I experience the same issues since Ubuntu 12.04:
[255028.416026] BUG: unable to handle kernel NULL pointer dereference at
(null)
[255028.416034] IP: [< (null)>] (null)
[255028.416038] PGD 22f97a067 PUD 228e26067 PMD 0
[255028.416043] Oops: 0010 [#3] SMP
[255028.416046] CPU 1
[255028.416048] Modules linked in: des_generic md4 nls_utf8 cifs pci_stub
vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) autofs4 bnep rfcomm bluetooth
vesafb nfsd nfs lockd fscache binfmt_misc auth_rpcgss nfs_acl nvidia(P) sunrpc
snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi
coretemp snd_rawmidi snd_seq_midi_event rds_rdma snd_seq rdma_cm ib_cm iw_cm
snd_timer ib_sa snd_seq_device i5400_edac ib_mad ib_core ib_addr rds snd
psmouse edac_core sctp ppdev i5k_amb mac_hid soundcore dcdbas serio_raw
snd_page_alloc shpchp libcrc32c parport_pc lp parport usbhid hid uas
usb_storage firewire_ohci firewire_core crc_itu_t mptsas mptscsih mptbase tg3
scsi_transport_sas
[255028.416119]
[255028.416121] Pid: 3210, comm: mount.cifs Tainted: P D O
3.2.0-34-generic #53-Ubuntu Dell Inc. Precision WorkStation T7400 /0RW199
[255028.416126] RIP: 0010:[<0000000000000000>] [< (null)>]
(null)
[255028.416128] RSP: 0018:ffff88022918fc60 EFLAGS: 00010286
[255028.416130] RAX: ffffffffa064d6c0 RBX: ffff8801d1e2b9c0 RCX:
0000000000000000
[255028.416132] RDX: 0000000000000000 RSI: ffff8801d1e2b9c0 RDI:
ffff880114445030
[255028.416134] RBP: ffff88022918fc98 R08: ffff88023fc56e90 R09:
ffffc90000002000
[255028.416136] R10: ffff8802317bbbe0 R11: ffffc90000002000 R12:
ffff880114445030
[255028.416138] R13: 0000000000000000 R14: 0000000000000000 R15:
ffff8801144450d0
[255028.416140] FS: 00007f51347e2700(0000) GS:ffff88023fc40000(0000)
knlGS:0000000000000000
[255028.416142] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[255028.416144] CR2: 0000000000000000 CR3: 0000000225add000 CR4:
00000000000006e0
[255028.416146] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[255028.416148] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[255028.416150] Process mount.cifs (pid: 3210, threadinfo ffff88022918e000,
task ffff880225c81700)
[255028.416152] Stack:
[255028.416153] ffffffff81182f85 ffff88022918fc98 ffffffff811906f5
0000000000000020
[255028.416157] 0000000000000000 ffff8801d1e2bb40 ffff88022918fcf8
ffff88022918fcd8
[255028.416161] ffffffff81183adf ffff88022918fcd8 ffffffff81183d0a
ffff8801d1e2bb40
[255028.416165] Call Trace:
[255028.416172] [<ffffffff81182f85>] ? d_alloc_and_lookup+0x45/0x90
[255028.416176] [<ffffffff811906f5>] ? d_lookup+0x35/0x60
[255028.416179] [<ffffffff81183adf>] __lookup_hash.part.28+0xbf/0xe0
[255028.416182] [<ffffffff81183d0a>] ? inode_permission+0x4a/0x110
[255028.416184] [<ffffffff81183fde>] lookup_one_len+0xee/0x120
[255028.416192] [<ffffffffa0621851>] cifs_get_root+0x111/0x190 [cifs]
[255028.416196] [<ffffffffa0621a6c>] cifs_do_mount+0x19c/0x280 [cifs]
[255028.416200] [<ffffffff8117bd43>] mount_fs+0x43/0x1b0
[255028.416203] [<ffffffff8119662a>] vfs_kern_mount+0x6a/0xc0
[255028.416206] [<ffffffff81197b34>] do_kern_mount+0x54/0x110
[255028.416209] [<ffffffff81199694>] do_mount+0x1a4/0x260
[255028.416212] [<ffffffff81199b70>] sys_mount+0x90/0xe0
[255028.416216] [<ffffffff816643c2>] system_call_fastpath+0x16/0x1b
[255028.416218] Code: Bad RIP value.
[255028.416222] RIP [< (null)>] (null)
[255028.416224] RSP <ffff88022918fc60>
[255028.416225] CR2: 0000000000000000
[255028.416228] ---[ end trace c0cf2d4ec9477b4e ]---
I haven't used any prior versions of ubuntu in this context. Do you need
further information?
** Changed in: linux (Ubuntu)
Status: Expired => Confirmed
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https://bugs.launchpad.net/bugs/1018852
Title:
cifs causes kernel oops on mount
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