Date: Tue, 26 Feb 2008 17:56:10 +0200 From: "Dave Raven" <dave@raven.za.net> To: <freebsd-questions@freebsd.org>, "'Simon Chang'" <simonychang@gmail.com> Subject: RE: Dropped Packets Message-ID: <039c01c87890$1ef36330$5cda2990$@za.net> References: <00b301c876f1$74b16d80$5e144880$@za.net> <8efc42630802240757i5e0c9f36g29a726a31de27502@mail.gmail.com>
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Hi all, I have done some more investigation and stumbled into something odd. If I use ping currently I am getting about 3% packet loss (it gets worse) but with hping (to the exact same ip) I get no loss? As I understand hping and ping use different methods of sending packets, could this be an indication to where my problem might be (buffering or something) ? Ping -- 290 packets transmitted, 281 packets received, 3% packet loss Hping -- 289 packets tramitted, 289 packets received, 0% packet loss I'm using icmp mode in hping, and sending to the same ip... Thanks again for the help Dave -----Original Message----- From: Dave Raven [mailto:dave@raven.za.net] Sent: Sunday, February 24, 2008 6:25 PM To: 'Simon Chang' Cc: 'freebsd-questions@freebsd.org' Subject: RE: Dropped Packets Hi, Its interesting you'd say that I'd virtually ruled it out given that it takes over a day to start? What I do see sometimes is a message warning me that its limiting open port RST responses - the unit is under a reasonable amount of load though (but not overloaded). The strange thing is that its open port (not closed). Even if I up the limit though (the messages do stop) it doesn't stop the dropping... I've rebooted it recently, but here is the dmesg -- CPU: Intel(R) Xeon(R) CPU 5150 @ 2.66GHz (2666.68-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x6fb Stepping = 11 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA ,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Hyperthreading: 2 logical CPUs real memory = 3489005568 (3407232K bytes) avail memory = 3395510272 (3315928K bytes) Preloaded elf kernel "kernel" at 0xc0378000. Preloaded elf module "splash_bmp.ko" at 0xc037809c. Preloaded splash_image_data "/boot/optec.bmp" at 0xc0378140. Preloaded elf module "if_em.ko" at 0xc037818c. Preloaded elf module "if_silbpi.ko" at 0xc037822c. Preloaded elf module "hptmv.ko" at 0xc03782d0. Pentium Pro MTRR support enabled md0: Malloc disk Using $PIR table, 31 entries at 0xc00fddd0 npx0: <math processor> on motherboard npx0: INT 16 interface pcib0: <Host to PCI bridge> on motherboard pci0: <PCI bus> on pcib0 pcib8: <PCI to PCI bridge (vendor=8086 device=25f7)> irq 0 at device 2.0 on pci0 pci1: <PCI bus> on pcib8 pcib9: <PCI to PCI bridge (vendor=8086 device=3500)> irq 11 at device 0.0 on pci1 pci2: <PCI bus> on pcib9 pcib10: <PCI to PCI bridge (vendor=8086 device=3510)> irq 11 at device 0.0 on pci2 pci3: <PCI bus> on pcib10 pcib11: <PCI to PCI bridge (vendor=8086 device=0329)> at device 0.0 on pci3 pci4: <PCI bus> on pcib11 pcib12: <PCI to PCI bridge (vendor=8086 device=032a)> at device 0.2 on pci3 pci5: <PCI bus> on pcib12 hptmv0: <RocketRAID 182x SATA Controller> mem 0xd8000000-0xd807ffff irq 11 at device 1.0 on pci5 RocketRAID 182x SATA Controller driver Version 1.12 RR182x [0,0]: channel started successfully RR182x [0,1]: channel started successfully RR182x [0,2]: channel started successfully RR182x [0,3]: channel started successfully RR182x [0,4]: channel started successfully RR182x [0,5]: channel started successfully RR182x [0,6]: channel started successfully RR182x [0,7]: channel started successfully RR182x: RAID5 write-back enabled pcib13: <PCI to PCI bridge (vendor=8086 device=3518)> irq 5 at device 2.0 on pci2 pci6: <PCI bus> on pcib13 pci6: <unknown card> (vendor=0x8086, dev=0x1096) at 0.0 irq 5 pci6: <unknown card> (vendor=0x8086, dev=0x1096) at 0.1 irq 10 pcib14: <PCI to PCI bridge (vendor=8086 device=350c)> at device 0.3 on pci1 pci7: <PCI bus> on pcib14 silbpi0: <PXG2BPIG> port 0x3000-0x303f mem 0xd8200000-0xd821ffff irq 11 at device 1.0 on pci7 silbpi0: Speed:N/A Duplex:N/A silbpi1: <PXG2BPIG> port 0x3040-0x307f mem 0xd8220000-0xd823ffff irq 7 at device 1.1 on pci7 silbpi1: Speed:N/A Duplex:N/A pcib15: <PCI to PCI bridge (vendor=8086 device=25f8)> irq 0 at device 4.0 on pci0 pci8: <PCI bus> on pcib15 pcib16: <PCI to PCI bridge (vendor=8086 device=25f9)> irq 0 at device 6.0 on pci0 pci9: <PCI bus> on pcib16 pcib17: <PCI to PCI bridge (vendor=8086 device=2690)> irq 7 at device 28.0 on pci0 pci10: <PCI bus> on pcib17 pcib18: <Intel 82801BA/BAM (ICH2) Hub to PCI bridge> at device 30.0 on pci0 pci11: <PCI bus> on pcib18 pci11: <ATI model 515e graphics accelerator> at 1.0 irq 5 isab0: <PCI to ISA bridge (vendor=8086 device=2670)> at device 31.