Re: 2.1.49 All processes freeze and other Oopses

Jeff DeFouw (mrj@gr.cns.net)
Wed, 13 Aug 1997 23:27:51 -0400 (EDT)

Ok just happened again. This time my system was only up for less than
10 minutes (rebooted after an Oops). A few shells were open with irc and
lynx, but the system was idle. Again, VT switching worked and the
keyboard lights worked, but nothing else. PPP was still connected so it
isn't that.

That Oops before the reboot was this:

Unable to handle kernel NULL pointer dereference at virtual address 0000004f
current->tss.cr3 = 00f8a000, Dr3 = 00f8a000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c012b216>]
EFLAGS: 00010286
eax: c0e07320 ebx: c0e07320 ecx: 00000000 edx: ffffffff
esi: c0e07320 edi: c0940860 ebp: c06fb011 esp: c0f89f30
ds: 0018 es: 0018 ss: 0018
Process crond (pid: 43, process nr: 5, stackpage=c0f89000)
Stack: c022c500 00000003 000006c2 00000180 00a92067 c06fb005 0000000c 949e29ef
c012b366 c06fb000 00000000 00000001 c022c500 00000003 00000000 c06fb000
c06fb000 c06fb000 c01230ed c06fb000 000006c2 00000180 c06fb000 00000003
Call Trace: [<c012b366>] [<c01230ed>] [<c01232e5>] [<c01093ca>]

>>EIP: c012b216 <lookup_dentry+13a/1d4>
Trace: c012b366 <open_namei+36/2ac>
Trace: c01230ed <do_open+49/124>
Trace: c01232e5 <sys_open+95/c8>
Trace: c01093ca <system_call+3a/40>

Code: c012b216 <lookup_dentry+13a/1d4>
Code: c012b216 <lookup_dentry+13a/1d4> 8b 42 50 movl
0x50(%edx),%eax
Code: c012b219 <lookup_dentry+13d/1d4> 85 c0 testl %eax,%eax
Code: c012b21b <lookup_dentry+13f/1d4> 74 59 je c012b276
<lookup_dentry+19a/1d4>
Code: c012b21d <lookup_dentry+141/1d4> 8b 48 2c movl
0x2c(%eax),%ecx
Code: c012b226 <lookup_dentry+14a/1d4> 85 c9 testl %ecx,%ecx
Code: c012b228 <lookup_dentry+14c/1d4> 74 52 je c012b276
<lookup_dentry+19a/1d4>
Code: c012b22a <lookup_dentry+14e/1d4> 89 e0 movl %esp,%eax
Code: c012b22c <lookup_dentry+150/1d4> 89 c3 movl %eax,%ebx
Code: c012b22e <lookup_dentry+152/1d4> 81 e3 00 90 90 andl
$0x90909000,%ebx
Code: c012b239 <lookup_dentry+15d/1d4> 90

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mrj@gr.cns.net Jeff DeFouw
MrJ WorldWide Free-Net IRC Network (WWFIN) Technical Director
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