[2.6.13.3] occasional oops mostly in iget_locked

From: Folkert van Heusden
Date: Mon Dec 19 2005 - 14:01:34 EST

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1. occasional oops with 2.6.13.3
2. see 1
3. fs
4. 2.6.13.3
5. 2.6.11.6 (none tested inbetween)
6.
[199459.859838] Unable to handle kernel paging request at virtual address 74207475
[199459.859897] printing eip:
[199459.859917] *pde = 00000000
[199459.859947] Oops: 0000 [#1]
[199459.859963] SMP
[199459.859986] Modules linked in: wcfxo zaptel snd_intel8x0 snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_ac97_codec snd_pcm snd_timer snd tuner tvaudio bttv video_buf firmware_class i2c_algo_bit btcx_risc tveeprom police sch_ingress cls_u32 sch_sfq sch_cbq pl2303 usbserial nfs ipt_limit ipt_state ipt_REJECT usbnet ipt_MASQUERADE w83627hf hwmon_vid ipt_TOS eeprom iptable_mangle i2c_isa i2c_core bsd_comp soundcore snd_page_alloc snd_ac97_bus ip6table_filter ip6_tables iptable_filter ide_cd cdrom parport_pc parport microcode netconsole nfsd exportfs lockd sunrpc ipv6 rtl8150 3c59x mii iptable_nat ip_nat ip_tables ip_conntrack nfnetlink ppp_deflate zlib_deflate zlib_inflate ppp_async crc_ccitt ppp_generic slip slhc genrtc rd
[199459.863603] CPU: 0
[199459.863605] EIP: 0060:[<c0178c60>] Not tainted VLI
[199459.863608] EFLAGS: 00010202 (2.6.14-pwc)
[199459.864346] EIP is at find_inode_fast+0x10/0x50
[199459.864366] eax: d9a7509c ebx: 0003443a ecx: 74207475 edx: 74207475
[199459.864440] esi: f7d3da00 edi: c18c2a90 ebp: f7d3da00 esp: d0ce9dd8
[199459.864508] ds: 007b es: 007b ss: 0068
[199459.864577] Process tar (pid: 14803, threadinfo=d0ce8000 task=cd4a8540)
[199459.864596] Stack: 0003443a 0003443a 0000ffff c0179375 00000008 c18c2a90 0003443a c84174ec
[199459.865748] f7d3da00 c84174ec c01a36eb e7bc70d0 c034bb60 fffffff4 e4a26a9c c016cdde
[199459.866111] d0ce9f14 00000000 d0ce9e64 d0ce9f14 d0ce9e6c c016d0f5 c18e7500 da588035
[199459.866843] Call Trace:
[199459.866895] [<c0179375>] iget_locked+0x55/0xd0
[199459.867308] [<c01a36eb>] ext3_lookup+0x5b/0xb0
[199459.867419] [<c016cdde>] real_lookup+0xae/0xd0
[199459.867686] [<c016d0f5>] do_lookup+0x85/0x90
[199459.867731] [<c016d7c9>] __link_path_walk+0x6c9/0xd40
[199459.867798] [<c016de87>] link_path_walk+0x47/0xe0
[199459.868173] [<c016e1eb>] path_lookup+0x9b/0x1a0
[199459.868276] [<c016e44f>] __user_walk+0x2f/0x50
[199459.868802] [<c0168dda>] vfs_lstat+0x1a/0x50
[199459.869014] [<c0169442>] sys_lstat64+0x12/0x30
[199459.869059] [<c01c78d0>] _atomic_dec_and_lock+0x30/0x50
[199459.869276] [<c0176808>] dput+0x158/0x1d0
[199459.869329] [<c01605f0>] __fput+0x100/0x160
[199459.869929] [<c015ec53>] filp_close+0x43/0x70
[199459.869981] [<c0102dc9>] syscall_call+0x7/0xb
[199459.870063] Code: 09 89 d8 e8 f3 0d 00 00 eb af 85 db 89 d8 75 d1 eb cd 89 f6 8d bc 27 00 00 00 00 57 89 d7 56 89 c6 53 89 cb 8b 0f 85 c9 74 14 90 <8b> 11 0f 18 02 90 39 59 20 89 c8 74 13 85 d2 89 d1 75 ed 31 c0
[199459.874125] <3>BUG: soft lockup detected on CPU#0!
[199468.896310]
[199468.896326] Pid: 1024, comm: syslogd
[199468.896342] EIP: 0060:[<c02e76da>] CPU: 0
[199468.896364] EIP is at _spin_lock+0xa/0x10
[199468.896380] EFLAGS: 00000282 Not tainted (2.6.14-pwc)
[199468.896401] EAX: c0349274 EBX: 00000001 ECX: 00000000 EDX: f7d6a93c
[199468.896419] ESI: f75048f0 EDI: 00000001 EBP: f750489c DS: 007b ES: 007b
[199468.896447] CR0: 8005003b CR2: 08054424 CR3: 37df2000 CR4: 000006d0
[199468.896465] [<c01818d2>] __mark_inode_dirty+0x62/0x1d0
[199468.896518] [<c0121721>] current_fs_time+0x61/0x80
[199468.896564] [<c017992e>] inode_update_time+0x9e/0xc0
[199468.896681] [<c014226a>] __generic_file_aio_write_nolock+0x2ea/0x560
[199468.896725] [<c028359e>] sock_sendmsg+0xbe/0xe0
[199468.896812] [<c0142621>] __generic_file_write_nolock+0x91/0xc0
[199468.896881] [<c028488c>] sys_sendto+0xcc/0xe0
[199468.896917] [<c0130900>] autoremove_wake_function+0x0/0x50
[199468.897034] [<c0142996>] generic_file_writev+0x36/0xc0
[199468.897073] [<c0142960>] generic_file_writev+0x0/0xc0
[199468.897106] [<c015f620>] do_sync_write+0x0/0x110
[199468.897138] [<c015fd80>] do_readv_writev+0x290/0x2c0
[199468.897212] [<c015fe49>] vfs_writev+0x49/0x60
[199468.897320] [<c015ff57>] sys_writev+0x47/0xb0
[199468.897424] [<c0102dc9>] syscall_call+0x7/0xb
[738678.400635] Unable to handle kernel NULL pointer dereference at virtual address 00000008
