Subject: linux-image-3.2.0-0.bpo.2-amd64: NULL pointer dereference in __fscache_read_or_alloc_pages Package: src:linux Version: 3.2.20-1~bpo60+1 Severity: important ** Please type your report below this line ***I have a number of machines running linux-image-3.2.0-0.bpo.2-amd64 from squeeze-backports that are experiencing a NULL pointer dereference bug in __fscache_read_or_alloc_pages fairly consistently. Out of ~120 machines at least 10 of them seem to experience a panic once a day. The full details of a typical panic as captured via netconsole are included below.
The relevant setup details are as follows:Third party applications (eg: matlab) are installed on an NFS server. Clients mount the exports (one fs/export per application) via nfsv4's root exports traversal mechanism (I forget what it's really called off hand). In the options they include "ro" and "fsc" and run cachefilesd (0.10.4 since 0.9-3 had an excessive debug logging bug - #620732) so that the mostly static and read-only application data can be cached locally.
The mount point for the cachefilesd looks like this: /dev/mapper/vg-fscache /var/cache/fscache ext4 rw,relatime,errors=panic,user_xattr,acl,barrier=1,data=ordered 0 0 The cachefilesd.conf file is also included below in case it matters.From all of the detailed panic reports I've looked at the bug seems to be triggered on a MATLAB comm, but that might just be that this is our less busy time of the year so there's more condor compute jobs running while the machines are otherwise idle. Since many of those jobs need the third party apps they'll tend to be using the fscache more frequently.
What that also means is that I haven't seen any of these bugs show up referencing data that's on one of our other nfsv3 mounts yet. They also all have fsc turned on. Not sure if that's relevant or just a red herring though.
Let me know if you need any more details. Thanks, Brian -- Package-specific info: ** Version: Linux version 3.2.0-0.bpo.2-amd64 (Debian 3.2.20-1~bpo60+1) (debian-kernel@lists.debian.org) (gcc version 4.4.5 (Debian 4.4.5-8) ) #1 SMP Fri Jun 29 20:42:29 UTC 2012 ** Command line: BOOT_IMAGE=/vmlinuz-3.2.0-0.bpo.2-amd64 root=/dev/mapper/vg-root ro panic=30 rootdelay=10 quiet ** Tainted: PO (4097) * Proprietary module has been loaded. * Out-of-tree module has been loaded. ** Kernel log: [ 28.191814] ACPI: Power Button [PWRB] [ 28.191852] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input4 [ 28.191874] ACPI: Power Button [PWRF] [ 28.200722] wmi: Mapper loaded [ 28.658193] i801_smbus 0000:00:1f.3: PCI INT C -> GSI 18 (level, low) -> IRQ 18 [ 28.888998] tpm_tis 00:0b: 1.2 TPM (device-id 0xB, rev-id 16) [ 28.949523] input: HP WMI hotkeys as /devices/virtual/input/input5 [ 29.264980] nvidia: module license 'NVIDIA' taints kernel. [ 29.264983] Disabling lock debugging due to kernel taint [ 29.346355] nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 29.346362] nvidia 0000:01:00.0: setting latency timer to 64 [ 29.346366] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=io+mem [ 29.346425] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 295.59 Wed Jun 6 21:19:40 PDT 2012 [ 29.610240] snd_hda_intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22 [ 29.610287] snd_hda_intel 0000:00:1b.0: irq 48 for MSI/MSI-X [ 29.610308] snd_hda_intel 0000:00:1b.0: setting latency timer to 64 [ 29.668854] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input6 [ 30.548826] EXT4-fs (dm-0): re-mounted. Opts: (null) [ 30.726930] EXT4-fs (dm-0): re-mounted. Opts: errors=panic [ 30.864134] scsi_verify_blk_ioctl: 14 callbacks suppressed [ 30.864136] mdadm: sending ioctl 1261 to a partition! [ 30.864138] mdadm: sending ioctl 1261 to a partition! [ 30.871044] mdadm: sending ioctl 1261 to a partition! [ 30.871055] mdadm: sending ioctl 1261 to a partition! [ 30.879765] mdadm: sending ioctl 1261 to a partition! [ 30.879776] mdadm: sending ioctl 1261 to a partition! [ 30.888659] mdadm: sending ioctl 1261 to a partition! [ 30.888663] mdadm: sending ioctl 1261 to a partition! [ 30.889120] mdadm: sending ioctl 800c0910 to a partition! [ 30.889122] mdadm: sending ioctl 800c0910 to a partition! [ 30.910763] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 30.912552] uhci_hcd: USB Universal Host Controller Interface driver [ 30.941330] fuse init (API version 7.17) [ 30.957496] ipmi message handler version 39.2 [ 30.968837] IPMI System Interface driver. [ 30.968859] ipmi_si: probing via SMBIOS [ 30.968860] ipmi_si: SMBIOS: mem 0x0 regsize 1 spacing 1 irq 0 [ 30.968862] ipmi_si: Adding SMBIOS-specified kcs state machine [ 30.968864] ipmi_si: Trying SMBIOS-specified kcs state machine at mem address 0x0, slave address 0x20, irq 0 [ 30.968866] ipmi_si: Could not set up I/O space [ 30.990363] ipmi device interface [ 30.991828] IPMI Watchdog: driver initialized[ 31.920067] Adding 7188476k swap on /dev/mapper/vg-swap. Priority:-1 extents:1 across:7188476k [ 38.509864] kjournald starting. Commit interval 5 seconds
[ 38.510205] EXT3-fs (sda1): using internal journal [ 38.510211] EXT3-fs (sda1): mounted filesystem with ordered data mode [ 38.560052] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: errors=panic,acl,user_xattr [ 38.607643] EXT4-fs (dm-3): mounted filesystem with ordered data mode. Opts: errors=panic [ 38.693342] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: errors=panic,user_xattr [ 39.943225] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X [ 39.999046] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X [ 39.999518] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 43.176227] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 43.176661] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 47.167840] netconsole: local port 6665 [ 47.167842] netconsole: local IP 0.0.0.0 [ 47.167843] netconsole: interface 'eth0' [ 47.167844] netconsole: remote port 516 [ 47.167845] netconsole: remote IP <snip/> [ 47.167846] netconsole: remote ethernet address <snip/> [ 47.167848] netconsole: local IP <snip/> [ 47.167948] console [netcon0] enabled [ 47.167949] netconsole: network logging started [ 47.359522] RPC: Registered named UNIX socket transport module. [ 47.359724] RPC: Registered udp transport module. [ 47.359887] RPC: Registered tcp transport module. [ 47.360046] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 47.400339] FS-Cache: Loaded [ 47.420781] FS-Cache: Netfs 'nfs' registered for caching [ 47.433945] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 47.900469] microcode: CPU0 sig=0x206a7, pf=0x2, revision=0x17 [ 48.142834] microcode: CPU1 sig=0x206a7, pf=0x2, revision=0x17 [ 48.144948] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x17 [ 48.147105] microcode: CPU3 sig=0x206a7, pf=0x2, revision=0x17 [ 48.149111] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba [ 48.199930] microcode: CPU0 updated to revision 0x28, date = 2012-04-24 [ 48.209174] microcode: CPU1 updated to revision 0x28, date = 2012-04-24 [ 48.218409] microcode: CPU2 updated to revision 0x28, date = 2012-04-24 [ 48.227595] microcode: CPU3 updated to revision 0x28, date = 2012-04-24 [ 48.281295] microcode: Microcode Update Driver: v2.00 removed. [ 48.751770] CacheFiles: Loaded [ 53.776365] FS-Cache: Cache "mycache" added (type cachefiles) [ 53.785433] CacheFiles: File cache on dm-4 registered [ 95.975565] sshd (2581): /proc/2581/oom_adj is deprecated, please use /proc/2581/oom_score_adj instead. [ 1522.280918] svc: failed to register lockdv1 RPC service (errno 97). [ 6331.333864] CacheFiles: File cache on dm-4 unregistering [ 6331.333874] FS-Cache: Withdrawing cache "mycache" [ 6372.509295] FS-Cache: Cache "mycache" added (type cachefiles) [ 6372.509309] CacheFiles: File cache on dm-4 registered [25705.831245] microcode: CPU0 sig=0x206a7, pf=0x2, revision=0x28 [25705.837374] microcode: CPU1 sig=0x206a7, pf=0x2, revision=0x28 [25705.846573] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x28 [25705.850574] microcode: CPU3 sig=0x206a7, pf=0x2, revision=0x28 [25705.862613] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba [25705.932665] microcode: Microcode Update Driver: v2.00 removed. ** Model information sys_vendor: Hewlett-Packard product_name: HP Compaq 8200 Elite CMT PCproduct_version: chassis_vendor: Hewlett-Packard chassis_version: bios_vendor: Hewlett-Packard
bios_version: J01 v02.06 board_vendor: Hewlett-Packard board_name: 1494board_version:
** Loaded modules: acpi_cpufreq mperf cpufreq_userspace cpufreq_powersave cpufreq_conservative cpufreq_stats autofs4 kvm_intel cachefiles binfmt_misc kvm nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc netconsole configfs ext3 jbd coretemp ipmi_watchdog ipmi_devintf ipmi_si ipmi_msghandler fuse uhci_hcd ohci_hcd snd_hda_codec_realtek tpm_infineon snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event nvidia(P) snd_seq snd_timer snd_seq_device tpm_tis snd soundcore snd_page_alloc hp_wmi sparse_keymap rfkill tpm i2c_i801 i2c_core tpm_bios processor wmi button thermal_sys evdev joydev psmouse serio_raw ext4 mbcache jbd2 crc16 dm_mod raid10 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid1 raid0 multipath linear md_mod hid_microsoft usbhid hid sg sr_mod sd_mod cdrom crc_t10dif ahci libahci ehci_hcd libata scsi_mod usbcore e1000e usb_common ** PCI devices: 00:00.0 Host bridge [0600]: Intel Corporation Sandy Bridge DRAM Controller [8086:0100] (rev 09) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> 00:01.0 PCI bridge [0604]: Intel Corporation Sandy Bridge PCI Express Root Port [8086:0101] (rev 09) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 0000e000-0000efff Memory behind bridge: f6000000-f9ffffff Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport 00:16.0 Communication controller [0780]: Intel Corporation Cougar Point HECI Controller #1 [8086:1c3a] (rev 04) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 11 Region 0: Memory at fa02a000 (64-bit, non-prefetchable) [size=16] Capabilities: <access denied> 00:16.3 Serial controller [0700]: Intel Corporation Cougar Point KT Controller [8086:1c3d] (rev 04) (prog-if 02 [16550]) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 17 Region 0: I/O ports at f0a0 [size=8] Region 1: Memory at fa029000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: serial 00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 46 Region 0: Memory at fa000000 (32-bit, non-prefetchable) [size=128K] Region 1: Memory at fa028000 (32-bit, non-prefetchable) [size=4K] Region 2: I/O ports at f040 [size=32] Capabilities: <access denied> Kernel driver in use: e1000e 00:1a.0 USB