devc-ser8250 problem

I’m having a little intermittent problem with devc-ser8250 on 6.20A PE SMP
(Dual 1.8 GHz Xeons, 512MB, 3COM 3C905C NIC)

I am trying to develop a character driver for a multi-port VME Bus serial
board and have written a small test application which simply writes a string
out one serial port of the VME Serial Card and is received on COM1 on a
different computer. The VME based computer (PIII850 256 MB) running my devc
driver (devc-mz8300) and the Dual Xeon box is simply running devc-ser8250.
Serial ports on both boxes set to 9600,N,8,1 raw with no hardware/software
handshaking (this is due to legacy configurations of the VME serial board
already being used in the field).

The problem I am seeing is that the Dual Xeon box stops
transmitting.receiving data after some random amount of time (anywhere from
5 minutes to several hours) and all network connections are lost (I have to
slay/restart io-net to access the network).

I have tried using the non-SMP kernel which only extends the amount of time
which passes before the problem occurs.
I have disabled hyper-threading both with and without the SMP kernel which
seems to have a similar effect as using the non-SMP kernel (more time passes
before problem occurs).

I have attached the output from ‘pci -v’. Any ideas are greatly appreciated.

TIA
Brian


begin 666 pci.txt
M"E!#22!V97)S:6]N(" @(#T@,BXQ, H0VQA<W,@(" @(" @(" @/2!"<FED
M9V4@
$AO<W0O4$-)0I696YD;W(@240@(" @(" ](#@P.#9H+"!);G1E;"!#
M;W)P;W)A=&EO;B 1&5V:6-E($E$(" @(" @/2 R-3,Q:"P@.#(X-C @2&]S
M="U(=6(@26YT97)F86-E7T$@0G)I9&=E(“A$4”!M;V1E
0I00TD@:6YD97@@
M(" @(" ](#!H"D-L87-S($-O9&5S(" @(#T@,#8P,# P: I2979I<VEO;B!)
M1" @(" ](#1H"D)U<R!N=6UB97(@(" @(#T@, I$979I8V4@;G5M8F5R(" ]
M(# 1G5N8W1I;VX@;G5M(" @/2 P"E-T871U<R!296<@(" @(#T@83 Y,&@
M0V]M;6%N9"!296<@(" @/2 Q,#9H"DAE861E<B!T>7!E(" @(#T@,&@@4VEN
M9VQE+69U;F-T:6]N"D))4U0@(" @(" @(" @(#T@,&@@0G5I;&0M:6XM<V5L
M9BUT97-T(&YO="!S=7!P;W)T960
3&%T96YC>2!4:6UE<B @/2 P: I#86-H
M92!,:6YE(%-I>F4](#!H( I3=6)S>7-T96T@5F5N9&]R($E$(#T@,3 R.&@*
M4W5B<WES=&5M($E$(" @(" @(" ](&0X: I-87@@3&%T(" @(" @(" ](#!N
M<PI-:6X@1VYT(" @(" @(" ](#!N<PI00TD@26YT(%!I;B @(" ]($Y#“DEN
M=&5R<G5P=”!L:6YE(#T@, I#87!A8FEL:71I97,@4&]I;G1E<B ](&$P: I#
M87!A8FEL:71Y($E$(" @(" @(" ](#)H"D-A<&%B:6QI=&EE<R @(" @(" @
M(#T@,C!H(“T@,68P,# R,3=H”@I#;&%S<R @(" @(" @(" ]($)R:61G92 H
M4$-)+U!#22D5F5N9&]R($E$(" @(" @/2 X,#@V:“P@26YT96P@0V]R<&]R
M871I;VX@“D1E=FEC92!)1” @(” @(#T@,C4S,F@L(#@R.#4P+S@R.#8P($%’
M4"!"<FED9V4
4$-)(&EN9&5X(" @(" @/2 P: I#;&%S<R!#;V1E<R @(" ]
M(# V,#0P,&@*4F5V:7-I;VX@240@(" @/2 T: I"=7,@;G5M8F5R(" @(" ]
M(# *1&5V:6-E(&YU;6)E<B @/2 Q"D9U;F-T:6]N(&YU;2 @(#T@, I3=&%T
M=7,@4F5G(" @(" ](&$P: I#;VUM86YD(%)E9R @(" ](#$P-V@2&5A9&5R
M('1Y<&4@(" @/2 Q:"!3:6YG;&4M9G5N8W1I;VX
0DE35" @(" @(" @(" @
M/2 P:"!"=6EL9"UI;BUS96QF+71E<W0@;F]T(’-U<’!O<G1E9 I,871E;F-Y
M(%1I;65R(" ](#0P: I#86-H92!,:6YE(%-I>F4](#!H( I0<FEM87)Y($)U
M<R!.=6UB97(@(" @(" @/2 P: I396-O;F1A<GD@0G5S($YU;6)E<B @(" @
M/2 Q: I3=6)O<F1I;F%T92!"=7,@3G5M8F5R(" @/2 Q: I396-O;F1A<GD@
M3&%T96YC>2!4:6UE<B @/2 T,&@*22]/($)A<V4@(" @(" @(" @(" @(" @
