Hi
Ive finally got the current version running and the problem below has
disappeared. I was wondering however if the problem has actually been
solved.
The line of code that Im crashing on is line 3005 of pmap.c in version 4.0:
3005 if (pve->pv_ptp && (PDE(pve->pv_pmap,
3006 pdei(pve->pv_va)) & PG_FRAME) !=
3007 VM_PAGE_TO_PHYS(pve->pv_ptp)) {
Specifically its crashing on PDE(pve->pv_pmap, pdei(pve->pv_val) because
of a page fault. This code has disappeared in -current, but does anybody
who was working on this section of code now why I was having this
problem or if its been fixed?
Thank you
Jonathan Steel
Jon Steel wrote:
> Hi
>
> Im having a very similar problem as the one reported in Bug Query 5374.
> Im trying to solve the problem but Im finding it very hard to even get
> started. Is there somewhere besides the code that I can start to try and
> understand how SMP is being handled?
>
> http://cvs.openbsd.org/cgi-bin/query-pr-wrapper?full=yes&numbers=5374
>
> I can usually duplicate the crash by running the follwing script several
> times concurrently.
>
> #!/usr/bin/perl
>
> system("tcpdump -i em1 -w /var/crashTest1.pcap&");
> system("tcpdump -i em1 -w /var/crashTest2.pcap&");
> system("tcpdump -i em1 -w /var/crashTest3.pcap&");
> system("tcpdump -i em1 -w /var/crashTest4.pcap&");
> system("tcpdump -i em1 -w /var/crashTest5.pcap&");
> system("tcpdump -i em1 -w /var/crashTest6.pcap&");
> system("tcpdump -i em1 -w /var/crashTest7.pcap&");
>
> while (1) {
> system("nmap 192.168.66.90&");
> }
>
> Then after about an hour, when you try and reboot, I get an error:
>
> uvm_fault(0x..., 0x..., 0, 1) -> e
> kernel: page fault trap, code = 0
> stopped at pmap_page_remove_86+0x114:
> 0(%eax, %edx, 4), %eax
>
> The trace output is:
>
> pmap_page_remove_86(d0d31420,c0,e9b57e2c,d04adeb9,e99f) at
> pmap_page_remove_86+0x114
> uvm_vnp_terminate(d8034e04,0,0,0,0,14,0,d7e95004) at uvm_vnpterminate+0x31f
> uvm_attach(d8034e04,0,2,0,d7f38378) at uvn_attach+0x2b5
> uvm_unmap_detach(d7e959a4,0,d7f3841c,1) at uvm_unmap_detach+-x62
> uvmspace_free(d7f38378,6,d08120e0) at uvmspace_free+0xfd
> uvm_exit(d7fbb868,14,8,286) at uvm_exit+0x19
> reaper(d80df430) at reaper+0x90
> Bad frame pointer: 0xd0913eb8
>
>
> A couple times the error has also occured on its own without saying
> 'reboot' when running a ton of nmaps and tcpdumps at the same time.
>
> This trace is remarkably similar to the one in Bug Query 5374.
> Additionally I am using the same processor as he is. There is an unkown
> core statement in my dmesg but both cores seem to be working correctly.