[738678.400694] printing eip:
[738678.400712] *pde = 00000000
[738678.400741] Oops: 0000 [#1]
[738678.400757] SMP
[738678.400780] Modules linked in: tuner tvaudio bttv video_buf firmware_class i2c_algo_bit btcx_risc tveeprom usbnet wcfxo zaptel pl2303 usbserial nfs snd_pcm_oss snd_mixer_oss w83627hf hwmon_vid police eeprom sch_ingress i2c_isa i2c_core cls_u32 sch_sfq sch_cbq ipt_limit ipt_state ipt_REJECT ipt_MASQUERADE ipt_TOS iptable_mangle bsd_comp snd_intel8x0 snd_ac97_codec snd_pcm snd_timer snd soundcore snd_page_alloc snd_ac97_bus iptable_filter ip6table_filter ip6_tables ide_cd cdrom parport_pc parport microcode netconsole nfsd exportfs lockd sunrpc ipv6 rtl8150 3c59x mii iptable_nat ip_nat ip_tables ip_conntrack nfnetlink ppp_deflate zlib_deflate zlib_inflate ppp_async crc_ccitt ppp_generic slip slhc genrtc rd
[738678.404055] CPU: 0
[738678.404057] EIP: 0060:[<c0178c60>] Not tainted VLI
[738678.404058] EFLAGS: 00010202 (2.6.14-pwc)
[738678.404244] EIP is at find_inode_fast+0x10/0x50
[738678.404262] eax: d9a7509c ebx: 0004479e ecx: 00000008 edx: 00000008
[738678.404283] esi: f7c4f400 edi: c18afbf8 ebp: f7c4f400 esp: e9a75dd8
[738678.404302] ds: 007b es: 007b ss: 0068
[738678.404319] Process tar (pid: 31041, threadinfo=e9a74000 task=f7dd6a50)
[738678.404333] Stack: 0004479e 0004479e 0000ffff c0179375 00000006 c18afbf8 0004479e cdec0578
[738678.404480] f7c4f400 cdec0578 c01a36eb d7f1e034 c034bb60 fffffff4 c6f7809c c016cdde
[738678.405713] e9a75f14 00000000 e9a75e64 e9a75f14 e9a75e6c c016d0f5 c18e7500 c0d8e036
[738678.406699] Call Trace:
[738678.406738] [<c0179375>] iget_locked+0x55/0xd0
[738678.407059] [<c01a36eb>] ext3_lookup+0x5b/0xb0
[738678.407162] [<c016cdde>] real_lookup+0xae/0xd0
[738678.407200] [<c016d0f5>] do_lookup+0x85/0x90
[738678.407244] [<c016d7c9>] __link_path_walk+0x6c9/0xd40
[738678.407572] [<c016de87>] link_path_walk+0x47/0xe0
[738678.407698] [<c016e1eb>] path_lookup+0x9b/0x1a0
[738678.408263] [<c016e44f>] __user_walk+0x2f/0x50
[738678.408303] [<c0168dda>] vfs_lstat+0x1a/0x50
[738678.408366] [<c0169442>] sys_lstat64+0x12/0x30
[738678.408665] [<c01c78d0>] _atomic_dec_and_lock+0x30/0x50
[738678.408705] [<c0176808>] dput+0x158/0x1d0
[738678.409454] [<c01605f0>] __fput+0x100/0x160
[738678.409497] [<c015ec53>] filp_close+0x43/0x70
[738678.409535] [<c0102dc9>] syscall_call+0x7/0xb
[738678.409842] Code: 09 89 d8 e8 f3 0d 00 00 eb af 85 db 89 d8 75 d1 eb cd 89 f6 8d bc 27 00 00 00 00 57 89 d7 56 89 c6 53 89 cb 8b 0f 85 c9 74 14 90 <8b> 11 0f 18 02 90 39 59 20 89 c8 74 13 85 d2 89 d1 75 ed 31 c0
[738678.414151] <3>BUG: soft lockup detected on CPU#1!
[738687.762275]
[738687.762296] Pid: 9676, comm: multitail
[738687.762316] EIP: 0060:[<c02e76d7>] CPU: 1
[738687.762343] EIP is at _spin_lock+0x7/0x10
[738687.762362] EFLAGS: 00000282 Not tainted (2.6.14-pwc)
[738687.762382] EAX: c0349274 EBX: c18fc880 ECX: 00000010 EDX: c18e15ac
[738687.762402] ESI: f0000000 EDI: 0000ffff EBP: c18ea200 DS: 007b ES: 007b
[738687.762440] CR0: 80050033 CR2: b7f9b000 CR3: 32af6000 CR4: 000006d0
[738687.762463] [<c0179368>] iget_locked+0x48/0xd0
[738687.762525] [<c0190b88>] proc_get_inode+0x28/0x140
[738687.762576] [<c0193a2c>] proc_lookup+0xbc/0xd0
[738687.762632] [<c0190d85>] proc_root_lookup+0x25/0x70
[738687.762675] [<c016cdde>] real_lookup+0xae/0xd0
[738687.762726] [<c016d0f5>] do_lookup+0x85/0x90
[738687.762775] [<c016d7c9>] __link_path_walk+0x6c9/0xd40
[738687.762844] [<c016de87>] link_path_walk+0x47/0xe0
[738687.762886] [<c0153b2c>] unmap_region+0xfc/0x140
[738687.762932] [<c015ea09>] get_unused_fd+0x99/0xc0
[738687.762973] [<c016e1eb>] path_lookup+0x9b/0x1a0
[738687.763013] [<c016e978>] open_namei+0x88/0x5d0
[738687.763109] [<c014fb9e>] unmap_vmas+0xfe/0x240
[738687.763876] [<c016045b>] get_empty_filp+0x5b/0xd0
[738687.763914] [<c015e8e4>] filp_open+0x54/0x90
[738687.764016] [<c0153b2c>] unmap_region+0xfc/0x140
[738687.764112] [<c015ea09>] get_unused_fd+0x99/0xc0
[738687.764154] [<c015eb31>] do_sys_open+0x41/0xd0
[738687.764962] [<c0102dc9>] syscall_call+0x7/0xb
(hooray for netconsole!)
7. -
8 P4 3.2GHz, 2GB ram
8.1 system is a quiet busy system doing mail, databases, etc. On average 272 processes.
0 root@muur:/usr/src/linux/scripts$ ./ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux muur 2.6.14-pwc #1 SMP Wed Nov 9 18:09:12 CET 2005 i686 unknown
unknown GNU/Linux

