[Bug 7209] New: affs: Oops on accessing any loop-mounted image

[bugzilla-daemon at bugzilla.ubuntu.com]

Please do not reply to this email.  You can add comments at
http://bugzilla.ubuntu.com/show_bug.cgi?id=7209
Ubuntu | linux

           Summary: affs: Oops on accessing any loop-mounted image
           Product: Ubuntu
           Version: unspecified
          Platform: All
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: linux
        AssignedTo: fabbione at ubuntu.com
        ReportedBy: alankila at bel.fi
         QAContact: kernel-team at lists.ubuntu.com


This oops is 100% reproducible and seems to happen with any ADF file at all on
2.6.10-4-k7. I tested this on 2.6.8-1-k7 (Debian Sarge) and the file worked... I
would *guess* this bug is not Ubuntu specific. I'll try narrow this one down a
bit with some testing using 2.6.11 and 2.6.9.

Unable to handle kernel NULL pointer dereference at virtual address 00000124
 printing eip:
f92ca4c6
*pde = 00000000
Oops: 0002 [#1]
PREEMPT
Modules linked in: affs loop proc_intf freq_table cpufreq_userspace
cpufreq_powersave cpufreq_ondemand video sony_acpi pcc_acpi container button
battery ac ipv6 ipt_TOS ipt_REJECT ipt_pkttype ipt_LOG ipt_state ipt_multiport
ipt_conntrack iptable_mangle ip_nat_irc ip_nat_tftp ip_nat_ftp iptable_nat
ip_conntrack_irc ip_conntrack_tftp ip_conntrack_ftp ip_conntrack iptable_filter
ip_tables af_packet snd_bt87x tuner tvaudio msp3400 bttv video_buf
firmware_class i2c_algo_bit v4l2_common btcx_risc videodev emu10k1_gp shpchp
pci_hotplug usbhid snd_intel8x0 forcedeth ehci_hcd ohci_hcd usbcore nvidia_agp
agpgart analog gameport floppy pcspkrrtc jfs capability commoncap w83l785ts
i2c_sensor i2c_nforce2 i2c_core nvidia snd_emu10k1 snd_rawmidi snd_seq_device
snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc
snd_util_mem snd_hwdep snd soundcore evdev parport_pc lp parport tsdev ide_cd
cdrom mousedev psmouse xfs isofs vfat fat ext2 ext3 jbd mbcache raid1 md dm_mod
ide_generic ide_disk amd74xx ide_core unix thermalprocessor fan fbcon crc32 font
bitblit vesafb cfbcopyarea cfbimgblt cfbfillrect
CPU:    0
EIP:    0060:[<f92ca4c6>]    Tainted: P      VLI
EFLAGS: 00210216   (2.6.10-4-k7)
EIP is at affs_readpage_ofs+0x5f/0xaa [affs]
eax: 00000000   ebx: 00000edc   ecx: 000003b7   edx: 00000124
esi: 00000000   edi: 00000124   ebp: c19c0400   esp: eb5e3d0c
ds: 007b   es: 007b   ss: 0068
Process cp (pid: 11456, threadinfo=eb5e2000 task=ebed40e0)
Stack: c19c0400 c0135c73 f01fb8d8 00000001 00000124 c19c0418 c19c0400 00000001
       f01fb8d4 c013d0bf f70e9240 c19c0400 00000001 000000d0 00000000 00000001
       00000000 c19c09e0 c013a679 c02d1690 c02d1520 000001d2 f8ba4aec 00000002
Call Trace:
 [<c0135c73>] add_to_page_cache+0x69/0xaf
 [<c013d0bf>] read_pages+0xe7/0x130
 [<c013a679>] __alloc_pages+0x1c9/0x35b
 [<f8ba4aec>] txRelease+0x61/0xb3 [jfs]
 [<f8ba51c5>] txCommit+0x267/0x301 [jfs]
 [<c013d602>] blockable_page_cache_readahead+0x119/0x1c8
 [<c013d8f2>] page_cache_readahead+0x241/0x2bb
 [<c013687e>] do_generic_mapping_read+0x567/0x58e
 [<c0160d53>] permission+0x6f/0x81
 [<c0136b84>] __generic_file_aio_read+0x1f3/0x225
 [<c01368a5>] file_read_actor+0x0/0xec
 [<c0160cc8>] generic_permission+0x12b/0x147
 [<c0136ce4>] generic_file_read+0xba/0xd2
 [<c012b751>] autoremove_wake_function+0x0/0x57
 [<c015d97e>] sys_fstat64+0x37/0x39
 [<c0153e71>] vfs_read+0xbf/0x145
 [<c0154178>] sys_read+0x51/0x80
 [<c0102ea5>] sysenter_past_esp+0x52/0x75
Code: 7f 34 bb 00 10 00 00 31 f6 81 e7 ff 0f 00 00 89 2c 24 29 fb 89 7c 24 10 e8
29 8b e7 c6 8b 54 24 10 89 d9 8d 3c 02 c1 e9 02 89 f0 <f3> ab f6 c3 02 74 02 66
ab f6 c3 01 74 01 aa 8b 54 24 10 8b 44

-- 
Configure bugmail: http://bugzilla.ubuntu.com/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug, or are watching the QA contact.