Messages in this thread | | | From | snagg <> | Subject | schedule() problem | Date | Sat, 15 May 2004 16:13:37 +0200 |
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[1.] schedule() freeze
[2.]because of a failed control the system crashs , maybe the problem is that the active_mm of a task is NULL .
[3.]scheduler
[4.]Linux version 2.4.22 (root@midas) (gcc version 3.2.3) #6 Tue Sep 2 17:43:01 PDT 2003
[5.]I only have a photo alternauts.altervista.org/schedfault.jpg because after that the system crashs
[6.]Cannot recreate the problem , sorry
[7.1] sh 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 aVaTaR 2.4.22 #6 Tue Sep 2 17:43:01 PDT 2003 i686 unknown unknown GNU/Linux
Gnu C 3.3.3 Gnu make 3.80 util-linux 2.12 mount 2.12 modutils 2.4.25 e2fsprogs 1.35 jfsutils 1.1.6 xfsprogs 2.6.10 pcmcia-cs 3.2.7 quota-tools 3.09. PPP 2.4.2 Linux C Library 2.3.2 Dynamic linker (ldd) 2.3.2 Linux C++ Library 5.0.5 Procps 2.0.18 Net-tools 1.60 Kbd 1.12 Sh-utils 5.2.1 Modules Loaded soundcore appletalk ipx usb-ohci usbcore 8139too mii crc32 pcmcia_core ide-scsi agpgart
[7.2] processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 1 model name : Intel(R) Pentium(R) 4 CPU 1.70GHz stepping : 2 cpu MHz : 1716.928 cache size : 256 KB 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 bogomips : 3420.97
[7.3] soundcore 3332 0 (autoclean) appletalk 21540 1 (autoclean) ipx 17348 1 (autoclean) usb-ohci 18888 0 (unused) usbcore 58400 1 [usb-ohci] 8139too 15240 1 mii 2304 0 [8139too] crc32 2880 0 [8139too] pcmcia_core 40032 0 ide-scsi 9424 0 agpgart 39576 0 (unused)
[7.4] cat /proc/ioports 0000-001f : dma1 0020-003f : pic1 0040-005f : timer 0060-006f : keyboard 0070-007f : rtc 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 c000-cfff : PCI Bus #01 c000-c07f : Silicon Integrated Systems [SiS] SiS65x/M650/740 PCI/AGP VGA Display Adapter d800-d8ff : Silicon Integrated Systems [SiS] Sound Controller dc00-dc7f : Silicon Integrated Systems [SiS] Sound Controller e000-e0ff : Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ e000-e0ff : 8139too f000-f00f : Silicon Integrated Systems [SiS] 5513 [IDE] f000-f007 : ide0 f008-f00f : ide1
cat /proc/iomem 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000c7fff : Video ROM 000f0000-000fffff : System ROM 00100000-0dfeffff : System RAM 00100000-002c5635 : Kernel code 002c5636-0035f063 : Kernel data 0dff0000-0dff2fff : ACPI Non-volatile Storage 0dff3000-0dffffff : ACPI Tables e0000000-e7ffffff : PCI Bus #01 e0000000-e7ffffff : Silicon Integrated Systems [SiS] SiS65x/M650/740 PCI/AGP VGA Display Adapter e0000000-e017ffff : vesafb e8000000-ebffffff : Silicon Integrated Systems [SiS] 650 Host ec000000-ec0fffff : PCI Bus #01 ec000000-ec01ffff : Silicon Integrated Systems [SiS] SiS65x/M650/740 PCI/AGP VGA Display Adapter ec100000-ec100fff : Silicon Integrated Systems [SiS] USB 1.0 Controller ec100000-ec100fff : usb-ohci ec101000-ec101fff : Silicon Integrated Systems [SiS] USB 1.0 Controller (#2) ec101000-ec101fff : usb-ohci ec102000-ec1020ff : Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ ec102000-ec1020ff : 8139too fec00000-fec00fff : reserved fee00000-fee00fff : reserved ffff0000-ffffffff : reserved
[7.5] 00:00.0 Host bridge: Silicon Integrated Systems [SiS] 650/M650 Host (rev 01) Subsystem: Silicon Integrated Systems [SiS] 650/M650 Host 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: Memory at e8000000 (32-bit, non-prefetchable) [size=64M] Capabilities: [c0] 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>
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge (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=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 Bus: primary=00, secondary=01, subordinate=01, sec-latency=32 I/O behind bridge: 0000c000-0000cfff Memory behind bridge: ec000000-ec0fffff Prefetchable memory behind bridge: e0000000-e7ffffff BridgeCtl: Parity- SERR+ NoISA+ VGA+ MAbort- >Reset- FastB2B-
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS85C503/5513 (LPC Bridge) (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- Latency: 0
00:02.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 07) (prog-if 10 [OHCI]) Subsystem: Silicon Integrated Systems [SiS] USB 1.0 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: 32 (20000ns max), cache line size 08 Interrupt: pin D routed to IRQ 5 Region 0: Memory at ec100000 (32-bit, non-prefetchable) [size=4K]
00:02.3 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 07) (prog-if 10 [OHCI]) Subsystem: Silicon Integrated Systems [SiS] USB 1.0 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: 32 (20000ns max), cache line size 08 Interrupt: pin A routed to IRQ 11 Region 0: Memory at ec101000 (32-bit, non-prefetchable) [size=4K]
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0) (prog-if 80 [Master]) Subsystem: Silicon Integrated Systems [SiS] SiS5513 EIDE Controller (A,B step) 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: 128 Region 4: I/O ports at f000 [size=16]
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] Sound Controller (rev a0) Subsystem: Giga-byte Technology: Unknown device a001 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 (13000ns min, 2750ns max) Interrupt: pin C routed to IRQ 9 Region 0: I/O ports at d800 [size=256] Region 1: I/O ports at dc00 [size=128] Capabilities: [48] 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-
00:10.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) Subsystem: Realtek Semiconductor Co., Ltd. RT8139 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 (8000ns min, 16000ns max) Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at e000 [size=256] Region 1: Memory at ec102000 (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: Silicon Integrated Systems [SiS] 65x/M650/740 PCI/AGP VGA Display Adapter (prog-if 00 [VGA]) Subsystem: Silicon Integrated Systems [SiS] 65x/M650/740 PCI/AGP VGA Display Adapter 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 5 BIST result: 00 Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M] Region 1: Memory at ec000000 (32-bit, non-prefetchable) [size=128K] Region 2: I/O ports at c000 [size=128] Capabilities: [40] 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: [50] AGP version 2.0 Status: RQ=16 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>
[7.6] Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: HL-DT-ST Model: CD-RW GCE-8240B Rev: 1.07 Type: CD-ROM ANSI SCSI revision: 02
[X] I read the code of sched.c in kernel 2.4.26 and it seems not to be changed in the section in wich the problem occurs, however I cannot exploit again the scedule() so I'm not sure that the error is still there.The kernel is the official slackware ones.
- -- You can download my public key from : http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xAF03412D
Per me si va tra la perduta gente
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