I make the FreeBSD 14.0-ALPHA1 box act as the nat gateway for my ADSL at home.
It seems a lock order bug cause the network interface down and up ?
ppp.conf
rc.conf
log
/usr/src/sys/net/if_tuntap.c:1602
/usr/src/sys/net/if_tuntap.c:1300
It seems a lock order bug cause the network interface down and up ?
ppp.conf
Code:
default:
set log Phase Chat LCP IPCP CCP tun command
set device PPPoE:igb0
set authname username
set authkey passwd
add default HISADDR
enable lqr
enable dns
set mru 1492rc.conf
Code:
ppp_enable="YES"
ppp_program="/usr/sbin/ppp" # Path to user-ppp program.
ppp_mode="auto" # Choice of "auto", "ddial", "direct" or "dedicated".
ppp_nat="YES" # Use PPP's internal network address translation or NO.
ppp_profile="default" # Which profile to use from /etc/ppp/ppp.conf.
Code:
root@FBSD14 /root # dmesg
tun0: link state changed to DOWN
tun0: link state changed to UP
lock order reversal: (sleepable after non-sleepable)
1st 0xfffff8000c25c088 tun_mtx (tun_mtx, sleep mutex) @ /usr/src/sys/net/if_tuntap.c:1602
2nd 0xffffffff81a940d8 tun_ioctl (tun_ioctl, sx) @ /usr/src/sys/net/if_tuntap.c:1300
lock order tun_ioctl -> tun_mtx established at:
#0 0xffffffff80bbfd9a at witness_checkorder+0x30a
#1 0xffffffff80b27885 at __mtx_lock_flags+0x95
#2 0xffffffff80c8df48 at tuninit+0x48
#3 0xffffffff80c8d640 at tunifioctl+0x70
#4 0xffffffff80d6bed6 at in6_update_ifa+0x816
#5 0xffffffff80d6b01f at in6_addifaddr+0x2f
#6 0xffffffff80d6af00 at in6_control_ioctl+0x8f0
#7 0xffffffff80c7ec70 at ifioctl+0x940
#8 0xffffffff80bc6366 at kern_ioctl+0x286
#9 0xffffffff80bc6072 at sys_ioctl+0x152
#10 0xffffffff8104a398 at amd64_syscall+0x138
#11 0xffffffff8101c35b at fast_syscall_common+0xf8
lock order tun_mtx -> tun_ioctl attempted at:
#0 0xffffffff80bc064e at witness_checkorder+0xbbe
#1 0xffffffff80b58440 at _sx_xlock+0x60
#2 0xffffffff80c8d601 at tunifioctl+0x31
#3 0xffffffff80c7cb9f at ifhwioctl+0x80f
#4 0xffffffff80c8c476 at tunioctl+0x616
#5 0xffffffff809d6de2 at devfs_ioctl+0xd2
#6 0xffffffff80c59182 at vn_ioctl+0xc2
#7 0xffffffff809d74be at devfs_ioctl_f+0x1e
#8 0xffffffff80bc6366 at kern_ioctl+0x286
#9 0xffffffff80bc6072 at sys_ioctl+0x152
#10 0xffffffff8104a398 at amd64_syscall+0x138
#11 0xffffffff8101c35b at fast_syscall_common+0xf8
tun1: link state changed to UP
igb1: link state changed to DOWN
igb1: link state changed to UP
igb1: link state changed to DOWN
igb1: link state changed to UP/usr/src/sys/net/if_tuntap.c:1602
Code:
1592 switch (cmd) {
1593 case TUNGIFNAME:
1594 ifrp = (struct ifreq *)data;
1595 strlcpy(ifrp->ifr_name, TUN2IFP(tp)->if_xname, IFNAMSIZ);
1596
1597 return (0);
1598 case TUNSIFINFO:
1599 tunp = (struct tuninfo *)data;
1600 if (TUN2IFP(tp)->if_type != tunp->type)
1601 return (EPROTOTYPE);
1602 TUN_LOCK(tp);
1603 if (TUN2IFP(tp)->if_mtu != tunp->mtu) {
1604 strlcpy(ifr.ifr_name, if_name(TUN2IFP(tp)), IFNAMSIZ);
1605 ifr.ifr_mtu = tunp->mtu;
1606 CURVNET_SET(TUN2IFP(tp)->if_vnet);
1607 error = ifhwioctl(SIOCSIFMTU, TUN2IFP(tp),
1608 (caddr_t)&ifr, td);
1609 CURVNET_RESTORE();
1610 if (error) {
1611 TUN_UNLOCK(tp);
1612 return (error);
1613 }
1614 }
1615 TUN2IFP(tp)->if_baudrate = tunp->baudrate;
1616 TUN_UNLOCK(tp);
1617 break;/usr/src/sys/net/if_tuntap.c:1300
Code:
1286 /*
1287 * Process an ioctl request.
1288 */
1289 static int
1290 tunifioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1291 {
1292 struct ifreq *ifr = (struct ifreq *)data;
1293 struct tuntap_softc *tp;
1294 struct ifstat *ifs;
1295 struct ifmediareq *ifmr;
1296 int dummy, error = 0;
1297 bool l2tun;
1298
1299 ifmr = NULL;
1300 sx_xlock(&tun_ioctl_sx);
1301 tp = ifp->if_softc;
1302 if (tp == NULL) {
1303 error = ENXIO;
1304 goto bad;
1305 }
1306 l2tun = (tp->tun_flags & TUN_L2) != 0;
1307 switch(cmd) {
1308 case SIOCGIFSTATUS:
1309 ifs = (struct ifstat *)data;
1310 TUN_LOCK(tp);
1311 if (tp->tun_pid)
1312 snprintf(ifs->ascii, sizeof(ifs->ascii),
1313 "\tOpened by PID %d\n", tp->tun_pid);
1314 else
1315 ifs->ascii[0] = '\0';
1316 TUN_UNLOCK(tp);
1317 break;