Controller [0c03]: Intel Corporation Cougar Point USB Enhanced Host Controller #2 [8086:1c2d] (rev 04) (prog-if 20 [EHCI]) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 16 Region 0: Memory at fa027000 (32-bit, non-prefetchable) [size=1K] Capabilities: <access denied> Kernel driver in use: ehci_hcd 00:1b.0 Audio device [0403]: Intel Corporation Cougar Point High Definition Audio Controller [8086:1c20] (rev 04) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 48 Region 0: Memory at fa020000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel 00:1c.0 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root Port 1 [8086:1c10] (rev b4) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport 00:1c.4 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root Port 5 [8086:1c18] (rev b4) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport 00:1c.6 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root Port 7 [8086:1c1c] (rev b4) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=04, subordinate=04, sec-latency=0 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport 00:1c.7 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root Port 8 [8086:1c1e] (rev b4) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=05, subordinate=05, sec-latency=0 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport 00:1d.0 USB Controller [0c03]: Intel Corporation Cougar Point USB Enhanced Host Controller #1 [8086:1c26] (rev 04) (prog-if 20 [EHCI]) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 23 Region 0: Memory at fa026000 (32-bit, non-prefetchable) [size=1K] Capabilities: <access denied> Kernel driver in use: ehci_hcd 00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev a4) (prog-if 01 [Subtractive decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Bus: primary=00, secondary=06, subordinate=06, sec-latency=32 Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> 00:1f.0 ISA bridge [0601]: Intel Corporation Cougar Point LPC Controller [8086:1c4e] (rev 04) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> 00:1f.2 SATA controller [0106]: Intel Corporation Cougar Point 6 port SATA AHCI Controller [8086:1c02] (rev 04) (prog-if 01 [AHCI 1.0]) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 47 Region 0: I/O ports at f090 [size=8] Region 1: I/O ports at f080 [size=4] Region 2: I/O ports at f070 [size=8] Region 3: I/O ports at f060 [size=4] Region 4: I/O ports at f020 [size=32] Region 5: Memory at fa025000 (32-bit, non-prefetchable) [size=2K] Capabilities: <access denied> Kernel driver in use: ahci 00:1f.3 SMBus [0c05]: Intel Corporation Cougar Point SMBus Controller [8086:1c22] (rev 04) Subsystem: Hewlett-Packard Company Device [103c:1494] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin C routed to IRQ 18 Region 0: Memory at fa024000 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at f000 [size=32] Kernel driver in use: i801_smbus 01:00.0 VGA compatible controller [0300]: nVidia Corporation G96 [Quadro FX 580] [10de:0659] (rev a1) (prog-if 00 [VGA controller]) Subsystem: nVidia Corporation Device [10de:063a] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 16 Region 0: Memory at f8000000 (32-bit, non-prefetchable) [size=16M] Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M] Region 3: Memory at f6000000 (64-bit, non-prefetchable) [size=32M] Region 5: I/O ports at e000 [size=128] [virtual] Expansion ROM at f9000000 [disabled] [size=512K] Capabilities: <access denied> Kernel driver in use: nvidia ** USB devices: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 