[1.] One line summary of the problem:
Oops in schedule
[2.] Full description of the problem/report:
I am unsure of the actual cause. My machine is running Postfix and INN
and both were killed when the oops occurred. These are the only two tasks
that appear to have died.
[3.] Keywords (i.e., modules, networking, kernel):
kernel, oops, schedule, reschedule
[4.] Kernel version (from /proc/version):
Linux version 2.2.18 (root@gateway) (gcc version 2.7.2.3) #1 Mon Jan 8
01:42:03 EST 2001
[5.] Output of Oops
ksymoops 2.3.7 on i586 2.2.18. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.2.18/ (default)
-m /usr/src/linux/System.map (default)
Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.
Warning (compare_maps): ksyms_base symbol module_list_R__ver_module_list not found in
System.map. Ignoring ksyms_base entry
Unable to handle kernel NULL pointer dereference at virtual address 00000001
current->tss.cr3 = 023ef000, %cr3 = 023ef000
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c010f440>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010006
eax: 00000001 ebx: c6c4a000 ecx: 00000003 edx: 00000001
esi: c6c4a000 edi: 00000003 ebp: 00000003 esp: c6c4bfb0
ds: 0018 es: 0018 ss: 0018
Process dnetc (pid: 7716, process nr: 93, stackpage=c6c4b000)
Stack: ea26425b 00000000 c01f4c00 73bf4b97 c0107c3d 3e39d86e c681e5c8 238b04b1
f754b3f4 ea26425b 73bf4b97 a2f6e117 0000002b 0000002a ffffff00 08071cfe
00000023 00000203 bf9ffb00 0000002b
Call Trace: [<c0107c3d>]
Code: 00 00 c7 05 00 00 00 00 00 00 00 00 8d 65 ec 5b 5e 5f 89 ec
>>EIP; c010f440 <schedule+264/27c> <=====
Trace; c0107c3d <reschedule+5/c>
Code; c010f440 <schedule+264/27c>
00000000 <_EIP>:
Code; c010f440 <schedule+264/27c> <=====
0: 00 00 addb %al,(%eax) <=====
Code; c010f442 <schedule+266/27c>
2: c7 05 00 00 00 movl $0x0,0x0
Code; c010f447 <schedule+26b/27c>
7: 00 00 00 00 00
Code; c010f44c <schedule+270/27c>
c: 8d 65 ec leal 0xffffffec(%ebp),%esp
Code; c010f44f <schedule+273/27c>
f: 5b popl %ebx
Code; c010f450 <schedule+274/27c>
10: 5e popl %esi
Code; c010f451 <schedule+275/27c>
11: 5f popl %edi
Code; c010f452 <schedule+276/27c>
12: 89 ec movl %ebp,%esp
2 warnings issued. Results may not be reliable.
[6.] A small shell script or example program which triggers the
problem (if possible)
(not applicable)
[7.] Environment
[7.1.] Software (add the output of the ver_linux script here)
-- Versions installed: (if some fields are empty or looks
-- unusual then possibly you have very old versions)
Linux gateway 2.2.18 #1 Mon Jan 8 01:42:03 EST 2001 i586 unknown
Kernel modules 2.4.1
Gnu C 2.7.2.3
Binutils 2.9.1.0.15
Linux C Library 2.0.7
Dynamic linker ldd (GNU libc) 2.0.7
Linux C++ Library 2.8.0
Procps 1.2.9
Mount 2.10m
Net-tools 1.50
Kbd 0.96
Sh-utils 1.16
Modules Loaded nfs ppp slhc ip_masq_irc ip_masq_ftp nfsd lockd sunrpc 3c509
ne 8390 ncr53c8xx
[7.2.] Processor information (from /proc/cpuinfo):
processor : 0
vendor_id : AuthenticAMD
cpu family : 5
model : 6
model name : AMD-K6tm w/ multimedia extensions
stepping : 2
cpu MHz : 233.867
cache size : 64 KB
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8 sep mmx
bogomips : 466.94
[7.3.] Module information (from /proc/modules):
nfs 71488 1 (autoclean)
ppp 19728 0 (unused)
slhc 4384 0 [ppp]
ip_masq_irc 1968 0 (unused)
ip_masq_ftp 2528 0
nfsd 180432 8 (autoclean)
lockd 42288 1 (autoclean) [nfs nfsd]
sunrpc 55488 1 (autoclean) [nfs nfsd lockd]
3c509 5584 1 (autoclean)
ne 6208 1 (autoclean)
8390 6144 0 (autoclean) [ne]
ncr53c8xx 49732 4
[7.4.] SCSI information (from /proc/scsi/scsi)
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: SEAGATE Model: ST32430N Rev: 0510
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: QUANTUM Model: FIREBALL_TM2110S Rev: 300N
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 02 Lun: 00
Vendor: SEAGATE Model: ST5660N SUN0535 Rev: 0638
Type: Direct-Access ANSI SCSI revision: 02
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