CFSD disturbs kernel ?

Stephan Holtwisch (sholtwi@uni-muenster.de)
Sun, 08 Mar 1998 22:29:01 +0100


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I use a Linux 2.0.33 on an Intel Pentium 100. (SuSE 5.1 Distr.)
CFS seems to disturb the kernel in some way.
i send you this info due to kernel improvement.

Generell info:

High Usage of CFS - writing and reading at the same time (Load 5.0) + X
server + some other
Processes (6).
CFS version 1.3.3-2 (without blowfish)

Attached dokument contains Error messages + system info:

If you need further info feel free to ask me. I have no idea what moght
have caused this,
thats way i am not sure wether i gave you the correct details. The
system however - did not
quit working.

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Mar 7 09:13:55 lamvien kernel: general protection: 0000
Mar 7 09:13:55 lamvien kernel: CPU: 0
Mar 7 09:13:55 lamvien kernel: EIP: 0010:[get_hash_table+52/172]
Mar 7 09:13:55 lamvien kernel: EFLAGS: 00010286
Mar 7 09:13:55 lamvien kernel: eax: b0a9f618 ebx: 000b0341 ecx: 01f3a9c8 edx: 00000e6f
Mar 7 09:13:55 lamvien kernel: esi: 00000341 edi: 000b0d2e ebp: 00000400 esp: 021e8e10
Mar 7 09:13:55 lamvien kernel: ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Mar 7 09:13:55 lamvien kernel: Process cfsd (pid: 123, process nr: 21, stackpage=021e8000)
Mar 7 09:13:55 lamvien kernel: Stack: 000b0d2e 00000341 00000400 000b0d2e 02bd7cd0 00000e6f 00125392 00000341
Mar 7 09:13:55 lamvien kernel: 000b0d2e 00000400 000b0d2e 0000d5a1 01f3a900 00000000 00000001 0015b4cc
Mar 7 09:13:55 lamvien kernel: 00000341 000b0d2e 00000400 00000008 0000d5a1 0001d6ad 01f3a900 00000002
Mar 7 09:13:55 lamvien kernel: Call Trace: [getblk+54/956] [inode_getblk+68/412] [ext2_getblk+423/556] [ext2_file_write+389/1116] [sys_write+331/388] [do_bottom_half+59/96] [system_call+85/128]
Mar 7 09:13:55 lamvien kernel: Code: 39 38 75 24 66 39 58 04 75 1e 39 68 20 74 22 56 e8 43 fa ff
Mar 7 09:13:59 lamvien kernel: NFS server localhost not responding, still trying.
Mar 7 10:12:24 lamvien kernel: NFS server localhost not responding, still trying.
Mar 7 10:12:25 lamvien kernel: NFS server localhost not responding, still trying.
Mar 7 10:14:30 lamvien kernel: NFS server localhost not responding, still trying.
Mar 7 10:15:19 lamvien kernel: NFS server localhost OK.
Mar 7 10:15:19 lamvien last message repeated 2 times
Mar 8 20:48:46 lamvien kernel: Unable to handle kernel paging request at virtual address cf08ed98
Mar 8 20:48:46 lamvien kernel: current->tss.cr3 = 00101000, Xr3 = 00101000
Mar 8 20:48:46 lamvien kernel: *pde = 00000000
Mar 8 20:48:46 lamvien kernel: Oops: 0000
Mar 8 20:48:46 lamvien kernel: CPU: 0
Mar 8 20:48:46 lamvien kernel: EIP: 0010:[get_hash_table+52/172]
Mar 8 20:48:46 lamvien kernel: EFLAGS: 00010202
Mar 8 20:48:46 lamvien kernel: eax: 0f08ed98 ebx: 004d0301 ecx: 00001000 edx: 00000a6b
Mar 8 20:48:46 lamvien kernel: esi: 00000301 edi: 0000196a ebp: 00001000 esp: 0009ae24
Mar 8 20:48:46 lamvien kernel: ds: 0018 es: 0018 fs: 0018 gs: 0018 ss: 0018
Mar 8 20:48:46 lamvien kernel: Process kswapd (pid: 3, process nr: 3, stackpage=0009a000)
Mar 8 20:48:46 lamvien kernel: Stack: 004dbb18 0000196a 00000301 00000000 001e0301 00000a6b 0012606d 00000301
Mar 8 20:48:46 lamvien kernel: 0000196a 00001000 00000301 00000001 001e0301 00000000 0000196a 00000301
Mar 8 20:48:46 lamvien kernel: 00000400 004dbb18 00000301 001ed618 0017bbb8 00000000 0017c9de 001ed618
Mar 8 20:48:46 lamvien kernel: Call Trace: [brw_page+313/896] [write_intr+0/192] [ide_intr+62/100] [do_fast_IRQ+42/76] [ll_rw_page+155/168] [con_type_init+412/448] [con_type_init+412/448]
Mar 8 20:48:46 lamvien kernel: [rw_swap_page+383/736] [con_type_init+412/448] [do_fast_IRQ+42/76] [fast_IRQ14_interrupt+65/112] [swap_out_vma+738/1072] [con_type_init+412/448] [ide_set_handler+38/44] [swap_out_process+143/184]
Mar 8 20:48:46 lamvien kernel: [swap_out+297/364] [try_to_free_page+138/184] [kswapd+317/332] [init+70/612] [kswapd+0/332]
Mar 8 20:48:46 lamvien kernel: Code: 39 38 75 24 66 39 58 04 75 1e 39 68 20 74 22 56 e8 43 fa ff
processor : 0
cpu : 586
model : Pentium 75+
vendor_id : GenuineIntel
stepping : 5
fdiv_bug : no
hlt_bug : no
f00f_bug : yes
fpu : yes
fpu_exception : yes
cpuid : yes
wp : yes
flags : fpu vme de pse tsc msr mce cx8
bogomips : 39.73
Character devices:
1 mem
2 pty
3 ttyp
4 ttyp
5 cua
7 vcs

