[Dazuko-devel] Kernel panics with dazukofs

[jim burns]

I'm getting kernel panics when I have several sub-directories of '/' overlaid 
with dazukofs, I have a desktop (KDE 3.5.6) loaded, and I do an update check, 
or any other package management function, whether it's yum or SuSE's (10.2) 
zypper. What's unique about package management is all those files (except the 
rpm database) are on an nfs4 server. It should be said that KDE lives on a 
local ntfs partition driven by the fuse based r/w ntfs-3g driver, but that 
filesystem is not overlaid.

Below is the dazukofs section of my fstab. Any suggestions on what NOT to 
overlay? (No mount points for remote filesystems are overlayed.) This is 
followed by sample kernel panic messages from syslog.

# dazukofs overlays - /du-dirs anf /procs-after-localfs are flat text files
/bin            /bin            dazukofs        dir=/bin
/boot           /boot           dazukofs        dir=/boot
#/dev           /dev            dazukofs        dir=/dev           ------- 
major network problems
/du-dirs        /du-dirs        dazukofs        dir=/du-dirs
/etc            /etc            dazukofs        dir=/etc
/home           /home           dazukofs        dir=/home
#/lib           /lib            dazukofs        dir=/lib           ------- 
don't overlay kernel modules ?
/media          /media          dazukofs        dir=/media
#/mnt           /mnt            dazukofs        dir=/mnt           ------- 
nfs4 mount point
/net            /net            dazukofs        dir=/net
/opt            /opt            dazukofs        dir=/opt
#/proc          /proc           dazukofs        dir=/proc          ------- 
major network problems
/procs-after-localfs     /procs-after-localfs     dazukofs        
dir=/procs-after-localfs
/root           /root           dazukofs        dir=/root
#/sbin          /sbin           dazukofs        dir=/sbin          ------- 
service start errors
/srv            /srv            dazukofs        dir=/srv
#/sys           /sys            dazukofs        dir=/sys           ------- 
major network problems
/tmp            /tmp            dazukofs        dir=/tmp
#/usr           /usr            dazukofs        dir=/usr           ------- 
service start errors
#/var           /var            dazukofs        dir=/var           ------- nfs 
problems
#/windows       /windows        dazukofs        dir=/windows       ------- 
contains local & samba mount points
#/windows/Dell  /windows/Dell   dazukofs        dir=/windows/Dell
#/windows/Digi  /windows/Digi   dazukofs        dir=/windows/Digi

The following type of kernel panic will lock up the KDE desktop.

May 10 07:05:12 Dell4550 kernel: BUG: unable to handle kernel paging request 
at virtual address b7e16e41
May 10 07:05:12 Dell4550 kernel:  printing eip:
May 10 07:05:12 Dell4550 kernel: c02a5dfa
May 10 07:05:12 Dell4550 kernel: *pde = 1736f067
May 10 07:05:12 Dell4550 kernel: Oops: 0003 [#1]
May 10 07:05:12 Dell4550 kernel: SMP 
May 10 07:05:12 Dell4550 kernel: last sysfs file: /devices/platform/i2c-3/name
May 10 07:05:12 Dell4550 kernel: Modules linked in: xt_pkttype ipt_LOG 
nls_utf8 cifs ppp_generic slhc snd_pcm_oss snd_mixer_oss snd_seq_midi 
snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_event 
snd_seq_midi_emul snd_seq nfs lockd nfs_acl sunrpc af_packet button battery 
ac ip6t_REJECT ip6t_LOG xt_limit xt_tcpudp ipt_REJECT xt_state iptable_mangle 
iptable_nat ip_nat iptable_filter ip6table_mangle ip_conntrack nfnetlink 
ip_tables ip6table_filter ip6_tables x_tables ipv6 fuse nls_iso8859_1 
nls_cp437 vfat fat loop dm_mod dazuko usbhid nvidia hsfpcibasic2 hsfserial 
snd_emu10k1 snd_rawmidi snd_ac97_codec snd_ac97_bus snd_pcm hsfengine 
ohci1394 ide_cd snd_seq_device cdrom ieee1394 snd_timer snd_page_alloc 
snd_util_mem snd_hwdep snd e100 emu10k1_gp gameport soundcore i8xx_tco 
ehci_hcd mii hsfosspec uhci_hcd hsfsoar intel_agp usbcore agpgart shpchp 
pci_hotplug i2c_i801 i2c_core parport_pc lp parport reiserfs edd fan thermal 
processor piix ide_disk ide_core
May 10 07:05:12 Dell4550 kernel: CPU:    0
May 10 07:05:12 Dell4550 kernel: EIP:    0060:[<c02a5dfa>]    Tainted: PF    U 
VLI
May 10 07:05:12 Dell4550 kernel: EFLAGS: 00010246   (2.6.18.8-0.3-default #1) 
May 10 07:05:12 Dell4550 kernel: EIP is at _spin_lock+0x1/0xf
May 10 07:05:12 Dell4550 kernel: eax: b7e16e41   ebx: d03e53e0   ecx: f157123e  
 
