Kernel page fault with non-sleepable locks held error with kernel r270837

Hiroo Ono (小野寛生) hiroo.ono+freebsd at
Sun Aug 31 05:01:20 UTC 2014


During upgrading world and kernel from r26939 to r270837, I got the
following problem.
a) the arch is i386
b) kernel is of r270837, userland is of r26939 (make kernel is done
and rebooted, make installworld not yet).
c) booting in single user mode is OK.
d) during startup of multi-user mode, when dhclient is run, the
following message appears, and the system freezes:

Starting devd.
wlan0: link state changed to UP
Starting webcamd.
Attached to ugen4.2[0]
Starting webcready running for ugen4.2.0
/usr/local/etc/rc.d/webcamd: WARNING: failed to start webcamd
Starting dhclient.
DHCPREQUEST on wlan0 to port 67
Kernel page fault with the following non-sleepable locks held:
exclusive sleep mutex so_rcv (so_rcv) r = 0 (0xc713f078) locked @
KDB stack backtrace:
 rapper+0x2d/frame 0xe8f42710
kdb_backtrace(c11aaf80,0,c713f078,c119a9e8,7d5,...) at 0xc0b4b160 =
kdb_backtrace+0x30/frame 0xe8f42778
witness_warn(5,0,c136b0a0,76fb000,c1833d58,...) at 0xc8b68a52 =
witness_warn+0x402/frame 0xe8f427c8
trap_pfault(18,3fd,c0dcc2d0,c1f64a80,c75fa000,...) at 0xc102f46b =
trap_pfault+0x5b/frame 0xe8f42840
trap(e8f42988) at 0xc102edcf = trap+0x6cf/frame 0xe8f4297c
calltrap() at 0xc1017c4c = calltrap+0x6/frame 0xe8f4297c
filt_soread(c75f7828,0,c119a9e8,48d,0,...) at 0xc0b9837d =
filt_soread+0x9d/frame 0xe8f429f0
kqueue_register(c6f59310,1,1,4f5,0,...) at 0xc0ad1457 =
kqueue_register+0x807/frame 0xe8f42a68
kern_kevent(c6f59310,7,12c217ce1 = Xint0x80), eip =
instruction poi         = 0x28:0xe8f429f0     fff, type 0x1b
DHCPREQUEST on wlan0 to port 67

e) kernel configuration differs from GENERIC on the following point
options      VIMAGE
options      DDB_NUMSYM
nocpu        I486_CPU
nooptions  VESA

