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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:24:58 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:27:06 +0000 |
| commit | 33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch) | |
| tree | 406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1879646 | |
| parent | adedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff) | |
| download | emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip | |
add launchpad bug reports without comments
Diffstat (limited to 'results/scraper/launchpad-without-comments/1879646')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1879646 | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1879646 b/results/scraper/launchpad-without-comments/1879646 new file mode 100644 index 00000000..6bc3e61e --- /dev/null +++ b/results/scraper/launchpad-without-comments/1879646 @@ -0,0 +1,30 @@ +[Feature request] x86: dump MSR features in human form + +QEMU might fail because host/guest cpu features are not properly configured: + +qemu-system-x86_64: error: failed to set MSR 0x48f to 0x7fefff00036dfb +qemu-system-x86_64: /root/qemu-master/target/i386/kvm.c:2695: +kvm_buf_set_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed. + +To ease debugging, it the MSR features bit could be dumped. + +Example in this thread: + +https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05593.html + + The high 32 bits are 0111 1111 1110 1111 1111 1111. + + The low 32 bits are 0000 0011 0110 1101 1111 1011. + + The features that are set are the xor, so 0111 1100 1000 0010 0000 0100: + + - bit 2, vmx-exit-nosave-debugctl + - bit 9, host address space size, is handled automatically by QEMU + - bit 15, vmx-exit-ack-intr + - bit 17, vmx-exit-save-pat + - bit 18, vmx-exit-load-pat + - bit 19, vmx-exit-save-efer + - bit 20, vmx-exit-load-efer + - bit 21, vmx-exit-save-preemption-timer + +This output ^^^ is easier to digest. \ No newline at end of file |