Gnu C 3.3.3
Gnu make 3.80
binutils 2.15.90.0.1.1
util-linux 2.12h
mount 2.12h
module-init-tools 3.0
e2fsprogs 1.35
reiserfsprogs 2001------------->
reiser4progs line
PPP 2.4.1
nfs-utils 1.0.6
Linux C Library 2.3.3
Dynamic linker (ldd) 2.3.3
Linux C++ Library 5.0.5
Procps 3.2.3
Net-tools 1.60
Kbd 1.06
Sh-utils 5.2.1
Modules Loaded tuner tvaudio bttv video_buf firmware_class
i2c_algo_bit btcx_risc tveeprom wcfxo zaptel pl2303 usbserial nfs usbnet
w83627hf hwmon_vid eeprom i2c_isa i2c_core snd_pcm_oss snd_mixer_oss
police sch_ingress cls_u32 sch_sfq sch_cbq snd_intel8x0 snd_ac97_codec
snd_pcm snd_timer snd soundcore ipt_limit snd_page_alloc snd_ac97_bus
ipt_state ipt_REJECT ipt_MASQUERADE ipt_TOS iptable_mangle bsd_comp
ip6table_filter ip6_tables iptable_filter ide_cd cdrom parport_pc
parport microcode netconsole nfsd exportfs lockd sunrpc ipv6 rtl8150
3c59x mii iptable_nat ip_nat ip_tables ip_conntrack nfnetlink
ppp_deflate zlib_deflate zlib_inflate ppp_async crc_ccitt ppp_generic
slip slhc genrtc rd
8.2
0 root@muur:/usr/src/linux/scripts$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 3.20GHz
stepping : 9
cpu MHz : 3198.487
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
xtpr
bogomips : 6403.64

processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 3.20GHz
stepping : 9
cpu MHz : 3198.487
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
xtpr
bogomips : 6397.09

8.4
0 root@muur:/usr/src/linux/scripts$ cat /proc/ioports /proc/iomem
0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-006f : keyboard
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0290-0297 : pnp 00:09
0290-0297 : w83627hf
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial
0400-041f : 0000:00:1f.3
0480-04bf : 0000:00:1f.0
0680-06ff : pnp 00:09
0778-077a : parport0
0800-087f : 0000:00:1f.0
0800-0803 : PM1a_EVT_BLK
0804-0805 : PM1a_CNT_BLK
0808-080b : PM_TMR
0828-082f : GPE0_BLK
0cf8-0cff : PCI conf1
b000-bfff : PCI Bus #01
b000-b0ff : 0000:01:00.0
c000-cfff : PCI Bus #02
cf80-cf9f : 0000:02:01.0
d000-dfff : PCI Bus #03
d400-d4ff : 0000:03:0b.0
d400-d4fe : wcfxo
d880-d8ff : 0000:03:09.0
d880-d8ff : 0000:03:09.0
dc00-dc7f : 0000:03:03.0
df20-df3f : 0000:03:0d.0
df20-df3f : ne2k-pci
df40-df5f : 0000:03:0a.0
df40-df5f : uhci_hcd
df80-df9f : 0000:03:0a.1
df80-df9f : uhci_hcd
e800-e8ff : 0000:00:1f.5
e800-e8ff : Intel ICH5
ee80-eebf : 0000:00:1f.5
ee80-eebf : Intel ICH5
eec0-eedf : 0000:00:1d.0
eec0-eedf : uhci_hcd
ef00-ef1f : 0000:00:1d.1
ef00-ef1f : uhci_hcd
ef20-ef3f : 0000:00:1d.2
ef20-ef3f : uhci_hcd
ef80-ef9f : 0000:00:1d.3
ef80-ef9f : uhci_hcd
fc00-fc0f : 0000:00:1f.1
fc00-fc07 : ide0
fc08-fc0f : ide1
00000000-0009fbff : System RAM
00000000-00000000 : Crash kernel
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000cbfff : Video ROM
000f0000-000fffff : System ROM
00100000-7ff2ffff : System RAM
00100000-002e8c06 : Kernel code
002e8c07-0039913f : Kernel data
7ff30000-7ff3ffff : ACPI Tables
7ff40000-7ffeffff : ACPI Non-volatile Storage
7fff0000-7fffffff : reserved
88000000-880003ff : 0000:00:1f.1
e0000000-efffffff : 0000:00:00.0
f6600000-fe5fffff : PCI Bus #01
f8000000-fbffffff : 0000:01:00.0
fe600000-fe6fffff : PCI Bus #03
fe600000-fe61ffff : 0000:03:09.0
fe6fe000-fe6fefff : 0000:03:0c.0
fe6fe000-fe6fefff : bttv0
fe6ff000-fe6fffff : 0000:03:0c.1
fe800000-fe8fffff : PCI Bus #01
fe8c0000-fe8dffff : 0000:01:00.0
fe8fc000-fe8fffff : 0000:01:00.0
fe900000-fe9fffff : PCI Bus #02
fe9e0000-fe9fffff : 0000:02:01.0
fea00000-feafffff : PCI Bus #03
feafe000-feafefff : 0000:03:0b.0
feaff000-feaff0ff : 0000:03:0a.2
feaff000-feaff0ff : ehci_hcd
feaff400-feaff47f : 0000:03:09.0
feaff800-feafffff : 0000:03:03.0
febfb400-febfb4ff : 0000:00:1f.5
febfb400-febfb4ff : Intel ICH5
febfb800-febfb9ff : 0000:00:1f.5
febfb800-febfb9ff : Intel ICH5
febfbc00-febfbfff : 0000:00:1d.7
febfbc00-febfbfff : ehci_hcd
ffb80000-ffffffff : reserved

