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Subjectnew Oopses in 2.0.35
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Date
Hello all,
in short: while having heavy network accesses (>50 ftp connections) my system
from time to time hangs (no inputs are noticed anymore) ore crashes (a few
times it reboots itself safely). Sometimes I found Oopses in my kernel log.
Some Oopses are "NULL pointer dereference" in try_ro_read_ahead (25 times),
generic_file_read (12 times), update_vm_cache (4 times) and ret_from_sys_call
(1 time). Others are "Unable to handle kernel paging request" in
get_write_access (1 time). Around are some "general protection: 0000". I'll
include a sample of all the listed Oopses but could also post the whole log
file (170K) if it would be helpful.
This Oopses happened some hours (1.5 - 15) after booting and the reboots
between 5min and 5h after the last error was recorded. Now I reduced the
network access and the system seems to be more stable.
My system configurations:
- cpu: cyrix 6x86 P166+
- chip set: intel 82430 FX (with "Intel 82371 PIIX (Triton I/II) DMA support"
enabled the transfer rate of the first channel grows from 6Mb/s to 11Mb/s but
the second reports an interrupt problem: "irq timeout: status=0x58 {
DriveReady SeekComplete DataRequest }" and disabled DMA)
- ram: (tested with memtest-86 but nothing found)
- network card: realtec ne2000 pci clone (with 3com 905b-tx it happens more
often but without off any messages)
- disk: two EIDE (IBM DHEA 6.4GB and IBM DCAA 4.3GB)
- cdrom: mitsumi FX120T
- zip-drive on ISA aha152x (never used within kernel release 2.0.35)
- soundcard: sound blaster 32 AWE (awe driver not included)

- Kernel: ($ cat /proc/version)
Linux version 2.0.35 (root@Nummer1.saw.rwth-aachen.de) (gcc version 2.7.2.3)
#23 Mon Sep 28 12:30:54 CEST 1998
- ip-firewalling and masquerading
- soundcard as module
- memstat module from xosview (for a correct display of shared memory)

The Oopses:
Sep 27 16:08:15 Nummer1 kernel: Unable to handle kernel NULL pointer
dereference at virtual address c0000f08
Sep 27 16:08:15 Nummer1 kernel: current->tss.cr3 = 009d7000, `r3 = 009d7000
Sep 27 16:08:15 Nummer1 kernel: *pde = 00102067
Sep 27 16:08:15 Nummer1 kernel: *pte = 00000000
Sep 27 16:08:15 Nummer1 kernel: Oops: 0000
Sep 27 16:08:15 Nummer1 kernel: CPU: 0
Sep 27 16:08:15 Nummer1 kernel: EIP: 0010:[try_to_read_ahead+115/296]
Sep 27 16:08:15 Nummer1 kernel: EFLAGS: 00010206
Sep 27 16:08:15 Nummer1 kernel: eax: 00000004 ebx: 00013000 ecx: 001ec5fc
edx: 00000f00
Sep 27 16:08:15 Nummer1 kernel: esi: 005c4000 edi: 015a5000 ebp: 005a3200
esp: 0175af34
Sep 27 16:08:15 Nummer1 kernel: ds: 0018 es: 0018 fs: 002b gs: 002b
ss: 0018
Sep 27 16:08:15 Nummer1 kernel: Process proftpd (pid: 2199, process nr: 89,
stackpage=0175a000)
Sep 27 16:08:15 Nummer1 kernel: Stack: 00013000 00000000 005a3200 0029427c
001ec5fc 0011d034 005a3200 005c4000
Sep 27 16:08:15 Nummer1 kernel: 00000000 00000000 013c6198 00002000
005a3200 00001000 005bf000 00013000
Sep 27 16:08:15 Nummer1 kernel: 00005000 00000000 00000002 00000001
00000000 005ad000 00001000 00000000
Sep 27 16:08:15 Nummer1 kernel: Call Trace: [generic_file_read+680/1524]
[sys_read+192/232] [system_call+85/124]
Sep 27 16:08:15 Nummer1 kernel: Code: 39 6a 08 75 f4 39 72 0c 75 ef ff 42 14
0f ba 6a 18 02 19 c0

