> This PR fixes a specific problem caused by using r29/rfp to unwind Java code. > For some time we have treated r29 as a callee-saved scratch register, and it > is freely used by C2-generated code. Therefore, any code in SA that uses > getFP() in a compiled frame is very likely to come to grief. > > I believe this is the root cause of 8313800, but it's very hard to prove that > because because it's something of an intermittent fault.
Andrew Haley has updated the pull request incrementally with one additional commit since the last revision: Duplicated comment ------------- Changes: - all: https://git.openjdk.org/jdk/pull/15624/files - new: https://git.openjdk.org/jdk/pull/15624/files/486abc06..a8d14946 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=15624&range=01 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15624&range=00-01 Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/15624.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/15624/head:pull/15624 PR: https://git.openjdk.org/jdk/pull/15624
