FC4 x86_64: oom-killer: gfp_mask=0x201d2, order=0

Schlueri schlueri-lists at schlicker.org
Tue Apr 11 09:52:43 UTC 2006 

Hi Liste,

ich habe einen Root-Server mit FC4 x86_64 in Betrieb (AMD Opteron(tm)
Processor 146). Die Machine hat 1GB RAM und 2GB Swap. Das System ist auf
einem Software-Raid (ext3), auf jeder Platte 1GB SWAP-Partition
(hda2/hdc2). 

Der Kernel ist 2.6.16-1.2069_FC4 #1 Tue Mar 28 12:19:04 EST 2006 x86_64
x86_64 x86_64 GNU/Linux.

Nun zu meinem Problem. Der Server arbeitet als Webserver mit PHP/MySQL
(Typo3) und Mailserver (Qmail-Toaster mit clamav & Spamassassin).

Ab und an geht der Server scheinbar auf Überlast, obwohl nicht mehr
Betrieb ist als sonst. Der Swap steigt an und dadurch auch die Load, bis
der Swap scheinbar aufgebraucht ist, dann reagiert er nicht mehr. Auf
der seriellen Konsole wiederholt sich dann im 1-2 Sekunden Takt immer
wieder unten stehende Fehlermeldung.

Der Rechner ist nur noch über einen Hardware-Reset wieder in Gang zu
bekommen. 

Hat jemand einen Tipp für mich wo ich anfangen kann das Problem zu
lösen. Natürlich habe schon gesucht aber noch keinen richtigen Ansatz
gefunden. Wo kann ich ansetzen? Neuen Kernel kompilieren? Evtl.
irgendwelche Parameter ändern?

Vielen Dank für Eure Hilfe! 

Grüße
Dirk

== oom-killer ==>

oom-killer: gfp_mask=0x201d2, order=0

Call Trace: <ffffffff8014faed>{out_of_memory+50}
<ffffffff801519d7>{__alloc_pages+570}
       <ffffffff80152df6>{__do_page_cache_readahead+222}
<ffffffff8013c829>{autoremove_wake_function+9}
       <ffffffff8012466e>{__wake_up_common+64}
<ffffffff801246da>{__wake_up+56}
       <ffffffff8014e2d2>{filemap_nopage+325}
<ffffffff80159fad>{__handle_mm_fault+991}
       <ffffffff80334808>{_spin_unlock_irq+9}
<ffffffff80336429>{do_page_fault+1033}
       <ffffffff8017e3cc>{poll_freewait+85}
<ffffffff8010afd5>{error_exit+0}
DMA per-cpu:
cpu 0 hot: high 0, batch 1 used:0
cpu 0 cold: high 0, batch 1 used:0
DMA32 per-cpu:
cpu 0 hot: high 186, batch 31 used:7
cpu 0 cold: high 62, batch 15 used:59
Normal per-cpu: empty
HighMem per-cpu: empty
Free pages:        7996kB (0kB HighMem)
Active:111038 inactive:99974 dirty:0 writeback:0 unstable:0 free:1999
slab:11483 mapped:213871 pagetables:21392
DMA free:4020kB min:44kB low:52kB high:64kB active:3372kB
inactive:2792kB present:11800kB pages_scanned:330471 all_unreclaimable?
yes
lowmem_reserve[]: 0 994 994 994
DMA32 free:3976kB min:4008kB low:5008kB high:6012kB active:440780kB
inactive:397104kB present:1018020kB pages_scanned:2999893
all_unreclaimable? yes
lowmem_reserve[]: 0 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
DMA: 1*4kB 2*8kB 0*16kB 1*32kB 0*64kB 1*128kB 1*256kB 1*512kB 1*1024kB
1*2048kB 0*4096kB = 4020kB
DMA32: 48*4kB 13*8kB 4*16kB 1*32kB 8*64kB 2*128kB 1*256kB 1*512kB
0*1024kB 1*2048kB 0*4096kB = 3976kB
Normal: empty
HighMem: empty
Swap cache: add 9590453, delete 9590184, find 5133093/5996259, race 110
+140
Free swap  = 0kB
Total swap = 2104496kB