004: ID 045e:00db Microsoft Corp. Natural Ergonomic Keyboard 4000 V1.0 Bus 001 Device 003: ID 0409:005a NEC Corp. HighSpeed Hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub -- System Information: Debian Release: 6.0.5 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 3.2.0-0.bpo.2-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages linux-image-3.2.0-0.bpo.2-amd64 depends on: ii debconf [debconf-2.0] 1.5.36.1 Debian configuration management sy ii initramfs-tools [linux-init 0.99~bpo60+1 tools for generating an initramfs ii linux-base 3.4~bpo60+1 Linux image base package ii module-init-tools 3.12-2 tools for managing Linux kernel mo Versions of packages linux-image-3.2.0-0.bpo.2-amd64 recommends: ii firmware-linux-free 2.6.32-45 Binary firmware for various driver Versions of packages linux-image-3.2.0-0.bpo.2-amd64 suggests:ii grub-pc 1.98+20100804-14+squeeze1 GRand Unified Bootloader, version ii linux-doc-3.2 3.2.20-1~bpo60+1 Linux kernel specific documentatio
Versions of packages linux-image-3.2.0-0.bpo.2-amd64 is related to: pn firmware-atheros <none> (no description available) ii firmware-bnx2 0.35~bpo60+1 Binary firmware for Broadcom NetXt pn firmware-bnx2x <none> (no description available) pn firmware-brcm80211 <none> (no description available) pn firmware-intelwimax <none> (no description available) pn firmware-ipw2x00 <none> (no description available) pn firmware-ivtv <none> (no description available) pn firmware-iwlwifi <none> (no description available) pn firmware-libertas <none> (no description available) pn firmware-linux <none> (no description available) ii firmware-linux-nonfree 0.35~bpo60+1 Binary firmware for various driver pn firmware-myricom <none> (no description available) pn firmware-netxen <none> (no description available) pn firmware-qlogic <none> (no description available) pn firmware-ralink <none> (no description available) pn firmware-realtek <none> (no description available) pn xen-hypervisor <none> (no description available) -- debconf information excluded ii cachefilesd 0.10.4 support fscache on already mounted filesystemJul 17 21:04:00 kefka [187206.183242] BUG: unable to handle kernel Jul 17 21:04:00 kefka NULL pointer dereference
Jul 17 21:04:00 kefka at 0000000000000040 Jul 17 21:04:00 kefka [187206.183263] IP: Jul 17 21:04:00 kefka [<ffffffffa0fd95f7>] __fscache_read_or_alloc_pages+0x194/0x262 [fscache]Jul 17 21:04:00 kefka [187206.183273] PGD 223341067 Jul 17 21:04:00 kefka PUD 222926067 Jul 17 21:04:00 kefka PMD 0 Jul 17 21:04:00 kefka Jul 17 21:04:00 kefka [187206.183281] Oops: 0000 [#1] Jul 17 21:04:00 kefka SMP Jul 17 21:04:00 kefka Jul 17 21:04:00 kefka [187206.183287] CPU 3 Jul 17 21:04:00 kefka Jul 17 21:04:00 kefka [187206.183289] Modules linked in:
Jul 17 21:04:00 kefka acpi_cpufreq Jul 17 21:04:00 kefka mperf Jul 17 21:04:00 kefka cpufreq_userspace Jul 17 21:04:00 kefka cpufreq_powersave Jul 17 21:04:00 kefka cpufreq_conservative Jul 17 21:04:00 kefka cpufreq_stats Jul 17 21:04:00 kefka autofs4 Jul 17 21:04:00 kefka kvm_intel Jul 17 21:04:00 kefka kvm Jul 17 21:04:00 kefka cachefiles Jul 17 21:04:00 kefka binfmt_misc Jul 17 21:04:00 kefka nfsd Jul 17 21:04:00 kefka nfs Jul 17 21:04:00 kefka lockd Jul 17 21:04:00 kefka fscache Jul 17 21:04:00 kefka auth_rpcgss Jul 17 21:04:00 kefka nfs_acl Jul 17 21:04:00 kefka sunrpc Jul 17 21:04:00 kefka netconsole Jul 17 21:04:00 kefka configfs Jul 17 21:04:00 kefka ext3 Jul 17 21:04:00 kefka jbd Jul 17 21:04:00 kefka coretemp Jul 17 21:04:00 kefka