Alexey Sopov
2007-Feb-20 14:23 UTC
6.2-RELEASE + MPD 4.1 = Fatal trap 12: page fault while in kernel mode
Hi!
Yesterday I've updated my FreeBSD 6.0-RELEASE + mpd-4.0b4 up to
FreeBSD 6.2-RELEASE + mpd-4.1. And today I have a Fatal Trap.
Could you please help me to figure out what the problem consists in?
I folowed instructions described in handbook:
[intel][root]~# kgdb /usr/obj/usr/src/sys/router/kernel.debug
/var/crash/vmcore.77
kgdb: kvm_nlist(_stopped_cpus):
kgdb: kvm_nlist(_stoppcbs):
[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 are
welcome to change it and/or distribute copies of it under certain conditions.
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".
Unread portion of the kernel message buffer:
<6>external: promiscuous mode enabled
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xc
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc0596202
stack pointer = 0x28:0xe4fabb18
frame pointer = 0x28:0xe4fabb4c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 12 (swi4: clock sio)
Dumping 2047 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 2047MB (524032 pages) 2032 2016 2000 1984 1968 1952 1936 1920 1904
1888 1872 1856 1840 1824 1808 1792 1776 1760 1744 1728 1712 1696 1680 1664 1648
1632 1616 1600 1584 1568 1552 1536 1520 1504 1488 1472 1456 1440 1424 1408 1392
1376 1360 1344 1328 1312 1296 1280 1264 1248 1232 1216 1200 1184 1168 1152 1136
1120 1104 1088 1072 1056 1040 1024 1008 992 976 960 944 928 912 896 880 864 848
832 816 800 784 768 752 736 720 704 688 672 656 640 624 608 592 576 560 544 528
512 496 480 464 448 432 416 400 384 368 352 336 320 304 288 272 256 240 224 208
192 176 160 144 128 112 96 80 64 48 32 16
#0 doadump () at pcpu.h:165
165 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:165
#1 0xc04772e7 in db_fncall (dummy1=-1067884030, dummy2=0, dummy3=1,
dummy4=0xe4fab92c "")
at /usr/src/sys/ddb/db_command.c:492
#2 0xc0477780 in db_command_loop () at /usr/src/sys/ddb/db_command.c:350
#3 0xc0479600 in db_trap (type=12, code=0) at /usr/src/sys/ddb/db_main.c:222
#4 0xc0572252 in kdb_trap (type=0, code=0, tf=0xe4fabad8) at
/usr/src/sys/kern/subr_kdb.c:473
#5 0xc06ffae4 in trap_fatal (frame=0xe4fabad8, eva=12) at
/usr/src/sys/i386/i386/trap.c:828
#6 0xc06ffdeb in trap_pfault (frame=0xe4fabad8, usermode=0, eva=12)
at /usr/src/sys/i386/i386/trap.c:745
#7 0xc0700235 in trap (frame {tf_fs = 8, tf_es = 40, tf_ds = 40, tf_edi =
1352, tf_esi = 0, tf_ebp = -453330100, tf_isp = -453330172, tf_ebx = -940045504,
tf_edx = 20, tf_ecx = 1396, tf_eax = 44, tf_trapno = 12, tf_err = 0, tf_eip =
-1067884030, tf_cs = 32, tf_eflags = 66054, tf_esp = 256, tf_ss = -453330040})
at /usr/src/sys/i386/i386/trap.c:435
#8 0xc06ec0ea in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#9 0xc0596202 in m_copym (m=0x0, off0=1396, len=1376, wait=1)
at /usr/src/sys/kern/uipc_mbuf.c:397
#10 0xc061804a in ip_fragment (ip=0xcd365820, m_frag=0xe4fabc20, mtu=-940045504,
if_hwassist_flags=0, sw_csum=3073) at /usr/src/sys/netinet/ip_output.c:975
#11 0xc061a846 in ip_output (m=0xc6894300, opt=0xcd365820, ro=0xe4fabbec,
flags=1, imo=0x0,
inp=0x0) at /usr/src/sys/netinet/ip_output.c:804
#12 0xc0609742 in dummynet_send (m=0xc66b9e00) at
/usr/src/sys/netinet/ip_dummynet.c:771
#13 0xc0609a32 in dummynet (unused=0x0) at
/usr/src/sys/netinet/ip_dummynet.c:753
#14 0xc0563590 in softclock (dummy=0x0) at /usr/src/sys/kern/kern_timeout.c:290
#15 0xc053a15f in ithread_loop (arg=0xc6391760) at
/usr/src/sys/kern/kern_intr.c:682
#16 0xc0538cbd in fork_exit (callout=0xc053a040 <ithread_loop>, arg=0x2c,
frame=0x2c)
at /usr/src/sys/kern/kern_fork.c:821
#17 0xc06ec14c in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:208
(kgdb) list *0xc0596202
0xc0596202 is in m_copym (/usr/src/sys/kern/uipc_mbuf.c:400).
