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From: Tomasz Grobelny <>
To: Roland McGrath <>
Cc: Ingo Molnar <>, Thomas Gleixner <>,
	Andrew Morton <>,
	Linus Torvalds <>,
Subject: Re: [PATCH] x86 tls prevent_tail_call
Date: Wed, 27 Feb 2008 20:59:40 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <20080227073821.0C34C2700FD@magilla.localdomain>

Dnia Wednesday 27 of February 2008, Roland McGrath napisał:
> > i'm wondering, have you seen this happen in practice? We use
> > sys_set_thread_area() for every new task started up. I guess we havent
> > seen problems in the field yet because this early during startup tasks
> > do not normally receive signals? (or if they do they are fatal and no
> > user signal context is used.)
> Tomasz saw it.  I don't know what compiler or exact options to it he used.
VMware image from 
demonstrates the problem. I didn't play with compiler options myself but used (rev. 
1.129) as basis for my build.
Tomasz Grobelny

      reply	other threads:[~2008-02-27 20:12 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-26 21:00 Roland McGrath
2008-02-27  7:26 ` Ingo Molnar
2008-02-27  7:38   ` Roland McGrath
2008-02-27 19:59     ` Tomasz Grobelny [this message]

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