ipmi_watchdog Jul 17 21:04:00 kefka ipmi_devintf Jul 17 21:04:00 kefka ipmi_si Jul 17 21:04:00 kefka ipmi_msghandler Jul 17 21:04:00 kefka fuse Jul 17 21:04:00 kefka uhci_hcd Jul 17 21:04:00 kefka ohci_hcd Jul 17 21:04:00 kefka snd_hda_codec_realtek Jul 17 21:04:00 kefka nvidia(P) Jul 17 21:04:00 kefka snd_hda_intel Jul 17 21:04:00 kefka tpm_infineon Jul 17 21:04:00 kefka snd_hda_codec Jul 17 21:04:00 kefka snd_hwdep Jul 17 21:04:00 kefka snd_pcm_oss Jul 17 21:04:00 kefka snd_mixer_oss Jul 17 21:04:00 kefka snd_pcm Jul 17 21:04:00 kefka snd_seq_midi Jul 17 21:04:00 kefka snd_rawmidi Jul 17 21:04:00 kefka snd_seq_midi_event Jul 17 21:04:00 kefka snd_seq Jul 17 21:04:00 kefka hp_wmi Jul 17 21:04:00 kefka sparse_keymap Jul 17 21:04:00 kefka tpm_tis Jul 17 21:04:00 kefka tpm Jul 17 21:04:00 kefka snd_timer Jul 17 21:04:00 kefka snd_seq_device Jul 17 21:04:00 kefka rfkill Jul 17 21:04:00 kefka tpm_bios Jul 17 21:04:00 kefka processor Jul 17 21:04:00 kefka snd Jul 17 21:04:00 kefka psmouse Jul 17 21:04:00 kefka thermal_sys Jul 17 21:04:00 kefka soundcore Jul 17 21:04:00 kefka wmi Jul 17 21:04:00 kefka button Jul 17 21:04:00 kefka snd_page_alloc Jul 17 21:04:00 kefka i2c_i801 Jul 17 21:04:00 kefka i2c_core Jul 17 21:04:00 kefka evdev Jul 17 21:04:00 kefka joydev Jul 17 21:04:00 kefka serio_raw Jul 17 21:04:00 kefka ext4 Jul 17 21:04:00 kefka mbcache Jul 17 21:04:00 kefka jbd2 Jul 17 21:04:00 kefka crc16 Jul 17 21:04:00 kefka dm_mod Jul 17 21:04:00 kefka raid10 Jul 17 21:04:00 kefka raid456 Jul 17 21:04:00 kefka async_raid6_recov Jul 17 21:04:00 kefka async_pq Jul 17 21:04:00 kefka raid6_pq Jul 17 21:04:00 kefka async_xor Jul 17 21:04:00 kefka xor Jul 17 21:04:00 kefka async_memcpy Jul 17 21:04:00 kefka async_tx Jul 17 21:04:00 kefka raid1 Jul 17 21:04:00 kefka raid0 Jul 17 21:04:00 kefka multipath Jul 17 21:04:00 kefka linear Jul 17 21:04:00 kefka md_mod Jul 17 21:04:00 kefka hid_microsoft Jul 17 21:04:00 kefka usbhid Jul 17 21:04:00 kefka hid Jul 17 21:04:00 kefka sg Jul 17 21:04:00 kefka sd_mod Jul 17 21:04:00 kefka sr_mod Jul 17 21:04:00 kefka crc_t10dif Jul 17 21:04:00 kefka cdrom Jul 17 21:04:00 kefka ahci Jul 17 21:04:00 kefka libahci Jul 17 21:04:00 kefka libata Jul 17 21:04:00 kefka scsi_mod Jul 17 21:04:00 kefka ehci_hcd Jul 17 21:04:00 kefka usbcore Jul 17 21:04:00 kefka usb_common Jul 17 21:04:00 kefka e1000e Jul 17 21:04:00 kefka [last unloaded: microcode]Jul 17 21:04:00 kefka Jul 17 21:04:00 kefka [187206.183484] Jul 17 21:04:00 kefka [187206.183487] Pid: 20810, comm: MATLAB Tainted: P O 3.2.0-0.bpo.2-amd64 #1
Jul 17 21:04:00 kefka Hewlett-Packard HP Compaq 8200 Elite CMT PC Jul 17 21:04:00 kefka /1494Jul 17 21:04:00 kefka Jul 17 21:04:00 kefka [187206.183495] RIP: 0010:[<ffffffffa0fd95f7>] Jul 17 21:04:00 kefka [<ffffffffa0fd95f7>] __fscache_read_or_alloc_pages+0x194/0x262 [fscache]
Jul 17 21:04:00 kefka [187206.183501] RSP: 0018:ffff8802121ffaa8 EFLAGS: 00010246 Jul 17 21:04:00 kefka [187206.183503] RAX: 0000000000000000 RBX: ffff880214af9618 RCX: ffff8802121ffa38 Jul 17 21:04:00 kefka [187206.183506] RDX: 0000000000000000 RSI: ffff8802121ffa28 RDI: ffff88022dfb29d8 Jul 17 21:04:00 kefka [187206.183509] RBP: ffff8802121ffb64 R08: ffff8802121fe000 R09: ffff880200000001 Jul 17 21:04:00 kefka [187206.183512] R10: ffff880223328280 R11: 00000000ffffffff R12: ffff8802121ffc68 Jul 17 21:04:00 kefka [187206.183515] R13: ffff880223402b40 R14: ffff88022338e0c0 R15: 00000000000200da Jul 17 21:04:00 kefka [187206.183518] FS: 00002aff7a8e9700(0000) GS:ffff88022dd80000(0000) knlGS:0000000000000000 