Re: kern/47739: tmpfs panic: kernel diagnostic assertion "(node)->tn_spec.tn_dir.tn_readdir_lastp == NULL..."

To: kern-bug-people%netbsd.org@localhost,gnats-admin%netbsd.org@localhost,netbsd-bugs%netbsd.org@localhost,Thomas Klausner <wiz%NetBSD.org@localhost>
Subject: Re: kern/47739: tmpfs panic: kernel diagnostic assertion "(node)->tn_spec.tn_dir.tn_readdir_lastp == NULL..."
From: Thomas Klausner <wiz%NetBSD.org@localhost>
Date: Mon, 2 Sep 2013 07:05:01 +0000 (UTC)
The following reply was made to PR kern/47739; it has been noted by GNATS.

From: Thomas Klausner <wiz%NetBSD.org@localhost>
To: NetBSD bugtracking <gnats-bugs%NetBSD.org@localhost>
Cc: 
Subject: Re: kern/47739: tmpfs panic: kernel diagnostic assertion
 "(node)->tn_spec.tn_dir.tn_readdir_lastp == NULL..."
Date: Mon, 2 Sep 2013 09:00:18 +0200

 Completely unscientifically: I feel that with the patch applied I see
 less panics.
 
 I did have one last night again, dmesg after boot starts with:
 
  EXIT 6 0
 WARNIWNAGR:N INSGP LS PNWLOA TRN NOLITNO GLWO WESERPRELEDD  OONNNO  TTT 
RRLAAOPPW E EREXEIT D6  O0X
 I nTTe RtA6P d :Ev
 XW_IArTeRa6N dI0iN
 rG:+ 0SxP2L1 bN
 OT LOWERED ONW ATRRNAIPN GE:X ISTP L6W  AN0O
 N LIONWGE:R ESDP LON  NTWROAATRP  NLEIOXWIGTE: R6  E0PDL  NOON LO WTERRAEPW  
AEOXNN IITTRN AG6P:   0ES
 XPILT  N6O T0 
 LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 W0
 ARNING: WSARPNLI NNGOW:T A SNLPIOLN WNE:O RTSE PDLL O OWNNET  RTLERDAW PEORNE 
EDT XOANPI TRAP  TE XXII6TT  60 6
 0 
 0
 WARNING: SPL WNAORTN ILNOGWW:AE RRSENDIL  ONNNGO :TT  RSALPPOL WE EXNRIETTD   
LO6NO WTE
 RAP RXIET D6  W0OANR NTIRNAG:P  SEPXLW ANRTO IT6 G L:0O 
 WSPELR ENDT  OLNO WTERARPE D ONE XTIWRTAAPR 6NE I0XNI
 GT: 6  S0P
 L NOT LOWWEARRENDI NG:W NSA PRTNLI RNNAGOPT   SLEPOXWIE RTNE ODT6   O0ONW 
 ERRAEPD  EOXNI TT R6A P0 
 EXIT 6 0
 WARNWIANRGN:IA NRSGN:PI NLSG:P  LS PNNLOO TNT O LTLO OWWOEWERERREDE DOD NO 
OTNR  ATTPRR AAEXIPPT  E E6I X0TI
  T6  06
  0
 WARNING: SPLWNAWORATN NILINOGWWG:EA: RR SNEPIDPLN  GONN:OO  TTTSRP LALLOPO W 
WENEERORXETDI   T 6 O0NLO 
 OSNWY SECTARRLELAD P 1OE1XN8WI  TAT R26NR  IE0NX
 PIGT  :Ef fXSfIPfTLd  9Na6O0 T  60
 OWERED ON TRAP EXIT 6W A0R
 NING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWEARRENDI NOGN :TR AS EXPILT  6WN A0OR
 TN ILNOG: WSEPRLE DN OTO LONW EARRERNA PNO GN:E  TXSRIPALPT   NEO6X  0TL 
 O6W E0R
 ED ON TRAP EXIT 6 0
 WARNING: SWPALR NNIWONAGT:  NLISOPWGLE :RN EOSDP  LLO ONWN OETRR EALDPO  WOENR 
XETIDRT AP EXOINT   6T6 R00A
 