M(#T@93!H"DDO3R!,:6UI=" @(" @(" @(" @(" @(" ](&4P: I396-O;F1A
M<GD@4W1A=‘5S(" @(" @(" @/2 R,F$P: I-96UO<GD@0F%S92 @(" @(" @
M(" @(" @/2!F8S0P: I-96UO<GD@3&EM:70@(" @(" @(" @(" @/2!F8S4P
M: I0<F5F971C:&%B;&4@365M;W)Y($)A<V4@/2!E.# P: I0<F5F971C:&%B
M;&4@365M;W)Y($QI;6ET/2!E9F8P: I0<F5F971C:&%B;&4@0F%S92!5<’!E
M<B S,B!":71S(" ](#!H"E!R969E=&-H86)L92!,:6UI="!5<’!E<B S,B!"
M:71S(#T@,&@*22]/($)A<V4@57!P97(@,38@0FET<R @(#T@9F9F9F@22]/
M($QI;6ET(%5P<&5R(#$V($)I=’,@(#T@9F9F9F@0G)I9&=E($-O;G1R;VP@
M(" @(" @(" @(#T@,31N<PI00TD@26YT(%!I;B @(" @(" @(" @(" @/2!.
M0PI);G1E<G)U<'0@;&EN92 @(" @(" @(" @/2 P"@I#;&%S<R @(" @(" @
M(" ]($)R:61G92 H4$-)+U!#22D
5F5N9&]R($E$(" @(" @/2 X,#@V:“P@
M26YT96P@0V]R<&]R871I;VX@“D1E=FEC92!)1” @(” @(#T@,C4S,V@L(#@R
M.#8P($AU8B!);G1E<F9A8V5?0B!"<FED9V4
4$-)(&EN9&5X(" @(" @/2 P
M: I#;&%S<R!#;V1E<R @(" ](# V,#0P,&@*4F5V:7-I;VX@240@(" @/2 T
M: I"=7,@;G5M8F5R(" @(" ](# *1&5V:6-E(&YU;6)E<B @/2 R"D9U;F-T
M:6]N(&YU;2 @(#T@, I3=&%T=7,@4F5G(" @(" ](&$P: I#;VUM86YD(%)E
M9R @(" ](#$P-V@2&5A9&5R('1Y<&4@(" @/2 Q:"!3:6YG;&4M9G5N8W1I
M;VX
0DE35" @(" @(" @(" @/2 P:"!"=6EL9"UI;BUS96QF+71E<W0@;F]T
M(’-U<’!O<G1E9 I,871E;F-Y(%1I;65R(" ](#0P: I#86-H92!,:6YE(%-I
M>F4](#!H( I0<FEM87)Y($)U<R!.=6UB97(@(" @(" @/2 P: I396-O;F1A
M<GD@0G5S($YU;6)E<B @(" @/2 R: I3=6)O<F1I;F%T92!"=7,@3G5M8F5R
M(" @/2 S: I396-O;F1A<GD@3&%T96YC>2!4:6UE<B @/2 P: I)+T@0F%S
M92 @(" @(" @(" @(" @(" @/2!F,&@*22]/($QI;6ET(" @(" @(" @(" @
M(" @(#T@,&@*4V5C;VYD87)Y(%-T871U<R @(" @(" @(#T@,C)A,&@*365M
M;W)Y($)A<V4@(" @(" @(" @(" @(#T@9F,Q,&@*365M;W)Y($QI;6ET(" @
M(" @(" @(" @(#T@9F,S,&@*4’)E9F5T8VAA8FQE($UE;6]R>2!“87-E(#T@
M9F9F,&@*4’)E9F5T8VAA8FQE($UE;6]R>2!,:6UI=#T@,&@4’)E9F5T8VAA
M8FQE($)A<V4@57!P97(@,S(@0FET<R @/2 P: I0<F5F971C:&%B;&4@3&EM
M:70@57!P97(@,S(@0FET<R ](#!H"DDO3R!“87-E(%5P<&5R(#$V($)I=’,@
M(” ](&9F9F9H"DDO3R!,:6UI="!5<’!E<B Q-B!":71S(" ](&9F9F9H"D)R
M:61G92!#;VYT<F]L(" @(" @(" @(" ](#9N<PI00TD@26YT(%!I;B @(" @
M(" @(" @(" @/2!.0PI);G1E<G)U<'0@;&EN92 @(" @(" @(" @/2 P"@I#
M;&%S<R @(" @(" @(" ]($)R:61G92 H4$-)+U!#22D
5F5N9&]R($E$(” @
M(" @/2 X,#@V:“P@26YT96P@0V]R<&]R871I;VX@“D1E=FEC92!)1” @(” @
M(#T@,C0T96@L(#@R.# Q0D$O0T$@2’5B($EN=&5R9F%C92!T;R!00TD@0G)I
M9&=E"E!#22!I;F1E>" @(" @(#T@,&@*0VQA<W,@0V]D97,@(" @/2 P-C T
M,#!H"E)E=FES:6]N($E$(" @(#T@-&@*0G5S(&YU;6)E<B @(" @/2 P"D1E
M=FEC92!N=6UB97(@(#T@,S *1G5N8W1I;VX@;G5M(" @/2 P"E-T871U<R!2
M96<@(" @(#T@.#!H"D-O;6UA;F0@4F5G(" @(#T@,3 W: I(96%D97(@=‘EP
M92 @(" ](#%H(%-I;F=L92UF=6YC=&EO;@I"25-4(" @(" @(" @(" ](#!H
M($)U:6QD+6EN+7-E;&8M=&5S="!N;W0@<W5P<&]R=&5D"DQA=&5N8WD@5&EM
M97(@(#T@,&@*0V%C:&4@3&EN92!3:7IE/2 P:" *4’)I;6%R>2!"=7,@3G5M
M8F5R(" @(" @(#T@,&@4V5C;VYD87)Y($)U<R!.=6UB97(@(" @(#T@-&@
M4W5B;W)D:6YA=&4@0G5S($YU;6)E<B @(#T@-&@*4V5C;VYD87)Y($QA=&5N
M8WD@5&EM97(@(#T@-#!H"DDO3R!“87-E(” @(" @(" @(" @(" @(" ](&0P
M: I)+T@3&EM:70@(" @(" @(" @(" @(" @/2!D,&@*4V5C;VYD87)Y(%-T
M871U<R @(" @(" @(#T@,C(X,&@*365M;W)Y($)A<V4@(" @(" @(" @(" @
M(#T@9C0P,&@*365M;W)Y($QI;6ET(" @(" @(" @(" @(#T@9F)F,&@*4’)E
M9F5T8VAA8FQE($UE;6]R>2!“87-E(#T@9F9F,&@*4’)E9F5T8VAA8FQE($UE