edx: dff32000
May 10 07:05:13 Dell4550 kernel: esi: c11f2860   edi: b7e16d61   ebp: 00000000  
 
esp: dff33e28
May 10 07:05:14 Dell4550 kernel: ds: 007b   es: 007b   ss: 0068
May 10 07:05:14 Dell4550 kernel: Process kswapd0 (pid: 119, ti=dff32000 
task=dff317f0 task.ti=dff32000)
May 10 07:05:14 Dell4550 kernel: Stack: f15712e5 00000000 d03e53e0 d03e53e0 
cf89dcd0 00000001 00001000 c11f2860 
May 10 07:05:14 Dell4550 kernel:        00000000 c11f2860 00000000 c0165ab4 
c11f2860 c01500cb 00000000 c0150197 
May 10 07:05:14 Dell4550 kernel:        0000000e c12315a0 00000000 00000000 
cf89dd7c 00000000 ffffffff 0000000e 
May 10 07:05:14 Dell4550 kernel: Call Trace:
May 10 07:05:14 Dell4550 kernel:  [<f15712e5>] 
reiserfs_invalidatepage+0xa7/0x172 [reiserfs]
May 10 07:05:14 Dell4550 kernel:  [<c0165ab4>] do_invalidatepage+0x19/0x1b
May 10 07:05:14 Dell4550 kernel:  [<c01500cb>] 
truncate_complete_page+0x18/0x3a
May 10 07:05:14 Dell4550 kernel:  [<c0150197>] 
truncate_inode_pages_range+0xaa/0x26e
May 10 07:05:14 Dell4550 kernel:  [<c0150372>] truncate_inode_pages+0x17/0x1d
May 10 07:05:14 Dell4550 kernel:  [<c017a1d2>] generic_delete_inode+0xb6/0x10f
May 10 07:05:14 Dell4550 kernel:  [<c0179c59>] iput+0x63/0x65
May 10 07:05:14 Dell4550 kernel:  [<c0178ea5>] prune_one_dentry+0x53/0x74
May 10 07:05:15 Dell4550 kernel:  [<c0178fac>] prune_dcache+0xe6/0x113
May 10 07:05:15 Dell4550 kernel:  [<c0178fef>] shrink_dcache_memory+0x16/0x2d
May 10 07:05:15 Dell4550 kernel:  [<c0151278>] shrink_slab+0xd5/0x13e
May 10 07:05:15 Dell4550 kernel:  [<c014e85c>] throttle_vm_writeout+0x18/0x62
May 10 07:05:15 Dell4550 kernel:  [<c0151636>] kswapd+0x2be/0x39d
May 10 07:05:15 Dell4550 kernel:  [<c01314ee>] 
autoremove_wake_function+0x0/0x35
May 10 07:05:15 Dell4550 kernel:  [<c0151378>] kswapd+0x0/0x39d
May 10 07:05:15 Dell4550 kernel:  [<c013141c>] kthread+0xc0/0xec
May 10 07:05:15 Dell4550 kernel:  [<c013135c>] kthread+0x0/0xec
May 10 07:05:15 Dell4550 kernel:  [<c0102005>] kernel_thread_helper+0x5/0xb
May 10 07:05:15 Dell4550 kernel: Code: 05 90 ff 02 30 c9 89 c8 c3 89 c2 90 81 
28 00 00 00 01 0f 94 c0 84 c0 b9 01 00 00 00 75 09 90 81 02 00 00 00 01 30 c9 
89 c8 c3 90 <fe> 08 79 09 f3 90 80 38 00 7e f9 eb f2 c3 90 81 28 00 00 00 01 
May 10 07:05:15 Dell4550 kernel: EIP: [<c02a5dfa>] _spin_lock+0x1/0xf SS:ESP 
0068:dff33e28

I got similar output for cp, kded, knotify (twice),  & konsole.