> Here is my dmesg:
>
> OpenBSD 4.0 (GENERIC.MP) #936: Sat Sep 16 19:27:28 MDT 2006
> [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC.MP
> cpu0: Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz ("GenuineIntel" 686-class)
> 2.13 GHz
> cpu0:
> FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CF
> LUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,VMX,EST,TM2,CX16
> real mem = 2145869824 (2095576K)
> avail mem = 1949290496 (1903604K)
> using 4256 buffers containing 107397120 bytes (104880K) of memory
> mainbus0 (root)
> bios0 at mainbus0: AT/286+(e6) BIOS, date 10/30/06, BIOS32 rev. 0 @
> 0xfd470, SMB IOS rev. 2.51 @ 0x7feea000 (33 entries)
> bios0: Supermicro PDSMi
> pcibios0 at bios0: rev 2.1 @ 0xfd470/0xb90
> pcibios0: PCI BIOS has 20 Interrupt Routing table entries
> pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801GB LPC" rev 0x00)
> pcibios0: PCI bus #15 is the last bus
> bios0: ROM list: 0xc0000/0xb000 0xcb000/0x1000 0xcc000/0x1000 0xcd000/0x1000
> ipmi at mainbus0 not configured
> mainbus0: Intel MP Specification (Version 1.4) (INTEL MUKILTEO )
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: unknown Core FSB_FREQ value 0 (0x42080000)
> cpu0: apic clock running at 266 MHz
> cpu1 at mainbus0: apid 1 (application processor)
> cpu1: Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz ("GenuineIntel" 686-class)
> 2.13 GHz
> cpu1:
> FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CF
> LUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,VMX,EST,TM2,CX16
> mainbus0: bus 0 is type PCI
> mainbus0: bus 9 is type PCI
> mainbus0: bus 10 is type PCI
> mainbus0: bus 13 is type PCI
> mainbus0: bus 14 is type PCI
> mainbus0: bus 15 is type PCI
> mainbus0: bus 16 is type ISA
> ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
> ioapic1 at mainbus0: apid 3 pa 0xfec10000, version 20, 24 pins
> pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
> pchb0 at pci0 dev 0 function 0 "Intel E7230 MCH" rev 0xc0
> ppb0 at pci0 dev 1 function 0 "Intel E7230 PCIE" rev 0xc0
> pci1 at ppb0 bus 1
> ppb1 at pci0 dev 28 function 0 "Intel 82801GB PCIE" rev 0x01
> pci2 at ppb1 bus 9
> ppb2 at pci2 dev 0 function 0 "Intel PCIE-PCIE" rev 0x09
> pci3 at ppb2 bus 10
> em0 at pci3 dev 1 function 0 "Intel PRO/1000GT (82541GI)" rev 0x05: apic
> 3 int 0 (irq 11), address 00:0e:0c:b6:80:9e
> "Intel IOxAPIC" rev 0x09 at pci2 dev 0 function 1 not configured
> ppb3 at pci0 dev 28 function 4 "Intel 82801G PCIE" rev 0x01
> pci4 at ppb3 bus 13
> em1 at pci4 dev 0 function 0 "Intel PRO/1000MT (82573E)" rev 0x03: apic
> 2 int 16 (irq 11), address 00:30:48:8a:ca:f8
> ppb4 at pci0 dev 28 function 5 "Intel 82801G PCIE" rev 0x01
> pci5 at ppb4 bus 14
> em2 at pci5 dev 0 function 0 "Intel PRO/1000MT (82573L)" rev 0x00: apic
> 2 int 17 (irq 11), address 00:30:48:8a:ca:f9
> uhci0 at pci0 dev 29 function 0 "Intel 82801GB USB" rev 0x01: apic 2 int
> 23 (irq 10)
> usb0 at uhci0: USB revision 1.0
> uhub0 at usb0
> uhub0: Intel UHCI root hub, rev 1.00/1.00, addr 1
> uhub0: 2 ports with 2 removable, self powered
> uhci1 at pci0 dev 29 function 1 "Intel 82801GB USB" rev 0x01: apic 2 int
> 19 (irq 11)
> usb1 at uhci1: USB revision 1.0
> uhub1 at usb1
> uhub1: Intel UHCI root hub, rev 1.00/1.00, addr 1
> uhub1: 2 ports with 2 removable, self powered