M;6]R>2!,:6UI=#T@,&@4’)E9F5T8VAA8FQE($)A<V4@57!P97(@,S(@0FET
M<R @/2 P: I0<F5F971C:&%B;&4@3&EM:70@57!P97(@,S(@0FET<R ](#!H
M"DDO3R!“87-E(%5P<&5R(#$V($)I=’,@(” ](&9F9F9H"DDO3R!,:6UI="!5
M<’!E<B Q-B!":71S(" ](&9F9F9H"D)R:61G92!#;VYT<F]L(" @(" @(" @
M(" ](#9N<PI00TD@26YT(%!I;B @(" @(" @(" @(" @/2!.0PI);G1E<G)U
M<'0@;&EN92 @(" @(" @(" @/2 P"@I#;&%S<R @(" @(" @(" ]($)R:61G
M92 H4$-)+TE302D
5F5N9&]R($E$(” @(" @/2 X,#@V:“P@26YT96P@0V]R
M<&]R871I;VX@“D1E=FEC92!)1” @(” @(#T@,C0T,&@L(#@R.# Q0D$@3%!#
M($EN=&5R9F%C92!"<FED9V4L($E#2#(*4$-)(&EN9&5X(" @(" @/2 P: I#
M;&%S<R!#;V1E<R @(" ](# V,#$P,&@*4F5V:7-I;VX@240@(" @/2 T: I"
M=7,@;G5M8F5R(" @(" ](# *1&5V:6-E(&YU;6)E<B @/2 S,0I&=6YC=&EO
M;B!N=6T@(" ](# *4W1A=‘5S(%)E9R @(" @/2 R.#!H"D-O;6UA;F0@4F5G
M(" @(#T@9F@*2&5A9&5R(‘1Y<&4@(" @/2 P:"!-=6QT:2UF=6YC=&EO;@I"
M25-4(" @(" @(" @(" ](#!H($)U:6QD+6EN+7-E;&8M=&5S="!N;W0@<W5P
M<&]R=&5D"DQA=&5N8WD@5&EM97(@(#T@,&@*0V%C:&4@3&EN92!3:7IE/2 P
M:" *36%X($QA=" @(" @(" @/2 P;G,36EN($=N=" @(" @(" @/2 P;G,
M4$-)($EN="!0:6X@(" @/2!.0PI);G1E<G)U<‘0@;&EN92 ](# “D-L87-S
M(” @(" @(" @(#T@36%S<R!3=&]R86=E(“A)1$4I"E9E;F1O<B!)1” @(" @
M(#T@.# X-F@L($EN=&5L($-O<G!O<F%T:6]N( I$979I8V4@240@(" @(" ]
M(#(T-&)H+" X,C@P,4)!($E$12!#;VYT<F]L;&5R"E!#22!I;F1E>" @(" @
M(#T@,&@0VQA<W,@0V]D97,@(" @/2 P,3 Q.#!H"E)E=FES:6]N($E$(" @
M(#T@-&@0G5S(&YU;6)E<B @(" @/2 P"D1E=FEC92!N=6UB97(@(#T@,S$
M1G5N8W1I;VX@;G5M(" @/2 Q"E-T871U<R!296<@(" @(#T@,C@P: I#;VUM
M86YD(%)E9R @(" ](#5H"DAE861E<B!T>7!E(" @(#T@,&@@4VEN9VQE+69U
M;F-T:6]N"D))4U0@(" @(" @(" @(#T@,&@@0G5I;&0M:6XM<V5L9BUT97-T
M(&YO="!S=7!P;W)T960
3&%T96YC>2!4:6UE<B @/2 P: I#86-H92!,:6YE
M(%-I>F4](#!H( I00TD@24@061D<F5S<R @/2!F9F$P:"!L96YG=&@@,38@
M96YA8FQE9 I3=6)S>7-T96T@5F5N9&]R($E$(#T@,3 R.&@4W5B<WES=&5M
M($E$(" @(" @(" ](&0X: I-87@@3&%T(" @(" @(" ](#!N<PI-:6X@1VYT
M(" @(" @(" ](#!N<PI00TD@26YT(%!I;B @(" ]($Y#“DEN=&5R<G5P=”!L
M:6YE(#T@, H
0VQA<W,@(" @(" @(" @/2!397)I86P@0G5S("A5;FEV97)S
M86P@4V5R:6%L($)U<RD
5F5N9&]R($E$(" @(" @/2 X,#@V:“P@26YT96P@
M0V]R<&]R871I;VX@“D1E=FEC92!)1” @(” @(#T@,C0T,F@L(#@R.# Q0D$O
M0D%-(%530B!#;VYT<F]L;&5R+"!54T(M00I00TD@:6YD97@@(" @(" ](#!H
M"D-L87-S($-O9&5S(" @(#T@,&,P,S P: I2979I<VEO;B!)1" @(" ](#1H
M"D)U<R!N=6UB97(@(" @(#T@, I$979I8V4@;G5M8F5R(" ](#,Q"D9U;F-T
M:6]N(&YU;2 @(#T@,@I3=&%T=7,@4F5G(" @(" ](#(X,&@0V]M;6%N9"!2
M96<@(" @/2 T: I(96%D97(@='EP92 @(" ](#!H(%-I;F=L92UF=6YC=&EO
M;@I"25-4(" @(" @(" @(" ](#!H($)U:6QD+6EN+7-E;&8M=&5S="!N;W0@
M<W5P<&]R=&5D"DQA=&5N8WD@5&EM97(@(#T@,&@0V%C:&4@3&EN92!3:7IE
M/2 P:" 4$-)($E/($%D9’)E<W,@(#T@,&@@;&5N9W1H(#,R(&1I<V%B;&5D
M"E-U8G-Y<W1E;2!696YD;W(@240@/2 Q,#(X: I3=6)S>7-T96T@240@(" @
M(" @(#T@9#AH"DUA>"!,870@(" @(" @(#T@,&YS"DUI;B!’;G0@(" @(" @
M(#T@,&YS"E!#22!);G0@4&EN(" @(#T@24Y4($0
26YT97)R=7!T(&QI;F4@
M/2 Q,0H
0VQA<W,@(" @(" @(" @/2!397)I86P@0G5S("A334)U<RD
5F5N
M9&]R($E$(" @(" @/2 X,#@V:“P@26YT96P@0V]R<&]R871I;VX@“D1E=FEC
M92!)1” @(” @(#T@,C0T,V@L(#@R.# Q0D$O0D%-(%–0G5S($-O;G1R;VQL
M97(*4$-)(&EN9&5X(" @(" @/2 P: I#;&%S<R!#;V1E<R @(" ](#!C,#4P
M,&@*4F5V:7-I;VX@240@(" @/2 T: I"=7,@;G5M8F5R(" @(" ](# *1&5V
M:6-E(&YU;6)E<B @/2 S,0I&=6YC=&EO;B!N=6T@(" ](#,4W1A=‘5S(%)E