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Generic PCI ATA controller> port 0x1800-0x180f,0-0x3,0-0x7,0-0x3,0-0x7 at device 31.1 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ata1: at 0x170 irq 15 on atapci0 pci0: <unknown card> (vendor=0x8086, dev=0x269b) at 31.3 irq 10 pcib1: <Host to PCI bridge> on motherboard pci12: <PCI bus> on pcib1 pcib2: <Host to PCI bridge> on motherboard pci13: <PCI bus> on pcib2 pcib3: <Host to PCI bridge> on motherboard pci14: <PCI bus> on pcib3 pcib4: <Host to PCI bridge> on motherboard pci15: <PCI bus> on pcib4 pcib5: <Host to PCI bridge> on motherboard pci16: <PCI bus> on pcib5 pcib6: <Host to PCI bridge> on motherboard pci17: <PCI bus> on pcib6 pcib7: <Host to PCI bridge> on motherboard pci18: <PCI bus> on pcib7 orm0: <Option ROMs> at iomem 0xc0000-0xcafff,0xcb000-0xd0fff on isa0 pmtimer0 on isa0 fdc0: ready for input in output fdc0: cmd 3 failed at out byte 1 of 3 atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 16550A sio1: configured irq 3 not in bitmap of probed irqs 0 IP packet filtering initialized, divert enabled, rule-based forwarding enabled, default to accept, logging disabled IPsec: Initialized Security Association Processing. IP Filter: v3.4.35 initialized. Default = block all, Logging = enabled ad0: 76319MB <ST380215A> [155061/16/63] at ata0-master BIOSDMA da0 at hptmv0 bus 0 target 0 lun 0 da0: <ST380815 AS 3.AA> Fixed Direct Access SCSI-0 device da0: 76319MB (156301477 512 byte sectors: 255H 63S/T 9729C) da1 at hptmv0 bus 0 target 1 lun 0 da1: <ST380815 AS 3.AA> Fixed Direct Access SCSI-0 device da1: 76319MB (156301477 512 byte sectors: 255H 63S/T 9729C) da2 at hptmv0 bus 0 target 2 lun 0 da2: <ST380815 AS 3.AA> Fixed Direct Access SCSI-0 device da2: 76319MB (156301477 512 byte sectors: 255H 63S/T 9729C) da3 at hptmv0 bus 0 target 3 lun 0 da3: <ST380815 AS 3.AA> Fixed Direct Access SCSI-0 device da3: 76319MB (156301477 512 byte sectors: 255H 63S/T 9729C) da4 at hptmv0 bus 0 target 4 lun 0 da4: <ST380815 AS 3.AA> Fixed Direct Access SCSI-0 device da4: 76319MB (156301477 512 byte sectors: 255H 63S/T 9729C) da5 at hptmv0 bus 0 target 5 lun 0 da5: <ST380815 AS 3.AA> Fixed Direct Access SCSI-0 device da5: 76319MB (156301477 512 byte sectors: 255H 63S/T 9729C) da6 at hptmv0 bus 0 target 6 lun 0 da6: <ST380815 AS 3.AA> Fixed Direct Access SCSI-0 device da6: 76319MB (156301477 512 byte sectors: 255H 63S/T 9729C) da7 at hptmv0 bus 0 target 7 lun 0 da7: <ST380815 AS 3.AA> Fixed Direct Access SCSI-0 device da7: 76319MB (156301477 512 byte sectors: 255H 63S/T 9729C) Mounting root from ufs:/dev/ad0s1a Thanks for the help Dave -----Original Message----- From: Simon Chang [mailto:simonychang@gmail.com] Sent: Sunday, February 24, 2008 5:57 PM To: Dave Raven Cc: freebsd-questions@freebsd.org Subject: Re: Dropped Packets Hardware issues come to mind. Do you have a dmesg? SC On Sun, Feb 24, 2008 at 9:27 AM, Dave Raven <dave@raven.za.net> wrote: > Hi all, > I have a FreeBSD 4.11 (I know its outdated but I don't have an > option) box which is behaving very weirdly. After about a day and a half it > starts to drop packets - about 6-10% of pings at least, and tcp traffic > becomes unreliable etc. > > I have swapped out the network cards, the cables etc and I don't have any > mbuf problems and all seems fine. For the first day the box works fine - > pinging, doing tcp traffic etc; and then suddenly it just stops. Rebooting > brings it all back to normal. > > Any ideas what could be causing this, and how I could go about diagnosing > it? As far as I know there are no known bugs for this. I'm using the em > driver, but not with SMP. There are no errors on the interface, and the em > debug_info and stats sysctl's don't show any problems - there is no > indication on the box itself that its dropping packets.. > > My thinking is that it must be box specific as a reboot solves the problem? > > Thanks in advance > Dave > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >
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