Not sure what code you created this from, but its not the new driver, things have been reorganized and I do not believe this issue exists. Please test with the latest.
Jack On Mon, Nov 29, 2010 at 10:26 AM, Eugene Grosbein <eu...@eg.sd.rdtc.ru>wrote: > On Mon, Nov 29, 2010 at 09:54:55AM -0800, Jack Vogel wrote: > > > Thanks for reporting that, will see it gets fixed! > > More serious problem. I had experienced kernel panics for two em(4)-based > heavy loaded routers. I've checked PR database and found this PR: > > http://www.freebsd.org/cgi/query-pr.cgi?pr=150920 > > I've found the same lack of NULL pointer check in em(4), > applied following patch to if_em.c and panics have gone. > It seems for me that new driver code still has this problem, > now this code resides inside em_rx_discard() function. > Please take a look. > > --- if_em.c.orig 2010-11-02 15:45:56.000000000 +0600 > +++ if_em.c 2010-11-08 14:24:46.000000000 +0600 > @@ -4181,9 +4181,11 @@ > ifp->if_ierrors++; > /* Reuse loaded DMA map and just update mbuf chain > */ > mp = rxr->rx_buffers[i].m_head; > + if(mp) { > mp->m_len = mp->m_pkthdr.len = MCLBYTES; > mp->m_data = mp->m_ext.ext_buf; > mp->m_next = NULL; > + } > if (adapter->max_frame_size <= > (MCLBYTES - ETHER_ALIGN)) > m_adj(mp, ETHER_ALIGN); > > > Eugene Grosbein > _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