 P EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT W6A RN0I
 NG: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNWNAGR:W IASRGP:NL ISNNPOLT :N  OLTOS WPLEORWEEDR  ENOON  TOT NR 
LATOPWREAEXPRI TEXIT 6  0D
   O0N
  TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WWAARRNWNIAINRNNGIG:N G S:SP PLSL P LNN OONTOT TL LOOOWWEEERREEEDDD  OOONNN T 
TRRTAAPRP EXIT 6  E0X
 PI TE X6I T0 
 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXWITA R6N I0N
 G: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON SYSCALL 22711 -1 EXIT f7b28400 6
 WARNING: SPL NOT LOWERED ON SYSCALL 0 5 EXIT WffAfRfNaIfN8G0:  6S
 PL NOT LOWERED ON TRAP EXITW A6RN IN0GW:A
 RSNPILN GN:O TS PLLO WNEORTE DL OOWNE RTERDA PO NE XSIYTS C6A LWLA R1N54I64N 
-G1: E XSITP Lf bN2O8TW4 A0LR0ON WI6N
 EGR: ESDP LO NNO T LTORWAERPE D EOXNI TT RA6P  EXIT0 
 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWWAERRNEID NOGN:  TSRALP  NEOXTT  6L O0W
 ERED ON TRAP EXIT 6 W
 ARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWWEREAD RONN ITRNP GE:X ITS P6L  0
 NOT LOWERED ON TRAP EXITW AR6N I0sNW
 yGAs:R_N _I_SgeP:tL  dSNeOPTtLsL 3ON0WO(E) R LEaODtW  EON RTERDA PO NE XSIYTS 
C6A L0L
  17186W -A1R5N1I71N2G5W6:8  RSENPXILI GTN: O 0 ST7P
 L  NLOTO WLEORWEEDRE DO NON  TTRRAAPPWE AEIRTXN II6TN  06:  SP0L
  NOT LOWERED ON TRAP EXIT W6A R0N
 ING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWEREWDA RONNI TNAGP :E XSIWPATLR N I6NN OG0T
 :  LSOPWLE RNOTE DL OWOWANER RNTEIRNDAG P:O  NSX PITTR  A6NP O 0TE
  XLIOTW E6R E0D
  ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED AORNNWITANRRGAN:PI  NESGXPI:LT   N6SOP0TL
   LONWERETD  LOO TWRWEARAPER DNE XIONTNG  :6T R0SA
 PPL  NOET XLOIWTE RE6D  O0N
  TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6W WAA0RR
 NNIINNGG: :S PSLP LN ONTO TL OLWOEWnREeERtDE sDd :NOsN y TsSR_Y_AS_PCg 
eAEWtLXdALeTR n 9Nt67 23I050N
  G+-0x16:50 1
 S7P1A2LR5 N6NI8N GET:X I TLS OP0WL E 7RN
 OTE LDO WEORNE DT ROANP  TERXWAIAPT RE NX6II TN0 G6: 
  0S
 PL NOT LOWERED ON TRAP EXIT 6 0
 WARNIWNAGR: NSIPL NNOTG L:O WSERPELD  ONN OTRTAP  LEOXIWTE 6R E0D
  WOANR NTIRNAGP:W  ASERPXNLII TNN GOW:6ATR N S0LP
 NLWGE :RN EODPT L OLNNO OWTTER RALEPOD W EEORXWINATE D T 6N AN0P I
 SNEYGS:ICTA  LS6L  10L
 5  NWEXOIRTN  I4NL0GW OA:7W R
 ENRPILEN GDN: O TSOPLONLW ENRTOERDT A OPNL  OWEWRAEARIPETI D EN6 X: SOPINLT   
T0NR
 6OA TP0  L
 EOXWIETR E6D  0O
 N SYASCRLWNAI RN8N9G4N9:G  :4S  PESLXPI LTN WONA7TOf dNLf IO LNW6GO
 E:WR ESEPDRL E DON OONTN   LTOTRWRAEPAR EED X EIOXTI T 6 T06R
  A0P 
 EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWEREWDA RONINN G: STPRLA PNO TE LXOIWETRED  ON T R0P 
 EXIT 6 0
 WARNING: SPL NOT LOWERED ON SYSCALL W2A8R8N4WI2N A:- R1SNPIL1 N7NG1OT: 5 
L6SO8W EELRX D ON TRIATPN  O0E TX7 I
 LTO W6E R0E
 D ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED OW ATRRNAIPN GE:X ISTP L6  N0O
 T LOWERED OWNA RTNRIANPG :E XSIPTL  6N O0T
  LOWERED ON SYSCALL 80 12 EXIT ffffd9a0 6
 WARNING: SPL WOATR NLIOWE:R ESDP LO NN OTTR ALPO WEEXRIETD  6O N0 
 TRAP EXITW 6 0
 ARNING: SPWLA RNNOINTG :L WOAPWLRE NRNIEONTGD :  LOSOPWNLE  ETDNR OAOTN  T 
LEOAPW IETRXE ITD  66O  N0 
 0T
 RAP EXIT 6 0
 WARNING: SPL NOWTA RLNOIWNEGR:E DS WPOANLR  NNTOIRN GLP:O  EESRPEILDT   ON6  
OT0R
 A P LEOXWIETR E6D  0O
 N TRAP EXIT 6 0W
 AARRNNIINNGG::  SSPPLL  NNOOTT  LLOOWWEERREEDD  OONN  TTRRAAPP  EEXXIITT  66 W 
00
 
