[Fwd: Re: kern/118258 sysctl causing panics on 7.0-xxx]
Remko Lodder
remko at FreeBSD.org
Wed Nov 28 06:57:09 PST 2007
Hello,
So as per Jeff's information, can someone from the -current
list either contact jeff or try to resolve the problems
mentioned? :)
Cheers
remko
-------- Original Message --------
Subject: Re: kern/118258 sysctl causing panics on 7.0-xxx
Date: Wed, 28 Nov 2007 14:50:02 GMT
From: Jeff Palmer <jeff at rexdb.com>
Reply-To: Jeff Palmer <jeff at rexdb.com>
To: freebsd-bugs at FreeBSD.org
The following reply was made to PR kern/118258; it has been noted by GNATS.
From: Jeff Palmer <jeff at rexdb.com>
To: bug-followup at freebsd.org
Cc:
Subject: Re: kern/118258 sysctl causing panics on 7.0-xxx
Date: Wed, 28 Nov 2007 09:28:47 -0500
Caught another vmcore,=20
this time simply from 'sysctl -a'
This one showed debugging data from the if_wpi driver on the terminal
immediately before the panic.
Since the wpi driver is in -CURRENT (and not in 7.3-BETA3) I'm uncertain
if this should actually be filed as a PR, or just brought up on the
current@ list.
I'm not certain it's directly related to the wpi driver, so until
informed otherwise, I'll just keep submitting followups to this PR as I
can.
Thanks,
Jeff Palmer
Laptop# kgdb /usr/obj/usr/src/sys/GENERIC/kernel.debug /var/crash/vmcore.=
1
[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 detail=
s.
This GDB was configured as "i386-marcel-freebsd".
Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
cpuid =3D 1; apic id =3D 01
fault virtual address =3D 0x18264
fault code =3D supervisor read, page not present
instruction pointer =3D 0x20:0xc06e6a11
stack pointer =3D 0x28:0xe76e9aa4
frame pointer =3D 0x28:0xe76e9aa4
code segment =3D base 0x0, limit 0xfffff, type 0x1b
=3D DPL 0, pres 1, def32 1, gran 1
processor eflags =3D interrupt enabled, resume, IOPL =3D 0
current process =3D 53221 (sysctl)
trap number =3D 12
panic: page fault
cpuid =3D 1
Uptime: 1d5h15m17s
Physical memory: 1001 MB
Dumping 210 MB: 195 179 163 147 131 115 99 83 67 51 35 19 3
#0 doadump () at pcpu.h:195
195 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0xc0750c17 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c=
:409
#2 0xc0750ed9 in panic (fmt=3DVariable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3 0xc0a1542c in trap_fatal (frame=3D0xe76e9a64, eva=3D98916)
at /usr/src/sys/i386/i386/trap.c:872
#4 0xc0a156b0 in trap_pfault (frame=3D0xe76e9a64, usermode=3D0, eva=3D98=
916)
at /usr/src/sys/i386/i386/trap.c:785
#5 0xc0a16025 in trap (frame=3D0xe76e9a64) at
/usr/src/sys/i386/i386/trap.c:463
#6 0xc09fc04b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7 0xc06e6a11 in dev2udev (x=3D0xc50f4b00) at
/usr/src/sys/fs/devfs/devfs_vnops.c:1322
#8 0xc0790e22 in sysctl_kern_ttys (oidp=3D0xc0b4b7e0, arg1=3D0x0, arg2=3D=
0,
req=3D0xe76e9ba4)
at /usr/src/sys/kern/tty.c:3078
#9 0xc075a457 in sysctl_root (oidp=3DVariable "oidp" is not available.
) at /usr/src/sys/kern/kern_sysctl.c:1306
#10 0xc075a5a4 in userland_sysctl (td=3D0xc5049210, name=3D0xe76e9c14,
namelen=3D2, old=3D0x0,
oldlenp=3D0xbfbfe334, inkernel=3D0, new=3D0x0, newlen=3D0,
retval=3D0xe76e9c10, flags=3D0)
at /usr/src/sys/kern/kern_sysctl.c:1401
#11 0xc075b33e in __sysctl (td=3D0xc5049210, uap=3D0xe76e9cfc)
at /usr/src/sys/kern/kern_sysctl.c:1336
#12 0xc0a15a05 in syscall (frame=3D0xe76e9d38) at
/usr/src/sys/i386/i386/trap.c:1008
#13 0xc09fc0b0 in Xint0x80_syscall () at
/usr/src/sys/i386/i386/exception.s:196
#14 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) list
196 call syscall
197 add $4, %esp
198 MEXITCOUNT
199 jmp doreti
200
201 ENTRY(fork_trampoline)
202 pushl %esp /* trapframe pointer */
203 pushl %ebx /* arg1 */
204 pushl %esi /* function */
205 call fork_exit
(kgdb)
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