== lspci ==>

# lspci -v
00:06.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8111 PCI (rev 07)
(prog-if 00 [Normal decode])
        Flags: bus master, 66Mhz, medium devsel, latency 32
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
        I/O behind bridge: 0000b000-0000bfff
        Memory behind bridge: fca00000-feafffff
        Prefetchable memory behind bridge: ff500000-ff5fffff
        Capabilities: [c0] HyperTransport: Slave or Primary Interface
        Capabilities: [f0] HyperTransport: Interrupt Discovery and
Configuration

00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-8111 LPC (rev 05)
        Subsystem: Advanced Micro Devices [AMD] AMD-8111 LPC
        Flags: bus master, 66Mhz, medium devsel, latency 0

00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-8111 IDE (rev
03) (prog-if 8a [Master SecP PriP])
        Subsystem: Advanced Micro Devices [AMD] AMD-8111 IDE
        Flags: bus master, medium devsel, latency 32
        I/O ports at ffa0 [size=16]

00:07.2 SMBus: Advanced Micro Devices [AMD] AMD-8111 SMBus 2.0 (rev 02)
        Subsystem: Advanced Micro Devices [AMD] AMD-8111 SMBus 2.0
        Flags: medium devsel, IRQ 10
        I/O ports at cc00 [size=32]

00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-8111 ACPI (rev 05)
        Subsystem: Advanced Micro Devices [AMD] AMD-8111 ACPI
        Flags: medium devsel

00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
HyperTransport Technology Configuration
        Flags: fast devsel
        Capabilities: [80] HyperTransport: Host or Secondary Interface
        Capabilities: [a0] HyperTransport: Host or Secondary Interface
        Capabilities: [c0] HyperTransport: Host or Secondary Interface

00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Address Map
        Flags: fast devsel

00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
DRAM Controller
        Flags: fast devsel

00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Miscellaneous Control
        Flags: fast devsel

01:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-8111 USB (rev
0b) (prog-if 10 [OHCI])
        Subsystem: Advanced Micro Devices [AMD] AMD-8111 USB
        Flags: bus master, medium devsel, latency 32, IRQ 16
        Memory at feafd000 (32-bit, non-prefetchable) [size=4K]

01:00.1 USB Controller: Advanced Micro Devices [AMD] AMD-8111 USB (rev
0b) (prog-if 10 [OHCI])
        Subsystem: Advanced Micro Devices [AMD] AMD-8111 USB
        Flags: bus master, medium devsel, latency 32, IRQ 16
        Memory at feafe000 (32-bit, non-prefetchable) [size=4K]

01:0b.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
(prog-if 00 [VGA])
        Subsystem: ATI Technologies Inc Rage XL
        Flags: bus master, stepping, medium devsel, latency 32, IRQ 11
        Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
        I/O ports at b800 [size=256]
        Memory at feaff000 (32-bit, non-prefetchable) [size=4K]
        Expansion ROM at feac0000 [disabled] [size=128K]
        Capabilities: [5c] Power Management version 2

01:0d.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5705
Gigabit Ethernet (rev 03)
        Subsystem: Broadcom Corporation NetXtreme BCM5705 Gigabit
Ethernet
        Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 16
        Memory at feab0000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [48] Power Management version 2
        Capabilities: [50] Vital Product Data
        Capabilities: [58] Message Signalled Interrupts: 64bit+
Queue=0/3 Enable-

01:0e.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5705
Gigabit Ethernet (rev 03)
        Subsystem: Broadcom Corporation NetXtreme BCM5705 Gigabit
Ethernet
        Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 17
        Memory at feae0000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [48] Power Management version 2
        Capabilities: [50] Vital Product Data
        Capabilities: [58] Message Signalled Interrupts: 64bit+
Queue=0/3 Enable-

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