Re: kernel panic on HEAD from Oct. 4th sources

[Peter Avalos <pavalos@xxxxxxxxxxxx>]

On Wed, Oct 17, 2007 at 04:32:04PM -0700, Matthew Dillon wrote:
> :Just had this one last night:
> :
> :...
> :#7  0xc018cb85 in fill_kinfo_proc (p=3D0xe8c21ba0, kp=3D0xec319628) at /usr=
> :/src/sys/kern/kern_kinfo.c:66
> 
>     I have committed a fix for what I believe the problem was.
> 

Just got this, and it appears similar to the previous one:

Fatal trap 12: page fault while in kernel mode
mp_lock = 00000001; cpuid = 1; lapic.id = 06000000
fault virtual address   = 0x4
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc019b833
stack pointer           = 0x10:0xe926c5f4
frame pointer           = 0x10:0xe926c610
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         = 1072 (devilator)
current thread          = pri 10 
 <- SMP: XXX
trap number             = 12
panic: page fault
mp_lock = 00000001; cpuid = 1
boot() called on cpu#1
Uptime: 30d16h20m42s

dumping to dev #da/0x20001, blockno 378927

(kgdb) bt
#0  dumpsys () at thread.h:83
#1  0xc01aa8b1 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:372
#2  0xc01aabce in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:797
#3  0xc0349650 in trap_fatal (frame=0xe926c5ac, eva=Variable "eva" is not available.
) at /usr/src/sys/platform/pc32/i386/trap.c:1096
#4  0xc03497a8 in trap_pfault (frame=0xe926c5ac, usermode=0, eva=4) at /usr/src/sys/platform/pc32/i386/trap.c:997
#5  0xc0349e60 in trap (frame=0xe926c5ac) at /usr/src/sys/platform/pc32/i386/trap.c:680
#6  0xc0335e76 in calltrap () at /usr/src/sys/platform/pc32/i386/exception.s:783
#7  0xc019b833 in fill_kinfo_proc (p=0xe8bd1ee0, kp=0xe926c628) at /usr/src/sys/kern/kern_kinfo.c:97
#8  0xc01a2d1d in sysctl_out_proc (p=0xe8bd1ee0, req=0xe926cbf4, flags=0) at /usr/src/sys/kern/kern_proc.c:653
#9  0xc01a36e2 in sysctl_kern_proc (oidp=0xc03b15a0, arg1=0x0, arg2=0, req=0xe926cbf4) at /usr/src/sys/kern/kern_proc.c:784
#10 0xc01ba6f5 in sysctl_root (oidp=Variable "oidp" is not available.
) at /usr/src/sys/kern/kern_sysctl.c:1194
#11 0xc01ba80d in userland_sysctl (name=0xe926cc7c, namelen=3, old=0x2b609000, oldlenp=0xbfbffb94, inkernel=0, new=0x0, newlen=0, retval=0xe926cc78)
    at /usr/src/sys/kern/kern_sysctl.c:1269
#12 0xc01baa79 in sys___sysctl (uap=0xe926ccf0) at /usr/src/sys/kern/kern_sysctl.c:1212
#13 0xc034a529 in syscall2 (frame=0xe926cd40) at /usr/src/sys/platform/pc32/i386/trap.c:1339
#14 0xc0335f15 in Xint0x80_syscall () at /usr/src/sys/platform/pc32/i386/exception.s:872
#15 0x280c6c2c in ?? ()
#16 0xbfbffafc in ?? ()
#17 0x0000002f in ?? ()
#18 0x00000000 in ?? ()
#19 0x00000000 in ?? ()
#20 0x00000000 in ?? ()
#21 0x00000000 in ?? ()
#22 0x35df6000 in ?? ()
#23 0xe8c7b100 in ?? ()
#24 0xff808000 in ?? ()
#25 0xe926c3c0 in ?? ()
#26 0xe926c380 in ?? ()
#27 0xd6ff0000 in ?? ()
#28 0xc01b2da2 in lwkt_switch () at /usr/src/sys/kern/lwkt_thread.c:752
Previous frame inner to this frame (corrupt stack?)

This happened with the system doing some serious paging.  Sources are
from Dec. 6th.  kernel and vmcore available on leaf:~pavalos/crash/9/.

--Peter

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