Messages in this thread | | | Date | Wed, 08 Jun 2005 16:45:05 +0400 | From | "Eugeny S. Mints" <> | Subject | Re: race in usbnet.c in full RT |
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Steven Rostedt wrote: > On Wed, 2005-06-08 at 12:34 +0200, Ingo Molnar wrote: > >>* Eugeny S. Mints <emints@ru.mvista.com> wrote: >> >> >>>seems there is a race in drivers/net/usbnet.c in full RT mode. To be >>>honest I haven't hardly checked this on the latest kernel and latest >>>RT patch but just took a look at usbnet.c and latest RT patch and >>>haven't observed any related changes. >> >>thanks, i've applied your patch to my tree. Note that your patch is >>specific to the -RT kernel (both in terms of semantics and in term of >>API dependence), so it does not make any sense to apply it upstream. >>David, please ignore it. >> > > > Is this action only take place on the same CPU, or is this also an SMP > problem? I would think if this is a race with full RT, that this may > also be a race with SMP, unless the race is guaranteed to always happen > on the same CPU. Then this is only a RT problem. thanks, good point. looks like it could be SMP problem but probably David is able to say it for sure as usb host code expert. David? Eugeny > > -- Steve > > > >
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