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authorChristian Krinitsin <mail@krinitsin.com>2025-06-16 16:59:00 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-16 16:59:33 +0000
commit9aba81d8eb048db908c94a3c40c25a5fde0caee6 (patch)
treeb765e7fb5e9a3c2143c68b0414e0055adb70e785 /results/classifier/118/debug/1880287
parentb89a938452613061c0f1f23e710281cf5c83cb29 (diff)
downloadqemu-analysis-9aba81d8eb048db908c94a3c40c25a5fde0caee6.tar.gz
qemu-analysis-9aba81d8eb048db908c94a3c40c25a5fde0caee6.zip
add 18th iteration of classifier
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diff --git a/results/classifier/118/debug/1880287 b/results/classifier/118/debug/1880287
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+debug: 0.941
+performance: 0.763
+mistranslation: 0.735
+virtual: 0.731
+graphic: 0.725
+TCG: 0.678
+peripherals: 0.675
+user-level: 0.668
+kernel: 0.656
+semantic: 0.607
+ppc: 0.543
+device: 0.539
+architecture: 0.501
+permissions: 0.491
+hypervisor: 0.454
+socket: 0.453
+network: 0.439
+PID: 0.437
+i386: 0.391
+files: 0.387
+boot: 0.364
+vnc: 0.340
+arm: 0.322
+assembly: 0.314
+VMM: 0.305
+x86: 0.293
+risc-v: 0.291
+KVM: 0.290
+register: 0.272
+
+gcc crashes in hppa emulation
+
+There seems to be a translation bug in the qemu-hppa (qemu v5.0.0) emulation:
+A stripped down testcase (taken from Linux kernel build) is attached.
+
+In there is "a.sh", a shell script which calls gcc-9 (fails with both debian gcc-9.3.0-11 or gcc-9.3.0-12). and "a.iii", the preprocessed source.
+
+When starting a.sh, in the emulation gcc crashes with segfault.
+On real hardware gcc succeeds to compile the source.
+
+In a hppa-user chroot running "apt update && apt install gcc-9" should be sufficient to get the needed reproducer environment.
+
+
+
+Test still crashes the VM and chroot with up-to-date debian chroot, including updated gcc-9.3.0-14.
+
+Sven Schnelle (<email address hidden>) noticed that increasing
+-#define TCG_MAX_TEMPS 512
++#define TCG_MAX_TEMPS 1024
+in include/tcg/tcg.h prevents fixes that crash.
+
+Thanks for the debugging.  Failure to free temporaries.
+
+Fixed here:
+https://git.qemu.org/?p=qemu.git;a=commitdiff;h=79826f99feb7
+
+