diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/netinet/tcp_syncache.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/netinet/tcp_syncache.c b/sys/netinet/tcp_syncache.c index 0ef2f3d..a261d21 100644 --- a/sys/netinet/tcp_syncache.c +++ b/sys/netinet/tcp_syncache.c @@ -372,19 +372,25 @@ syncache_timer(xslot) if (ticks < nsc->sc_rxttime) break; sc = nsc; - nsc = TAILQ_NEXT(sc, sc_timerq); inp = sc->sc_tp->t_inpcb; INP_LOCK(inp); if (slot == SYNCACHE_MAXREXMTS || slot >= tcp_syncache.rexmt_limit || inp->inp_gencnt != sc->sc_inp_gencnt) { + nsc = TAILQ_NEXT(sc, sc_timerq); syncache_drop(sc, NULL); tcpstat.tcps_sc_stale++; INP_UNLOCK(inp); continue; } + /* + * syncache_respond() may call back into the syncache to + * to modify another entry, so do not obtain the next + * entry on the timer chain until it has completed. + */ (void) syncache_respond(sc, NULL); INP_UNLOCK(inp); + nsc = TAILQ_NEXT(sc, sc_timerq); tcpstat.tcps_sc_retransmitted++; TAILQ_REMOVE(&tcp_syncache.timerq[slot], sc, sc_timerq); SYNCACHE_TIMEOUT(sc, slot + 1); |