 ARNING: SPL NOT LOWEREDWWAARORNNNIIN NGT:GR :S PSPLP  LNE ONXTOI TTL OL6OW 
WE0RE
 ERDE DO NO NT RTARPA PE XEIXTI T6  60 
 0
 WARNING: SPL NWOATR NLIONWG:E RSEPDL  ONONT  LOWTERRAEPD  WOEAXR INTTIRNA GP6: 
E0XSI
 PTL  6 N0O
 T LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT W6A RNI0NA
 GR:N ISNPGL:  NSOPTL  LNOOWTE RLEODW EORNE DT ROANP  TERXAIPT  E6X I0T
  6 0
 WARNING: SPL NOT LOWERED WOANANR INTNIRGNAGP:S  PESLX PINLTO  TN6 LTO  W0LE
 RWEEDR EODN  OTNR ATPR AEPX IETX I6T  06
  0
 WARNING: SPL NOT LOWERWEADR NOINN GT:R SAPPL  WEARXONITT NL GO:W E6S PE0LD
  ONNO TT RLAOPWERED  EOXNI TT R6A P0 
 EWXAIRT N6 I0N
 G: SPWLAR NINNOGT:  LSWPOALW ENNORIEN GD: OOWSNEP LRT ERNDAO PTO  NLEOXTWIRTA 
RPE6D   E0OXN
 I TRATP  6E X0I
 T 6 0
 WARNING: SPWL AORTN ILONWGEWR:AER DNSIPONLG :  TNRAPTPL   LENOXOWITTE  LRO6EW 
DR 
 EODN  OTNR ATR AEPX IETX IT 66  00
 
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNINGW:A RSIPNGL:W ASRNNPOILN TGN :OLT O SLWPOLEW REEOREDD  LOONNW  
ETTRRAAPD P EO XNEI XTT IRAP EXI6T  T06 
  60 
 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 7 0
 WAWRANRINNIGN:G :S PWSLAP RNN OINTNOG T:L  OLSWOPEWLRE ERNEODT   OLONON WT 
ETARRPEA DPE  XOIEN TT XRIATP  60E 
 X0IT
  6 0
 WARNING: SPL NOT LOWERED ONW ATRRNAIPN WE:AX RISTP I6N  0GN
 :O TS PLLO WNEORTEWDAL ROONNWI ENTRR:AE PDS  POXLNI  TNTOR T6A  PL 0OE
 WXERIETD  6O N0 
 TRAP EXIT W6A R0N
 ING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WAWRANRINNIGN:G :WS APSRLNL I NNNOGOTT   LPLOLW ONEWORETER DE LDOO NW OTNRR 
ATDR  OAENP TRAXPI ETE XX6I I0T
  66  00
 
