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Bug#646866: linux-image-2.6.32-5-686: NULL dereference (BUG) after 'find /sys'



Dnia Fri, 28 Oct 2011 00:33:58 +0200
Bastian Blank <waldi@debian.org> napisał(a):

> On Thu, Oct 27, 2011 at 11:24:01PM +0100, Ben Hutchings wrote:
> > On Fri, 2011-10-28 at 00:09 +0200, Bastian Blank wrote:
> > > On Thu, Oct 27, 2011 at 11:15:00PM +0200, bla wrote:
> > > > [126931.063708] Pid: 1952, comm: find Tainted: G         C
> > > > (2.6.32-5-686 #1) Latitude E4300                  
> > > This is not the first oops. Find the first one in the log.
> > What are you talking about?  'GC' means there's a module from
> > staging, no proprietary modules, and no prior oopses.
> 
> Ups. C, not D.
> 
> Bastin
> 

I did some kern.* grepping and found one older, similar:

Oct 21 00:34:46 Opos kernel: [1370722.378351] BUG: unable to handle kernel NULL pointer dereference at (null)
Oct 21 00:34:46 Opos kernel: [1370722.378355] IP: [<c113b4d1>] strcmp+0x6/0x19
Oct 21 00:34:46 Opos kernel: [1370722.378361] *pde = 00000000
Oct 21 00:34:46 Opos kernel: [1370722.378364] Oops: 0000 [#1] SMP
Oct 21 00:34:46 Opos kernel: [1370722.378366] last sysfs file: /sys/module/ext4/initstate
Oct 21 00:34:46 Opos kernel: [1370722.378369] Modules linked in: reiserfs(+) isofs usb_storage ext4 jbd2 serpent xts gf128mul nls_utf8 nls_cp437 vfat fat mmc_block aufs(C) tun hidp ip6table_filter ip6_tables ebtable_nat ebtables acpi_cpufreq cpufreq_stats cpufreq_powersave cpufreq_conservative cpufreq_userspace parport_pc ppdev lp parport sco bridge stp bnep rfcomm l2cap crc16 autofs4 vboxnetadp vboxnetflt vboxdrv binfmt_misc uinput fuse ipt_MASQUERADE iptable_nat nf_nat ipt_LOG xt_pkttype xt_limit xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT iptable_filter ip_tables x_tables ext2 loop firewire_sbp2 btusb bluetooth snd_hda_codec_intelhdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec arc4 joydev ecb snd_hwdep iwlagn snd_pcm_oss uvcvideo iwlcore snd_mixer_oss videodev v4l1_compat snd_pcm i915 snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq drm_kms_helper mac80211 snd_timer snd_seq_device drm psmouse snd dell_laptop cfg80211 i2c_i801 pcspkr dcdbas evdev serio_raw i2c_algo_bit v
Oct 21 00:34:46 Opos kernel: ideo wmi ac soundcore battery button i2c_core rfkill snd_page_alloc output processor ext3 jbd mbcache sha256_generic aes_i586 aes_generic cbc dm_crypt dm_mod raid10 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid1 raid0 multipath linear md_mod sg usbhid hid sd_mod crc_t10dif sr_mod cdrom uhci_hcd firewire_ohci sdhci_pci ahci sdhci libata ricoh_mmc mmc_core led_class firewire_core thermal crc_itu_t thermal_sys scsi_mod ehci_hcd e1000e usbcore nls_base [last unloaded: scsi_wait_scan]
Oct 21 00:34:46 Opos kernel: [1370722.378474]