M9R @(" @/2 R.#!H"D-O;6UA;F0@4F5G(" @(#T@,6@2&5A9&5R('1Y<&4@
M(" @/2 P:"!3:6YG;&4M9G5N8W1I;VX
0DE35" @(" @(" @(" @/2 P:"!"
M=6EL9"UI;BUS96QF+71E<W0@;F]T(’-U<’!O<G1E9 I,871E;F-Y(%1I;65R
M(" ](#!H"D-A8VAE($QI;F4@4VEZ93T@,&@@“E!#22!)3R!!9&1R97-S(” ]
M(&-C9#!H(&QE;F=T:" Q-B!E;F%B;&5D"E-U8G-Y<W1E;2!696YD;W(@240@
M/2 Q,#(X: I3=6)S>7-T96T@240@(" @(" @(#T@9#AH"DUA>"!,870@(" @
M(" @(#T@,&YS"DUI;B!’;G0@(" @(" @(#T@,&YS"E!#22!);G0@4&EN(" @
M(#T@24Y4($(26YT97)R=7!T(&QI;F4@/2 Q, H0VQA<W,@(" @(" @(" @
M/2!397)I86P@0G5S("A5;FEV97)S86P@4V5R:6%L($)U<RD
5F5N9&]R($E$
M(" @(" @/2 X,#@V:“P@26YT96P@0V]R<&]R871I;VX@“D1E=FEC92!)1” @
M(” @(#T@,C0T-&@L(#@R.# Q0D$O0D%-(%530B!#;VYT<F]L;&5R+"!54T(M
M0@I00TD@:6YD97@@(" @(" ](#!H"D-L87-S($-O9&5S(" @(#T@,&,P,S P
M: I2979I<VEO;B!)1" @(" ](#1H"D)U<R!N=6UB97(@(" @(#T@, I$979I
M8V4@;G5M8F5R(" ](#,Q"D9U;F-T:6]N(&YU;2 @(#T@- I3=&%T=7,@4F5G
M(" @(" ](#(X,&@*0V]M;6%N9"!296<@(" @/2 T: I(96%D97(@=‘EP92 @
M(" ](#!H(%-I;F=L92UF=6YC=&EO;@I"25-4(" @(" @(" @(" ](#!H($)U
M:6QD+6EN+7-E;&8M=&5S="!N;W0@<W5P<&]R=&5D"DQA=&5N8WD@5&EM97(@
M(#T@,&@*0V%C:&4@3&EN92!3:7IE/2 P:" 4$-)($E/($%D9’)E<W,@(#T@
M,&@@;&5N9W1H(#,R(&1I<V%B;&5D"E-U8G-Y<W1E;2!696YD;W(@240@/2 Q
M,#(X: I3=6)S>7-T96T@240@(" @(" @(#T@9#AH"DUA>"!,870@(" @(" @
M(#T@,&YS"DUI;B!’;G0@(" @(" @(#T@,&YS"E!#22!);G0@4&EN(" @(#T@
M24Y4($,26YT97)R=7!T(&QI;F4@/2 Y"@I#;&%S<R @(" @(" @(" ]($UU
M;'1I;65D:6$@
$%U9&EO
0I696YD;W(@240@(" @(" ](#@P.#9H+"!);G1E
M;"!#;W)P;W)A=&EO;B *1&5V:6-E($E$(" @(" @/2 R-#0U:“P@.#(X,#%”
M02]“04T@04,Y-R!!=61I;R!#;VYT<F]L;&5R"E!#22!I;F1E>” @(" @(#T@
M,&@0VQA<W,@0V]D97,@(" @/2 P-# Q,#!H"E)E=FES:6]N($E$(" @(#T@
M-&@0G5S(&YU;6)E<B @(" @/2 P"D1E=FEC92!N=6UB97(@(#T@,S$1G5N
M8W1I;VX@;G5M(" @/2 U"E-T871U<R!296<@(" @(#T@,C@P: I#;VUM86YD
M(%)E9R @(" ](#5H"DAE861E<B!T>7!E(" @(#T@,&@@4VEN9VQE+69U;F-T
M:6]N"D))4U0@(" @(" @(" @(#T@,&@@0G5I;&0M:6XM<V5L9BUT97-T(&YO
M="!S=7!P;W)T960
3&%T96YC>2!4:6UE<B @/2 P: I#86-H92!,:6YE(%-I
M>F4](#!H( I00TD@24@061D<F5S<R @/2!C.# P:"!L96YG=&@@,C4V(&5N
M86)L960
4$-)($E/($%D9’)E<W,@(#T@8V,T,&@@;&5N9W1H(#8T(&5N86)L
M960
4W5B<WES=&5M(%9E;F1O<B!)1" ](#$P,CAH"E-U8G-Y<W1E;2!)1" @
M(" @(" @/2!D.&@*36%X($QA=" @(" @(" @/2 P;G,36EN($=N=" @(" @
M(" @/2 P;G,4$-)($EN="!0:6X@(" @/2!)3E0@0@I);G1E<G)U<'0@;&EN
M92 ](#$P"@I#;&%S<R @(" @(" @(" ]($1I<W!L87D@
%9’02D
5F5N9&]R
M($E$(" @(" @/2 Q,# R:"P@051)(%1E8VAN;VQO9VEE<R 1&5V:6-E($E$
M(" @(" @/2 U,34Y:“P@4F%D96]N(%9%( I00TD@:6YD97@@(” @(" ](#!H
M"D-L87-S($-O9&5S(" @(#T@,#,P,# P: I2979I<VEO;B!)1" @(" ](#!H
M"D)U<R!N=6UB97(@(" @(#T@,0I$979I8V4@;G5M8F5R(" ](# 1G5N8W1I
M;VX@;G5M(" @/2 P"E-T871U<R!296<@(" @(#T@,F(P: I#;VUM86YD(%)E
M9R @(" ](#$X-V@2&5A9&5R('1Y<&4@(" @/2 P:"!3:6YG;&4M9G5N8W1I
M;VX
0DE35" @(" @(" @(" @/2 P:"!"=6EL9"UI;BUS96QF+71E<W0@;F]T
M(’-U<’!O<G1E9 I,871E;F-Y(%1I;65R(" ](#0P: I#86-H92!,:6YE(%-I
M>F4](#$P:"!U;BUC86-H96%B;&4
4$-)($UE;2!!9&1R97-S(#T@93@P,# P
M,#!H(’!R969E=&-H86)L92 S,F)I="!L96YG=&@@,3,T,C$W-S(X(&5N86)L
M960
4$-)($E/($%D9’)E<W,@(#T@96,P,&@@;&5N9W1H(#(U-B!E;F%B;&5D
M"E!#22!-96T@061D<F5S<R ](&9C-&8P,# P:" S,F)I="!L96YG=&@@-C4U
