(gdb) p *m $2 = {m_hdr = {mh_next = 0x0, mh_nextpkt = 0x0, mh_data = 0xfffffe82333c1d98 "", mh_owner = 0x0, mh_len = 75, mh_flags = 2, mh_paddr = 9449511936, mh_type = 2}, M_dat = {MH = {MH_pkthdr = {_rcvif = {ctx = 0x11610ac00000000, index = 0}, tags = {slh_first = 0x0}, len = 75, csum_flags = 0, csum_data = 0, segsz = 0, pattr_class = 0x0, pattr_hdr = 0x0, pattr_af = 0}, MH_dat = {MH_ext = {ext_ref = 0xfffffe82333c1c00, ext_storage = { ext_refcnt = 0, ext_flags = 0, ext_buf = 0x0, ext_free = 0x0, ext_arg = 0x0, ext_size = 0, ext_un = {extun_paddr = 0, extun_pgs = { 0x0 }}}}, MH_databuf = "\000\034<3\202\376\377\377", '\000' ...}}, M_databuf = "\000\000\000\000¬\020\026\001\000\000\000\000\000\000\000\000K", '\000' , "\034<3\202\376\377\377", '\000' ...}} (gdb) bt #0 0xffffffff80119d16 in cpu_reboot (howto=howto@entry=260, bootstr=bootstr@entry=0x0) at /usr/src/sys/arch/amd64/amd64/machdep.c:671 #1 0xffffffff8062fef6 in vpanic (fmt=0xffffffff80b2fa70 "kernel %sassertion \"%s\" failed: file \"%s\", line %d ", ap=ap@entry=0xfffffe810f0bd5f8) at /usr/src/sys/kern/subr_prf.c:342 #2 0xffffffff80848108 in kern_assert (fmt=fmt@entry=0xffffffff80b2fa70 "kernel %sassertion \"%s\" failed: file \"%s\", line %d ") at /usr/src/sys/lib/libkern/kern_assert.c:51 #3 0xffffffff80351879 in ieee80211_send_probereq (ni=0xfffffe8233e7c690, sa=sa@entry=0xffff8000106b55d0 "", da=, bssid=0xffffffff80ae2472 "\377\377\377\377\377\377lla_rt_output", ssid=ssid@entry=0xffff8000106b5e70 "not-for-you", ssidlen=, optie=0xfffffe8235efefd8, optielen=22) at /usr/src/sys/net80211/ieee80211_output.c:1347 #4 0xffffffff8034c5d1 in ieee80211_probe_curchan (ic=ic@entry=0xffff8000106b53d8, force=force@entry=0) at /usr/src/sys/net80211/ieee80211_node.c:388 #5 0xffffffff8035405f in ieee80211_newstate (ic=0xffff8000106b53d8, nstate=IEEE80211_S_SCAN, arg=-1) at /usr/src/sys/net80211/ieee80211_proto.c:1001 #6 0xffffffff801d16da in iwn_newstate (ic=0xffff8000106b53d8, nstate=IEEE80211_S_SCAN, arg=-1) at /usr/src/sys/dev/pci/if_iwn.c:1914 #7 0xffffffff8034e29c in ieee80211_next_scan (ic=ic@entry=0xffff8000106b53d8) at /usr/src/sys/net80211/ieee80211_node.c:364 #8 0xffffffff8034e3e8 in ieee80211_begin_scan (ic=ic@entry=0xffff8000106b53d8, reset=reset@entry=-1) at /usr/src/sys/net80211/ieee80211_node.c:328 #9 0xffffffff80354042 in ieee80211_newstate (ic=0xffff8000106b53d8, nstate=IEEE80211_S_SCAN, arg=-1) at /usr/src/sys/net80211/ieee80211_proto.c:992 #10 0xffffffff801d16da in iwn_newstate (ic=0xffff8000106b53d8, nstate=IEEE80211_S_SCAN, arg=-1) at /usr/src/sys/dev/pci/if_iwn.c:1914 #11 0xffffffff80349294 in ieee80211_ioctl_set80211 (cmd=2149607924, ireq=0xfffffe810f0bdde0, ic=0xffff8000106b53d8) at /usr/src/sys/net80211/ieee80211_ioctl.c:2435 #12 ieee80211_ioctl (ic=ic@entry=0xffff8000106b53d8, cmd=cmd@entry=2149607924, data=data@entry=0xfffffe810f0bdde0) at /usr/src/sys/net80211/ieee80211_ioctl.c:2623 #13 0xffffffff801d813a in iwn_ioctl (ifp=0xffff8000106b5008, cmd=2149607924, data=0xfffffe810f0bdde0) at /usr/src/sys/dev/pci/if_iwn.c:3220 #14 0xffffffff806c4c0f in doifioctl (so=0xfffffe8234bd4db0, cmd=2149607924, data=0xfffffe810f0bdde0, l=0xfffffe8234cf14e0) at /usr/src/sys/net/if.c:2591 #15 0xffffffff80647fe8 in soo_ioctl (fp=, cmd=2149607924, data=0xfffffe810f0bdde0) at /usr/src/sys/kern/sys_socket.c:202 #16 0xffffffff8063c3a4 in sys_ioctl (l=, uap=0xfffffe810f0bdf00, retval=) at /usr/src/sys/kern/sys_generic.c:681 #17 0xffffffff8013f2ae in sy_call (rval=0xfffffe810f0bdeb0, uap=0xfffffe810f0bdf00, l=0xfffffe8234cf14e0, sy=0xffffffff80cf76b0 ) at /usr/src/sys/sys/syscallvar.h:65 #18 sy_invoke (code=54, rval=0xfffffe810f0bdeb0, uap=0xfffffe810f0bdf00, l=0xfffffe8234cf14e0, sy=0xffffffff80cf76b0 ) at /usr/src/sys/sys/syscallvar.h:94 #19 syscall (frame=0xfffffe810f0bdf00) at /usr/src/sys/arch/x86/x86/syscall.c:156 #20 0xffffffff80100751 in Xsyscall () savecore: reboot after panic: panic: kernel diagnostic assertion "M_GETCTX(m, struct ieee80211_node *) == NULL" failed: file "/usr/src/sys/net80211/ieee80211_output.c", line 1347