Messages in this thread | | | Date | Wed, 26 Apr 2006 01:06:29 -0300 | From | "Gustavo Kellermann" <> | Subject | PROBLEM: system freeze while acessing a specific iso image or the damaged CD from it was taken |
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[1.] One line summary of the problem: system freeze while acessing a specific iso image or the damaged CD from it was taken
[2.] Full description of the problem/report: I took a CD with the proceedings of a congress (in portuguese) for copying. I done a copy with something like # dd if=device of=file.iso This command finished reporting a "IO error" but I mounted the ISO image with # mkdir test # mount -o loop -t iso9660 file.iso test and tried to list one specific directory with ls, then the system hangs: # cd test/II_Forum_IA_2001 # ls Then the system was completely freezed. I was in a X terminal, and couldn't change to a text terminal, and even the numlock/capslock keys didn't work anymore. I tried this in a Ubuntu 5.04 and a Fedora Core 4 systems, with the same results (I will send information from the Fedora). The same happened when I tried to access the CD directly. Interesting enough, I was able to read this directory in a Windows machine and extract the file I wanted, and I am not sure if that time all files were present or not.
[3.] Keywords (i.e., modules, networking, kernel): Not sure.
[4.] Kernel version (from /proc/version): Linux version 2.6.11-1.1369_FC4 (bhcompile@decompose.build.redhat.com) (gcc version 4.0.0 20050525 (Red Hat 4.0.0-9)) #1 Thu Jun 2 22:55:56 EDT 2005
[5.] Output of Oops.. message No Oops message, but I found this in /var/log/messages: Apr 25 22:54:34 localhost kernel: loop: loaded (max 8 devices) Apr 25 22:54:36 localhost kernel: SELinux: initialized (dev loop0, type iso9660), uses genfs_contexts
[6.] A small shell script or example program which triggers the problem (if possible) - download the file example_freeze.iso (14MB) from: http://gakeller.no-ip.org:18080/~gakeller/example_freeze.iso It's my cable at home. It will be a bit slow, but I don't have anything better now :-( Please let me know when you downloaded this file, because my server is normally restricted tto a known range of IPs. - execute: mkdir test mount -o loop -t iso9660 example_freeze.iso test cd tst/II_Forum_IA_2001 ls
[7.] Environment [7.1.] Software (add the output of the ver_linux script here) If some fields are empty or look unusual you may have an old version. Compare to the current minimal requirements in Documentation/Changes.
Linux localhost.localdomain 2.6.11-1.1369_FC4 #1 Thu Jun 2 22:55:56 EDT 2005 i686 athlon i386 GNU/Linux
Gnu C 4.0.2 Gnu make 3.80 binutils 2.15.94.0.2.2 util-linux 2.12p mount 2.12p module-init-tools 3.1 e2fsprogs 1.37 jfsutils 1.1.7 reiserfsprogs 3.6.19 reiser4progs line xfsprogs 2.6.13 pcmcia-cs 3.2.8 quota-tools 3.12. PPP 2.4.2 isdn4k-utils 3.7 nfs-utils 1.0.7 Linux C Library 2.3.5 Dynamic linker (ldd) 2.3.5 Procps 3.2.5 Net-tools 1.60 Kbd 1.12 Sh-utils 5.2.1 udev 058 Modules Loaded nls_utf8 loop ipt_MASQUERADE iptable_nat parport_pc lp parport autofs4 rfcomm l2cap bluetooth sunrpc ipt_REJECT ipt_state ip_conntrack iptable_filter ip_tables vfat fat dm_mod video button battery ac md5 ipv6 ohci_hcd i2c_ali15x3 i2c_core snd_ens1371 gameport snd_rawmidi snd_ac97_codec snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc 8139too mii ext3 jbd
[7.2.] Processor information (from /proc/cpuinfo): processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 4 model name : AMD Athlon(TM)Processor stepping : 4 cpu MHz : 1060.065 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 mtrr pge mca cmov pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow bogomips : 2105.34
