[BProc] Oops..... Nic did it again(tm)

[Nicholas H. <he...@se...>]

Ok -- sorry for the bad Brittney rip off, but here is an oops I have
started seeing on our cluster. This time the ksymoops output seems a bit
more sane than usual:
FYI This is on 2.4.18 and bproc 3.2.0. Eek -- ok not exactly up to date, 
but if you want me to upgrade, I will have to wait a couple weeks.

Unable to handle kernel NULL pointer dereference at virtual address 00000018
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<f89f651f>]    Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010202
eax: 00000000   ebx: f35b6cc0   ecx: 00000002   edx: f0700000
esi: f0700000   edi: 00000006   ebp: f0704000   esp: f1413f10
ds: 0018   es: 0018   ss: 0018
Process ps (pid: 10054, stackpage=f1413000)
Stack: c015c85e f0700000 5302f704 00000000 ffffffff 00000000 c011d054 080f7628
       4010f6ad 00344000 00000000 00000000 00000000 00000000 f0700000 f12362a0
       000001ff f0704000 c015a593 f0700000 f0704000 00000000 f15c9000 00000000
Call Trace: [<c015c85e>] [<c011d054>] [<c015a593>] [<c013b1f6>] [<c013ab75>]
   [<c010734b>]
Code: 8b 40 18 c3 90 8b 42 7c c3 f6 05 e0 d0 26 c0 01 8b 54 24 04

>>EIP; f89f651f <[bproc]do_exec+23/6c>   <=====
Trace; c015c85e <proc_pid_stat+16e/2e0>
Trace; c011d054 <do_exit+254/270>
Trace; c015a593 <proc_info_read+63/120>
Trace; c013b1f6 <sys_read+96/120>
Trace; c013ab75 <sys_open+95/e0>
Trace; c010734b <system_call+33/38>
Code;  f89f651f <[bproc]do_exec+23/6c>
00000000 <_EIP>:
Code;  f89f651f <[bproc]do_exec+23/6c>   <=====
   0:   8b 40 18                  mov    0x18(%eax),%eax   <=====
Code;  f89f6522 <[bproc]do_exec+26/6c>
   3:   c3                        ret
Code;  f89f6523 <[bproc]do_exec+27/6c>
   4:   90                        nop
Code;  f89f6524 <[bproc]do_exec+28/6c>
   5:   8b 42 7c                  mov    0x7c(%edx),%eax
Code;  f89f6527 <[bproc]do_exec+2b/6c>
   8:   c3                        ret
Code;  f89f6528 <[bproc]do_exec+2c/6c>
   9:   f6 05 e0 d0 26 c0 01      testb  $0x1,0xc026d0e0
Code;  f89f652f <[bproc]do_exec+33/6c>
  10:   8b 54 24 04               mov    0x4(%esp,1),%edx
-- 
Nicholas Henke
Penguin Herder & Linux Cluster System Programmer
Liniac Project - Univ. of Pennsylvania