When trying to send certain large emails using Mutt 1.5.19, I'm getting the message "bce0: Tx packet consumes too many DMA segments, dropping..." from the kernel and at this point Mutt appears to hang. I'm running OpenBSD 4.5 on AMD64. The network device in question is a Broadcom BCM4401B1. Unfortunately I'm not too savvy at debugging low level network things like this so if anybody has any way for me to give more information I'd be more than happy to do it. I cannot discern any other parts of the system that are being affected by this; HTTP, SSH, and other things seem to be working fine. But Mutt will hang at some point in the sending of the message (always at the same point for the same message content).
I've not had problems like this before today; the only two things I can think of having changed recently is (1) upgrading from a mid-February snapshot to the 4.5 release, and (2) lifting the limits of my current user class according to login.conf, setting datasize, maxproc, stacksize, and openfiles to infinity. My dmesg from this machine, including the error text, is attached. Thanks for any ideas, -- Taylor Christopher Venable http://real.metasyntax.net:2357/ OpenBSD 4.5 (GENERIC.MP) #2133: Sat Feb 28 15:02:16 MST 2009 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 936837120 (893MB) avail mem = 896937984 (855MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xf0470 (37 entries) bios0: vendor Dell Inc. version "2.3.0" date 03/15/2006 bios0: Dell Inc. Inspiron 1501 acpi0 at bios0: rev 0 acpi0: tables DSDT FACP TCPA SSDT APIC MCFG HPET SLIC acpi0: wakeup devices PB2_(S4) PB3_(S4) PB5_(S4) PB6_(S4) OHC1(S0) OHC2(S0) OHC3(S0) OHC4(S0) OHC5(S0) EHCI(S0) P2P_(S5) MODM(S3) SLPB(S4) LID_(S3) acpitimer0 at acpi0: 3579545 Hz, 32 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD Turion(tm) 64 X2 Mobile Technology TL-50, 1596.25 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 256KB 64b/line 16-way L2 cache cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: DTLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: apic clock running at 199MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: AMD Turion(tm) 64 X2 Mobile Technology TL-50, 1596.00 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 256KB 64b/line 16-way L2 cache cpu1: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu1: DTLB 32 4KB entries fully associative, 8 4MB entries fully associative ioapic0 at mainbus0 apid 2 pa 0xfec00000, version 21, 24 pins acpihpet0 at acpi0: 14318180 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (PB2_) acpiprt2 at acpi0: bus -1 (PB3_) acpiprt3 at acpi0: bus 2 (PB5_) acpiprt4 at acpi0: bus -1 (PB6_) acpiprt5 at acpi0: bus 8 (P2P_) acpiprt6 at acpi0: bus 1 (AGP_) acpiec0 at acpi0 acpicpu0 at acpi0: PSS acpicpu1 at acpi0: PSS acpitz0 at acpi0: critical temperature 110 degC acpibtn0 at acpi0: PWRB acpibtn1 at acpi0: SLPB acpibtn2 at acpi0: LID_ acpiac0 at acpi0: AC unit online acpibat0 at acpi0: BAT1 model "DELLRD8507" serial 4165 type LION oem "SIMPLO" acpivideo at acpi0 not configured cpu0: PowerNow! K8 1596 MHz: speeds: 1600 800 MHz pci0 at mainbus0 bus 0: configuration mode 1 pchb0 at pci0 dev 0 function 0 "ATI RS480 Host" rev 0x10 ppb0 at pci0 dev 1 function 0 "ATI RS480 PCIE" rev 0x00 pci1 at ppb0 bus 1 vga1 at pci1 dev 5 function 0 "ATI Radeon XPRESS 200M" rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) ppb1 at pci0 dev 5 function 0 "ATI RS480 PCIE" rev 0x00 pci2 at ppb1 bus 2 ahci0 at pci0 dev 18 function 0 "ATI SB600 SATA" rev 0x00: apic 2 int 22 (irq 11), AHCI 1.1 scsibus0 at ahci0: 32 targets sd0 at scsibus0 targ 0 lun 0: <ATA, WDC WD2500BEVS-0, 01.0> SCSI3 0/direct fixed