[7.3.] Module information (from /proc/modules): nls_utf8 2113 0 - Live 0xe0953000 loop 18121 0 - Live 0xe0972000 ipt_MASQUERADE 3265 1 - Live 0xe0970000 iptable_nat 21917 2 ipt_MASQUERADE, Live 0xe0a2c000 parport_pc 28933 1 - Live 0xe0aa7000 lp 13001 0 - Live 0xe0997000 parport 40585 2 parport_pc,lp, Live 0xe0a9c000 autofs4 29253 2 - Live 0xe0a93000 rfcomm 42333 0 - Live 0xe0a87000 l2cap 30661 5 rfcomm, Live 0xe0a4e000 bluetooth 56133 4 rfcomm,l2cap, Live 0xe0a3f000 sunrpc 167813 1 - Live 0xe0a5d000 ipt_REJECT 5569 1 - Live 0xe096d000 ipt_state 1857 3 - Live 0xe0955000 ip_conntrack 41497 3 ipt_MASQUERADE,iptable_nat,ipt_state, Live 0xe0a20000 iptable_filter 2881 1 - Live 0xe0802000 ip_tables 19521 5 ipt_MASQUERADE,iptable_nat,ipt_REJECT,ipt_state,iptable_filter, Live 0xe095a000 vfat 13377 1 - Live 0xe0965000 fat 54621 1 vfat, Live 0xe0988000 dm_mod 58101 0 - Live 0xe0978000 video 15941 0 - Live 0xe0960000 button 6609 0 - Live 0xe0957000 battery 9413 0 - Live 0xe0927000 ac 4805 0 - Live 0xe0934000 md5 4033 1 - Live 0xe0887000 ipv6 268097 10 - Live 0xe099c000 ohci_hcd 26849 0 - Live 0xe08c2000 i2c_ali15x3 7621 0 - Live 0xe0878000 i2c_core 21569 1 i2c_ali15x3, Live 0xe0920000 snd_ens1371 31649 2 - Live 0xe092b000 gameport 18633 1 snd_ens1371, Live 0xe08ca000 snd_rawmidi 30305 1 snd_ens1371, Live 0xe0905000 snd_ac97_codec 75961 1 snd_ens1371, Live 0xe0939000 snd_seq_dummy 3653 0 - Live 0xe087e000 snd_seq_oss 37057 0 - Live 0xe08fa000 snd_seq_midi_event 9153 1 snd_seq_oss, Live 0xe08a3000 snd_seq 62289 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event, Live 0xe090f000 snd_seq_device 8781 4 snd_rawmidi,snd_seq_dummy,snd_seq_oss,snd_seq, Live 0xe0896000 snd_pcm_oss 51185 0 - Live 0xe08d2000 snd_mixer_oss 17857 3 snd_pcm_oss, Live 0xe089d000 snd_pcm 100169 3 snd_ens1371,snd_ac97_codec,snd_pcm_oss, Live 0xe08e0000 snd_timer 33605 2 snd_seq,snd_pcm, Live 0xe08b8000 snd 57157 10 snd_ens1371,snd_rawmidi,snd_ac97_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer, Live 0xe08a9000 soundcore 10913 3 snd, Live 0xe0892000 snd_page_alloc 9669 1 snd_pcm, Live 0xe0883000 8139too 30017 0 - Live 0xe0889000 mii 5441 1 8139too, Live 0xe087b000 ext3 132553 2 - Live 0xe081d000 jbd 86233 1 ext3, Live 0xe0861000
[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem) # cat /proc/ioports 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-006f : keyboard 0070-0077 : rtc 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : ide1 01f0-01f7 : ide0 02f8-02ff : serial 0376-0376 : ide1 0378-037a : parport0 03c0-03df : vga+ 03f6-03f6 : ide0 03f8-03ff : serial 040b-040b : pnp 00:01 0480-048f : pnp 00:01 04d6-04d6 : pnp 00:01 0cf8-0cff : PCI conf1 b000-b0ff : 0000:00:0b.0 b000-b0ff : 8139too b400-b4ff : 0000:00:0a.0 b400-b4ff : 8139too b800-b83f : 0000:00:09.0 b800-b83f : Ensoniq AudioPCI d400-d40f : 0000:00:04.0 d400-d407 : ide0 d408-d40f : ide1 e400-e43f : 0000:00:11.0 e400-e403 : PM1a_EVT_BLK e404-e405 : PM1a_CNT_BLK e408-e40b : PM_TMR e418-e427 : GPE0_BLK e800-e81f : 0000:00:11.0 e800-e81f : motherboard e800-e81f : pnp 00:01
# cat /proc/iomem 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000ca3ff : Video ROM 000f0000-000fffff : System ROM 00100000-1ffebfff : System RAM 00100000-00375ab5 : Kernel code 00375ab6-004223ff : Kernel data 1ffec000-1ffeefff : ACPI Tables 1ffef000-1fffefff : reserved 1ffff000-1fffffff : ACPI Non-volatile Storage e9000000-e90000ff : 0000:00:0b.0 e9000000-e90000ff : 8139too e9800000-e98000ff : 0000:00:0a.0 e9800000-e98000ff : 8139too ea800000-ea800fff : 0000:00:06.0 ea800000-ea800fff : ohci_hcd eb800000-eb800fff : 0000:00:02.0 eb800000-eb800fff : ohci_hcd ec000000-edefffff : PCI Bus #01 ec000000-ecffffff : 0000:01:00.0 edf00000-efffffff : PCI Bus #01 ee000000-efffffff : 0000:01:00.0 f0000000-f7ffffff : 0000:00:00.0 ffff0000-ffffffff : reserved
[7.5.] PCI information ('lspci -vvv' as root) 00:00.0 Host bridge: ALi Corporation M1647 Northbridge [MAGiK 1 / MobileMAGiK 1] (rev 04) 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 Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M] Capabilities: [b0] AGP version 2.0 Status: RQ=28 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: [a4] 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-
