Details
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Bug
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Resolution: Fixed
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P4
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20, 21, 22
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b11
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riscv
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linux
Backports
Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
---|---|---|---|---|---|---|
JDK-8327528 | 22.0.2 | Robbin Ehn | P4 | Resolved | Fixed | b01 |
JDK-8327820 | 21.0.4 | Ludovic Henry | P4 | Resolved | Fixed | b01 |
Description
https://lore.kernel.org/lkml/041c83e6-1ca5-4953-bcec-03571135165d@efficios.com/
UseSystemMemoryBarrier should not be allowed to turned on when running on Linux/RV.
There is no way telling from the syscall if this is on non-working kernel or a post 6.6 (cross-fingers it get fixed to 6.7) with a working syscall.
The linux membarrier wrapper should probably be informed on the current kernel version to determine if it's usable or not.
Attachments
Issue Links
- backported by
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JDK-8327528 RISC-V: UseSystemMemoryBarrier lacking proper OS support
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- Resolved
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JDK-8327820 RISC-V: UseSystemMemoryBarrier lacking proper OS support
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- Resolved
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- relates to
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JDK-8292591 Experimentally add back barrier-less Java thread transitions
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- Resolved
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JDK-8329961 Buffer overflow in os::Linux::kernel_version
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- Resolved
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- links to
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Commit openjdk/jdk21u-dev/d4e336d4
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Commit openjdk/jdk22u/cebe57d4
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Commit openjdk/jdk/68eb5a1d
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Review openjdk/jdk21u-dev/294
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Review openjdk/jdk22u/83
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Review openjdk/jdk/17889