Date: Sat, 21 May 2005 00:02:13 +0000 (UTC) From: Peter Wemm <peter@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/amd64/amd64 exception.S Message-ID: <200505210002.j4L02DO5089263@repoman.freebsd.org>
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peter 2005-05-21 00:02:13 UTC
FreeBSD src repository
Modified files:
sys/amd64/amd64 exception.S
Log:
For non-profiling kernels, there were two symbols assigned to the same
address. One was alltraps_with_regs_pushed, the other was calltrap.
When the stack tracer walks up, it looks for magic symbol names to
determine how to parse non-standard stack frames, such as a trapframe.
It was looking for "calltrap". Which of the two symbols you got depended
on things like Phase of moon, etc. If you were unlucky, you got a
garbage stack trace for things like 'debug.trace_on_panic', which would
completely hide the actual source of the problem.
Revision Changes Path
1.122 +4 -2 src/sys/amd64/amd64/exception.S
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