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Message-ID: <alpine.DEB.2.00.1410081157470.16668@ware.dreamhost.com> Date: Wed, 8 Oct 2014 12:01:34 -0700 (PDT) From: Eric Wheeler <netdev@...ts.ewheeler.net> To: Eric Dumazet <eric.dumazet@...il.com> cc: Shahed Shaikh <shahed.shaikh@...gic.com>, Stephen Hemminger <stephen@...workplumber.org>, netdev <netdev@...r.kernel.org>, Rasesh Mody <rasesh.mody@...gic.com> Subject: Re: [PATCH net] bna: page allocation during interrupts to use a mempool. On Tue, 7 Oct 2014, Eric Dumazet wrote: > On Tue, 2014-10-07 at 17:48 -0700, Eric Wheeler wrote: > >> Just += unmap->vector.len still did not work (same backtrace), so I've >> rebuilt with PAGE_SIZE<<2 and so far so good. I'll let it run all night >> and see if we get any problems. > > Further inspection of the driver told me that unmap->vector.len should > be 16384 already. (same than PAGE_SIZE << 2) > (set at line 304, drivers/net/ethernet/brocade/bna/bnad.c) > > So you might hit memory fragmentation issues. > > Do you have CONFIG_COMPACTION=y in your .config ? We're still having the backtrace. Here's nstat -a : IpInReceives 305249739 0.0 IpInAddrErrors 1100 0.0 IpInDelivers 305232139 0.0 IpOutRequests 256712718 0.0 IpOutNoRoutes 197 0.0 IcmpInErrors 10241 0.0 IcmpInCsumErrors 4200 0.0 IcmpInTimeExcds 9753 0.0 IcmpInEchoReps 247 0.0 IcmpInTimestamps 241 0.0 IcmpOutErrors 10325 0.0 IcmpOutTimeExcds 9792 0.0 IcmpOutEchoReps 286 0.0 IcmpOutTimestamps 247 0.0 IcmpMsgInType0 241 0.0 IcmpMsgInType3 9753 0.0 IcmpMsgInType8 247 0.0 IcmpMsgOutType0 247 0.0 IcmpMsgOutType3 9792 0.0 IcmpMsgOutType8 286 0.0 TcpActiveOpens 9585 0.0 TcpPassiveOpens 1233 0.0 TcpAttemptFails 8119 0.0 TcpEstabResets 165 0.0 TcpInSegs 305269357 0.0 TcpOutSegs 745563105 0.0 TcpRetransSegs 9118 0.0 TcpOutRsts 74110 0.0 UdpInDatagrams 81957 0.0 UdpOutDatagrams 141536 0.0 Ip6InReceives 348168 0.0 Ip6InNoRoutes 1 0.0 Ip6InDelivers 303971 0.0 Ip6OutRequests 168344 0.0 Ip6InMcastPkts 183943 0.0 Ip6OutMcastPkts 7976 0.0 Ip6InOctets 867026250 0.0 Ip6OutOctets 843515112 0.0 Ip6InMcastOctets 23885658 0.0 Ip6OutMcastOctets 733912 0.0 Ip6InNoECTPkts 348168 0.0 Icmp6InMsgs 139747 0.0 Icmp6OutMsgs 4120 0.0 Icmp6InGroupMembQueries 3306 0.0 Icmp6InRouterAdvertisements 135646 0.0 Icmp6InNeighborAdvertisements 795 0.0 Icmp6OutRouterSolicits 187 0.0 Icmp6OutNeighborSolicits 77 0.0 Icmp6OutMLDv2Reports 3856 0.0 Icmp6InType130 3306 0.0 Icmp6InType134 135646 0.0 Icmp6InType136 795 0.0 Icmp6OutType133 187 0.0 Icmp6OutType135 77 0.0 Icmp6OutType143 3856 0.0 TcpExtSyncookiesFailed 5 0.0 TcpExtPruneCalled 3694 0.0 TcpExtTW 882 0.0 TcpExtPAWSEstab 3 0.0 TcpExtDelayedACKs 974539 0.0 TcpExtDelayedACKLocked 21365 0.0 TcpExtDelayedACKLost 2071 0.0 TcpExtTCPPrequeued 84806172 0.0 TcpExtTCPDirectCopyFromBacklog 687333144 0.0 TcpExtTCPDirectCopyFromPrequeue 2733255078 0.0 TcpExtTCPPrequeueDropped 915 0.0 TcpExtTCPHPHits 85972078 0.0 TcpExtTCPHPHitsToUser 790722 0.0 TcpExtTCPPureAcks 119419354 0.0 TcpExtTCPHPAcks 72305521 0.0 TcpExtTCPRenoRecovery 36 0.0 TcpExtTCPSackRecovery 431 0.0 TcpExtTCPFACKReorder 8 0.0 TcpExtTCPSACKReorder 51 0.0 TcpExtTCPTSReorder 41 0.0 TcpExtTCPFullUndo 67 0.0 TcpExtTCPPartialUndo 62 0.0 TcpExtTCPDSACKUndo 176 0.0 TcpExtTCPLossUndo 11 0.0 TcpExtTCPLostRetransmit 10 0.0 TcpExtTCPSackFailures 6 0.0 TcpExtTCPFastRetrans 715 0.0 TcpExtTCPForwardRetrans 411 0.0 TcpExtTCPSlowStartRetrans 495 0.0 TcpExtTCPTimeouts 3517 0.0 TcpExtTCPLossProbes 2143 0.0 TcpExtTCPLossProbeRecovery 908 0.0 TcpExtTCPRenoRecoveryFail 3 0.0 TcpExtTCPSchedulerFailed 245 0.0 TcpExtTCPRcvCollapsed 21549 0.0 TcpExtTCPDSACKOldSent 1891 0.0 TcpExtTCPDSACKRecv 1662 0.0 TcpExtTCPAbortOnData 28 0.0 TcpExtTCPAbortOnClose 242 0.0 TcpExtTCPAbortOnTimeout 18 0.0 TcpExtTCPDSACKIgnoredNoUndo 928 0.0 TcpExtTCPSpuriousRTOs 5 0.0 TcpExtTCPSackShifted 479 0.0 TcpExtTCPSackMerged 498 0.0 TcpExtTCPSackShiftFallback 2934 0.0 TcpExtIPReversePathFilter 9407 0.0 TcpExtTCPRetransFail 582 0.0 TcpExtTCPRcvCoalesce 23709443 0.0 TcpExtTCPOFOQueue 19162 0.0 TcpExtTCPChallengeACK 8098 0.0 TcpExtTCPSpuriousRtxHostQueues 2932 0.0 TcpExtTCPAutoCorking 56870637 0.0 IpExtInMcastPkts 87288 0.0 IpExtOutMcastPkts 146507 0.0 IpExtInBcastPkts 16682 0.0 IpExtInOctets 54665312000 0.0 IpExtOutOctets 3365913113553 0.0 IpExtInMcastOctets 2765660 0.0 IpExtOutMcastOctets 4688240 0.0 IpExtInBcastOctets 3651661 0.0 IpExtInNoECTPkts 313364477 0.0 -- Eric Wheeler, President eWheeler, Inc. dba Global Linux Security 888-LINUX26 (888-546-8926) Fax: 503-716-3878 PO Box 25107 www.GlobalLinuxSecurity.pro Linux since 1996! Portland, OR 97298 > > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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