8.5
00:00.0 Host bridge: Intel Corp. 82875P Memory Controller Hub (rev 02)
Subsystem: Asustek Computer, Inc.: Unknown device 80f6
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=256M]
Capabilities: [e4] #09 [2106]
Capabilities: [a0] AGP version 3.0
Status: RQ=32 Iso- ArqSz=2 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>

00:01.0 PCI bridge: Intel Corp. 82875P Processor to AGP Controller (rev 02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000b000-0000bfff
Memory behind bridge: fe800000-fe8fffff
Prefetchable memory behind bridge: f6600000-fe5fffff
BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-

00:03.0 PCI bridge: Intel Corp. 82875P Processor to PCI to CSA Bridge (rev 02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fe900000-fe9fffff
Prefetchable memory behind bridge: fff00000-000fffff
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-

00:1d.0 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #1 (rev 02) (prog-if 00 [UHCI])
Subsystem: Asustek Computer, Inc. P4P800 Mainboard
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
Interrupt: pin A routed to IRQ 20
Region 4: I/O ports at eec0 [size=32]

00:1d.1 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #2 (rev 02) (prog-if 00 [UHCI])
Subsystem: Asustek Computer, Inc. P4P800 Mainboard
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
Interrupt: pin B routed to IRQ 21
Region 4: I/O ports at ef00 [size=32]

00:1d.2 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #3 (rev 02) (prog-if 00 [UHCI])
Subsystem: Asustek Computer, Inc. P4P800 Mainboard
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
Interrupt: pin C routed to IRQ 17
Region 4: I/O ports at ef20 [size=32]

00:1d.3 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #4 (rev 02) (prog-if 00 [UHCI])
Subsystem: Asustek Computer, Inc. P4P800 Mainboard
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
Interrupt: pin A routed to IRQ 20
Region 4: I/O ports at ef80 [size=32]

00:1d.7 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02) (prog-if 20 [EHCI])
Subsystem: Asustek Computer, Inc. P4P800 Mainboard
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
Interrupt: pin D routed to IRQ 18
Region 0: Memory at febfbc00 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] #0a [20a0]

00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface to PCI Bridge (rev c2) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=64
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fea00000-feafffff
Prefetchable memory behind bridge: fe600000-fe6fffff
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-

00:1f.0 ISA bridge: Intel Corp. 82801EB/ER (ICH5/ICH5R) LPC Bridge (rev 02)
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

00:1f.1 IDE interface: Intel Corp. 82801EB/ER (ICH5/ICH5R) Ultra ATA 100 Storage Controller (rev 02) (prog-if 8a [Master SecP PriP])
Subsystem: Asustek Computer, Inc. P4P800 Mainboard
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
Interrupt: pin A routed to IRQ 17
Region 0: I/O ports at <unassigned>
Region 1: I/O ports at <unassigned>
Region 2: I/O ports at <unassigned>
Region 3: I/O ports at <unassigned>
Region 4: I/O ports at fc00 [size=16]
Region 5: Memory at 88000000 (32-bit, non-prefetchable) [size=1K]

00:1f.3 SMBus: Intel Corp. 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
Subsystem: Asustek Computer, Inc. P4P800 Mainboard
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-
Interrupt: pin B routed to IRQ 5
Region 4: I/O ports at 0400 [size=32]