M,S8@96YA8FQE9 I3=6)S>7-T96T@5F5N9&]R($E$(#T@,3 P,F@4W5B<WES
M=&5M($E$(" @(" @(" ](#%B.&%H"E!#22!%>’!A;G-I;VX@4D]-(#T@8S$P
M,# P,#!H(&QE;F=T:" Q,S$P-S(@9&ES86)L960
36%X($QA=" @(" @(" @
M/2 P;G,*36EN($=N=" @(" @(" @/2 X;G,*4$-)($EN="!0:6X@(" @/2!)
M3E0@00I);G1E<G)U<‘0@;&EN92 ](#$Q"D-A<&%B:6QI=&EE<R!0;VEN=&5R
M(#T@-3AH"D-A<&%B:6QI=‘D@240@(" @(" @(#T@,F@0V%P86)I;&ET:65S
M(" @(" @(" @/2 R,&@@+2 R9C P,#(P-V@0V%P86)I;&ET>2!)1" @(" @
M(" @/2 Q: I#87!A8FEL:71I97,@(" @(" @(" ](#8P,F@@+2 P: H
0VQA
M<W,@(" @(" @(" @/2!"<FED9V4@
%!#22]00TDI"E9E;F1O<B!)1" @(" @
M(#T@.# X-F@L($EN=&5L($-O<G!O<F%T:6]N( I$979I8V4@240@(" @(" ]
M(#$S-C!H+" X,C@P-D%!($AU8B!);G1E<F9A8V4@=&@4$-)($)R:61G90I0
M0TD@:6YD97@@(" @(" ](#!H"D-L87-S($-O9&5S(" @(#T@,#8P-# P: I2
M979I<VEO;B!)1" @(" ](#-H"D)U<R!N=6UB97(@(" @(#T@,@I$979I8V4@
M;G5M8F5R(" ](#,Q"D9U;F-T:6]N(&YU;2 @(#T@, I3=&%T=7,@4F5G(" @
M(" ](#(P: I#;VUM86YD(%)E9R @(" ](#$P-V@2&5A9&5R('1Y<&4@(" @
M/2 Q:"!3:6YG;&4M9G5N8W1I;VX
0DE35" @(" @(" @(" @/2 P:"!"=6EL
M9"UI;BUS96QF+71E<W0@;F]T(’-U<’!O<G1E9 I,871E;F-Y(%1I;65R(" ]
M(#!H"D-A8VAE($QI;F4@4VEZ93T@,&@@“E!R:6UA<GD@0G5S($YU;6)E<B @
M(” @(" ](#)H"E-E8V]N9&%R>2!"=7,@3G5M8F5R(" @(" ](#-H"E-U8F]R
M9&EN871E($)U<R!.=6UB97(@(" ](#-H"E-E8V]N9&%R>2!,871E;F-Y(%1I
M;65R(" ](#0P: I)+T@0F%S92 @(" @(" @(" @(" @(" @/2!F,&@*22]/
M($QI;6ET(" @(" @(" @(" @(" @(#T@,&@*4V5C;VYD87)Y(%-T871U<R @
M(" @(" @(#T@,C)A,&@*365M;W)Y($)A<V4@(" @(" @(" @(" @(#T@9F,R
M,&@*365M;W)Y($QI;6ET(" @(" @(" @(" @(#T@9F,S,&@*4’)E9F5T8VAA
M8FQE($UE;6]R>2!"87-E(#T@9F9F,&@*4’)E9F5T8VAA8FQE($UE;6]R>2!,
M:6UI=#T@,&@4’)E9F5T8VAA8FQE($)A<V4@57!P97(@,S(@0FET<R @/2 P
M: I0<F5F971C:&%B;&4@3&EM:70@57!P97(@,S(@0FET<R ](#!H"DDO3R!"
M87-E(%5P<&5R(#$V($)I=’,@(" ](&9F9F9H"DDO3R!,:6UI="!5<’!E<B Q
M-B!":71S(" ](&9F9F9H"D)R:61G92!#;VYT<F]L(" @(" @(" @(" ](#,R
M-S<T;G,4$-)($EN="!0:6X@(" @(" @(" @(" @(#T@3D,26YT97)R=7!T
M(&QI;F4@(" @(" @(" @(#T@, H
0VQA<W,@(" @(" @(" @/2!3>7-T96T@
M4&5R:7!H97)A;’,@
%!)0RD
5F5N9&]R($E$(" @(" @/2 X,#@V:“P@26YT
M96P@0V]R<&]R871I;VX@“D1E=FEC92!)1” @(” @(#T@,3$V,6@L(#@R.# V
M04$@22]/($%024,@1&5V:6-E"E!#22!I;F1E>" @(" @(#T@,&@*0VQA<W,@
M0V]D97,@(" @/2 P.# P,C!H"E)E=FES:6]N($E$(" @(#T@,6@*0G5S(&YU
M;6)E<B @(" @/2 S"D1E=FEC92!N=6UB97(@(#T@, I&=6YC=&EO;B!N=6T@
M(" ](# 4W1A='5S(%)E9R @(" @/2 P: I#;VUM86YD(%)E9R @(" ](#!H
M"DAE861E<B!T>7!E(" @(#T@,&@@375L=&DM9G5N8W1I;VX
0DE35" @(" @
M(" @(" @/2 P:"!"=6EL9"UI;BUS96QF+71E<W0@;F]T(’-U<’!O<G1E9 I,
M871E;F-Y(%1I;65R(" ](#!H"D-A8VAE($QI;F4@4VEZ93T@,&@@“E-U8G-Y
M<W1E;2!696YD;W(@240@/2 X,#@V: I3=6)S>7-T96T@240@(” @(" @(#T@
M,3$V,6@*36%X($QA=" @(" @(" @/2 P;G,*36EN($=N=" @(" @(" @/2 P
M;G,*4$-)($EN="!0:6X@(" @/2!.0PI);G1E<G)U<‘0@;&EN92 ](# *“D-L
M87-S(” @(" @(" @(#T@3F5T=V]R:R H171H97)N970I"E9E;F1O<B!)1" @
M(" @(#T@,3!B-V@L(#-#;VT@0V]R<&]R871I;VX@“D1E=FEC92!)1” @(" @
M(#T@.3(P,&@L(#-#.3 U0RU46"!&87-T($5T:&5R3&EN:R!F;W(@4$,@36%N
M86=E;65N="!.24,4$-)(&EN9&5X(" @(" @/2 P: I#;&%S<R!#;V1E<R @
M(" ](# R,# P,&@4F5V:7-I;VX@240@(" @/2 W.&@0G5S(&YU;6)E<B @
M(" @/2 T"D1E=FEC92!N=6UB97(@(#T@,3$1G5N8W1I;VX@;G5M(" @/2 P
M"E-T871U<R!296<@(" @(#T@,C$P: I#;VUM86YD(%)E9R @(" ](#$Q-V@

