On Sun, 16 Dec 2007 21:20:57 +0300
Evgeniy Polyakov <[EMAIL PROTECTED]> wrote:
> On Sun, Dec 16, 2007 at 07:55:55PM +0200, Meelis Roos ([EMAIL PROTECTED])
> wrote:
> > Just got this trace from current 2.6.24-rc5+git running on 32-bit ppc
> > (PReP subarch, tulip NIC's) during apt-get update (logged in via ssh so
> > also ssh traffic):
> >
> > ------------[ cut here ]------------
> > Badness at net/core/dev.c:2199
>
> Please test attached patch.
> If I understood ltulip correctly, it is posible, that number of entries
> can be higher than requested budget. When work_done is equal to
> budget-1, the last skb has to be processed, after 154'th line
> work_done will become equal to budget and thus loop has to break,
> check on the same 154 line will become false, but work_done will be
> increased nevertheless, which will make work_done being equal to
> budget+1 at exit, which will fire warning you saw.
>
> Signed-off-by: Evgeniy Polyakov <[EMAIL PROTECTED]>
>
> diff --git a/drivers/net/tulip/interrupt.c b/drivers/net/tulip/interrupt.c
> index 3653314..9e0e97a 100644
> --- a/drivers/net/tulip/interrupt.c
> +++ b/drivers/net/tulip/interrupt.c
> @@ -151,8 +151,9 @@ int tulip_poll(struct napi_struct *napi, int budget)
> if (tulip_debug > 5)
> printk(KERN_DEBUG "%s: In tulip_rx(), entry
> %d %8.8x.\n",
> dev->name, entry, status);
> - if (work_done++ >= budget)
> + if (work_done >= budget)
> goto not_done;
> + work_done++;
>
> if ((status & 0x38008300) != 0x0300) {
> if ((status & 0x38000300) != 0x0300) {
>
>
I already sendout a correct patch last week. It should pre-increment.
--
Stephen Hemminger <[EMAIL PROTECTED]>
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