Date: Sun, 3 Jul 2005 22:56:33 +0200 From: =?ISO-8859-1?Q?C=E9dric?= Jonas <cedric@virtual-globe.net> To: freebsd-stable@freebsd.org, freebsd-hackers@freebsd.org Subject: Panic in bus_dmamap_load_mbuf (pmap.h:201) Message-ID: <20050703225633.077566f4@ganymed.decemplex.loc>
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Hello,
Since 1 or 2 months, I experienced panics when I use the ath interface of o=
ur server (configured as hostap). Also, the system hangs often (without pan=
ic) during the boot process at the "Setting hostname: icarus." level. Becau=
se I had absolutely no time, I couldn't learn to use the kernel debugger be=
fore.=20
icarus# uname -a
FreeBSD icarus 5.4-STABLE FreeBSD 5.4-STABLE #0: Sun Jul 3 15:14:13 CEST =
2005 cedric@icarus:/usr/obj/usr/src/sys/ICARUS i386
Sources are from July, 1
debug.mpsafenet: 1
After compiling the kernel with debug options, I get the following during t=
he boot process:
Setting hostname: icarus.
lock order reversal
1st 0xc2cd4c6c ath0 (network driver) @ /usr/src/sys/dev/ath/if_ath.c:893
2nd 0xc30583c8 user map (user map) @ /usr/src/sys/vm/vm_map.c:2998
I suppose this explains the occasional hangups during the boot process?
The following was obtained after a panic (which occured only when I use the=
ath interface):
icarus# kgdb kernel.debug /var/crash/vmcore.86
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so=
: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you a=
re
welcome to change it and/or distribute copies of it under certain conditio=
ns.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd".
#0 doadump () at pcpu.h:160
160 __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td));
(kgdb) list *0xc0695dfd
0xc0695dfd is in bus_dmamap_load_mbuf (pmap.h:201).
196
197 if ((pa =3D PTD[va >> PDRSHIFT]) & PG_PS) {
198 pa =3D (pa & ~(NBPDR - 1)) | (va & (NBPDR - 1));
199 } else {
200 pa =3D *vtopte(va);
201 pa =3D (pa & PG_FRAME) | (va & PAGE_MASK);
202 }
203 return pa;
204 }
205
(kgdb) backtrace
#0 doadump () at pcpu.h:160
#1 0xc05241dc in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:=
410
#2 0xc05244f1 in panic (fmt=3D0xc06f0b1f "%s") at /usr/src/sys/kern/kern_=
shutdown.c:566
#3 0xc06a96ec in trap_fatal (frame=3D0xe5ba3b80, eva=3D3221110944) at /us=
r/src/sys/i386/i386/trap.c:817
#4 0xc06a941f in trap_pfault (frame=3D0xe5ba3b80, usermode=3D0, eva=3D322=
1110944) at /usr/src/sys/i386/i386/trap.c:735
#5 0xc06a9085 in trap (frame=3D
{tf_fs =3D -440795112, tf_es =3D -1068433392, tf_ds =3D -1027473392, =
tf_edi =3D -1026674344, tf_esi =3D -1026496768, tf_ebp =3D -440779748, tf_i=
sp =3D -440779860, tf_ebx =3D 0, tf_edx =3D 0, tf_ecx =3D -117273402, tf_ea=
x =3D 1019944, tf_trapno =3D 12, tf_err =3D 0, tf_eip =3D -1066836483, tf_c=
s =3D 8, tf_eflags =3D 66055, tf_esp =3D -440779804, tf_ss =3D -1068382496}=
) at /usr/src/sys/i386/i386/trap.c:425
#6 0xc069796a in calltrap () at /usr/src/sys/i386/i386/exception.s:140
#7 0xe5ba0018 in ?? ()
#8 0xc0510010 in exit1 (td=3D0xc2cba680, rv=3D-440779764) at /usr/src/sys=
/kern/kern_exit.c:394
#9 0xc0494122 in ath_rxbuf_init (sc=3D0xc2cd4000, bf=3D0xc2ce3158) at /us=
r/src/sys/dev/ath/if_ath.c:1601
#10 0xc0494560 in ath_rx_proc (arg=3D0xc2cd4000, npending=3D1) at /usr/src=
/sys/dev/ath/if_ath.c:1818
#11 0xc0540c57 in taskqueue_run (queue=3D0xc2c94dc0) at /usr/src/sys/kern/=
subr_taskqueue.c:191
#12 0xc0540cbe in taskqueue_swi_run (dummy=3D0x0) at /usr/src/sys/kern/sub=
r_taskqueue.c:213
#13 0xc0512ad8 in ithread_loop (arg=3D0xc2c28300) at /usr/src/sys/kern/ker=
n_intr.c:547
#14 0xc0511ed4 in fork_exit (callout=3D0xc05129b4 <ithread_loop>, arg=3D0x=
c2c28300, frame=3D0xe5ba3d38) at /usr/src/sys/kern/kern_fork.c:791
#15 0xc06979cc in fork_trampoline () at /usr/src/sys/i386/i386/exception.s=
:209
(kgdb)=20
My kernel config:
machine i386
cpu I686_CPU
ident ICARUS
=09
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for devices.