M2&5A9&5R('1Y<&4@(" @/2 P:"!3:6YG;&4M9G5N8W1I;VX
0DE35" @(" @
M(" @(" @/2 P:"!"=6EL9"UI;BUS96QF+71E<W0@;F]T(’-U<’!O<G1E9 I,
M871E;F-Y(%1I;65R(" ](#0P: I#86-H92!,:6YE(%-I>F4](#$P:"!U;BUC
M86-H96%B;&4
4$-)($E/($%D9’)E<W,@(#T@9&,X,&@@;&5N9W1H(#$R."!E
M;F%B;&5D"E!#22!-96T@061D<F5S<R ](&9B969F8S P:" S,F)I="!L96YG
M=&@@,3(X(&5N86)L960
4W5B<WES=&5M(%9E;F1O<B!)1" ](#$P,CAH"E-U
M8G-Y<W1E;2!)1" @(" @(" @/2!D.&@*4$-)($5X<&%N<VEO;B!23TT@/2!F
M8F8P,# P,&@@;&5N9W1H(#$S,3 W,B!D:7-A8FQE9 I-87@@3&%T(" @(" @
M(" ](#$P;G,*36EN($=N=" @(" @(" @/2 Q,&YS"E!#22!);G0@4&EN(" @
M(#T@24Y4($$26YT97)R=7!T(&QI;F4@/2 Y"D-A<&%B:6QI=&EE<R!0;VEN
M=&5R(#T@9&-H"D-A<&%B:6QI='D@240@(" @(" @(#T@,6@0V%P86)I;&ET
M:65S(" @(" @(" @/2!F93 R:" M(#8X,# T,3 P: H
0VQA<W,@(" @(" @
M(" @/2!397)I86P@0G5S("A&:7)E5VER92D
5F5N9&]R($E$(" @(" @/2 Q
M,#1C:"P@5&5X87,@26YS=’)U;65N=’,@“D1E=FEC92!)1” @(" @(#T@.# R
M,&@L(%130C$R3%8R-B!/2$-)+4QY;G@@4$-)($E%144@,3,Y-"!(;W-T($-O
M;G1R;VQL97(*4$-)(&EN9&5X(" @(" @/2 P: I#;&%S<R!#;V1E<R @(" ]
M(#!C,# Q,&@4F5V:7-I;VX@240@(" @/2 P: I"=7,@;G5M8F5R(" @(" ]
M(#0
1&5V:6-E(&YU;6)E<B @/2 Q,@I&=6YC=&EO;B!N=6T@(" ](# 4W1A
M='5S(%)E9R @(" @/2 R,3!H"D-O;6UA;F0@4F5G(" @(#T@,3$V: I(96%D
M97(@=‘EP92 @(" ](#!H(%-I;F=L92UF=6YC=&EO;@I"25-4(" @(" @(" @
M(" ](#!H($)U:6QD+6EN+7-E;&8M=&5S="!N;W0@<W5P<&]R=&5D"DQA=&5N
M8WD@5&EM97(@(#T@-#!H"D-A8VAE($QI;F4@4VEZ93T@,3!H(‘5N+6-A8VAE
M86)L90I00TD@365M($%D9’)E<W,@/2!F8F5F9C P,&@@,S)B:70@;&5N9W1H
M(#(P-#@@96YA8FQE9 I00TD@365M($%D9’)E<W,@/2!F8F5F.# P,&@@,S)B
M:70@;&5N9W1H(#$V,S@T(&5N86)L960
4W5B<WES=&5M(%9E;F1O<B!)1" ]
M(#$P,CAH"E-U8G-Y<W1E;2!)1" @(" @(" @/2!D.&@*36%X($QA=" @(" @
M(" @/2 T;G,36EN($=N=" @(" @(" @/2 R;G,4$-)($EN="!0:6X@(" @
M/2!)3E0@00I);G1E<G)U<'0@;&EN92 ](#$Q"D-A<&%B:6QI=&EE<R!0;VEN
M=&5R(#T@-#1H"D-A<&%B:6QI='D@240@(" @(" @(#T@,6@0V%P86)I;&ET
M:65S(" @(" @(" @/2 V-#$Q:" M(#!H"@I#;&%S<R @(" @(" @(" ]($-O
M;6UU;FEC871I;VX@
%!)0RD
5F5N9&]R($E$(" @(" @/2 Q,S5C:“P@475A
M=&5C:”!);F,@“D1E=FEC92!)1” @(" @(#T@-3!H+"!5;FMN;W=N(%5N:VYO
M=VX
4$-)(&EN9&5X(" @(" @/2 P: I#;&%S<R!#;V1E<R @(" ](# W,#(P
M,&@*4F5V:7-I;VX@240@(" @/2 S,F@*0G5S(&YU;6)E<B @(" @/2 T"D1E
M=FEC92!N=6UB97(@(#T@,3,*1G5N8W1I;VX@;G5M(" @/2 P"E-T871U<R!2
M96<@(" @(#T@,C@P: I#;VUM86YD(%)E9R @(" ](#$P,V@2&5A9&5R('1Y
M<&4@(" @/2 P:"!3:6YG;&4M9G5N8W1I;VX
0DE35" @(" @(" @(" @/2 P
M:"!"=6EL9"UI;BUS96QF+71E<W0@;F]T(’-U<’!O<G1E9 I,871E;F-Y(%1I
M;65R(" ](#!H"D-A8VAE($QI;F4@4VEZ93T@,&@@“E!#22!)3R!!9&1R97-S
M(” ](&1C,#!H(&QE;F=T:" Q,C@@96YA8FQE9 I00TD@24@061D<F5S<R @
M/2!D.&,P:"!L96YG=&@@-C0@96YA8FQE9 I3=6)S>7-T96T@5F5N9&]R($E$
M(#T@,3,U8V@4W5B<WES=&5M($E$(" @(" @(" ](#4P: I00TD@17AP86YS
M:6]N(%)/32 ](&9B9C P,# P:"!L96YG=&@@,C T."!D:7-A8FQE9 I-87@@
M3&%T(" @(" @(" ](#!N<PI-:6X@1VYT(" @(" @(" ](#!N<PI00TD@26YT
M(%!I;B @(" ]($E.5"!!“DEN=&5R<G5P=”!L:6YE(#T@,3 “D-L87-S(” @
M(" @(" @(#T@0V]M;75N:6-A=&EO;B H4$E#0I696YD;W(@240@(" @(" ]
M(#$S-6-H+"!1=6%T96-H($EN8R 1&5V:6-E($E$(" @(" @/2 T,&@L(%5N
M:VYO=VX@56YK;F]W;@I00TD@:6YD97@@(" @(" ](#!H"D-L87-S($-O9&5S
M(" @(#T@,#<P,C P: I2979I<VEO;B!)1" @(" ](#1H"D)U<R!N=6UB97(@
M(" @(#T@- I$979I8V4@;G5M8F5R(" ](#$T"D9U;F-T:6]N(&YU;2 @(#T@
M, I3=&%T=7,@4F5G(" @(" ](#(X,&@0V]M;6%N9"!296<@(" @/2 Q,#-H
M"DAE861E<B!T>7!E(" @(#T@,&@@4VEN9VQE+69U;F-T:6]N"D))4U0@(" @
M(" @(" @(#T@,&@@0G5I;&0M:6XM<V5L9BUT97-T(&YO="!S=7!P;W)T960