sd0: 238475MB, 512 bytes/sec, 488397168 sec total ohci0 at pci0 dev 19 function 0 "ATI SB600 USB" rev 0x00: apic 2 int 16 (irq 10), version 1.0, legacy support ohci1 at pci0 dev 19 function 1 "ATI SB600 USB" rev 0x00: apic 2 int 17 (irq 11), version 1.0, legacy support ohci2 at pci0 dev 19 function 2 "ATI SB600 USB" rev 0x00: apic 2 int 18 (irq 11), version 1.0, legacy support ohci3 at pci0 dev 19 function 3 "ATI SB600 USB" rev 0x00: apic 2 int 17 (irq 11), version 1.0, legacy support ohci4 at pci0 dev 19 function 4 "ATI SB600 USB" rev 0x00: apic 2 int 18 (irq 11), version 1.0, legacy support ehci0 at pci0 dev 19 function 5 "ATI SB600 USB2" rev 0x00: apic 2 int 19 (irq 11) usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 piixpm0 at pci0 dev 20 function 0 "ATI SBx00 SMBus" rev 0x13: SMI iic0 at piixpm0 spdmem0 at iic0 addr 0x50: 512MB DDR2 SDRAM non-parity PC2-4200CL5 SO-DIMM spdmem1 at iic0 addr 0x52: 512MB DDR2 SDRAM non-parity PC2-4200CL5 SO-DIMM piixpm0: exec: op 1, addr 0x55, cmdlen 1, len 0, flags 0x08: timeout, status 0x9<BUSY,BUSERR> pciide0 at pci0 dev 20 function 1 "ATI SB600 IDE" rev 0x00: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide0 channel 0 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <TSSTcorp, DVD+-RW TS-L632D, DE04> ATAPI 5/cdrom removable cd0(pciide0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2 azalia0 at pci0 dev 20 function 2 "ATI SBx00 HD Audio" rev 0x00: apic 2 int 16 (irq 10) azalia0: codecs: Conexant/0x2bfa, Sigmatel STAC9200, using Sigmatel STAC9200 audio0 at azalia0 pcib0 at pci0 dev 20 function 3 "ATI SB600 ISA" rev 0x00 ppb2 at pci0 dev 20 function 4 "ATI SB600 PCI" rev 0x00 pci3 at ppb2 bus 8 bce0 at pci3 dev 0 function 0 "Broadcom BCM4401B1" rev 0x02: apic 2 int 21 (irq 10), address 00:19:b9:6b:fc:89 bmtphy0 at bce0 phy 1: BCM4401 10/100baseTX PHY, rev. 0 sdhc0 at pci3 dev 1 function 0 "Ricoh 5C822 SD/MMC" rev 0x19: apic 2 int 20 (irq 11) sdmmc0 at sdhc0 "Ricoh 5C843 MMC" rev 0x01 at pci3 dev 1 function 1 not configured pchb1 at pci0 dev 24 function 0 "AMD AMD64 0Fh HyperTransport" rev 0x00 pchb2 at pci0 dev 24 function 1 "AMD AMD64 0Fh Address Map" rev 0x00 pchb3 at pci0 dev 24 function 2 "AMD AMD64 0Fh DRAM Cfg" rev 0x00 kate0 at pci0 dev 24 function 3 "AMD AMD64 0Fh Misc Cfg" rev 0x00: core rev BH-F2 usb1 at ohci0: USB revision 1.0 uhub1 at usb1 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb2 at ohci1: USB revision 1.0 uhub2 at usb2 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb3 at ohci2: USB revision 1.0 uhub3 at usb3 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb4 at ohci3: USB revision 1.0 uhub4 at usb4 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb5 at ohci4: USB revision 1.0 uhub5 at usb5 "ATI OHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pms0 mux 0 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 mtrr: Pentium Pro MTRR support uhidev0 at uhub3 port 1 configuration 1 interface 0 "Microsoft Basic Optical Mouse" rev 1.10/0.00 addr 2 uhidev0: iclass 3/1 ums0 at uhidev0: 3 buttons, Z dir wsmouse1 at ums0 mux 0 softraid0 at root root on sd0a swap on sd0b dump on sd0b bce0: Tx packet consumes too many DMA segments, dropping... bce0: Tx packet consumes too many DMA segments, dropping... bce0: Tx packet consumes too many DMA segments, dropping... bce0: Tx packet consumes too many DMA segments, dropping... bce0: Tx packet consumes too many DMA segments, dropping... bce0: Tx packet consumes too many DMA segments, dropping... bce0: Tx packet consumes too many DMA segments, dropping... bce0: Tx packet consumes too many DMA segments, dropping... bce0: Tx packet consumes too many DMA segments, dropping...
