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SubjectPROBLEM: [1.] X session randomly crashes because of kernel problem.
[1.] X session randomly crashes because of kernel problem.

[2.] I installed the standart version of Mandrake8.0,
and I am working under kde2.1.1 with Xfree86 4.0.3.

Suddenly my X session exits. Looking at the syslog
I can see the following log:

Sep 16 19:13:30 129 kernel: Unable to handle kernel paging request at
virtual address 6d740010
Sep 16 19:13:30 129 kernel: printing eip:
Sep 16 19:13:30 129 kernel: c012701b
Sep 16 19:13:30 129 kernel: pgd entry c40306d4: 0000000000000000
Sep 16 19:13:30 129 kernel: pmd entry c40306d4: 0000000000000000
Sep 16 19:13:30 129 kernel: ... pmd not present!
Sep 16 19:13:30 129 kernel: Oops: 0000
Sep 16 19:13:30 129 kernel: CPU: 0
Sep 16 19:13:30 129 kernel: EIP: 0010:[kfree+55/192]
Sep 16 19:13:30 129 kernel: EIP: 0010:[<c012701b>]
Sep 16 19:13:30 129 kernel: EFLAGS: 00013087
Sep 16 19:13:30 129 kernel: eax: 064d0000 ebx: c53e7780 ecx:
c1000010 edx: ac740000
Sep 16 19:13:30 129 kernel: esi: c64d0000 edi: 00003286 ebp:
c05615f4 esp: c4051e98
Sep 16 19:13:30 129 kdm[1216]: Server for display :0 terminated
unexpectedly: 2816
Sep 16 19:13:30 129 kernel: ds: 0018 es: 0018 ss: 0018
Sep 16 19:13:31 129 kernel: Process X (pid: 1224, stackpage=c4051000)
Sep 16 19:13:31 129 kernel: Stack: c53e7780 c53e7780 c53e77dc c05615f4
c4051f80
64d00000 c01b03c3 c64d0000
Sep 16 19:13:31 129 kernel: c53e7780 00000040 c01b03d7 c53e7780
c53e7780
c01b054d c53e7780 000003f0
Sep 16 19:13:31 129 kernel: c53e7780 c01e8636 c53e7780 c1e37e94
000003f0
00000040 c4051f84 c53e7780
Sep 16 19:13:31 129 kernel: Call Trace: [skb_release_data+103/112]
[kfree_skbmem+11/88] [__kfree_skb+297/304] [unix_stream_recvmsg+714/924]
[sock_recvmsg+65/176] [unix_stream_recvmsg+0/924] [sock_read+147/156]
Sep 16 19:13:31 129 kernel: Call Trace: [<c01b03c3>] [<c01b03d7>]
[<c01b054d>] [<c01e8636>] [<c01ad881>] [<c01e836c>] [<c01ad98f>]
Sep 16 19:13:31 129 kernel: [sys_read+142/196]
[system_call+51/64]
Sep 16 19:13:31 129 kernel: [<c012dca6>] [<c0106f23>]
Sep 16 19:13:31 129 kernel:
Sep 16 19:13:31 129 kernel: Code: 8b 1c 11 8b 4c 11 04 2b 71 0c 89 f0 31
d2 f7 73 0c 89 c5 8b
Sep 16 19:13:41 129 kernel: <3>[drm:r128_do_wait_for_fifo] *ERROR*
r128_do_wait_for_fifo failed!
Sep 16 19:13:42 129 kernel: [drm:r128_do_wait_for_fifo] *ERROR*
r128_do_wait_for_fifo failed!
Sep 16 19:13:57 129 kernel: [drm:r128_do_wait_for_fifo] *ERROR*
r128_do_wait_for_fifo failed!
Sep 16 19:13:59 129 modprobe: modprobe: Can't locate module binfmt-0000
Sep 16 19:13:59 129 modprobe: modprobe: Can't locate module binfmt-0000
Sep 16 19:13:59 129 kernel: [drm:r128_do_wait_for_fifo] *ERROR*
r128_do_wait_for_fifo failed!

[3.] keywords : kernel, Ooups, pmd

[4.] Kernel version (from /proc/version):

Linux version 2.4.3-20mdk (chmou@no.mandrakesoft.com) (gcc version
egcs-2.91.66
19990314/Linux (egcs-1.1.2 release / Linux-Mandrake 8.0)) #1 Sun Apr
15 23:03:10 CEST 2001

[5.] Output of Oops.. message (if applicable) with symbolic information
resolved (see Documentation/oops-tracing.txt)


[6.] A small shell script or example program which triggers the
problem (if possible)

Nothing special to trigger the problem. This
happens randomly and quite often-- almost every day.

