diff options
| author | Andrey Konovalov <andreyknvl@gmail.com> | 2024-07-23 00:39:02 +0200 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2024-07-23 07:55:06 +0000 |
| commit | 1ede261d340d1b94872fcd490338915478483003 (patch) | |
| tree | f1e4864cf14e1db5945ed16165983858557d7f1b /executor | |
| parent | 708c10c4c13e9c045b11491f72d92ff75f853d00 (diff) | |
executor: increase kExtraCoverSize to 1024k
Running the vusb_ath9k runtest (with [1] and [2] applied) produces ~100k of
extra coverage, which is somewhat close to the current 256k limit. A more
complicated program might produce more extra coverage and overflow the
coverage buffer.
Increase kExtraCoverSize to 1024k.
As the extra coverage buffer is maintained per-executor and not per-thread,
the total increase of the coverage mapping is ~9%, which is not too bad.
[1] https://lore.kernel.org/all/eaf54b8634970b73552dcd38bf9be6ef55238c10.1718092070.git.dvyukov@google.com/
[2] https://lore.kernel.org/all/20240722223726.194658-1-andrey.konovalov@linux.dev/T/#u
Diffstat (limited to 'executor')
| -rw-r--r-- | executor/common_linux.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/executor/common_linux.h b/executor/common_linux.h index 38951d785..193afcdda 100644 --- a/executor/common_linux.h +++ b/executor/common_linux.h @@ -9,7 +9,7 @@ #include <unistd.h> #if SYZ_EXECUTOR -const int kExtraCoverSize = 256 << 10; +const int kExtraCoverSize = 1024 << 10; struct cover_t; static void cover_reset(cover_t* cov); #endif |