On Wed, 31 May 2006, dawnshade wrote:
> Hi all.
>
> I have periodically crashes 6.1-RELEASE running on Intel MB S875WP1
>
> in messages i see: May 31 06:14:50 mail savecore: reboot after panic: page
> fault
>
> i installed debug kernel and got a core, but can't understand what
happens.
> results of backtrace :
There's also an existing PR for this, 97095. This problem is believed fixed
in 7-CURRENT, but it requires fairly significant changes in the socket/netinet
code, which are scheduled for merging in about a month and a half. I'll
investigate whether there are any easy work-arounds that can be applied in the
mean time. It is made a little tricky because the ip_ctloutput() path is
shared by varius netinet consumers, and the only way to prevent a change in
the so->so_pcb pointer in 6.x is to hold the pcbinfo lock, which requires you
(ip_ctloutput()) to have more information about its calling context than it
currently does. So this will definitely be fixed in another month or so, but
I'll see if I can find something in the short term that will do the trick
with
a bit less disruption.
Robert N M Watson
>
>
> mail# kgdb /boot/kernel/kernel vmcore.4
> [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".
> (no debugging symbols found)...Attempt to extract a component of a value
that
> is not a structure pointer.
> (kgdb) bt
> #0 0xc04bd73c in doadump ()
> #1 0xc04bdd8d in boot ()
> #2 0xc04be13e in panic ()
> #3 0xc060c155 in trap_fatal ()
> #4 0xc060be49 in trap_pfault ()
> #5 0xc060ba2f in trap ()
> #6 0xc05f6f6a in calltrap ()
> #7 0xc056a0d1 in ip_ctloutput ()
> #8 0xc0579d7b in tcp_ctloutput ()
> #9 0xc05033bc in sogetopt ()
> #10 0xc05092df in kern_getsockopt ()
> #11 0xc05091ce in getsockopt ()
> #12 0xc060c53c in syscall ()
> #13 0xc05f6fbf in Xint0x80_syscall ()
> #14 0x00000033 in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> (kgdb)
>
>
> dmesg:
>
> Copyright (c) 1992-2006 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
> The Regents of the University of California. All rights reserved.
> FreeBSD 6.1-RELEASE #0: Sat May 27 22:54:46 MSD 2006
> root@mail.*.ru:/usr/src/sys/i386/compile/mail_kern_6
> MPTable: < Canterwood-P>
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2793.01-MHz 686-class CPU)
> Origin = "GenuineIntel" Id = 0xf25 Stepping = 5
>
>
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> Features2=0x4400<CNTX-ID,<b14>>
> Logical CPUs per core: 2
> real memory = 2146631680 (2047 MB)
> avail memory = 2097582080 (2000 MB)
> ioapic0: Assuming intbase of 0
> ioapic0 <Version 2.0> irqs 0-23 on motherboard
> cpu0 on motherboard
> pcib0: <MPTable Host-PCI bridge> pcibus 0 on motherboard
> pci0: <PCI bus> on pcib0
> pcib1: <PCI-PCI bridge> at device 1.0 on pci0
> pci1: <PCI bus> on pcib1
> pcib2: <MPTable PCI-PCI bridge> at device 3.0 on pci0
> pci2: <PCI bus> on pcib2
> em0: <Intel(R) PRO/1000 Network Connection Version - 3.2.18> port
> 0xbc00-0xbc1f mem 0xfc9e0000-0xfc9fffff irq 18 at device 1.0 on pci2
> em0: Ethernet address: 00:0c:f1:e4:26:5b
> pci0: <serial bus, USB> at device 29.0 (no driver attached)
> pci0: <serial bus, USB> at device 29.1 (no driver attached)
> pci0: <serial bus, USB> at device 29.2 (no driver attached)
> pci0: <serial bus, USB> at device 29.3 (no driver attached)
> pcib3: <MPTable PCI-PCI bridge> at device 30.0 on pci0
> pci3: <PCI bus> on pcib3
> pci3: <display, VGA> at device 6.0 (no driver attached)
> pci3: <network, ethernet> at device 8.0 (no driver attached)
> isab0: <PCI-ISA bridge> at device 31.0 on pci0
> isa0: <ISA bus> on isab0
> atapci0: <Intel ICH5 UDMA100 controller> port
> 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at device 31.1 on pci0
> ata0: <ATA channel 0> on atapci0
> ata1: <ATA channel 1> on atapci0
> pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
> pmtimer0 on isa0
> orm0: <ISA Option ROM> at iomem 0xc0000-0xc7fff on isa0
> atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
> atkbd0: <AT Keyboard> irq 1 on atkbdc0
> kbd0 at atkbd0
> atkbd0: [GIANT-LOCKED]
> sc0: <System console> at flags 0x100 on isa0
> sc0: VGA <16 virtual consoles, flags=0x300>
> sio0: configured irq 4 not in bitmap of probed irqs 0
> sio0: port may not be enabled
> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
> sio0: type 8250 or not responding
> sio1: configured irq 3 not in bitmap of probed irqs 0
> sio1: port may not be enabled
> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on
isa0
> unknown: <PNP0303> can't assign resources (port)
> unknown: <INT0800> can't assign resources (memory)
> Timecounter "TSC" frequency 2793010524 Hz quality 800
> Timecounters tick every 1.000 msec
> ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding disabled,
> default to accept, logging unlimited
> ad0: 190782MB <Seagate ST3200822A 3.01> at ata0-master UDMA100
> acd0: CDROM <ASUS CD-S520/A4/1.2> at ata1-master UDMA33
>
> This dmesg w/o ACPI, i tried running with and got the same results.
> HTT disabled by default.
> Can anybody interpreter resuls of backtrace?
>
> thx.
>
>
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