M3&%T96YC>2!4:6UE<B @/2 P: I#86-H92!,:6YE(%-I>F4](#!H( I00TD@
M24@061D<F5S<R @/2!D.# P:"!L96YG=&@@,3(X(&5N86)L960
4$-)($E/
M($%D9’)E<W,@(#T@9#AA,&@@;&5N9W1H(#,R(&5N86)L960
4W5B<WES=&5M
M(%9E;F1O<B!)1" ](#$S-6-H"E-U8G-Y<W1E;2!)1" @(" @(" @/2 T,&@

M4$-)($5X<&%N<VEO;B!23TT@/2!F8F8P,# P,&@@;&5N9W1H(#(P-#@@9&ES
M86)L960
36%X($QA=" @(" @(" @/2 P;G,36EN($=N=" @(" @(" @/2 P
M;G,4$-)($EN="!0:6X@(" @/2!)3E0@00I);G1E<G)U<'0@;&EN92 ](#$Q
M"@I#;&%S<R @(" @(" @(" ]($)R:61G92 H56YK;F]W;BD
5F5N9&]R($E$
M(" @(" @/2 Q,C1B:“P@1W)E96Y3<’)I;F<@0V]M<'5T97)S( I$979I8V4@
M240@(” @(" ](#0P:“P@56YK;F]W;B!5;FMN;W=N"E!#22!I;F1E>” @(" @
M(#T@,&@0VQA<W,@0V]D97,@(" @/2 P-C@P,#!H"E)E=FES:6]N($E$(" @
M(#T@8F@0G5S(&YU;6)E<B @(" @/2 T"D1E=FEC92!N=6UB97(@(#T@,34
M1G5N8W1I;VX@;G5M(" @/2 P"E-T871U<R!296<@(" @(#T@,C@P: I#;VUM
M86YD(%)E9R @(" ](#$Q-V@2&5A9&5R('1Y<&4@(" @/2 P:"!3:6YG;&4M
M9G5N8W1I;VX
0DE35" @(" @(" @(" @/2 P:"!"=6EL9"UI;BUS96QF+71E
M<W0@;F]T(’-U<’!O<G1E9 I,871E;F-Y(%1I;65R(" ](#0P: I#86-H92!,
M:6YE(%-I>F4](#$P:"!U;BUC86-H96%B;&4
4W5B<WES=&5M(%9E;F1O<B!)
M1" ](#$R-&)H"E-U8G-Y<W1E;2!)1" @(" @(" @/2 Y,#@P: I-87@@3&%T
M(" @(" @(" ](#!N<PI-:6X@1VYT(" @(" @(" ](#!N<PI00TD@26YT(%!I
B;B @(" ]($E.5"!!“DEN=&5R<G5P=”!L:6YE(#T@,3$
"@``
`
end

