Date: Thu, 14 May 2009 14:21:37 GMT From: Alexey Ivanov <need4spam@bk.ru> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/134540: kernel panic after sysctl -a (in strlcpy.c:56) Message-ID: <200905141421.n4EELboL090731@www.freebsd.org> Resent-Message-ID: <200905141430.n4EEU1IP021430@freefall.freebsd.org>
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>Number: 134540
>Category: kern
>Synopsis: kernel panic after sysctl -a (in strlcpy.c:56)
>Confidential: no
>Severity: non-critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu May 14 14:30:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator: Alexey Ivanov
>Release: FreeBSD-CURRENT
>Organization:
>Environment:
FreeBSD PH34R 8.0-CURRENT FreeBSD 8.0-CURRENT #42 r189056M: Thu May 14 09:26:54 MSD 2009 root@:/usr/obj/usr/src/sys/PH34R.8 i386
hmmm.. i think it lies about revision, because i've csup'ed about tonight
>Description:
when i run
#sysctl -a
system freezes
PH34R# kgdb kernel.debug /var/crash/vmcore.0
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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 = 0; apic id = 00
fault virtual address = 0x0
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc0935c80
stack pointer = 0x28:0xe9d76ad0
frame pointer = 0x28:0xe9d76ad8
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 = 7357 (sysctl)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 2h18m53s
Physical memory: 1391 MB
Dumping 203 MB: 188 172 156 140 124 108 92 76 60 44 28 12
Reading symbols from /boot/kernel/geom_eli.ko...Reading symbols from /boot/kernel/geom_eli.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/geom_eli.ko
Reading symbols from /boot/kernel/snd_hda.ko...Reading symbols from /boot/kernel/snd_hda.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/snd_hda.ko
Reading symbols from /boot/kernel/sound.ko...Reading symbols from /boot/kernel/sound.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/sound.ko
Reading symbols from /boot/kernel/atapicam.ko...Reading symbols from /boot/kernel/atapicam.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/atapicam.ko
Reading symbols from /boot/modules/bcmwl5_sys.ko...done.
Loaded symbols for /boot/modules/bcmwl5_sys.ko
Reading symbols from /boot/kernel/ndis.ko...Reading symbols from /boot/kernel/ndis.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ndis.ko
Reading symbols from /boot/kernel/if_ndis.ko...Reading symbols from /boot/kernel/if_ndis.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/if_ndis.ko
Reading symbols from /boot/kernel/aio.ko...Reading symbols from /boot/kernel/aio.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/aio.ko
Reading symbols from /boot/kernel/linprocfs.ko...Reading symbols from /boot/kernel/linprocfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linprocfs.ko
Reading symbols from /boot/kernel/linux.ko...Reading symbols from /boot/kernel/linux.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linux.ko
Reading symbols from /usr/local/modules/fuse.ko...done.
Loaded symbols for /usr/local/modules/fuse.ko
Reading symbols from /boot/kernel/ntfs_iconv.ko...Reading symbols from /boot/kernel/ntfs_iconv.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ntfs_iconv.ko
Reading symbols from /boot/kernel/libiconv.ko...Reading symbols from /boot/kernel/libiconv.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/libiconv.ko
Reading symbols from /boot/kernel/ntfs.ko...Reading symbols from /boot/kernel/ntfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ntfs.ko
Reading symbols from /boot/kernel/radeon.ko...Reading symbols from /boot/kernel/radeon.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/radeon.ko
Reading symbols from /boot/kernel/drm.ko...Reading symbols from /boot/kernel/drm.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/drm.ko
Reading symbols from /usr/local/modules/rtc.ko...done.
Loaded symbols for /usr/local/modules/rtc.ko
#0 doadump () at pcpu.h:246
246 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) list *0xc0935c80
0xc0935c80 is in strlcpy (/usr/src/sys/libkern/strlcpy.c:56).
51 size_t n = siz;
52
53 /* Copy as many bytes as will fit */
54 if (n != 0 && --n != 0) {
55 do {
56 if ((*d++ = *s++) == 0)
57 break;
58 } while (--n != 0);
59 }
60
(kgdb) backtrace
#0 doadump () at pcpu.h:246
#1 0xc089fcf7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:420
#2 0xc089ffcc in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:576
#3 0xc0c1294c in trap_fatal (frame=0xe9d76a90, eva=0)
at /usr/src/sys/i386/i386/trap.c:933
#4 0xc0c12bb0 in trap_pfault (frame=0xe9d76a90, usermode=0, eva=0)
at /usr/src/sys/i386/i386/trap.c:846
#5 0xc0c135a2 in trap (frame=0xe9d76a90) at /usr/src/sys/i386/i386/trap.c:528
#6 0xc0bf796b in calltrap () at /usr/src/sys/i386/i386/exception.s:165
#7 0xc0935c80 in strlcpy (dst=0xe9d76b24 "", src=0x0, siz=32)
at /usr/src/sys/libkern/strlcpy.c:54
#8 0xc088cd01 in sysctl_kern_malloc_stats (oidp=0xc0db2020, arg1=0x0, arg2=0,
req=0xe9d76ba4) at /usr/src/sys/kern/kern_malloc.c:804
#9 0xc08a9917 in sysctl_root (oidp=Variable "oidp" is not available.
) at /usr/src/sys/kern/kern_sysctl.c:1514
#10 0xc08a9ad4 in userland_sysctl (td=0xc6e07480, name=0xe9d76c10, namelen=2,
old=0x0, oldlenp=0xbfbfd9a0, inkernel=0, new=0x0, newlen=0,
retval=0xe9d76c70, flags=0) at /usr/src/sys/kern/kern_sysctl.c:1613
#11 0xc08a9c24 in __sysctl (td=0xc6e07480, uap=0xe9d76cf8)
at /usr/src/sys/kern/kern_sysctl.c:1544
#12 0xc0c12f05 in syscall (frame=0xe9d76d38)
at /usr/src/sys/i386/i386/trap.c:1073
#13 0xc0bf79d0 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:261
#14 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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