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.
> 

Got another from sources with your fix in it:

Fatal trap 12: page fault while in kernel mode
mp_lock = 00000000; cpuid = 0; lapic.id = 00000000
fault virtual address   = 0xa00
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc018cc02
stack pointer           = 0x10:0xe91065f4
frame pointer           = 0x10:0xe9106610
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         = 1119 (devilator)
current thread          = pri 10
 <- SMP: XXX
trap number             = 12
panic: page fault
mp_lock = 00000000; cpuid = 0
boot() called on cpu#0
Uptime: 1d10h38m2s

dumping to dev #da/0x20001, blockno 378927

(kgdb) bt
#0  dumpsys () at thread.h:83
#1  0xc019ba82 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:371
#2  0xc019bd9f in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:796
#3  0xc02e4a00 in trap_fatal (frame=0xe91065ac, eva=Variable "eva" is not available.
) at /usr/src/sys/platform/pc32/i386/trap.c:1096
#4  0xc02e4b58 in trap_pfault (frame=0xe91065ac, usermode=0, eva=2560) at /usr/src/sys/platform/pc32/i386/trap.c:997
#5  0xc02e5210 in trap (frame=0xe91065ac) at /usr/src/sys/platform/pc32/i386/trap.c:680
#6  0xc02d1246 in calltrap () at /usr/src/sys/platform/pc32/i386/exception.s:783
#7  0xc018cc02 in fill_kinfo_proc (p=0xe9297860, kp=0xe9106628) at /usr/src/sys/kern/kern_kinfo.c:87
#8  0xc0193efd in sysctl_out_proc (p=0xe9297860, req=0xe9106bf4, flags=0) at /usr/src/sys/kern/kern_proc.c:653
#9  0xc01948b6 in sysctl_kern_proc (oidp=0xc033d9e0, arg1=0x0, arg2=0, req=0xe9106bf4) at /usr/src/sys/kern/kern_proc.c:782
#10 0xc01ab7b5 in sysctl_root (oidp=Variable "oidp" is not available.
) at /usr/src/sys/kern/kern_sysctl.c:1194
#11 0xc01ab8cd in userland_sysctl (name=0xe9106c7c, namelen=3, old=0x2841e000, oldlenp=0xbfbff954, inkernel=0, new=0x0, newlen=0, retval=0xe9106c78)
    at /usr/src/sys/kern/kern_sysctl.c:1269
#12 0xc01abb39 in sys___sysctl (uap=0xe9106cf0) at /usr/src/sys/kern/kern_sysctl.c:1212
#13 0xc02e58d9 in syscall2 (frame=0xe9106d40) at /usr/src/sys/platform/pc32/i386/trap.c:1339
#14 0xc02d12e5 in Xint0x80_syscall () at /usr/src/sys/platform/pc32/i386/exception.s:872
#15 0x280c6c9c in ?? ()
#16 0xbfbff8bc in ?? ()
#17 0x0000002f in ?? ()
#18 0x00000000 in ?? ()
#19 0x00000000 in ?? ()
#20 0x00000000 in ?? ()
#21 0x00000000 in ?? ()
#22 0x773cd000 in ?? ()
#23 0x00000002 in ?? ()
#24 0xc035bae4 in intr_info_ary ()
#25 0xe9106420 in ?? ()
#26 0xe9106404 in ?? ()
#27 0xe8d6d500 in ?? ()
#28 0xc01a3571 in lwkt_preempt (ntd=0xbfbff954, critpri=Cannot access memory at address 0xbfbff8f4
) at /usr/src/sys/kern/lwkt_thread.c:893
Previous frame inner to this frame (corrupt stack?)

I'm having problems with my laptop right now (it has my ssh key) so I'm not
able to upload the core right away.

--Peter

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