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Bug
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Resolution: Fixed
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P2
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16, 17, 18
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b21
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Verified
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8277702 | 17.0.3-oracle | Aleksey Shipilev | P2 | Resolved | Fixed | b01 |
| JDK-8277526 | 17.0.2 | Aleksey Shipilev | P2 | Closed | Fixed | b06 |
In PretouchTask::pretouch, the calculation for the number of chunks that need to be touched is
(total_bytes + chunk_size - 1) / chunk_size
The numerator can overflow if total_bytes and chunk_size are sufficiently large, leading to a result probably quite different from what's desired. It could even be zero, leading to requesting no threads being requested.
(total_bytes + chunk_size - 1) / chunk_size
The numerator can overflow if total_bytes and chunk_size are sufficiently large, leading to a result probably quite different from what's desired. It could even be zero, leading to requesting no threads being requested.
- backported by
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JDK-8277702 PretouchTask num_chunks calculation can overflow
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- Resolved
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- Closed
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- relates to
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JDK-8254972 Fix pretouch chunk calculations
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- Resolved
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- links to
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Commit
openjdk/jdk17u/66c051a9
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Commit
openjdk/jdk/60cb27dc
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Review
openjdk/jdk17u/286
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Review
openjdk/jdk/5993
(2 links to)