Re: Is gcc thread-unsafe?

!MAILaRCHIVE_VOTE_RePLACE
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
To: Linus Torvalds <torvalds@...>
Cc: Bart Van Assche <bart.vanassche@...>, Linux Kernel Mailing List <linux-kernel@...>, Tomash Brechko <tomash.brechko@...>
Date: Sunday, November 4, 2007 - 1:58 pm

Linus Torvalds writes:
 > 
 > 
 > On Sun, 4 Nov 2007, Bart Van Assche wrote:
 > > 
 > > Has it already been decided who will do this audit, and when this
 > > audit will happen ? Has a target date been set when this audit
 > > should be complete, or is the completion of this audit a
 > > requirement for the release of a specific gcc version ?
 > 
 > I am told that the gcc people realized that was indeed a bug
 > (people were able to show problems even in non-threaded
 > environments with mprotect()), and have now fixed it in the current
 > gcc sources. That still leaves the old versions with potential
 > problems, but I think it makes it much less interesting to audit
 > for these things.

We're back-porting the patch to all open branches.  However, this
patch only affects one paticular case where gcc introduces a data
race; we're sure there are others not fixed.

Andrew.

-- 
Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, UK
Registered in England and Wales No. 3798903
-
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:
Re: Is gcc thread-unsafe?, Bart Van Assche, (Fri Oct 26, 10:40 am)
Re: Is gcc thread-unsafe?, Linus Torvalds, (Fri Oct 26, 11:27 am)
Re: Is gcc thread-unsafe?, Linus Torvalds, (Fri Oct 26, 12:28 pm)
Re: Is gcc thread-unsafe?, Bart Van Assche, (Fri Oct 26, 1:07 pm)
Re: Is gcc thread-unsafe?, Alan Cox, (Fri Oct 26, 2:08 pm)
Re: Is gcc thread-unsafe?, Andi Kleen, (Fri Oct 26, 4:39 pm)
Re: Is gcc thread-unsafe?, Linus Torvalds, (Fri Oct 26, 2:14 pm)
Re: Is gcc thread-unsafe?, Andrew Haley, (Fri Oct 26, 1:12 pm)
Re: Is gcc thread-unsafe?, Linus Torvalds, (Fri Oct 26, 1:25 pm)
Re: Is gcc thread-unsafe?, Linus Torvalds, (Fri Oct 26, 11:09 am)
Re: Is gcc thread-unsafe?, Giacomo Catenazzi, (Fri Oct 26, 5:45 pm)
Re: Is gcc thread-unsafe?, Linus Torvalds, (Fri Oct 26, 6:24 pm)
Re: Is gcc thread-unsafe?, Andrew Haley, (Fri Oct 26, 11:34 am)
RE: Is gcc thread-unsafe?, David Schwartz, (Fri Oct 26, 2:06 pm)
RE: Is gcc thread-unsafe?, Andrew Haley, (Tue Oct 30, 6:20 am)
Re: Is gcc thread-unsafe?, Bart Van Assche, (Fri Nov 2, 11:29 am)
RE: Is gcc thread-unsafe?, David Schwartz, (Fri Nov 2, 1:18 pm)
Re: Is gcc thread-unsafe?, Andrew Haley, (Fri Nov 2, 11:38 am)
Re: Is gcc thread-unsafe?, Bart Van Assche, (Sun Nov 4, 11:13 am)
Re: Is gcc thread-unsafe?, Linus Torvalds, (Sun Nov 4, 1:45 pm)
Re: Is gcc thread-unsafe?, Bart Van Assche, (Sun Nov 4, 2:06 pm)
Re: Is gcc thread-unsafe?, Andrew Haley, (Sun Nov 4, 1:58 pm)