Thanks. Works for me also now.

On 09/22/2009 06:17 PM, Duncan Murdoch wrote:

I believe this is fixed now (as of r49786). The problem is that the
parse code does bad things with the protection stack -- rather than
pairing PROTECT with UNPROTECT, it does bulk unprotects by saving and
restoring the stack pointer -- and in the new code the
ParseState.SrcFile ended up getting released more than once.

Duncan Murdoch

On 9/22/2009 5:50 AM, Romain Francois wrote:
On 09/22/2009 11:41 AM, Duncan Murdoch wrote:

On 22/09/2009 5:30 AM, Romain Francois wrote:
On 09/22/2009 11:25 AM, Peter Dalgaard wrote:
Romain Francois wrote:

However, this might be relevant about my setting, I have the
"R_KEEP_PKG_SOURCE" environment variable set to "yes". And if I
set it
to "no" it builds correctly.
AHA! Yes, that makes sense

R_KEEP_PKG_SOURCE=yes make

breaks for me too with the unprotect_ptr message (SUSE 64bit this
time).


I can now track this down to these lines in gram.(y|c)

if (!isNull(ParseState.SrcFile))
UNPROTECT_PTR(ParseState.SrcFile);

The error occurs the first time ParseState.SrcFile is not null.

Thanks for this info. I can track it down now.

Duncan Murdoch

Good. You'll probably be able to fix it much faster.

My only guess is that some extra care is needed when UNPROTECT_PTR'ing
environments, because if I comment this, then the same problem occurs
in R_FinalizeSrcRefState(SrcRefState *state) at the end of the parse.

Romain


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