On Tue, 2013-06-18 at 05:52 -0400, Jun Chen wrote:
> >
> There are many warning for tcp_recvmsg before this crash. I can't find
> other memory warning in the logs, but I'm not sure whether there are
> memory issues because of the length limitation of saved logs. I think
> this logs will give you m
On Mon, 2013-06-17 at 06:21 -0700, Eric Dumazet wrote:
> On Mon, 2013-06-17 at 14:52 -0400, Jun Chen wrote:
> > On Mon, 2013-06-17 at 03:29 -0700, Eric Dumazet wrote:
> > > On Mon, 2013-06-17 at 13:29 -0400, Jun Chen wrote:
> > > > >
> > > > hi,
> > > > When the condition of tcp_win_from_space(skb
On Mon, 2013-06-17 at 14:52 -0400, Jun Chen wrote:
> On Mon, 2013-06-17 at 03:29 -0700, Eric Dumazet wrote:
> > On Mon, 2013-06-17 at 13:29 -0400, Jun Chen wrote:
> > > >
> > > hi,
> > > When the condition of tcp_win_from_space(skb->truesize) > skb->len is
> > > true but the before(start, TCP_SKB_
On Mon, 2013-06-17 at 03:29 -0700, Eric Dumazet wrote:
> On Mon, 2013-06-17 at 13:29 -0400, Jun Chen wrote:
> > >
> > hi,
> > When the condition of tcp_win_from_space(skb->truesize) > skb->len is
> > true but the before(start, TCP_SKB_CB(skb)->seq) is also true, the final
> > condition will be tru
On Mon, 2013-06-17 at 13:29 -0400, Jun Chen wrote:
> >
> hi,
> When the condition of tcp_win_from_space(skb->truesize) > skb->len is
> true but the before(start, TCP_SKB_CB(skb)->seq) is also true, the final
> condition will be true. The follow line:
> int offset = start - TCP_SKB_CB(skb)->seq;
>
On Mon, 2013-06-17 at 01:15 -0700, Eric Dumazet wrote:
> On Mon, 2013-06-17 at 10:18 -0400, Jun Chen wrote:
> > When search the first skb to collapse,the condition of overlap to the next
> > one have been
> > reached,but the start is less than TCP_SKB_CB(skb)->seq at this time, then
> > followed
On Mon, 2013-06-17 at 10:18 -0400, Jun Chen wrote:
> When search the first skb to collapse,the condition of overlap to the next
> one have been
> reached,but the start is less than TCP_SKB_CB(skb)->seq at this time, then
> followed process
> will trigger the BUG_ON of the offset(start - TCP_SKB_C
When search the first skb to collapse,the condition of overlap to the next one
have been
reached,but the start is less than TCP_SKB_CB(skb)->seq at this time, then
followed process
will trigger the BUG_ON of the offset(start - TCP_SKB_CB(skb)->seq).
So this patch add one check (! before(start,TC
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