On Tue, Dec 20, 2016 at 10:17 AM, Dave Jones <da...@codemonkey.org.uk> wrote: > On Mon, Dec 19, 2016 at 08:36:23PM -0500, David Miller wrote: > > From: Dave Jones <da...@codemonkey.org.uk> > > Date: Mon, 19 Dec 2016 19:40:13 -0500 > > > > > On Mon, Dec 19, 2016 at 07:31:44PM -0500, Dave Jones wrote: > > > > > > > Unfortunately, this made no difference. I spent some time today > trying > > > > to make a better reproducer, but failed. I'll revisit again tomorrow. > > > > > > > > Maybe I need >1 process/thread to trigger this. That would explain > why > > > > I can trigger it with Trinity. > > > > > > scratch that last part, I finally just repro'd it with a single process. > > > > Thanks for the info, I'll try to think about this some more. > > I threw in some debug printks right before that BUG_ON. > it's always this: > > skb->len=31 skb->data_len=0 offset:30 total_len:9
Clearly we fail because 30 > 31 - 2, seems 'offset' is not correct here, off-by-one?
