PROBLEM: __free_pages_ok() OOPS
Hi,
This is my first post in this mailing list.
I'm using Redhat 7.2 distribution, with kernel v2.4.18. The only foreign module is NVDriver. Here is how the oops looks like:
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0129f1a>] Tainted: P
EFLAGS: 00210282
eax: c1127aac ebx: c10654e0 ecx: c10654e0 edx: c02a9120
esi: c10654e0 edi: 00000000 ebp: 000016e5 esp: cffa5f10
ds: 0018 es: 0018 ss: 0018
Process kswapd (pid: 4, stackpage=cffa5000)
Stack: c103c02c c02a9258 00000000 c10654e0 c02a9120 c10654e0 00000014 000016e5
c012977f ca212600 cffa4000 00000200 000001d0 c02a9244 00000000 ca212600
c13c5eac 00000000 00000020 000001d0 00000006 00000020 c0129a10 00000006
Call Trace: [<c012977f>] [<c0129a10>] [<c0129a7c>] [<c0129b1c>] [<c0129ba6>]
[<c0129cdd>] [<c0129c40>] [<c0105000>] [<c0105536>] [<c0129c40>]
Code: 0f 0b 89 d8 2b 05 8c eb 2f c0 c1 f8 02 69 c0 ef ee ee ee 3b ----------------------------
Here is the output of ksymoops:
Quoted 1 line
Quoted 1 line
EIP;
c0129f1a<__free_pages_ok+2a/230> <=====
Trace; c012977f <shrink_cache+1cf/340>
Trace; c0129a10 <shrink_caches+50/80>
Trace; c0129a7c <try_to_free_pages+3c/60>
Trace; c0129b1c <kswapd_balance_pgdat+4c/b0>
Trace; c0129ba6 <kswapd_balance+26/40>
Trace; c0129cdd <kswapd+9d/c0>
Trace; c0129c40 <kswapd+0/c0>
Trace; c0105000 <_stext+0/0>
Trace; c0105536 <kernel_thread+26/30>
Trace; c0129c40 <kswapd+0/c0>
Code; c0129f1a <__free_pages_ok+2a/230>
00000000 <_EIP>:
Code; c0129f1a <__free_pages_ok+2a/230> <=====
0: 0f 0b ud2a <=====
Code; c0129f1c <__free_pages_ok+2c/230>
2: 89 d8 mov %ebx,%eax
Code; c0129f1e <__free_pages_ok+2e/230>
4: 2b 05 8c eb 2f c0 sub 0xc02feb8c,%eax
Code; c0129f24 <__free_pages_ok+34/230>
a: c1 f8 02 sar $0x2,%eax
Code; c0129f27 <__free_pages_ok+37/230>
d: 69 c0 ef ee ee ee imul $0xeeeeeeef,%eax,%eax
Code; c0129f2d <__free_pages_ok+3d/230>
13: 3b 00 cmp (%eax),%eax
----------------------------
As I see, it's located in the funcion __free_pages_ok, which is located in /usr/src/linux/mm/alloc_pages.c. The oops is caused by a call to the macro BUG(). Here is the source of the file:
[...]
if (page->buffers)
BUG();
if (page->mapping)
BUG(); <---- HERE
if (!VALID_PAGE(page))
BUG(); [...]
I think that's the BUG() that triggers the oops, correct me if i'm wrong.
What I don't know is why page->mapping is nonzero. Does anyone here have a clue on this.
Thanks for your time.
Julian J. M.
----------------
For your information, and as recomended in the FAQ:
/proc/modules:
sr_mod 12056 0 (autoclean) via82cxxx_audio 18144 0 (autoclean) emu10k1 53952 0 (autoclean) ac97_codec 9440 0 (autoclean) [via82cxxx_audio emu10k1] sound 54924 0 (autoclean) [emu10k1] soundcore 3524 9 (autoclean) [via82cxxx_audio emu10k1 sound] NVdriver 945184 20 3c59x 25128 1 ipt_LOG 3232 1 (autoclean) iptable_filter 1664 1 (autoclean) ip_tables 13760 2 [ipt_LOG iptable_filter] ide-scsi 7712 0 vfat 9980 2 (autoclean) fat 30328 0 (autoclean) [vfat] rtc 5688 0 (autoclean)
Output of lspci -vvv:
00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03)
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: 8
Region 0: Memory at e8000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
Capabilities: [c0] 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-
00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 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: 0000f000-00000fff
Memory behind bridge: ec000000-edffffff
Prefetchable memory behind bridge: e0000000-e7ffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
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-
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22)
Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge
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. Bus Master IDE (rev 10) (prog-if 8a [Master SecP PriP])
Subsystem: VIA Technologies, Inc. Bus Master IDE
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: 32
Region 4: I/O ports at c000 [size=16]
Capabilities: [c0] 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-
00:07.2 USB Controller: VIA Technologies, Inc. UHCI USB (rev 10) (prog-if 00 [UHCI])
Subsystem: Unknown device 0925:1234
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: 32, cache line size 08
Interrupt: pin D routed to IRQ 3
Region 4: I/O ports at c400 [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-
00:07.3 USB Controller: VIA Technologies, Inc. UHCI USB (rev 10) (prog-if 00 [UHCI])
Subsystem: Unknown device 0925:1234
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: 32, cache line size 08
Interrupt: pin D routed to IRQ 3
Region 4: I/O ports at c800 [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-
00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30)
Subsystem: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
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-
Capabilities: [68] 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-
00:07.5 Multimedia audio controller: VIA Technologies, Inc. AC97 Audio Controller (rev 20)
Subsystem: Unknown device 5860:11d4 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 C routed to IRQ 10 Region 0: I/O ports at cc00 [size=256] Region 1: I/O ports at d000 [size=4] Region 2: I/O ports at d400 [size=4] Capabilities: [c0] 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-
00:08.0 SCSI storage controller: Adaptec AHA-7850 (rev 03)
Subsystem: Adaptec AHA-2904/Integrated AIC-7850 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: 32 (1000ns min, 1000ns max), cache line size 08 Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at d800 [disabled] [size=256] Region 1: Memory at ef001000 (32-bit, non-prefetchable) [size=4K] 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-
00:09.0 Multimedia audio controller: Creative Labs SB Live! EMU10000 (rev 08)
Subsystem: Creative Labs CT4832 SBLive! Value
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: 32 (500ns min, 5000ns max)
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at dc00 [size=32]
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-
00:09.1 Input device controller: Creative Labs SB Live! (rev 08)
Subsystem: Creative Labs Gameport Joystick
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: 32
Region 0: I/O ports at e000 [size=8]
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-
00:0a.0 Ethernet controller: 3Com Corporation 3c905C-TX [Fast Etherlink] (rev 74)
Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC Management NIC
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: 32 (2500ns min, 2500ns max), cache line size 08
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at e400 [size=128]
Region 1: Memory at ef000000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
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=2 PME-
01:00.0 VGA compatible controller: nVidia Corporation GeForce 256 (rev 10) (prog-if 00 [VGA])
Subsystem: Guillemot Corporation: Unknown device 5020
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: 248 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at ec000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at e0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [60] 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-
Capabilities: [44] AGP version 2.0
Status: RQ=31 SBA- 64bit- FW+ Rate=x1,x2
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>