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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
| commit | d0c85e36e4de67af628d54e9ab577cc3fad7796a (patch) | |
| tree | f8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/deepseek-2-tmp/output/kernel/812398 | |
| parent | 7f4364274750eb8cb39a3e7493132fca1c01232e (diff) | |
| download | emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip | |
add deepseek and gemma results
Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/kernel/812398')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/kernel/812398 | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/kernel/812398 b/results/classifier/deepseek-2-tmp/output/kernel/812398 deleted file mode 100644 index 03b5cb4e..00000000 --- a/results/classifier/deepseek-2-tmp/output/kernel/812398 +++ /dev/null @@ -1,12 +0,0 @@ - -powerpc 7450 MMU initialization broken - -The 7540 family of PPCs' MMU can update TLBs using hardware search (like a 604 or 7400) but also using a software algorithm. The mechanism used is defined by HID0[STEN]. - -By default (CPU reset) HID0 is set to 0x80000000 (BTW; another small bug, qemu doesn't set the hardwired MSB), hence -the software-table lookup feature is *disabled*. However, the default (and immutable) 'mmu_model' for this CPU family is POWERC_MMU_SOFT_74XX which choses the soft TLB replacement scheme. - -To fix this: - -1) the initial mmu_model for the 7450 family (includes 7441, 7445, 7451, 7455, 7457, 7447, 7448) should be: POWERPC_MMU_32B -2) when HID0[STEN] is written then the mmu_model should be changed accordingly (I'm not familiar enough with the qemu internal state to judge if any cached state would have to be updated).
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