On Mon, Jun 16, 2014 at 9:49 PM, <sf...@users.sourceforge.net> wrote: > > Guan, Nikolay, > Please test this patch which tries fixing the problem while previous > patches try finding it. > > J. R. Okajima
Two problems: 1) "fs/proc/task_mmu.c" (3.12.x) must additionally include <linux/magic.h> and <linux/shm.h> otherwise doesn't compile; 2) The warning disappeared with this patch, but the kernel oops after playing around for a few seconds. [ 87.591524] BUG: unable to handle kernel NULL pointer dereference at 00000008 [ 87.591597] IP: [<c11aa0b4>] ipc_shm_id_or_ino+0x24/0x40 [ 87.591649] *pdpt = 000000002d208001 *pde = 0000000000000000 [ 87.591699] Oops: 0000 [#1] SMP [ 87.591734] Modules linked in: pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) msr cpufreq_stats snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss rfcomm bnep xt_multiport ip6t_REJECT ip6table_filter ip6_tables ipv6 ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables tp_smapi(O) thinkpad_ec(O) comedi_parport(C) comedi(C) pcmcia pcmcia_core cpufreq_ondemand speedstep_lib sierra usbserial bonding hid_generic usbhid hid btusb bluetooth fuse joydev coretemp i915 kvm_intel kvm psmouse drm_kms_helper serio_raw iwldvm drm mac80211 xhci_hcd e1000e snd_hda_codec_analog i2c_dev snd_hda_intel evdev iwlwifi thinkpad_acpi snd_hda_codec i2c_algo_bit snd_hwdep snd_pcm lpc_ich snd_page_alloc nvram ptp snd_timer uhci_hcd cfg80211 ehci_pci snd pps_core i2c_i801 phc_intel(O) intel_agp i2c_core intel_gtt ehci_hcd agpgart tpm_tis microcode tpm tpm_bios thermal processor video ac battery soundcore rfkill thermal_sys freq_table hwmon button nilfs2 loop squashfs aufs ext4 mbcache jbd2 [ 87.592854] CPU: 1 PID: 1479 Comm: kwin Tainted: G C O 3.12.22-test #2 [ 87.592914] Hardware name: LENOVO 1951Y2C/1951Y2C, BIOS 79ETE7WW (2.27 ) 03/21/2011 [ 87.592973] task: f5338000 ti: ed23e000 task.ti: ed23e000 [ 87.593016] EIP: 0060:[<c11aa0b4>] EFLAGS: 00010246 CPU: 1 [ 87.593065] EIP is at ipc_shm_id_or_ino+0x24/0x40 [ 87.593102] EAX: 00000000 EBX: db3b1478 ECX: 000000bf EDX: f1be3e2c [ 87.593151] ESI: ed4c6900 EDI: d7c30a80 EBP: ed23fe94 ESP: ed23fe94 [ 87.593199] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 87.593241] CR0: 80050033 CR2: 00000008 CR3: 2d2fe000 CR4: 000007f0 [ 87.593289] Stack: [ 87.593307] ed23ff14 c1189da7 d7c30a80 c1631514 ad601000 ad602000 00000072 00000077 [ 87.593335] 0000002d 00000070 00000000 00000000 00000000 00000000 00000000 ed23ff04 [ 87.593335] f5338000 00000001 f4831880 00000000 00000000 d7caa958 00000000 00000000 [ 87.593335] Call Trace: [ 87.593335] [<c1189da7>] show_map_vma+0x1f7/0x340 [ 87.593335] [<c118af51>] show_pid_map+0x21/0x60 [ 87.593335] [<c115a88c>] seq_read+0x22c/0x380 [ 87.593335] [<c115a660>] ? traverse+0x240/0x240 [ 87.593335] [<c113cc80>] vfs_read+0x80/0x150 [ 87.593335] [<c113d429>] SyS_read+0x49/0x90 [ 87.593335] [<c14b698f>] syscall_call+0x7/0xb [ 87.593335] [<c14b0000>] ? alloc_debug_processing+0x8a/0x10c [ 87.593335] Code: 8d bc 27 00 00 00 00 55 89 e5 53 66 66 66 66 90 8b 1d e0 39 82 c1 8b 50 10 39 5a 1c 8b 4a 28 74 06 5b 89 c8 5d c3 90 8b 40 78 5b <8b> 40 08 5d 8b 40 78 8b 48 08 89 c8 c3 eb 0d 90 90 90 90 90 90 [ 87.593335] EIP: [<c11aa0b4>] ipc_shm_id_or_ino+0x24/0x40 SS:ESP 0068:ed23fe94 [ 87.593335] CR2: 0000000000000008 [ 87.602917] ---[ end trace c7a0b18ea0c602b0 ]--- Guan ------------------------------------------------------------------------------ HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing & Easy Data Exploration http://p.sf.net/sfu/hpccsystems
