Author: vmaffione Date: Mon Jul 1 20:37:35 2019 New Revision: 349581 URL: https://svnweb.freebsd.org/changeset/base/349581
Log: netmap: fix two panics with emulated adapter This patch fixes 2 panics. The first one is due to the current VNET not being set in the emulated adapter transmission path. The second one is caused by the M_PKTHDR flag not being set when preallocated mbufs are recycled in the transmit path. Submitted by: aleksandr.fedo...@itglobal.com Reviewed by: vmaffione MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20824 Modified: head/sys/dev/netmap/netmap_freebsd.c Modified: head/sys/dev/netmap/netmap_freebsd.c ============================================================================== --- head/sys/dev/netmap/netmap_freebsd.c Mon Jul 1 17:05:41 2019 (r349580) +++ head/sys/dev/netmap/netmap_freebsd.c Mon Jul 1 20:37:35 2019 (r349581) @@ -444,6 +444,7 @@ nm_os_generic_xmit_frame(struct nm_os_gen_arg *a) m->m_ext.ext_size = len; #endif /* __FreeBSD_version >= 1100000 */ + m->m_flags |= M_PKTHDR; m->m_len = m->m_pkthdr.len = len; /* mbuf refcnt is not contended, no need to use atomic @@ -452,7 +453,9 @@ nm_os_generic_xmit_frame(struct nm_os_gen_arg *a) M_HASHTYPE_SET(m, M_HASHTYPE_OPAQUE); m->m_pkthdr.flowid = a->ring_nr; m->m_pkthdr.rcvif = ifp; /* used for tx notification */ + CURVNET_SET(ifp->if_vnet); ret = NA(ifp)->if_transmit(ifp, m); + CURVNET_RESTORE(); return ret ? -1 : 0; } _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
