[Bug bootstrap/11341] [cygwin] [pch] ICE in ggc_pop_context, at ggc-page.c:1441 while compiling libstc++3

["geoffk at geoffk dot org" <gcc-bugzilla at gcc dot gnu dot org>]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11341



------- Additional Comments From geoffk at geoffk dot org  2003-06-28 20:33 -------
Subject: Re:  [cygwin] [pch] ICE in ggc_pop_context, at ggc-page.c:1441 while compiling libstc++3

> Date: 28 Jun 2003 20:06:33 -0000
> From: "giovannibajo at libero dot it" <gcc-bugzilla@gcc.gnu.org>

> ------- Additional Comments From giovannibajo at libero dot it  2003-06-28 20:06 -------
> Subject: Re:  [cygwin] [pch] ICE in ggc_pop_context, at ggc-page.c:1441 while compiling libstc++3
> 
> geoffk at geoffk dot org <gcc-bugzilla@gcc.gnu.org> wrote:
> 
> > No, I've never seen this before.  It's probably specific to Cygwin.  I
> > doubt that a reduced testcase would be very interesting.  It seems to
> > be a random-memory-corruption bug, and so there's no guarantee that
> > it's actually related to PCH at all; but it's well worth tracking
> > down.  I would start by spending some time with the debugger.
> 
> Geoff, do you have any patch to completely disable PCH during bootstrap? At
> least that would be a check if it's PCH related or not.

That wouldn't prove that it's really anything to do with PCH.  It
could be a random memory corruption bug that just happens to only turn
up when PCH is in use.

> Besides, I was able to bootstrap cygwin with no problems till two weeks ago.
> Can you think of any patches in this timeframe that might have
> caused/uncovered this problem?

No, but it might be interesting to find if there's one patch that
caused the problem to appear.