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| author | Ben Gamari <ben@smart-cactus.org> | 2022-07-19 01:35:40 -0400 |
|---|---|---|
| committer | Zubin Duggal <zubin.duggal@gmail.com> | 2022-07-27 01:58:03 +0530 |
| commit | 65d61702974704205de50d2be0444e30eee00348 (patch) | |
| tree | 1e21b44c40f457e6ff86bd2a86deb5195bda649d | |
| parent | 786ba79578de5518ae3788a2241de6a2b73a9280 (diff) | |
| download | haskell-65d61702974704205de50d2be0444e30eee00348.tar.gz | |
rts/ProfHeap: Ensure new Censuses are zeroed
When growing the Census array ProfHeap previously neglected to
zero the new part of the array. Consequently `freeEra` would attempt to
free random words that often looked suspiciously like pointers.
Fixes #21880.
(cherry picked from commit e2f0094c315746ff15b8d9650cf318f81d8416d7)
| -rw-r--r-- | rts/ProfHeap.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/rts/ProfHeap.c b/rts/ProfHeap.c index 4f0fd4c7b1..863afbd0e1 100644 --- a/rts/ProfHeap.c +++ b/rts/ProfHeap.c @@ -366,6 +366,7 @@ nextEra( void ) n_censuses *= 2; censuses = stgReallocBytes(censuses, sizeof(Census) * n_censuses, "nextEra"); + memset(&censuses[era], 0, sizeof(Census) * n_censuses / 2); } } #endif /* PROFILING */ |