Does the problem come from kernel and userland not in sync? or there
are other problems?
Is there any workaround?
Attached is the dmesg of r270837 on the machine.
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FreeBSD 11.0-CURRENT #6 r270837: Sun Aug 31 11:32:20 JST 2014
    root at i386
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
WARNING: WITNESS option enabled, expect reduced performance.
VT: running with driver "vga".
info: [drm] Initialized drm 1.1.0 20060810
CPU: Intel(R) Atom(TM) CPU N270   @ 1.60GHz (1596.04-MHz 686-class CPU)
  Origin="GenuineIntel"  Id=0x106c2  Family=0x6  Model=0x1c  Stepping=2
  AMD Features2=0x1<LAHF>
  TSC: P-state invariant, performance statistics
real memory  = 1073741824 (1024 MB)
avail memory = 1013121024 (966 MB)
Event timer "LAPIC" quality 400
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
FreeBSD/SMP: 1 package(s) x 1 core(s) x 2 HTT threads
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP/HT): APIC ID:  1
WARNING: VIMAGE (virtualized network stack) is a highly experimental feature.
ioapic0: Changing APIC ID to 4
ioapic0 <Version 2.0> irqs 0-23 on motherboard
Cuse v0.1.34 @ /dev/cuse
kbd1 at kbdmux0
random: <Software, Yarrow> initialized
acpi0: <ACRSYS ACRPRDCT> on motherboard
acpi0: Power Button (fixed)
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
atrtc0: <AT realtime clock> port 0x70-0x77 on acpi0
atrtc0: Warning: Couldn't map I/O.
Event timer "RTC" frequency 32768 Hz quality 0
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff irq 0,8 on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 950
Event timer "HPET" frequency 14318180 Hz quality 450
Event timer "HPET1" frequency 14318180 Hz quality 440
Event timer "HPET2" frequency 14318180 Hz quality 440
attimer0: <AT timer> port 0x40-0x43,0x50-0x53 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
acpi_ec0: <Embedded Controller: GPE 0x17> port 0x62,0x66 on acpi0
acpi_button0: <Power Button> on acpi0
acpi_lid0: <Control Method Lid Switch> on acpi0
acpi_button1: <Sleep Button> on acpi0
battery0: <ACPI Control Method Battery> on acpi0
acpi_acad0: <AC Adapter> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0x60c0-0x60c7 mem 0x58480000-0x584fffff,0x40000000-0x4fffffff,0x58500000-0x5853ffff irq 16 at device 2.0 on pci0
agp0: <Intel 945GME SVGA controller> on vgapci0
agp0: aperture size is 256M, detected 7932k stolen memory
drmn0: <Intel i945GME> on vgapci0
info: [drm] AGP at 0x40000000 256MB
iicbus0: <Philips I2C bus> on iicbb0 addr 0xc1
iic0: <I2C generic I/O> on iicbus0
iic1: <I2C generic I/O> on iicbus1
iicbus2: <Philips I2C bus> on iicbb1 addr 0x0
iic2: <I2C generic I/O> on iicbus2
iic3: <I2C generic I/O> on iicbus3
iicbus4: <Philips I2C bus> on iicbb2 addr 0x0
iic4: <I2C generic I/O> on iicbus4
iic5: <I2C generic I/O> on iicbus5
iicbus6: <Philips I2C bus> on iicbb3 addr 0x0
iic6: <I2C generic I/O> on iicbus6
iic7: <I2C generic I/O> on iicbus7
iicbus8: <Philips I2C bus> on iicbb4 addr 0x0
iic8: <I2C generic I/O> on iicbus8
iic9: <I2C generic I/O> on iicbus9
iicbus10: <Philips I2C bus> on iicbb5 addr 0x0
iic10: <I2C generic I/O> on iicbus10
iic11: <I2C generic I/O> on iicbus11
iicbus12: <Philips I2C bus> on iicbb6 addr 0x0
iic12: <I2C generic I/O> on iicbus12
iic13: <I2C generic I/O> on iicbus13
iicbus14: <Philips I2C bus> on iicbb7 addr 0x0
iic14: <I2C generic I/O> on iicbus14
iic15: <I2C generic I/O> on iicbus15
info: [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
info: [drm] Driver supports precise vblank timestamp query.
info: [drm] failed to find VBIOS tables
drmn0: taking over the fictitious range 0x40000000-0x4ffff000
info: [drm] initialized overlay support
fbd0 on drmn0
VT: Replacing driver "vga" with new "fb".
info: [drm] Initialized i915 1.6.0 20080730
vgapci0: Boot video device
vgapci1: <VGA-compatible display> mem 0x58400000-0x5847ffff at device 2.1 on pci0
hdac0: <Intel 82801G HDA Controller> mem 0x58540000-0x58543fff irq 16 at device 27.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 28.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> at device 28.1 on pci0
pci2: <ACPI PCI bus> on pcib2
re0: <RealTek 810xE PCIe 10/100baseTX> port 0x3000-0x30ff mem 0x51010000-0x51010fff,0x51000000-0x5100ffff irq 17 at device 0.0 on pci2
re0: Using 1 MSI-X message
re0: turning off MSI enable bit.
