.520
+PID: 0.519
+device: 0.507
+socket: 0.408
+network: 0.399
+vnc: 0.359
+permissions: 0.268
+debug: 0.250
+other: 0.231
+boot: 0.177
+KVM: 0.171
+
+Regression 9.1.0rc2: target/i386/tcg/access.c:18: access_prepare_mmu: Assertion '...' failed.
+Description of problem:
+Executing QEMU command line crashes with 
+   ```
+qemu-system-x86_64: ../target/i386/tcg/access.c:18: access_prepare_mmu: Assertion `size > 0 && size <= TARGET_PAGE_SIZE' failed.
+   ```
+Steps to reproduce:
+1. Download https://www.qemu-advent-calendar.org/2020/download/day07.tar.gz
+2. Execute with QEMU command line
+Additional information:
+git bisect finishes with:
+   ```
+8b131065080af3cf2dda04e4e190c5a74fec2f31 is the first bad commit
+commit 8b131065080af3cf2dda04e4e190c5a74fec2f31
+Author: Paolo Bonzini <pbonzini@redhat.com>
+Date:   Tue Jun 18 09:13:49 2024 +0200
+
+    target/i386/tcg: use X86Access for TSS access
+    
+    This takes care of probing the vaddr range in advance, and is also faster
+    because it avoids repeated TLB lookups.  It also matches the Intel manual
+    better, as it says "Checks that the current (old) TSS, new TSS, and all
+    segment descriptors used in the task switch are paged into system memory";
+    note however that it's not clear how the processor checks for segment
+    descriptors, and this check is not included in the AMD manual.
+    
+    Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
+    Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+
+ target/i386/tcg/seg_helper.c | 110 +++++++++++++++++++++++--------------------
+ 1 file changed, 58 insertions(+), 52 deletions(-)
+   ```