Block devices:
2 fd
3 ide0
22 ide1
ext2
minix
msdos
nodev proc
nodev nfs
iso9660
0: 12962340 timer
1: 383899 keyboard
2: 0 cascade
3: 9831167 + serial
4: 420852 + serial
11: 4 NE2000
13: 1 math error
14: 14259599 + ide0
15: 280 + ide1
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0080-009f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : npu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial(auto)
0300-031f : NE2000
0376-0376 : ide1
03c0-03df : vga+
03f0-03f5 : floppy
03f6-03f6 : ide0
03f7-03f7 : floppy DIR
03f8-03ff : serial(auto)
3000-3007 : IDE DMA
3008-300f : IDE DMA
4.05 4.18 4.50 5/58 30098
total: used: free: shared: buffers: cached:
Mem: 48254976 47652864 602112 15777792 8138752 8949760
Swap: 133885952 20561920 113324032
MemTotal: 47124 kB
MemFree: 588 kB
MemShared: 15408 kB
Buffers: 7948 kB
Cached: 8740 kB
SwapTotal: 130748 kB
SwapFree: 110668 kB
Total: 47124
Used: 46472
Free: 652
1Count: 37908
Shared: 8564
ppp 5 1 (autoclean)
dummy0 1 1 (autoclean)
memstat 1 0
/dev/root / ext2 rw 0 0
none /proc proc rw 0 0
/dev/hdb1 /secure ext2 rw 0 0
localhost:/null /home/crypt nfs rw,intr,addr=localhost 0 0
/dev/hdd /cdrom iso9660 ro,noexec,nosuid,nodev 0 0
PCI devices found:
Bus 0, device 18, function 0:
VGA compatible controller: S3 Inc. Trio32/Trio64 (rev 0).
Medium devsel. IRQ 5.
Non-prefetchable 32 bit memory at 0xf0000000.
Bus 0, device 7, function 1:
IDE interface: Intel 82371 Triton PIIX (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=32.
I/O at 0x3000.
Bus 0, device 7, function 0:
ISA bridge: Intel 82371 Triton PIIX (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 0, device 0, function 0:
Host bridge: Intel 82437 (rev 1).
Medium devsel. Master Capable. Latency=32.
cpu 10834293 1550761 573817 16965
disk 181918 317864 0 52
disk_rio 117760 123541 0 52
disk_wio 64158 194323 0 0
disk_rblk 337562 247082 0 104
disk_wblk 206742 388646 0 0
page 782504 7111920
swap 17008 23462
intr 38119726 12975836 384658 0 9832279 420852 0 2 16 0 0 0 4 0 1 14505798 280
ctxt 16447062
btime 889262150
processes 30150
Linux version 2.0.33 (root@lamvien) (gcc version 2.7.2.1) #5 Thu Mar 5 17:34:27 CET 1998
Attached devices: none

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