00:1f.5 Multimedia audio controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
Subsystem: Asustek Computer, Inc. P4P800 Mainboard
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
Interrupt: pin B routed to IRQ 23
Region 0: I/O ports at e800 [size=256]
Region 1: I/O ports at ee80 [size=64]
Region 2: Memory at febfb800 (32-bit, non-prefetchable) [size=512]
Region 3: Memory at febfb400 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:00.0 VGA compatible controller: ATI Technologies Inc Rage 128 Pro Ultra TF (prog-if 00 [VGA])
Subsystem: ATI Technologies Inc Rage Fury Pro/Xpert 2000 Pro
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 04
Interrupt: pin A routed to IRQ 10
Region 0: Memory at f8000000 (32-bit, prefetchable) [size=64M]
Region 1: I/O ports at b000 [size=256]
Region 2: Memory at fe8fc000 (32-bit, non-prefetchable) [size=16K]
Expansion ROM at fe8c0000 [disabled] [size=128K]
Capabilities: [50] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA+ AGP- GART64- 64bit- FW- Rate=<none>
Capabilities: [5c] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:01.0 Ethernet controller: Intel Corp. 82547EI Gigabit Ethernet Controller (LOM)
Subsystem: Asustek Computer, Inc.: Unknown device 80f7
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 (63750ns min), cache line size 04
Interrupt: pin A routed to IRQ 5
Region 0: Memory at fe9e0000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at cf80 [size=32]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-

03:03.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80) (prog-if 10 [OHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 808a
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 (8000ns max), cache line size 04
Interrupt: pin A routed to IRQ 11
Region 0: Memory at feaff800 (32-bit, non-prefetchable) [size=2K]
Region 1: I/O ports at dc00 [size=128]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA PME(D0-,D1-,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

03:09.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 24)
Subsystem: 3Com Corporation 3C905B Fast Etherlink XL 10/100
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 (2500ns min, 2500ns max), cache line size 04
Interrupt: pin A routed to IRQ 16
Region 0: I/O ports at d880 [size=128]
Region 1: Memory at feaff400 (32-bit, non-prefetchable) [size=128]
Expansion ROM at fe600000 [disabled] [size=128K]
Capabilities: [dc] 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-

03:0a.0 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 controller] (rev 50) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
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, cache line size 04
Interrupt: pin A routed to IRQ 22
Region 4: I/O ports at df40 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

03:0a.1 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 controller] (rev 50) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
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, cache line size 04
Interrupt: pin B routed to IRQ 18
Region 4: I/O ports at df80 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

03:0a.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 51) (prog-if 20 [EHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID): Unknown device 1234
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, cache line size 20
Interrupt: pin C routed to IRQ 19
Region 0: Memory at feaff000 (32-bit, non-prefetchable) [size=256]
Capabilities: [80] Power Management version 2
Flags: PMEClk+ DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

03:0b.0 Communication controller: Individual Computers - Jens Schoenfeld Intel 537
Subsystem: Intel Corp.: Unknown device 0003
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 (250ns min, 32000ns max)
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at d400 [size=256]
Region 1: Memory at feafe000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=55mA PME(D0+,D1-,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

03:0c.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
Subsystem: Hauppauge computer works Inc. WinTV Series
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 (4000ns min, 10000ns max)
Interrupt: pin A routed to IRQ 19
Region 0: Memory at fe6fe000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

03:0c.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
Subsystem: Hauppauge computer works Inc. WinTV Series
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 (1000ns min, 63750ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at fe6ff000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

03:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS)
Subsystem: Realtek Semiconductor Co., Ltd. RTL-8029(AS)
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-
Interrupt: pin A routed to IRQ 16
Region 0: I/O ports at df20 [size=32]

It seems to lead to a crash every weeks or so.
The last messsage I got via netconsole seems to be:
[972250.419638] svc: unknown version (0)
and this svc-thing seems to be triggered by nagios running every 5 minutes or so.

Oh in the startupscripts I have:
echo 2000000000 > /proc/sys/vm/dirty_writeback_centisecs
echo 2000000000 > /proc/sys/vm/dirty_expire_centisecs
echo 99 > /proc/sys/vm/dirty_ratio
echo 99 > /proc/sys/vm/dirty_background_ratio

Folkert van Heusden

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