395 MBUF_CHECKSLEEP(wait);
396 if (off == 0 && m->m_flags & M_PKTHDR)
397 copyhdr = 1;
398 while (off > 0) {
399 KASSERT(m != NULL, ("m_copym, offset > size of
mbuf chain"));
400 if (off < m->m_len)
401 break;
402 off -= m->m_len;
403 m = m->m_next;
404 }
================kernel config file=============machine i386
cpu I686_CPU
ident router
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
options KDB
options DDB
options BREAK_TO_DEBUGGER
options SCHED_4BSD # 4BSD scheduler
options INET # InterNETworking
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
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 NFS_ROOT # NFS usable as /, requires NFSCLIENT
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
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
options ADAPTIVE_GIANT # Giant mutex is adaptive.
options IPDIVERT
options DUMMYNET
options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_FORWARD
options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
options HZ=1024
options DEVICE_POLLING
options GEOM_STRIPE
options GEOM_MIRROR
options NETGRAPH
options NETGRAPH_PPP
options NETGRAPH_BPF
options NETGRAPH_IFACE
options NETGRAPH_PPTPGRE
options NETGRAPH_NETFLOW
options NETGRAPH_TEE
options NETGRAPH_SOCKET
options NETGRAPH_KSOCKET
options NETGRAPH_VJC
options NETGRAPH_TCPMSS
device isa
device pci
device ata
device atadisk # ATA disk drives
device atapicd # ATAPI CDROM drives
options ATA_STATIC_ID # Static device numbering
device scbus # SCSI bus (required for SCSI)
device da # Direct Access (disks)
device pass # Passthrough device (direct SCSI access)
device ses # SCSI Environmental Services (and SAF-TE)
device ahd
device twe # 3ware ATA RAID
device atkbdc # AT keyboard controller
device atkbd # AT keyboard
device vga # VGA video card driver
device splash # Splash screen and screen saver support
device sc
device agp # support several AGP chipsets
device npx
device apm
device pmtimer
device sio # 8250, 16[45]50 based serial ports
device ppbus # Parallel port bus (required)
device miibus # MII bus support
device fxp # Intel EtherExpress PRO/100B (82557, 82558)
device re # RealTek 8139C+/8169/8169S/8110S
device rl # RealTek 8129/8139
device em
device iicbus
device smbus
device smb
device iicsmb
device nfsmb
# 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 ppp # Kernel PPP
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
device bpf # Berkeley packet filter
device pf
device pflog
device apic
================kernel config file=============
--
[ /Iexa ] mailto:adler@smtp.ru
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Alexey Sopov
2007-Feb-20 18:24 UTC
6.2-RELEASE + MPD 4.1 = Fatal trap 12: page fault while in kernel mode
Hi!
Yesterday I've updated my FreeBSD 6.0-RELEASE + mpd-4.0b4 up to
FreeBSD 6.2-RELEASE + mpd-4.1. And today I have a Fatal Trap.
Could you please help me to figure out what the problem consists in?
I folowed instructions described in handbook:
[intel][root]~# kgdb /usr/obj/usr/src/sys/router/kernel.debug
/var/crash/vmcore.77
kgdb: kvm_nlist(_stopped_cpus):
kgdb: kvm_nlist(_stoppcbs):
[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 are
welcome to change it and/or distribute copies of it under certain conditions.
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".
Unread portion of the kernel message buffer:
<6>external: promiscuous mode enabled
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xc
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc0596202
stack pointer = 0x28:0xe4fabb18
frame pointer = 0x28:0xe4fabb4c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 12 (swi4: clock sio)
Dumping 2047 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 2047MB (524032 pages) 2032 2016 2000 1984 1968 1952 1936 1920 1904
1888 1872 1856 1840 1824 1808 1792 1776 1760 1744 1728 1712 1696 1680 1664 1648
1632 1616 1600 1584 1568 1552 1536 1520 1504 1488 1472 1456 1440 1424 1408 1392
1376 1360 1344 1328 1312 1296 1280 1264 1248 1232 1216 1200 1184 1168 1152 1136
1120 1104 1088 1072 1056 1040 1024 1008 992 976 960 944 928 912 896 880 864 848
832 816 800 784 768 752 736 720 704 688 672 656 640 624 608 592 576 560 544 528
512 496 480 464 448 432 416 400 384 368 352 336 320 304 288 272 256 240 224 208
192 176 160 144 128 112 96 80 64 48 32 16
#0 doadump () at pcpu.h:165
165 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:165
#1 0xc04772e7 in db_fncall (dummy1=-1067884030, dummy2=0, dummy3=1,
dummy4=0xe4fab92c "")
at /usr/src/sys/ddb/db_command.c:492
