panic with high load and rum-device inserted
Maxim Bourmistrov
Severity: serious
Priority: high
Category:
Class: sw-bug
Release: current
Environment:
System : OpenBSD 4.0-current
Architecture: OpenBSD.i386
Machine : i386
Description:
After todays cvsup I decided to compile myself a new kernel.
While compiling I felt to play with my wlan-devices.
2min after inserting CWD-854f usb-device(rum) compile process slowed down
and machine was almost in freeze state.
I faild to reproduce a complete bugrepport as 'ps' output was missed.
I tried second time with same result (I 'halt -p' machine and tried to
reproduce this panic once again.). Well, result was same - panic, but
trace was different.
Note that first panic was produced without re-inserting rum-device.
(As your may see in dmesg I re-inserted rum-device to trigger this panic).
Below: 1. a trace-output from first panic. 2. dmesg from second attemt.
How-To-Repeat:
Start compiling a new kernel then insert an rum-usb-device.
Fix:
None
First trace-output:
panic: pool_get: vmmpepl: nmissing inconsistent
Stopped at Debugger+0x4: leave
RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC!
DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION!
ddb> Debugger(4,d078fb00,e8bb3d30,d7404110,d078fb00) at Debugger+0x4
panic(d067d2c0,d0695ed1,8,246,d751b97c) at panic+0x63
pool_get(d078fb00,2,4000,e8bb3e94,703) at pool_get+0xfd
uvm_rb_remove(d751b97c,10012,d751ba20,0,0) at uvm_rb_remove+0x13d
uvm_map_p(d751b97c,e8bb3e94,4000,0,ffffffff,ffffffff,1000,80713,d751ddfc,875f9000,e8bb3df0,d046ab87) at uvm_map_p+0x1bd
uvm_mmap(d751b97c,e8bb3e94,4000,3,7,1002,0,0,0,e6a3aaa,d751ddfc,b66000) at uvm_mmap+0x112
sys_mmap(d751ddfc,e8bb3f68,e8bb3f58,1000,2997) at sys_mmap+0x252
syscall() at syscall+0x246
--- syscall (number 198) ---
Second dmesg:
OpenBSD 4.0-current (GENERIC) #1: Fri Jan 5 15:31:20 CET 2007
ro...@cerberus.home.unixconn.com:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel(R) Celeron(R) CPU 2.40GHz ("GenuineIntel" 686-class) 2.41 GHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,CNXT-ID
real mem = 804859904 (785996K)
avail mem = 725561344 (708556K)
using 4256 buffers containing 40366080 bytes (39420K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(ab) BIOS, date 08/13/03, BIOS32 rev. 0 @ 0xf10c0, SMBIOS rev. 2.3 @ 0xf3040 (49 entries)
bios0: ASUSTeK Computer INC. P4S8X-X
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
apm0: flags 30102 dobusy 0 doidle 1
pcibios0 at bios0: rev 2.1 @ 0xf0000/0x1722
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf1660/192 (10 entries)
pcibios0: PCI Interrupt Router at 000:02:0 ("SiS 963 ISA" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0xf400 0xd0000/0x4000!
acpi at mainbus0 not configured
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "SiS 648 PCI" rev 0x11
ppb0 at pci0 dev 1 function 0 "SiS 648FX AGP" rev 0x00
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "NVIDIA GeForce FX 5200" rev 0xa1
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
pcib0 at pci0 dev 2 function 0 "SiS 963 ISA" rev 0x25
pciide0 at pci0 dev 2 function 5 "SiS 5513 EIDE" rev 0x00: 648: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility
wd0 at pciide0 channel 0 drive 0: <ST313032A>
wd0: 16-sector PIO, LBA, 12419MB, 25434228 sectors
wd1 at pciide0 channel 0 drive 1: <ST3120026A>
wd1: 16-sector PIO, LBA48, 114473MB, 234441648 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 5
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <HL-DT-ST, CD-RW GCE-8320B, 1.03> SCSI0 5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2
auich0 at pci0 dev 2 function 7 "SiS 7012 AC97" rev 0xa0: irq 3, SiS7012 AC97
ac97: codec id 0x41445370 (Analog Devices AD1980)
ac97: codec features headphone, 20 bit DAC, No 3D Stereo
audio0 at auich0
ohci0 at pci0 dev 3 function 0 "SiS 5597/5598 USB" rev 0x0f: irq 7, version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: SiS OHCI root hub, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
ohci1 at pci0 dev 3 function 1 "SiS 5597/5598 USB" rev 0x0f: irq 5, version 1.0, legacy support
usb1 at ohci1: USB revision 1.0
uhub1 at usb1
uhub1: SiS OHCI root hub, rev 1.00/1.00, addr 1
uhub1: 3 ports with 3 removable, self powered
ehci0 at pci0 dev 3 function 2 "SiS 7002 USB" rev 0x00: irq 6
usb2 at ehci0: USB revision 2.0
uhub2 at usb2
uhub2: SiS EHCI root hub, rev 2.00/1.00, addr 1
uhub2: 6 ports with 6 removable, self powered
fxp0 at pci0 dev 9 function 0 "Intel 8255x" rev 0x02, i82557: irq 10, address 00:a0:c9:76:16:95
inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 0
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
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
biomask ebe5 netmask efe5 ttymask ffe7
pctr: user-level cycle counter enabled
uhub3 at uhub1 port 2
uhub3: Philips Semiconductors hub, rev 1.10/1.10, addr 2
uhub3: 4 ports with 4 removable, self powered
umass0 at uhub3 port 3 configuration 1 interface 0
umass0: Kingston DataTraveler 2.0, rev 1.10/1.00, addr 3
umass0: using SCSI over Bulk-Only
scsibus1 at umass0: 2 targets
sd0 at scsibus1 targ 1 lun 0: <Kingston, DataTraveler 2.0, 4.10> SCSI2 0/direct removable
sd0: 246MB, 246 cyl, 64 head, 32 sec, 512 bytes/sec, 503808 sec total
dkcsum: wd0 matches BIOS drive 0x80
dkcsum: wd1 matches BIOS drive 0x81
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302
/dev/wd1l: file system not clean; please fsck(8)
rum0 at uhub3 port 1
rum0: Ralink 802.11 bg WLAN, rev 2.00/0.01, addr 4
rum0: MAC/BBP RT2573 (rev 0x2573a), RF RT2528, address 00:08:a1:94:55:55
rum0: at uhub3 port 1 (addr 4) disconnected
rum0 detached
rum0 at uhub3 port 1
rum0: Ralink 802.11 bg WLAN, rev 2.00/0.01, addr 4
rum0: MAC/BBP RT2573 (rev 0x2573a), RF RT2528, address 00:08:a1:94:55:55
panic: pmap_zero_phys: lock botch
Stopped at Debugger+0x4: leave
RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC!
DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION!
ddb> Debugger(d0795188,d0750f40,e8bb3dd0,cfb42470,d12dca44) at Debugger+0x4
panic(d06a0a44,0,d076c4c8,d0750f40,d12dcf6c) at panic+0x63
pmap_zero_phys_86(2a97e000,0,e8bb3e00,d0436010,80) at pmap_zero_phys_86+0x62
pmap_zero_page(d12dca44,7d2e,e8bb3e30,d0437127) at pmap_zero_page+0x15
uvm_pagealloc_strat(0,0,0,e8a5fa70,2,0,0,4) at uvm_pagealloc_strat+0x1eb
uvm_fault(d751db34,8bb80000,0,3,e8bb3f98) at uvm_fault+0x946
trap() at trap+0x265
--- trap (number 6) ---