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SubjectRe: scheduler bigpatch for 2.1.128
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On Fri, 13 Nov 1998, Rik van Riel wrote:

> within hours of the 2.1.128 release (within 30 minutes
> of the patch reaching my mailbox) I have put out the
> 2.1.128 version of my scheduler bigpatch.

I am ***STILL*** getting an Oops generated with your big-scheduler-patch
for 2.1.128. I have had this problem in all the versions you have
published. It occurs while my system is booting and gets to the point when
"mount -avt nonfs" runs in my rc.d/rc.S script. It specifically happens
while attempting to mount /proc filesystem.

The difference today is that instead of hanging indefinitely and forcing
me to hard-reset, for some reason it continued anyways and permitted me to
get a snapshot of the Oops and run it through ksymoops.

While manually trying to mount /proc in a root console, I currently have
mount stuck and /proc refuses to mount. :-/

The output from ksymoops follows:

Unable to handle kernel NULL pointer dereference at virtual address 00000004
current->tss.cr3 = 07ea7000, %cr3 = 07ea7000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c8826255>]
EFLAGS: 00010286
eax: 00000000 ebx: c7d06000 ecx: c7e2dec4 edx: c7e2c000
esi: 00000301 edi: c7d06000 ebp: c7cd6400 esp: c7e2dd88
ds: 0018 es: 0018 ss: 0018
Process mount (pid: 14, process nr: 7, stackpage=c7e2d000)
Stack: c7d06000 c7cd6400 c7e2ddd0 c008e000 00000001 c881f300 00000bb8 00000003
c0093280 c8826bb6 c7d06000 c7e2de0c c7e2de08 c7e2de04 c7e2dec4 c7e2de78
c7e2de10 c7cd6400 00000301 c7d06000 00000301 00000000 c7d1580a c7d3fc90
Call Trace: [<c881f300>] [<c8826bb6>] [<c011a3cf>] [<c0124fd3>] [<c01100cf>] [<c0115bad>] [<c0116436>]
[<c012b208>] [<c882b663>] [<c882e35c>] [<c0127b52>] [<c0127fb3>] [<c882e132>] [<c882e132>] [<c01284e4>]
[<c882e132>] [<c010892c>]
Code: 8b 40 04 66 89 41 04 80 61 0e f0 66 c7 41 06 00 00 80 61 0e

Ksymoops:

Using `/usr/src/linux/System.map' to map addresses to symbols.

>>EIP: c8826255 cannot be resolved
Trace: c881f300
Trace: c8826bb6
Trace: c011a3cf <do_anonymous_page+9f/b0>
Trace: c0124fd3 <get_hash_table+1f/60>
Trace: c01100cf <schedule+27b/2a4>
Trace: c0115bad <release+dd/104>
Trace: c0116436 <sys_wait4+26e/2f0>
Trace: c012b208 <do_follow_link+78/84>
Trace: c882b663
Trace: c882e35c
Trace: c0127b52 <read_super+86/ac>
Trace: c0127fb3 <do_mount+9b/108>
Trace: c882e132
Trace: c882e132
Trace: c01284e4 <sys_mount+2b4/314>
Trace: c882e132
Trace: c010892c <system_call+34/38>
Code:
Code: 8b 40 04 movl 0x4(%eax),%eax
Code: 66 89 41 04 movw %ax,0x4(%ecx)
Code: 80 61 0e f0 andb $0xf0,0xe(%ecx)
Code: 66 c7 41 06 00 movw $0x0,0x6(%ecx)
Code: 80 61 0e 00 andb $0x0,0xe(%ecx)
Code: 90 nop
Code: 90 nop
Code: 90 nop

Other information:

root:~# mount -V
mount: mount-2.7l

root:~# uname -a
Linux gomer.mlink.net 2.1.128 #1 Fri Nov 13 11:39:43 EST 1998 i686 unknown

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| | gomer@mlink.net |
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