#2 0xc0477780 in db_command_loop () at /usr/src/sys/ddb/db_command.c:350
#3 0xc0479600 in db_trap (type=12, code=0) at /usr/src/sys/ddb/db_main.c:222
#4 0xc0572252 in kdb_trap (type=0, code=0, tf=0xe4fabad8) at
/usr/src/sys/kern/subr_kdb.c:473
#5 0xc06ffae4 in trap_fatal (frame=0xe4fabad8, eva=12) at
/usr/src/sys/i386/i386/trap.c:828
#6 0xc06ffdeb in trap_pfault (frame=0xe4fabad8, usermode=0, eva=12)
at /usr/src/sys/i386/i386/trap.c:745
#7 0xc0700235 in trap (frame {tf_fs = 8, tf_es = 40, tf_ds = 40, tf_edi =
1352, tf_esi = 0, tf_ebp = -453330100, tf_isp = -453330172, tf_ebx = -940045504,
tf_edx = 20, tf_ecx = 1396, tf_eax = 44, tf_trapno = 12, tf_err = 0, tf_eip =
-1067884030, tf_cs = 32, tf_eflags = 66054, tf_esp = 256, tf_ss = -453330040})
at /usr/src/sys/i386/i386/trap.c:435
#8 0xc06ec0ea in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#9 0xc0596202 in m_copym (m=0x0, off0=1396, len=1376, wait=1)
at /usr/src/sys/kern/uipc_mbuf.c:397
#10 0xc061804a in ip_fragment (ip=0xcd365820, m_frag=0xe4fabc20, mtu=-940045504,
if_hwassist_flags=0, sw_csum=3073) at /usr/src/sys/netinet/ip_output.c:975
#11 0xc061a846 in ip_output (m=0xc6894300, opt=0xcd365820, ro=0xe4fabbec,
flags=1, imo=0x0,
inp=0x0) at /usr/src/sys/netinet/ip_output.c:804
#12 0xc0609742 in dummynet_send (m=0xc66b9e00) at
/usr/src/sys/netinet/ip_dummynet.c:771
#13 0xc0609a32 in dummynet (unused=0x0) at
/usr/src/sys/netinet/ip_dummynet.c:753
#14 0xc0563590 in softclock (dummy=0x0) at /usr/src/sys/kern/kern_timeout.c:290
#15 0xc053a15f in ithread_loop (arg=0xc6391760) at
/usr/src/sys/kern/kern_intr.c:682
#16 0xc0538cbd in fork_exit (callout=0xc053a040 <ithread_loop>, arg=0x2c,
frame=0x2c)
at /usr/src/sys/kern/kern_fork.c:821
#17 0xc06ec14c in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:208
(kgdb) list *0xc0596202
0xc0596202 is in m_copym (/usr/src/sys/kern/uipc_mbuf.c:400).
395 MBUF_CHECKSLEEP(wait);
396 if (off == 0 && m->m_flags & M_PKTHDR)
397 copyhdr = 1;
398 while (off > 0) {
399 KASSERT(m != NULL, ("m_copym, offset > size of
mbuf chain"));
400 if (off < m->m_len)
401 break;
402 off -= m->m_len;
403 m = m->m_next;
404 }
================kernel config file=============machine i386
cpu I686_CPU
ident router
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
options KDB
options DDB
options BREAK_TO_DEBUGGER
options SCHED_4BSD # 4BSD scheduler
options INET # InterNETworking
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
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 NFS_ROOT # NFS usable as /, requires NFSCLIENT
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
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
options ADAPTIVE_GIANT # Giant mutex is adaptive.
options IPDIVERT
options DUMMYNET
options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_FORWARD
options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
options HZ=1024
options DEVICE_POLLING
options GEOM_STRIPE
options GEOM_MIRROR
options NETGRAPH
options NETGRAPH_PPP
options NETGRAPH_BPF
options NETGRAPH_IFACE
options NETGRAPH_PPTPGRE
options NETGRAPH_NETFLOW
options NETGRAPH_TEE
options NETGRAPH_SOCKET
options NETGRAPH_KSOCKET
options NETGRAPH_VJC
options NETGRAPH_TCPMSS
device isa
device pci
device ata
device atadisk # ATA disk drives
device atapicd # ATAPI CDROM drives
options ATA_STATIC_ID # Static device numbering
device scbus # SCSI bus (required for SCSI)
device da # Direct Access (disks)
device pass # Passthrough device (direct SCSI access)
device ses # SCSI Environmental Services (and SAF-TE)
device ahd
device twe # 3ware ATA RAID
device atkbdc # AT keyboard controller
device atkbd # AT keyboard
device vga # VGA video card driver
device splash # Splash screen and screen saver support
device sc
device agp # support several AGP chipsets
device npx
device apm
device pmtimer
device sio # 8250, 16[45]50 based serial ports
device ppbus # Parallel port bus (required)
device miibus # MII bus support
device fxp # Intel EtherExpress PRO/100B (82557, 82558)
device re # RealTek 8139C+/8169/8169S/8110S
device rl # RealTek 8129/8139
device em
device iicbus
device smbus
device smb
device iicsmb
device nfsmb
# 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 ppp # Kernel PPP
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
device bpf # Berkeley packet filter
device pf
device pflog
device apic
================kernel config file=============
--
[ /Iexa ] mailto:suntechnic@gmail.com
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