nfs panics the system

Hi there,

nfs mount from another system and copying data to the nfs mounted
partition made my system panic (FreeBSD 5.2BETA) after a while.

Below is some data from the dump. If you need more tell me what to do.

Manfred


panic: vm_fault: fault on nofault entry, addr: e223a000

syncing disks, buffers remaining... kernel trap 12 with interrupts disabled


Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x24
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc0580ece
stack pointer           = 0x10:0xdd65ba38
frame pointer           = 0x10:0xdd65ba58
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = resume, IOPL = 0
current process         = 27 (swi8: tty:sio clock)
trap number             = 12
panic: page fault






Here's a backtrace

(kgdb) bt
#0  doadump () at /usr/src/sys/kern/kern_shutdown.c:240
#1  0xc0558419 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:372
#2  0xc05587f8 in panic () at /usr/src/sys/kern/kern_shutdown.c:550
#3  0xc069e316 in vm_fault (map=0xc1031000, vaddr=3793985536, 
  fault_type=1 '\001', fault_flags=0) at /usr/src/sys/vm/vm_fault.c:280
#4  0xc06ed253 in trap_pfault (frame=0xdd679c1c, usermode=0, eva=3793985536) 
at /usr/src/sys/i386/i386/trap.c:723
#5  0xc06ecdfd in trap (frame=
      {tf_fs = 24, tf_es = 16, tf_ds = 16, tf_edi = -1020285016, 
tf_esi = -500981762, tf_ebp = -580412280, tf_isp = -580412344, tf_ebx = -1029769728, 
tf_edx = 1, tf_ecx = 22, tf_eax= -519303254, tf_trapno = 12, tf_err = 0,
tf_eip = -1066487882, tf_cs = 8, tf_eflags = 66070, tf_esp = 11495, tf_ss
= 2048}) at /usr/src/sys/i386/i386/trap.c:420 #6  0xc06dd5c8 in calltrap
() at {standard input}:94 #7  0xc066489a in rl_rxeof (sc=0xc5294000) at
/usr/src/sys/pci/if_rl.c:1314 #8  0xc0664d99 in rl_intr (arg=0xc5294000)
at /usr/src/sys/pci/if_rl.c:1511 #9  0xc0542448 in ithread_loop
(arg=0xc29bdb80) at /usr/src/sys/kern/kern_intr.c:544 #10 0xc05410c0 in
fork_exit (callout=0xc0542270 <ithread_loop>, arg=0x0, frame=0x0) at
/usr/src/sys/kern/kern_fork.c:793

Here's the instruction pointer:


(kgdb) list *0xc0580ece
0xc0580ece is in propagate_priority (/usr/src/sys/kern/subr_turnstile.c:232).
227                     /*
228                      * Pick up the lock that td is blocked on.
229                      */
230                     ts = td->td_blocked;
231                     MPASS(ts != NULL);
232                     tc = TC_LOOKUP(ts->ts_lockobj);
233                     mtx_lock_spin(&tc->tc_lock);
234     
235                     /*
236                      * This thread may not be blocked on this turnstile anymore