re0: ASPM disabled
re0: Chip rev. 0x24800000
re0: MAC rev. 0x00200000
miibus0: <MII bus> on re0
rlphy0: <RTL8201L 10/100 media interface> PHY 1 on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto, auto-flow
re0: Ethernet address: 00:23:8b:03:eb:24
pcib3: <ACPI PCI-PCI bridge> at device 28.2 on pci0
pci3: <ACPI PCI bus> on pcib3
ath0: <Atheros 5424/2424> mem 0x55200000-0x5520ffff irq 18 at device 0.0 on pci3
ath0: AR2425 mac 14.2 RF5424 phy 7.0
ath0: 2GHz radio: 0x0000; 5GHz radio: 0x00a2
pcib4: <ACPI PCI-PCI bridge> at device 28.3 on pci0
pcib4: failed to allocate initial I/O port window: 0x1000-0x1fff
pci4: <ACPI PCI bus> on pcib4
sdhci_pci0: <JMicron JMB38X SD> mem 0x54100200-0x541002ff irq 19 at device 0.2 on pci4
sdhci_pci0: 1 slot(s) allocated
uhci0: <Intel 82801G (ICH7) USB controller USB-A> port 0x6080-0x609f irq 16 at device 29.0 on pci0
uhci0: LegSup = 0x2f00
usbus0 on uhci0
uhci1: <Intel 82801G (ICH7) USB controller USB-B> port 0x6060-0x607f irq 17 at device 29.1 on pci0
uhci1: LegSup = 0x2f00
usbus1 on uhci1
uhci2: <Intel 82801G (ICH7) USB controller USB-C> port 0x6040-0x605f irq 18 at device 29.2 on pci0
uhci2: LegSup = 0x2f00
usbus2 on uhci2
uhci3: <Intel 82801G (ICH7) USB controller USB-D> port 0x6020-0x603f irq 19 at device 29.3 on pci0
uhci3: LegSup = 0x2f00
usbus3 on uhci3
ehci0: <Intel 82801GB/R (ICH7) USB 2.0 controller> mem 0x58544400-0x585447ff irq 16 at device 29.7 on pci0
usbus4: EHCI version 1.0
usbus4 on ehci0
pcib5: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci5: <ACPI PCI bus> on pcib5
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH7M SATA150 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x60a0-0x60af irq 17 at device 31.2 on pci0
ata0: <ATA channel> at channel 0 on atapci0
ata1: <ATA channel> at channel 1 on atapci0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
pmtimer0 on isa0
orm0: <ISA Option ROM> at iomem 0xcf000-0xcffff pnpid ORM0000 on isa0
ppc0: parallel port not found.
est0: <Enhanced SpeedStep Frequency Control> on cpu0
est1: <Enhanced SpeedStep Frequency Control> on cpu1
Timecounters tick every 1.000 msec
hdacc0: <Realtek ALC268 HDA CODEC> at cad 0 on hdac0
hdaa0: <Realtek ALC268 Audio Function Group> at nid 1 on hdacc0
pcm0: <Realtek ALC268 (Analog 2.0+HP/2.0)> at nid 20,21 and 18 on hdaa0
pcm1: <Realtek ALC268 (Left Analog Mic)> at nid 24 on hdaa0
random: unblocking device.
usbus0: 12Mbps Full Speed USB v1.0
usbus1: 12Mbps Full Speed USB v1.0
usbus2: 12Mbps Full Speed USB v1.0
usbus3: 12Mbps Full Speed USB v1.0
usbus4: 480Mbps High Speed USB v2.0
ugen4.1: <Intel> at usbus4
uhub0: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus4
ugen3.1: <Intel> at usbus3
uhub1: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus3
ugen2.1: <Intel> at usbus2
uhub2: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus2
ugen1.1: <Intel> at usbus1
uhub3: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
ugen0.1: <Intel> at usbus0
uhub4: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
uhub1: 2 ports with 2 removable, self powered
uhub2: 2 ports with 2 removable, self powered
uhub3: 2 ports with 2 removable, self powered
uhub4: 2 ports with 2 removable, self powered
ada0 at ata0 bus 0 scbus0 target 0 lun 0
ada0: <WDC WD1600BEVT-22ZCT0 11.01A11> ATA-8 SATA 2.x device
ada0: Serial Number WD-WXE908P42038
ada0: 150.000MB/s transfers (SATA, UDMA5, PIO 8192bytes)
ada0: 152627MB (312581808 512 byte sectors: 16H 63S/T 16383C)
ada0: Previously was known as ad0
SMP: AP CPU #1 Launched!
WARNING: WITNESS option enabled, expect reduced performance.
Root mount waiting for: usbus4
Root mount waiting for: usbus4
uhub0: 8 ports with 8 removable, self powered
Root mount waiting for: usbus4
ugen4.2: <SuYin> at usbus4
Trying to mount root from ufs:/dev/ada0p2 [rw]...
ugen4.3: <UFD 2.0> at usbus4
umass0: <UFD 2.0 Silicon-Power32G, class 0/0, rev 2.00/1.00, addr 3> on usbus4
umass0:  SCSI over Bulk-Only; quirks = 0x4100
umass0:2:0: Attached to scbus2
da0 at umass-sim0 bus 0 scbus2 target 0 lun 0
da0: <UFD 2.0 Silicon-Power32G PMAP> Removable Direct Access SCSI-4 device 
da0: Serial Number 12060164020E60026880FB18954
da0: 40.000MB/s transfers
da0: 29557MB (60532992 512 byte sectors: 255H 63S/T 3768C)
da0: quirks=0x2<NO_6_BYTE>

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