Re: Panic during 'shutdown -p' on 5.3-RC1

At 6:56 PM -0500 10/22/04, Ryan Sommers wrote:
>Garance A Drosihn wrote:
>
>>I have only seen these panics during 'shutdown -p', and I think I
>>always see *some* panic message from a 'shutdown -p'.
>
>Can you get a backtrace? Or use addr2line on the ip?

Ahem.  It occurred to me that this machine is using a new kernel
config file (simply because it is a new machine), and that I forgot
to add a few key options to that config...  I still might not have
this quite right, but I should a lot closer now.  Here is the latest
panic:


shutdown: power-down by root:
System shutdown time has arrived
Waiting (max 60 seconds) for system process `vnlru' to stop...done
Waiting (max 60 seconds) for system process `bufdaemon' to stop...done
Waiting (max 60 seconds) for system process `syncer' to stop...
Syncing disks, vnodes remaining...1 1 1 0 1 1 0 0 0 0 done
No buffers busy after final sync
Uptime: 2m35s


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x8
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc0686bef
stack pointer           = 0x10:0xe2281cb8
frame pointer           = 0x10:0xe2281cd8
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         = 33 (irq23: vr0)
[thread 100029]
Stopped at      vr_rxeof+0x11f: pushl   0x8(%edi)
db> call doadump()

  - - - - - - [reboot] - - - - -
(69) #  kgdb /boot/kernel/kernel.debug /xx/crashdumps/vmcore.0
[GDB will not be able to debug user-mode threads:
      /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
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This GDB was configured as "i386-marcel-freebsd".
doadump () at pcpu.h:159
(kgdb) backtrace
#0  doadump () at pcpu.h:159
#1  0xc045b4e6 in db_fncall (dummy1=0, dummy2=0, dummy3=255,
     dummy4=0xe2281ae4 "\030\033(b\200%") at /usr/src/sys/ddb/db_command.c:531
#2  0xc045b2f4 in db_command (last_cmdp=0xc07b9284, cmd_table=0x0,
     aux_cmd_tablep=0xc0776630, aux_cmd_tablep_end=0xc077664c)
     at /usr/src/sys/ddb/db_command.c:349
#3  0xc045b3bc in db_command_loop () at /usr/src/sys/ddb/db_command.c:455
#4  0xc045cf35 in db_trap (type=12, code=0) at /usr/src/sys/ddb/db_main.c:221
#5  0xc05b5e67 in kdb_trap (type=12, code=0, tf=0x1)
     at /usr/src/sys/kern/subr_kdb.c:418
#6  0xc0706355 in trap_fatal (frame=0xe2281c78, eva=8)
     at /usr/src/sys/i386/i386/trap.c:804
#7  0xc07060b3 in trap_pfault (frame=0xe2281c78, usermode=0, eva=8)
     at /usr/src/sys/i386/i386/trap.c:727
#8  0xc0705cc9 in trap (frame=
       {tf_fs = 24, tf_es = 16, tf_ds = 16, tf_edi = 0,
        tf_esi = -1037437996, tf_ebp = -500687656, tf_isp = -500687708,
        tf_ebx = 0, tf_edx = -1037437996, tf_ecx = -1037438976,
        tf_eax = -4, tf_trapno = 12, tf_err = 0, tf_eip = -1066898449,
        tf_cs = 8, tf_eflags = 66199, tf_esp = -4, tf_ss = 2})
     at /usr/src/sys/i386/i386/trap.c:417
#9  0xc06f45fa in calltrap () at /usr/src/sys/i386/i386/exception.s:140
#10 0x00000018 in ?? ()
#11 0x00000010 in ?? ()
#12 0x00000010 in ?? ()
#13 0x00000000 in ?? ()
#14 0xc229f3d4 in ?? ()
#15 0xe2281cd8 in ?? ()
#16 0xe2281ca4 in ?? ()
#17 0x00000000 in ?? ()
#18 0xc229f3d4 in ?? ()
#19 0xc229f000 in ?? ()
#20 0xfffffffc in ?? ()
#21 0x0000000c in ?? ()
#22 0x00000000 in ?? ()
#23 0xc0686bef in vr_rxeof (sc=0xc229f000) at /usr/src/sys/pci/if_vr.c:1000
#24 0xc0687190 in vr_intr (arg=0xc229f000) at /usr/src/sys/pci/if_vr.c:1268
#25 0xc05899e5 in ithread_loop (arg=0xc2141d80)
     at /usr/src/sys/kern/kern_intr.c:547
#26 0xc0588a95 in fork_exit (callout=0xc058988c <ithread_loop>,
     arg=0xc2141d80, frame=0xe2281d48) at /usr/src/sys/kern/kern_fork.c:811
#27 0xc06f465c in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:209

-- 
Garance Alistair Drosehn            =   gad_at_gilead.netel.rpi.edu
Senior Systems Programmer           or  gad_at_freebsd.org
Rensselaer Polytechnic Institute    or  drosih_at_rpi.edu