8065585: Change ShouldNotReachHere() to never return (original) (raw)

Kim Barrett kim.barrett at oracle.com
Thu Apr 16 17:45:40 UTC 2015

On Apr 16, 2015, at 8:07 AM, Stefan Karlsson <stefan.karlsson at oracle.com> wrote:

I added a call to fatal(...) in the GC code. I get correct stacktraces in gdb, but the stacktraces in the hserr files are broken with fastdebug and product builds: Stack: [0x00007f12518d2000,0x00007f12519d3000], sp=0x00007f12519d0eb0, free space=1019k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x11db44a] VMError::reportanddie()+0x1ba V [libjvm.so+0x7efb80] reportvmerror(char const*, int, char const*, char const*)+0x90 V [libjvm.so+0x7efc49] reportvmerrornoreturn(char const*, int, char const*, char const*)+0x9 V [libjvm.so+0x7efc63] V [libjvm.so+0xfd7937] V [libjvm.so+0xfeec51] …

I remember seeing an email thread recently asking about how gdb produced stack traces, because it was successful in some cases where our mechanisms for producing hs_err files was not. So there might already be a bug about it.

But that does seem like it makes this whole proposal not work until that problem is fixed.

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