[7.] Environment
[7.1.] Software (add the output of the ver_linux script here)

Linux 129.150.111.9 2.4.3-20mdk #1 Sun Apr 15 23:03:10 CEST 2001 i686
unknown

Gnu C 2.96
Gnu make 3.79.1
binutils 2.10.1.0.2
util-linux 2.10s
mount 2.11b
modutils 2.4.3
e2fsprogs 1.19
reiserfsprogs 3.x.0i
PPP 2.4.0
Linux C Library 2.2.2
Dynamic linker (ldd) 2.2.2
Procps 2.0.7
Net-tools 1.59
Console-tools 0.2.3
Sh-utils 2.0
Modules Loaded soundcore r128 agpgart nfs lockd sunrpc autofs
e100 supermount reiserfs

[7.2.] Processor information (from /proc/cpuinfo):

processor : 0
vendor_id : CyrixInstead
cpu family : 6
model : 2
model name : 6x86MX 2.5x Core/Bus Clock
stepping : 6
cpu MHz : 187.502
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : yes
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu de tsc msr cx8 pge cmov mmx cyrix_arr
bogomips : 374.37

[7.3.] Module information (from /proc/modules):
r128 144688 1
agpgart 21280 3
nfs 73632 1 (autoclean)
lockd 48720 1 (autoclean) [nfs]
sunrpc 59232 1 (autoclean) [nfs lockd]
autofs 9232 0 (autoclean) (unused)
e100 41488 1 (autoclean)
supermount 32496 4 (autoclean)
reiserfs 165760 3

[7.4.] Loaded driver and hardware information (/proc/ioports,
/proc/iomem)

/proc/ioports
-------------
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial(auto)
0376-0376 : ide1
03c0-03df : vesafb
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
6000-60ff : VIA Technologies, Inc. VT82C586B ACPI
6400-640f : VIA Technologies, Inc. Bus Master IDE
6400-6407 : ide0
6408-640f : ide1
6c00-6c1f : Intel Corporation 82557 [Ethernet Pro 100]
6c00-6c1f : e100
e000-efff : PCI Bus #01
e000-e0ff : ATI Technologies Inc Rage 128 RF

/proc/iomem
-----------

00000000-0009ffff : System RAM
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-07ffffff : System RAM
00100000-001f412b : Kernel code
001f412c-0023bfab : Kernel data
a8000000-afffffff : PCI Bus #01
a8000000-abffffff : ATI Technologies Inc Rage 128 RF
a8000000-a8ffffff : vesafb
d8000000-dfffffff : PCI Bus #01
d8000000-d8003fff : ATI Technologies Inc Rage 128 RF
e0000000-e3ffffff : VIA Technologies, Inc. VT82C597 [Apollo VP3]
e4000000-e40fffff : Intel Corporation 82557 [Ethernet Pro 100]
e4100000-e4100fff : Intel Corporation 82557 [Ethernet Pro 100]
ffff0000-ffffffff : reserved

[7.5.] PCI information ('lspci -vvv' as root)

00:00.0 Host bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3] (rev
04)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR+
Latency: 16
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 1.0
Status: RQ=7 SBA+ 64bit- FW- Rate=x1
Command: RQ=0 SBA+ AGP+ 64bit- FW- Rate=x1

00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3 AGP]
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: d8000000-dfffffff
Prefetchable memory behind bridge: a8000000-afffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-

00:07.0 ISA bridge: VIA Technologies, Inc. VT82C586/A/B PCI-to-ISA
[Apollo VP] (rev 41)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping+ SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0

00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev
06) (prog-if 8a [Master SecP PriP])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64
Region 4: I/O ports at 6400 [size=16]

00:07.3 Bridge: VIA Technologies, Inc. VT82C586B ACPI (rev 10)
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-

00:0a.0 Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100]
(rev 01) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV-
VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR+
Latency: 64 (2000ns min, 14000ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at e4100000 (32-bit, prefetchable) [size=4K]
Region 1: I/O ports at 6c00 [size=32]
Region 2: Memory at e4000000 (32-bit, non-prefetchable)
[size=1M]
Expansion ROM at <unassigned> [disabled] [size=1M]

01:00.0 VGA compatible controller: ATI Technologies Inc Rage 128 RF
(prog-if 00
[VGA])
Subsystem: ATI Technologies Inc: Unknown device 0004
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping+ SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (2000ns min), cache line size 08
Interrupt: pin A routed to IRQ 0
Region 0: Memory at a8000000 (32-bit, prefetchable) [size=64M]
Region 1: I/O ports at e000 [size=256]
Region 2: Memory at d8000000 (32-bit, non-prefetchable)
[size=16K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [50] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=7 SBA+ AGP+ 64bit- FW- Rate=x1
Capabilities: [5c] Power Management version 1
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

[7.6.] SCSI information (from /proc/scsi/scsi)

N/A

[7.7.] Other information that might be relevant to the problem
(please look in /proc and include all information that you
think to be relevant):


[X.] Other notes, patches, fixes, workarounds:

N/A
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