=09
makeoptions DEBUG=3D-g # Build kernel with gdb(1) debug symbols
=09
options KDB # Enable kernel debugger support.
options GDB # Support remote GDB.
options INVARIANTS # Enable calls of extra sanity checking
options INVARIANT_SUPPORT # Extra sanity checks of internal structures, r=
equired by INVARIANTS
options WITNESS # Enable checks to detect deadlocks and cycles
options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
=09
options SCHED_4BSD # 4BSD scheduler
options INET # InterNETworking
options INET6 # IPv6 communications protocols
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on big directories
options MD_ROOT # MD is a potential root device
options NFSCLIENT # Network Filesystem Client
options NFSSERVER # Network Filesystem Server
options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_GPT # GUID Partition Tables.
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options SCSI_DELAY=3D15000 # Delay (in ms) before probing SCSI
options KTRACE # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~128k to driver.
options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~215k to driver.
options ADAPTIVE_GIANT # Giant mutex is adaptive.
=09
device apic # I/O APIC
=09
# Bus support. Do not remove isa, even if you have no isa slots
device isa
device pci
=09
# Floppy drives
device fdc
=09
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
device ataraid # ATA RAID drives
device atapicd # ATAPI CDROM drives
device atapifd # ATAPI floppy drives
device atapist # ATAPI tape drives
options ATA_STATIC_ID # Static device numbering
=09
# SCSI peripherals
device scbus # SCSI bus (required for SCSI)
device ch # SCSI media changers
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
device cd # CD
device pass # Passthrough device (direct SCSI access)
device ses # SCSI Environmental Services (and SAF-TE)
=09
# SCSI controller
device sym
=09
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc # AT keyboard controller
device atkbd # AT keyboard
device psm # PS/2 mouse
=09
device vga # VGA video card driver
=09
device splash
device green_saver
=09
# syscons is the default console driver, resembling an SCO console
device sc
=09
device agp # support several AGP chipsets
=09
# Floating point support - do not disable.
device npx
=09
# Power management support (see NOTES for more options)
device apm
# Add suspend/resume support for the i8254.
device pmtimer
=09
# Serial (COM) ports
#device sio # 8250, 16[45]50 based serial ports
=09
# Parallel port
device ppc
device ppbus # Parallel port bus (required)
device lpt # Printer
device plip # TCP/IP over parallel
device ppi # Parallel port interface device
device vpo # Requires scbus and da
=09
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NIC=
s!
device miibus # MII bus support
device fxp # Intel EtherExpress PRO/100B (82557, 82558)
device rl # RealTek 8129/8139
=09
# 'device ed' requires 'device miibus'
device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
=09
# Wireless NIC cards
device wlan # 802.11 support
device ath
device ath_hal # Atheros HAL (includes binary component)
=09
# Pseudo devices.
device loop # Network loopback
device mem # Memory and kernel memory devices
device io # I/O device
device random # Entropy device
device ether # Ethernet support
device sl # Kernel SLIP
device ppp # Kernel PPP
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
device md # Memory "disks"
device gif # IPv6 and IPv4 tunneling
device faith # IPv6-to-IPv4 relaying (translation)
=09
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
device bpf # Berkeley packet filter
=09
# USB support
device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
device usb # USB Bus (required)
device udbp # USB Double Bulk Pipe devices
device ugen # Generic
device uhid # "Human Interface Devices"
device ukbd # Keyboard
device ulpt # Printer
device umass # Disks/Mass storage - Requires scbus and da
device ums # Mouse
device urio # Diamond Rio 500 MP3 player
device uscanner # Scanners
=09
# PF
device pf #PF OpenBSD packet-filter firewall
device pflog #logging support interface for PF
device pfsync #synchronization interface for PF
options ALTQ
options ALTQ_PRIQ # Priority Queueing
options ALTQ_NOPCC # Required for SMP build
=09
# PPPoE DSL
options NETGRAPH
options NETGRAPH_SOCKET
options NETGRAPH_PPPOE
options NETGRAPH_ETHER
=09
# SMP
options SMP # Symmetric MultiProcessor Kernel
options MPTABLE_FORCE_HTT # Enable HTT CPUs with the MP Table
options PREEMPTION
=09
options CPU_ENABLE_TCC
options CPU_FASTER_5X86_FPU
options CPU_SUSP_HLT
=09
# Save kernel config in binary's
options INCLUDE_CONFIG_FILE
=09
# Disks
options QUOTA #enable disk quotas
=09
# Posix 1003.1b
options P1003_1B_SEMAPHORES
=09
# Sound
# device sound
# device snd_ich
# device speaker #Play IBM BASIC-style noises out your speaker
=09
# SMBus
device smbus # Bus support, required for smb below.
device ichsmb
device smb
=09
# Reboot after panic
options PANIC_REBOOT_WAIT_TIME=3D60
=09
# Emulation
options COMPAT_LINUX
options COMPAT_AOUT
options LINPROCFS
=09
# Filesystems
options NULLFS #NULL filesystem
Another important detail could be that I use a dual Xeon box, which HT enab=
led, which results in 4 logical CPU's and explain why anybody reported this=
problem before?!
I hope somebody could help, if you need additional informations, let me kno=
w.
Thank you.
--=20
Best regards,=20
C=E9dric Jonas
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