(0.42) Initialize recycled continuations in createContinuation before usage #18657
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Currently, recycled continuations are reset and initialized in freeContinuation at the end of their use. There are also gaps where the recycled continuation might retain old values and not be properly reset. The above approach leads to corruption and segfaults as seen in the runJavaThread failure reported in eclipse-openj9#16728. To fix the above crash, all continuations (new and recycled) are initialized and reset in createContinuation just before the continuation begins execution. Related: eclipse-openj9#16728 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
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Depends on - eclipse-openj9/openj9#18649 - eclipse-openj9/openj9#18657 - eclipse-openj9/openj9#18658 Closes eclipse-openj9/openj9#16728 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
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babsingh
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Depends on - eclipse-openj9/openj9#18649 - eclipse-openj9/openj9#18657 - eclipse-openj9/openj9#18658 Closes eclipse-openj9/openj9#16728 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
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Depends on - eclipse-openj9/openj9#18649 - eclipse-openj9/openj9#18657 - eclipse-openj9/openj9#18658 Closes eclipse-openj9/openj9#16728 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
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Depends on - eclipse-openj9/openj9#18649 - eclipse-openj9/openj9#18657 - eclipse-openj9/openj9#18658 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
babsingh
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Dec 19, 2023
Depends on - eclipse-openj9/openj9#18649 - eclipse-openj9/openj9#18657 - eclipse-openj9/openj9#18658 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
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Dec 19, 2023
Depends on - eclipse-openj9/openj9#18649 - eclipse-openj9/openj9#18657 - eclipse-openj9/openj9#18658 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
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Depends on - eclipse-openj9/openj9#18649 - eclipse-openj9/openj9#18657 - eclipse-openj9/openj9#18658 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
JasonFengJ9
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Dec 20, 2023
Depends on - eclipse-openj9/openj9#18649 - eclipse-openj9/openj9#18657 - eclipse-openj9/openj9#18658 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
JasonFengJ9
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Dec 20, 2023
Depends on - eclipse-openj9/openj9#18649 - eclipse-openj9/openj9#18657 - eclipse-openj9/openj9#18658 Closes eclipse-openj9/openj9#16728 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
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Currently, recycled continuations are reset and initialized in
freeContinuationat the end of their use. There are also gaps wherethe recycled continuation might retain old values and not be properly
reset.
The above approach leads to corruption and segfaults as seen in
the
runJavaThreadfailure reported in #16728.To fix the above crash, all continuations (new and recycled) are
initialized and reset in
createContinuationjust before thecontinuation begins execution.
Related: #16728