 WARNING: SPL NOT WLAORWNEIRNEGW:D ASOPRNLN  INRNAGPT:   ESXPOILTW  EN6OR TE0 
 LDO WOENR ETDR AOPN  EWTXRIRTN I6 N EG0X:
 I STP L6  N0O
 T LOWERED ON TRAP EXIT W6A R0N
 ING: SPL NOT LOWERED ONWTARRANPI WNAXGRI:NT I SN6PG L:0  
 NSOPLT  NLOTO WLEWERREEDD  OONN  TTRRAPA PE IT E6X 0I
 T 6 0
 WARNING: SPL NOT LOWERED ON WTRAARPN IENXGI:T  6S P0L
  NOT WLAORWNEIRNEWGDA :RO NNSI PNLGR: A NPSO PTLE  XLNIOTTW  E6LRO EWD0 EO
 N ETDR AOPN  ETXRIATP  6E X0I
 WTA R6N I0N
 G: SPL NOT LWOAWRENIRNEGD:  OSNP LT RNAWOPAT R ENLIXONWIGET:R  E6SD P 0LO 
 NN OTTR ALPO WEEXRIETD O6N  0T
 RAP EXIT 6 0
 WARNING: SPL NOT LOWWEARRENDI NOGN:  TSRPALP  NEOXTI TL O6W E0R
 ED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING:W ASNPILN GN:O TS PLLO WNEORTE DL OOWWNAE RRTNEIADNP G O:E X SIPRTL A 
6PN OE0XT
 IT  6L O0W
 ERED OWNA RTNIRNAGP:  ESXPLI TN OT6  LO0WE
 RED ON TRAP EXIT s6y s0c
 all() at WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NWOATR NLIONWGE:R ESDP LONNO TT RLAOWPE REEXDI OTN  6T RA0PW
 AERXNIITN6G :0 
 SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TWRAAPR NEIXINT G6:  0S
 PL NOT LOWERED ON TRAP EXWIATR N6I N0G
 : SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING:W ASRPNLI NNGO:T  SLPOLW ENROT ELDO WOENR ETDR AOPN  ETXRIATP  6X0I
 T 6 0
 WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
 WARNING: SPL NOT LOWEREDW WAORAN ITNNRGIA:P  :SEP XLS IPNTLO  TN6O LT0 OL
 WOEWREERDE DO NO NS YTSRCAAPL LE X6I1T  162  0E
 XIT ffWfAfRdN9IaN0G :6W 
 ASRPNLI NNGO:T S PLL ONWOETR ELDO WOENRE DT ROANP  TERXAIPT  E6X IT0 6
  0
 WARNING: SPL NOT LOWERED ON TRAP EWWXAAIRRTNNIIN6GN :G0 :
  SPLL  NNOOTT  LLOOWWEERREEDD  OONN  STYRSACPA LELX IT0  60  0E
 XIT 0 6
 WARNING: SPL NOT LOWERED ON TRAP EWXWAIATRR NN6II NN0GG
 :  SSPPLL  NNOOT TL OWLAEORRWNEEIDRN EGOD:   OTSRNP PL REANPIO TTE  
XL6IOnTe0Et 
 bR6sEd D:0 s
 OyNs cTaRlAlP+ 0ExXbI5W
 A R6N I-N
 -G s: SsPcLa lNlO TW( nAuLRONbWIeErNR WG3EA9:D0  N)OSINP  N-LT- :R-
  SPALNP  ONEOTXfT I LfTfLO OWd6WE0 aR06E4EDa: D
 O NON c TpTuR1AW1AAP:R  NE IXEnNXdI GTt r :6a  cS e0P0aL
 c kN.O.T. 
 LOWERED ON TRAP EXIT 6 0
 
 So perhaps there are two issues and the suggested patch addresses one
 of them?
  Thomas
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