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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-17 09:10:43 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-17 09:10:43 +0200 |
| commit | f2ec263023649e596c5076df32c2d328bc9393d2 (patch) | |
| tree | 5dd86caab46e552bd2e62bf9c4fb1a7504a44db4 /results/scraper/fex/1765 | |
| parent | 63d2e9d409831aa8582787234cae4741847504b7 (diff) | |
| download | qemu-analysis-main.tar.gz qemu-analysis-main.zip | |
Diffstat (limited to 'results/scraper/fex/1765')
| -rw-r--r-- | results/scraper/fex/1765 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/results/scraper/fex/1765 b/results/scraper/fex/1765 new file mode 100644 index 000000000..6a8933864 --- /dev/null +++ b/results/scraper/fex/1765 @@ -0,0 +1,26 @@ +SMC: Compile code needs to mprotect before reading, or stale core might be run +More likely to happen in the armv8.0 runner +``` +read/modify/segfault (no write made) +code cache flush +{other thread starts compiling here} +read/modify/write +{other thread finishes compiling, mprotects} +stale code gets run +``` + +CI failure +https://github.com/FEX-Emu/FEX/runs/6825655440?check_suite_focus=true#step:27:132 +``` +[DEBUG] Host CPU doesn't support atomics. Expect bad performance +[Info] Migrating to shared memory mode +Generating code on thread +Waiting for code to be modified +Modifying code from another thread +Waiting for thread to get unblocked +Thread overshoot once, this is non fatal +Thread should have been patched to not modify counter here +test failed, expected is 0 but got 1 +``` + +Also, tear-tests should be run a statistically important number of times to catch these cases \ No newline at end of file |