Today's RELENG_5_4 and 'lock cmpxchgl'

[Marc Olzheim]

On Tue, Jul 19, 2005 at 01:53:14PM +0200, Marc Olzheim wrote:
> On Fri, Jul 15, 2005 at 08:05:23AM -0400, Kris Kennaway wrote:
> > > Ok, even non-SMP 7-CURRENT crashes on it, so I do not believe that I'm
> > > the only one seeing this...
> > 
> > You're not..as noted, it's been widely reported.
> 
> Could you give me any pointers to where this has been discussed before ?
> 
> Would placing all of the ptsopen() and ptcclose() code under a giant
> lock help ? Or is the problem somewhere else ?

Ah, nevermind, it already operates under GIANT, so something else is
molesting the tty's t_line array. Perhaps some kind of use after free
issue ?

Marc
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20050719/31b93f81/attachment.bin