Jul 17 21:04:00 kefka [187206.183521] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 17 21:04:00 kefka [187206.183523] CR2: 0000000000000040 CR3: 0000000223d48000 CR4: 00000000000406e0 Jul 17 21:04:00 kefka [187206.183526] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 17 21:04:00 kefka [187206.183528] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jul 17 21:04:00 kefka [187206.183531] Process MATLAB (pid: 20810, threadinfo ffff8802121fe000, task ffff8802214d8300) Jul 17 21:04:00 kefka [187206.183535] Stack: Jul 17 21:04:00 kefka [187206.183537] ffff880222c2bbc0 Jul 17 21:04:00 kefka ffffffffa103297f Jul 17 21:04:00 kefka 0000000000000000 Jul 17 21:04:00 kefka ffff88017992e9d0Jul 17 21:04:00 kefka Jul 17 21:04:00 kefka [187206.183547] ffff8802121ffb64
Jul 17 21:04:00 kefka ffff8802121ffc68 Jul 17 21:04:00 kefka 0000000000000010 Jul 17 21:04:00 kefka ffff88017992eb10Jul 17 21:04:00 kefka Jul 17 21:04:00 kefka [187206.183557] 00000000ffffff97
Jul 17 21:04:00 kefka ffffffffa10328b4 Jul 17 21:04:00 kefka 00000000000200da Jul 17 21:04:00 kefka ffffffff8100d722Jul 17 21:04:00 kefka Jul 17 21:04:00 kefka [187206.183566] Call Trace:
Jul 17 21:04:00 kefka [187206.183575] [<ffffffffa103297f>] ? __nfs_readpages_from_fscache+0x146/0x146 [nfs] Jul 17 21:04:00 kefka [187206.183584] [<ffffffffa10328b4>] ? __nfs_readpages_from_fscache+0x7b/0x146 [nfs] Jul 17 21:04:00 kefka [187206.183591] [<ffffffff8100d722>] ? __switch_to+0x23b/0x2b1 Jul 17 21:04:00 kefka [187206.183597] [<ffffffff81044620>] ? update_curr+0xbc/0x160 Jul 17 21:04:00 kefka [187206.183604] [<ffffffffa1011cb3>] ? nfs_readpages+0xe1/0x157 [nfs] Jul 17 21:04:00 kefka [187206.183610] [<ffffffff810c5b12>] ? __do_page_cache_readahead+0x124/0x1ca Jul 17 21:04:00 kefka [187206.183614] [<ffffffff810c5bd4>] ? ra_submit+0x1c/0x20 Jul 17 21:04:00 kefka [187206.183618] [<ffffffff810bdfc2>] ? generic_file_aio_read+0x299/0x5d0 Jul 17 21:04:00 kefka [187206.183622] [<ffffffff8103dc5b>] ? __wake_up+0x35/0x46 Jul 17 21:04:00 kefka [187206.183628] [<ffffffffa1007be6>] ? nfs_file_read+0x9d/0xbe [nfs] Jul 17 21:04:00 kefka [187206.183634] [<ffffffff81105c5e>] ? do_sync_read+0xb1/0xea Jul 17 21:04:00 kefka [187206.183637] [<ffffffff810dfb1f>] ? vma_merge+0x219/0x387 Jul 17 21:04:00 kefka [187206.183641] [<ffffffff810de573>] ? get_unmapped_area+0xdc/0x13c Jul 17 21:04:00 kefka [187206.183644] [<ffffffff811066b1>] ? vfs_read+0xa1/0xfb Jul 17 21:04:00 kefka [187206.183647] [<ffffffff810e0bbe>] ? sys_mmap_pgoff+0x127/0x15a Jul 17 21:04:00 kefka [187206.183650] [<ffffffff811067c1>] ? sys_read+0x45/0x6e Jul 17 21:04:00 kefka [187206.183655] [<ffffffff8136a912>] ? system_call_fastpath+0x16/0x1bJul 17 21:04:00 kefka [187206.183657] Code: Jul 17 21:04:00 kefka 85 Jul 17 21:04:00 kefka c0 Jul 17 21:04:00 kefka 74 Jul 17 21:04:00 kefka 06 Jul 17 21:04:00 kefka 48 Jul 17 21:04:00 kefka 8b Jul 17 21:04:00 kefka 7a Jul 17 21:13:55 kefka [187801.383425] ACPI MEMORY or I/O RESET_REG.
############################################################################### # # Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. # Written by David Howells (dhowells@redhat.com) # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version # 2 of the License, or (at your option) any later version. # ############################################################################### dir /var/cache/fscache tag mycache brun 20% bcull 15% bstop 10% frun 20% fcull 15% fstop 10% culltable 16
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