> uhci2 at pci0 dev 29 function 2 "Intel 82801GB USB" rev 0x01: apic 2 int
> 18 (irq 5)
> usb2 at uhci2: USB revision 1.0
> uhub2 at usb2
> uhub2: Intel UHCI root hub, rev 1.00/1.00, addr 1
> uhub2: 2 ports with 2 removable, self powered
> uhci3 at pci0 dev 29 function 3 "Intel 82801GB USB" rev 0x01: apic 2 int
> 16 (irq 11)
> usb3 at uhci3: USB revision 1.0
> uhub3 at usb3
> uhub3: Intel UHCI root hub, rev 1.00/1.00, addr 1
> uhub3: 2 ports with 2 removable, self powered
> ehci0 at pci0 dev 29 function 7 "Intel 82801GB USB" rev 0x01: apic 2 int
> 23 (irq 10)
> usb4 at ehci0: USB revision 2.0
> uhub4 at usb4
> uhub4: Intel EHCI root hub, rev 2.00/1.00, addr 1
> uhub4: 8 ports with 8 removable, self powered
> ppb5 at pci0 dev 30 function 0 "Intel 82801BA AGP" rev 0xe1
> pci6 at ppb5 bus 15
> vga1 at pci6 dev 0 function 0 "ATI ES1000" rev 0x02
> wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
> wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
> ichpcib0 at pci0 dev 31 function 0 "Intel 82801GB LPC" rev 0x01: PM disabled
> pciide0 at pci0 dev 31 function 1 "Intel 82801GB IDE" rev 0x01: DMA,
> channel 0 c onfigured to compatibility, channel 1 configured to
> compatibility
> atapiscsi0 at pciide0 channel 0 drive 0
> scsibus0 at atapiscsi0: 2 targets
> cd0 at scsibus0 targ 0 lun 0: <TEAC, CD-224E-N, 1.AA> SCSI0 5/cdrom
> removable
> cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
> pciide0: channel 1 disabled (no drives)
> pciide1 at pci0 dev 31 function 2 "Intel 82801GR AHCI SATA" rev 0x01:
> DMA, chann el 0 wired to native-PCI, channel 1 wired to native-PCI
> pciide1: using apic 2 int 19 (irq 11) for native-PCI interrupt
> wd0 at pciide1 channel 0 drive 0: <WDC WD3200YS-01PGB0>
> wd0: 16-sector PIO, LBA48, 305245MB, 625142448 sectors
> wd1 at pciide1 channel 0 drive 1: <WDC WD5000YS-01MPB1>
> wd1: 16-sector PIO, LBA48, 476940MB, 976773168 sectors
> wd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 5
> wd1(pciide1:0:1): using PIO mode 4, Ultra-DMA mode 5
> wd2 at pciide1 channel 1 drive 0: <WDC WD5000YS-01MPB0>
> wd2: 16-sector PIO, LBA48, 476940MB, 976773168 sectors
> wd2(pciide1:1:0): using PIO mode 4, Ultra-DMA mode 5
> ichiic0 at pci0 dev 31 function 3 "Intel 82801GB SMBus" rev 0x01: apic 2
> int 19 (irq 11)
> iic0 at ichiic0
> lm1 at iic0 addr 0x2d: W83627HF
> "unknown" at iic0 addr 0x2f not configured
> isa0 at ichpcib0
> 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
> pcppi0 at isa0 port 0x61
> midi0 at pcppi0: <PC speaker>
> spkr0 at pcppi0
> lpt0 at isa0 port 0x378/4 irq 7
> lm0 at isa0 port 0x290/8: W83627HF
> lm1 detached
> npx0 at isa0 port 0xf0/16: using exception 16
> pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
> pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
> fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
> biomask 0 netmask 0 ttymask 0
> ioapic0: pin 16 shares different IPL interrupts (40..50), degraded
> performance
> pctr: 686-class user-level performance counters enabled
> mtrr: Pentium Pro MTRR support
> dkcsum: wd0 matches BIOS drive 0x80
> dkcsum: wd1 matches BIOS drive 0x82
> dkcsum: wd2 matches BIOS drive 0x81
> root on wd0a
> rootdev=0x0 rrootdev=0x300 rawdev=0x302
> cpu1: unknown Core FSB_FREQ value 0 (0x42080000)
>
> Thank You
>
> Jonathan Steel
