RFR(S): 8207342: error occurred during error reporting (printing register info)

coleen.phillimore at oracle.com coleen.phillimore at oracle.com
Tue Jul 17 14:10:40 UTC 2018

This looks really good, helpful, and worth having in jdk11.

On 7/16/18 10:06 AM, Doerr, Martin wrote:
> Hi,
> I'd like to fix the "printing register info" step in hs_err files for jdk11 if possible.
> The function os::print_location misses a check if the pointer is readable.
> For example "jdk/bin/java -XX:+CrashGCForDumpingJavaThread -version" generates a hs_err file which doesn't analyze the registers correctly because of "error occurred during error reporting (printing register info)" in section "Register to memory mapping".
> In addition, registers are missing on PPC64 and s390.
> My proposal looks a little larger than S, but it's small besides moving the duplicated "is_readable_pointer" from codeHeapState and misc_aix to os:
> http://cr.openjdk.java.net/~mdoerr/8207342_register_info/webrev.00/
> Please review.
> Best regards,
> Martin

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