[Bug 50426] cifs ooops

[Alessandro Bono]

Public bug reported:

Binary package hint: linux-image-2.6.15-25-686

Hi

cifs ooops watching a movie from a  remote cifs share mounted from a samba server (another dapper machine)
connection to the samba server is on a wireless link with a ipw2200 (instable link at the  moment of ooops)

distribution is dapper and I have fglrx + vmware server + linuxant hsf
driver installed so kernel is tainted

Jun 19 21:57:31 prosecco kernel: [17186585.092000]  CIFS VFS: Invalid size SMB length 4 pdu_length 32837
Jun 19 21:57:31 prosecco kernel: [17186585.096000]  CIFS VFS: No response for cmd 50 mid 44785
Jun 19 22:00:39 prosecco kernel: [17186773.408000] Unable to handle kernel NULL pointer dereference at virtual address 00000000
Jun 19 22:00:39 prosecco kernel: [17186773.408000]  printing eip:
Jun 19 22:00:39 prosecco kernel: [17186773.408000] c0101525
Jun 19 22:00:39 prosecco kernel: [17186773.408000] *pde = 00000000
Jun 19 22:00:39 prosecco kernel: [17186773.408000] Oops: 0002 [#1]
Jun 19 22:00:39 prosecco kernel: [17186773.408000] PREEMPT SMP
Jun 19 22:00:39 prosecco kernel: [17186773.408000] Modules linked in: nls_cp437 nls_utf8 cifs appletalk ax25 ipx tsdev vmnet vmmon cpufreq_ondemand cp
ufreq_userspace cpufreq_powersave speedstep_centrino freq_table rfcomm hidp l2cap ipt_ULOG ip_tables ipv6 aes ieee80211_crypt_ccmp sonypi ppdev parpor
t_pc lp parport af_packet sony_acpi button ac battery md_mod fglrx sr_mod scsi_mod pcmcia ipw2200 e100 ieee80211 ieee80211_crypt mii ieee80211_1_1_13
ieee80211_1_1_13_crypt hci_usb yenta_socket rsrc_nonstatic pcmcia_core bluetooth snd_intel8x0 snd_ac97_codec snd_ac97_bus psmouse snd_pcm_oss serio_ra
w hsfmc97ich hsfserial hsfengine hsfosspec hsfsoar snd_mixer_oss snd_pcm snd_timer snd pcspkr soundcore snd_page_alloc intel_agp agpgart shpchp pci_ho
tplug evdev ext3 jbd dm_mod ide_generic ohci_hcd ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore ide_cd cdrom ide_disk piix generic thermal processor fan
fbcon tileblit font bitblit softcursor capability commoncap
Jun 19 22:00:39 prosecco kernel: [17186773.408000] CPU:    0
Jun 19 22:00:39 prosecco kernel: [17186773.408000] EIP:    0060:[kernel_thread_helper+5/16]    Tainted: P      VLI
Jun 19 22:00:39 prosecco kernel: [17186773.408000] EFLAGS: 00010286   (2.6.15-25-686)
Jun 19 22:00:39 prosecco kernel: [17186773.408000] EIP is at kernel_thread_helper+0x5/0x10
Jun 19 22:00:39 prosecco kernel: [17186773.408000] eax: 00000000   ebx: c013c310   ecx: 001a535a   edx: 00000000
Jun 19 22:00:39 prosecco kernel: [17186773.408000] esi: 00000000   edi: 00000000   ebp: 00000000   esp: dfe15fec
Jun 19 22:00:39 prosecco kernel: [17186773.408000] ds: 007b   es: 007b   ss: 0068
Jun 19 22:00:39 prosecco kernel: [17186773.408000] Process pdflush (pid: 137, threadinfo=dfe14000 task=dff62560)
Jun 19 22:00:39 prosecco kernel: [17186773.408000] Stack: df901f2c 00000000 00000000 cccccccc cccccccc
Jun 19 22:00:39 prosecco kernel: [17186773.408000] Call Trace:
Jun 19 22:00:39 prosecco kernel: [17186773.408000] Code: 14 5b 5e 5f 5d c3 8b 43 34 89 44 24 08 0f b7 43 38 c7 04 24 be cd 31 c0 89 44 24 04 e8 a5 39
02 00 e9 00 ff ff ff 89 d0 52 ff d3 <00> 00 00 86 ff 53 4d 42 32 00 00 57 31 c0 83 ec 54 b9 0f 00 00

** Affects: linux-source-2.6.15 (Ubuntu)
     Importance: Untriaged
         Status: Unconfirmed

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cifs ooops
https://launchpad.net/bugs/50426