Addressed in qdn.public.ddk




“Brian Meinke” <RoverFan_SE7@Hotmail.com> wrote in message
news:avhgd9$icv$1@inn.qnx.com

I’m having a little intermittent problem with devc-ser8250 on 6.20A PE SMP
(Dual 1.8 GHz Xeons, 512MB, 3COM 3C905C NIC)

I am trying to develop a character driver for a multi-port VME Bus serial
board and have written a small test application which simply writes a
string
out one serial port of the VME Serial Card and is received on COM1 on a
different computer. The VME based computer (PIII850 256 MB) running my
devc
driver (devc-mz8300) and the Dual Xeon box is simply running devc-ser8250.
Serial ports on both boxes set to 9600,N,8,1 raw with no hardware/software
handshaking (this is due to legacy configurations of the VME serial board
already being used in the field).

The problem I am seeing is that the Dual Xeon box stops
transmitting.receiving data after some random amount of time (anywhere
from
5 minutes to several hours) and all network connections are lost (I have
to
slay/restart io-net to access the network).

I have tried using the non-SMP kernel which only extends the amount of
time
which passes before the problem occurs.
I have disabled hyper-threading both with and without the SMP kernel which
seems to have a similar effect as using the non-SMP kernel (more time
passes
before problem occurs).

I have attached the output from ‘pci -v’. Any ideas are greatly
appreciated.

TIA
Brian