Sep 27 16:08:18 Nummer1 kernel: Unable to handle kernel NULL pointer
dereference at virtual address c0000f08
Sep 27 16:08:18 Nummer1 kernel: current->tss.cr3 = 0053d000, `r3 = 0053d000
Sep 27 16:08:18 Nummer1 kernel: *pde = 00102067
Sep 27 16:08:18 Nummer1 kernel: *pte = 00000000
Sep 27 16:08:18 Nummer1 kernel: Oops: 0000
Sep 27 16:08:18 Nummer1 kernel: CPU: 0
Sep 27 16:08:18 Nummer1 kernel: EIP: 0010:[generic_file_read+303/1524]
Sep 27 16:08:18 Nummer1 kernel: EFLAGS: 00010206
Sep 27 16:08:18 Nummer1 kernel: eax: 000b5000 ebx: 001ec5fc ecx: 00000f00
edx: 00000004
Sep 27 16:08:18 Nummer1 kernel: esi: 02670000 edi: 000b5000 ebp: 00231e80
esp: 02d30f58
Sep 27 16:08:18 Nummer1 kernel: ds: 0018 es: 0018 fs: 002b gs: 002b
ss: 0018
Sep 27 16:08:18 Nummer1 kernel: Process proftpd (pid: 1987, process nr: 70,
stackpage=02d30000)
Sep 27 16:08:18 Nummer1 kernel: Stack: 00000000 02641d48 00002000 02670000
00001000 001ec5fc 00000000 00000000
Sep 27 16:08:18 Nummer1 kernel: 00000000 00000001 00000001 00000000
000b5000 00001000 00000000 00123574
Sep 27 16:08:18 Nummer1 kernel: 02670000 02641d48 080838dc 00001000
01a21414 00002000 080828dc bffff6c8
Sep 27 16:08:18 Nummer1 kernel: Call Trace: [sys_read+192/232]
[system_call+85/124]
Sep 27 16:08:18 Nummer1 kernel: Code: 39 71 08 75 f0 39 41 0c 75 eb ff 41 14
0f ba 69 18 02 19 d2

Sep 27 16:12:05 Nummer1 kernel: Unable to handle kernel NULL pointer
dereference at virtual address c0000f08
Sep 27 16:12:05 Nummer1 kernel: current->tss.cr3 = 01b26000, `r3 = 01b26000
Sep 27 16:12:05 Nummer1 kernel: *pde = 00102067
Sep 27 16:12:05 Nummer1 kernel: *pte = 00000000
Sep 27 16:12:05 Nummer1 kernel: Oops: 0000
Sep 27 16:12:05 Nummer1 kernel: CPU: 0
Sep 27 16:12:05 Nummer1 kernel: EIP: 0010:[update_vm_cache+99/248]
Sep 27 16:12:05 Nummer1 kernel: EFLAGS: 00010206
Sep 27 16:12:05 Nummer1 kernel: eax: 00000001 ebx: 00000f00 ecx: 00001000
edx: 00000006
Sep 27 16:12:05 Nummer1 kernel: esi: 00352f00 edi: 002cc000 ebp: 00000400
esp: 0055ae94
Sep 27 16:12:05 Nummer1 kernel: ds: 0018 es: 0018 fs: 002b gs: 002b
ss: 0018
Sep 27 16:12:05 Nummer1 kernel: Process proftpd (pid: 1988, process nr: 72,
stackpage=0055a000)
Sep 27 16:12:05 Nummer1 kernel: Stack: 00000000 00352f00 002cc000 00000400
00000000 00000100 00155c8f 00352f00
Sep 27 16:12:05 Nummer1 kernel: 002cc000 010db000 00000400 00000000
00352f34 013c6088 00352f00 00000000
Sep 27 16:12:05 Nummer1 kernel: 00000000 001eeac4 000003fc 00000000
00000b30 002cc000 00000000 02e59398
Sep 27 16:12:05 Nummer1 kernel: Call Trace: [ext2_bmap+39/588]
[inet_setsockopt+82/92] [_getitimer+181/192] [sys_write+331/388] [system_cal
l+85/124]
Sep 27 16:12:05 Nummer1 kernel: Code: 39 73 08 75 f0 8b 7c 24 20 39 7b 0c 75
e7 ff 43 14 0f ba 6b