Oct 21 00:34:46 Opos kernel: [1370722.378477] Pid: 19891, comm: modprobe Tainted: G         C (2.6.32-5-686 #1) Latitude E4300
Oct 21 00:34:46 Opos kernel: [1370722.378480] EIP: 0060:[<c113b4d1>] EFLAGS: 00210286 CPU: 1
Oct 21 00:34:46 Opos kernel: [1370722.378482] EIP is at strcmp+0x6/0x19
Oct 21 00:34:46 Opos kernel: [1370722.378484] EAX: 00000000 EBX: f6dce030 ECX: f6c8fe10 EDX: f8694ec9
Oct 21 00:34:46 Opos kernel: [1370722.378486] ESI: 00000000 EDI: f8694ec9 EBP: 000001bc ESP: eea07f0c
Oct 21 00:34:46 Opos kernel: [1370722.378489]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Oct 21 00:34:46 Opos kernel: [1370722.378491] Process modprobe (pid: 19891, ti=eea06000 task=eaca3740 task.ti=eea06000)
Oct 21 00:34:46 Opos kernel: [1370722.378493] Stack:
Oct 21 00:34:46 Opos kernel: [1370722.378494]  f8694ec9 ee6910c0 c10f37c2 f6c8fe10 f8694ec9 c10f26b8 f6c8fe10 00000000
Oct 21 00:34:46 Opos kernel: [1370722.378499] <0> 00000000 00000000 ee6910c0 00000000 ee6910c0 c10af366 000001bc ee6910c0
Oct 21 00:34:46 Opos kernel: [1370722.378504] <0> ee6910c0 00000000 000001bc c10af75e f8694ec9 f869848c 00000001 c1391908
Oct 21 00:34:46 Opos kernel: [1370722.378510] Call Trace:
Oct 21 00:34:46 Opos kernel: [1370722.378515]  [<c10f37c2>] ? sysfs_find_dirent+0x13/0x23
Oct 21 00:34:46 Opos kernel: [1370722.378518]  [<c10f26b8>] ? sysfs_hash_and_remove+0x20/0x48
Oct 21 00:34:46 Opos kernel: [1370722.378522]  [<c10af366>] ? sysfs_slab_add+0x45/0x15e
Oct 21 00:34:46 Opos kernel: [1370722.378526]  [<c10af75e>] ? kmem_cache_create+0x22f/0x2ad
Oct 21 00:34:46 Opos kernel: [1370722.378536]  [<f86a0000>] ? init_reiserfs_fs+0x0/0x71 [reiserfs]
Oct 21 00:34:46 Opos kernel: [1370722.378546]  [<f86a001c>] ? init_reiserfs_fs+0x1c/0x71 [reiserfs]
Oct 21 00:34:46 Opos kernel: [1370722.378557]  [<f86821b2>] ? init_once+0x0/0x11 [reiserfs]
Oct 21 00:34:46 Opos kernel: [1370722.378561]  [<c100113e>] ? do_one_initcall+0x55/0x155
Oct 21 00:34:46 Opos kernel: [1370722.378564]  [<c105787d>] ? sys_init_module+0xa7/0x1d7
Oct 21 00:34:46 Opos kernel: [1370722.378568]  [<c10030fb>] ? sysenter_do_call+0x12/0x28
Oct 21 00:34:46 Opos kernel: [1370722.378570] Code: ec 04 31 db 89 0c 24 89 d8 89 d1 f2 ae 4f 8b 0c 24 49 78 06 ac aa 84 c0 75 f7 31 c0 aa 5b 89 e8 5b 5e 5f 5d c3 57 89 d7 56 89 c6 <ac> ae 75 08 84 c0 75 f8 31 c0 eb 04 19 c0 0c 01 5e 5f c3 57 89
Oct 21 00:34:46 Opos kernel: [1370722.378597] EIP: [<c113b4d1>] strcmp+0x6/0x19 SS:ESP 0068:eea07f0c
Oct 21 00:34:46 Opos kernel: [1370722.378601] CR2: 0000000000000000
Oct 21 00:34:46 Opos kernel: [1370722.378604] ---[ end trace 673792742e972db2 ]---


Hope it will be useful.

-- 
Tomasz bla Fortuna
jid: bla(at)af.gliwice.pl
pgp: 0x90746E79 @ pgp.mit.edu
www: http://bla.thera.be

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