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Re: CVS commit: src/sys/netinet
On Sun, Nov 09, 2008 at 06:35:33PM +0100, Christoph Egger wrote:
> > Log Message:
> > Fix kern/39769: race condition in TCP timers
> > When a TCP timer is disarmed (with callout_stop()) in the general case
> > callout_invoking() isn't checked, so the timer handler could be called run
> > when the current interrupt handler exits, athough the timer is disarmed.
> > This case cause bad things like TCPT_REXMT and TCPT_PERSIST being both
> > pending,
> > causing a panic (see the PR for details).
> > Close the issue by aborting the handler if the timer is not
> > callout_expired().
> > (the EXPIRED flag being cleared by callout_stop()).
>
> Does this also fix PR 39655 (the TCP part) ?
That should have been fixed by the last commits I made to tcp_subr.c.
Do you still see the problem?
Andrew
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