00:01.0 PCI bridge: ALi Corporation PCI to AGP Controller (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 0000e000-0000dfff Memory behind bridge: ec000000-edefffff Prefetchable memory behind bridge: edf00000-efffffff Secondary status: 66Mhz+ FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03) (prog-if 10 [OHCI]) Subsystem: ALi Corporation USB 1.1 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 9 Region 0: Memory at eb800000 (32-bit, non-prefetchable) [size=4K] Capabilities: [60] 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-
00:04.0 IDE interface: ALi Corporation M5229 IDE (rev c4) (prog-if fa) Subsystem: ASUSTeK Computer Inc. A7A266 Motherboard 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 (500ns min, 1000ns max) Interrupt: pin A routed to IRQ 255 Region 4: I/O ports at d400 [size=16] Capabilities: [60] 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-
00:06.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03) (prog-if 10 [OHCI]) Subsystem: ALi Corporation USB 1.1 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 9 Region 0: Memory at ea800000 (32-bit, non-prefetchable) [size=4K] Capabilities: [60] 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: ALi Corporation M1533 PCI to ISA Bridge [Aladdin IV] Subsystem: ALi Corporation ALI M1533 Aladdin IV 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 Capabilities: [a0] 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: Ensoniq 5880 AudioPCI (rev 02) Subsystem: Ensoniq Sound Blaster 16PCI 4.1ch Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (3000ns min, 32000ns max) Interrupt: pin A routed to IRQ 6 Region 0: I/O ports at b800 [size=64] 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: 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 5 Region 0: I/O ports at b400 [size=256] Region 1: Memory at e9800000 (32-bit, non-prefetchable) [size=256] 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-
00:0b.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 10 Region 0: I/O ports at b000 [size=256] Region 1: Memory at e9000000 (32-bit, non-prefetchable) [size=256] 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-
00:11.0 Bridge: ALi Corporation M7101 Power Management Controller [PMU] 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-
01:00.0 VGA compatible controller: nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15) (prog-if 00 [VGA]) Subsystem: Palit Microsystems Inc. Palit Microsystems Daytona TNT2 M64 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 (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 ee000000 (32-bit, prefetchable) [size=32M] Expansion ROM at edff0000 [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=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>
[7.6.] SCSI information (from /proc/scsi/scsi) No scsi devices
[7.7.] Other information that might be relevant to the problem (please look in /proc and include all information that you think to be relevant):
[X.] Other notes, patches, fixes, workarounds: This is a comment. I was somewhat disappointed with this bug, because I conceive that a OS must be rock solid in respect to its the devices and the I/O. I was trying to read a corruped CD? OK, I could got a error message instead of the files I wanted, but never the system freezed. Some years ago, I was a novice with Linux and done a confusion with scsi numbers, so I formatted the root filesystem of a box running a 2.0.x kernel. The system progressively wrote more and more messages to the console - in the end was impossible to start any new process because binaries were washed out, but the system didn't freeze! What a rock solid implementation! That impressed me! Ok, I was happy when were installed safety mechanisms against formatting the root filesystem in a running machine, but I am even happier if I have a OS capable of surviving to any HW failure, including corrupted file systems. I would be very glad if you fix this bug (unfortunately I don't know how to do this) and perhaps solve something much more serious than just reading a corrupted CD.
Thanks very much for you work on the Linux Kernel, -- - Gustavo Adolfo Kellermann gakeller@gmail.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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