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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/peripherals/2826
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/peripherals/2826 b/results/classifier/118/peripherals/2826
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+peripherals: 0.974
+graphic: 0.955
+device: 0.866
+kernel: 0.847
+architecture: 0.816
+ppc: 0.770
+semantic: 0.700
+boot: 0.689
+performance: 0.621
+debug: 0.557
+network: 0.553
+VMM: 0.497
+PID: 0.496
+files: 0.473
+register: 0.455
+user-level: 0.444
+vnc: 0.359
+mistranslation: 0.329
+TCG: 0.198
+permissions: 0.185
+risc-v: 0.129
+assembly: 0.107
+socket: 0.093
+hypervisor: 0.092
+virtual: 0.085
+arm: 0.014
+i386: 0.006
+x86: 0.004
+KVM: 0.002
+
+The host PCI bridge disappeared on the big endian MIPS Malta machine
+Description of problem:
+The tests/avocado/linux_ssh_mips_malta.py test currently fails for the big endian machines. It tries to check for the PCI host bridge with ``lspci -d 11ab:4620``, but that does not show the expected output anymore -- it looks like the host bridge cannot be correctly discovered by the guest Linux kernel anymore.
+Steps to reproduce:
+1. Get the kernel and disk image from https://people.debian.org/~aurel32/qemu/mips/
+2. Boot the guest as described above.
+3. lspci -d 11ab:4620
+Additional information:
+This used to work fine before commit 145e2198d749ec09a405f1607a9932499b76f1eb , so this rework likely introduced the bug. Looking at the code that got removed there, I could see an additional check ``phb->config_reg & 0x00fff800`` that is not present in the new code anymore, so the space for the host bridge itself likely should not get swapped. Reverting 3d85c7c15fc7ce986cf1a8e73da1217228f35685 and 145e2198d749ec09a405f1607a9932499b76f1eb seems to fix the problem (at least on little endian hosts).