On Mon, Dec 5, 2011 at 14:44, Chuck Burns <brea...@gmail.com> wrote: > freebeast dumped core - see /var/crash/vmcore.0 > Sun Dec 4 14:58:49 CST 2011 > FreeBSD freebeast 10.0-CURRENT FreeBSD 10.0-CURRENT #4 r228221: Sat > Dec 3 09:10:37 CST 2011 > toor@freebeast:/usr/obj/usr/src/sys/GENERIC amd64 > panic: > .. > #9 0xffffffff8092f692 in node_free (ni=0xffffff8003565000) > at ieee80211_ratectl.h:84 > #10 0xffffffff8071634b in urtw_free_data_list (sc=Variable "sc" is not > available. > ) > at /usr/src/sys/dev/usb/wlan/if_urtw.c:989 > #11 0xffffffff8071bf75 in urtw_detach (dev=0xfffffe0005b22a00) > at /usr/src/sys/dev/usb/wlan/if_urtw.c:957 > #12 0xffffffff80868d54 in device_detach (dev=0xfffffe0005b22a00) > at device_if.h:214 > #13 0xffffffff806df6a8 in usb_detach_device (udev=0xfffffe0005b19000, > iface_index=32 ' ', flag=Variable "flag" is not available. > ) at /usr/src/sys/dev/usb/usb_device.c:1062 > #14 0xffffffff806dffc4 in usb_unconfigure (udev=0xfffffe0005b19000, > flag=Variable "flag" is not available.
ni/vap does no longer exist at that point because it has been free'd before. How about attached patch? -- Bernhard
Index: sys/dev/usb/wlan/if_urtw.c =================================================================== --- sys/dev/usb/wlan/if_urtw.c (revision 228275) +++ sys/dev/usb/wlan/if_urtw.c (working copy) @@ -939,11 +939,11 @@ urtw_detach(device_t dev) usbd_transfer_unsetup(sc->sc_xfer, (sc->sc_flags & URTW_RTL8187B) ? URTW_8187B_N_XFERS : URTW_8187L_N_XFERS); - ieee80211_ifdetach(ic); urtw_free_tx_data_list(sc); urtw_free_rx_data_list(sc); + ieee80211_ifdetach(ic); if_free(ifp); mtx_destroy(&sc->sc_mtx);
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