Oct 1 20:26:37 Nummer1 kernel: Unable to handle kernel paging request at
virtual address e3d10002
Oct 1 20:26:37 Nummer1 kernel: current->tss.cr3 = 005c8000, `r3 = 005c8000
Oct 1 20:26:37 Nummer1 kernel: *pde = 00000000
Oct 1 20:26:37 Nummer1 kernel: Oops: 0000
Oct 1 20:26:37 Nummer1 kernel: CPU: 0
Oct 1 20:26:38 Nummer1 kernel: EIP: 0010:[ret_from_sys_call+89/136]
Oct 1 20:26:38 Nummer1 kernel: EFLAGS: 00010206
Oct 1 20:26:38 Nummer1 kernel: eax: 02bf7414 ebx: 001113a8 ecx: 00000000
edx: fffffbff
Oct 1 20:26:38 Nummer1 kernel: esi: 00000000 edi: 00000000 ebp: 003fe0f0
esp: 01ba0fbc
Oct 1 20:26:38 Nummer1 kernel: ds: 0018 es: 0018 fs: 002b gs: 002b
ss: 0018
Oct 1 20:26:38 Nummer1 kernel: Process gtkicq (pid: 5696, process nr: 22,
stackpage=01ba0000)
Oct 1 20:26:38 Nummer1 kernel: Stack: 401af3f8 080b4b40 080c4f34 00000000
00000000 003fe0f0 00000000 080a002b
Oct 1 20:26:38 Nummer1 kernel: 080c002b 0000002b 0000002b ffffffff
40134c5a 00100023 00010246 003fe0e0
Oct 1 20:26:38 Nummer1 kernel: 0009002b
Oct 1 20:26:38 Nummer1 kernel: Call Trace:
Oct 1 20:26:38 Nummer1 kernel: Code: 89 cb f7 d1 23 48 0c 75 26 66 83 7c 24
34 10 74 0b a1 08 98

Sep 30 18:21:10 Nummer1 kernel: Unable to handle kernel paging request at
virtual address eb674c90
Sep 30 18:21:10 Nummer1 kernel: current->tss.cr3 = 01265000, `r3 = 01265000
Sep 30 18:21:10 Nummer1 kernel: *pde = 00000000
Sep 30 18:21:10 Nummer1 kernel: Oops: 0000
Sep 30 18:21:10 Nummer1 kernel: CPU: 0
Sep 30 18:21:10 Nummer1 kernel: EIP: 0010:[get_write_access+64/112]
Sep 30 18:21:10 Nummer1 kernel: EFLAGS: 00010206
Sep 30 18:21:10 Nummer1 kernel: eax: 2b674c60 ebx: 02ebb374 ecx: 00590800
edx: 013ebc0c
Sep 30 18:21:10 Nummer1 kernel: esi: 00000000 edi: 0127f000 ebp: 00000004
esp: 00be1f74
Sep 30 18:21:10 Nummer1 kernel: ds: 0018 es: 0018 fs: 002b gs: 002b
ss: 0018
Sep 30 18:21:10 Nummer1 kernel: Process proftpd (pid: 14539, process nr: 37,
stackpage=00be1000)
Sep 30 18:21:10 Nummer1 kernel: Stack: 00122f09 00590800 00000000 00000004
00000000 00000401 00590800 00123073
Sep 30 18:21:10 Nummer1 kernel: 0127f000 00000401 00000000 00000004
01604810 08086934 0808692c bffff688
Sep 30 18:21:10 Nummer1 kernel: 0127f000 0010a66d 08065580 00000401
00000000 08086934 0808692c bffff688
Sep 30 18:21:10 Nummer1 kernel: Call Trace: [do_open+117/292]
[sys_open+63/120] [system_call+85/124]
Sep 30 18:21:10 Nummer1 kernel: Code: 39 48 30 75 0f f6 40 11 08 74 09 b8 e6
ff ff ff c3 8d 76 00

Thanks for your interest
Jan Menzel

PS: Please let my know if a cane do anything to fix this problems as quick as
possible (its impossible to use this system as server anymore). Thanks again.


------------------------------------------------
Jan Menzel | email: jan.menzel@gmx.de
| http://nummer1.saw.rwth-aachen.de
------------------------------------------------



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