Then, 5 1/2 hours later, I got a somewhat different kernel panic 
from 'antivir', and then the system is frozen. Any ideas?

May 10 12:27:51 Dell4550 kernel:  <1>BUG: unable to handle kernel paging 
request at virtual address b7e16e41
May 10 12:27:51 Dell4550 kernel:  printing eip:
May 10 12:27:51 Dell4550 kernel: c02a5dfa
May 10 12:27:51 Dell4550 kernel: *pde = 0d4ce067
May 10 12:27:51 Dell4550 kernel: Oops: 0002 [#7]
May 10 12:27:51 Dell4550 kernel: SMP 
May 10 12:27:51 Dell4550 kernel: last sysfs file: /devices/platform/i2c-3/name
May 10 12:27:51 Dell4550 kernel: Modules linked in: xt_pkttype ipt_LOG 
nls_utf8 cifs ppp_generic slhc snd_pcm_oss snd_mixer_oss snd_seq_midi 
snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_event 
snd_seq_midi_emul snd_seq nfs lockd nfs_acl sunrpc af_packet button battery 
ac ip6t_REJECT ip6t_LOG xt_limit xt_tcpudp ipt_REJECT xt_state iptable_mangle 
iptable_nat ip_nat iptable_filter ip6table_mangle ip_conntrack nfnetlink 
ip_tables ip6table_filter ip6_tables x_tables ipv6 fuse nls_iso8859_1 
nls_cp437 vfat fat loop dm_mod dazuko usbhid nvidia hsfpcibasic2 hsfserial 
snd_emu10k1 snd_rawmidi snd_ac97_codec snd_ac97_bus snd_pcm hsfengine 
ohci1394 ide_cd snd_seq_device cdrom ieee1394 snd_timer snd_page_alloc 
snd_util_mem snd_hwdep snd e100 emu10k1_gp gameport soundcore i8xx_tco 
ehci_hcd mii hsfosspec uhci_hcd hsfsoar intel_agp usbcore agpgart shpchp 
pci_hotplug i2c_i801 i2c_core parport_pc lp parport reiserfs edd fan thermal 
processor piix ide_disk ide_core
May 10 12:27:51 Dell4550 kernel: CPU:    0
May 10 12:27:51 Dell4550 kernel: EIP:    0060:[<c02a5dfa>]    Tainted: PF    U 
VLI
May 10 12:27:51 Dell4550 kernel: EFLAGS: 00010246   (2.6.18.8-0.3-default #1) 
May 10 12:27:51 Dell4550 kernel: EIP is at _spin_lock+0x1/0xf
May 10 12:27:51 Dell4550 kernel: eax: b7e16e41   ebx: cf366720   ecx: f157123e  
 
edx: d5c72000
May 10 12:27:51 Dell4550 kernel: esi: c11e7aa0   edi: b7e16d61   ebp: 00000000  
 
esp: d5c73d68
May 10 12:27:52 Dell4550 kernel: ds: 007b   es: 007b   ss: 0068
May 10 12:27:52 Dell4550 kernel: Process antivir (pid: 16358, ti=d5c72000 
task=eef26f50 task.ti=d5c72000)
May 10 12:27:52 Dell4550 kernel: Stack: f15712e5 00000000 cf366720 cf366720 
cf6a9b6c 00000001 00001000 c11e7aa0 
May 10 12:27:52 Dell4550 kernel:        00000000 c11e7aa0 00000000 c0165ab4 
c11e7aa0 c01500cb 00000000 c0150197 
May 10 12:27:52 Dell4550 kernel:        0000000e c0127e1f 00000000 00000000 
cf6a9c18 00000000 ffffffff 0000000e 
May 10 12:27:52 Dell4550 kernel: Call Trace:
May 10 12:27:52 Dell4550 kernel:  [<f15712e5>] 
reiserfs_invalidatepage+0xa7/0x172 [reiserfs]
May 10 12:27:52 Dell4550 kernel:  [<c0165ab4>] do_invalidatepage+0x19/0x1b
May 10 12:27:52 Dell4550 kernel:  [<c01500cb>] 
truncate_complete_page+0x18/0x3a
May 10 12:27:52 Dell4550 kernel:  [<c0150197>] 
truncate_inode_pages_range+0xaa/0x26e
May 10 12:27:52 Dell4550 kernel:  [<c0127e1f>] getnstimeofday+0x30/0xb6
May 10 12:27:52 Dell4550 kernel:  [<c0150372>] truncate_inode_pages+0x17/0x1d
May 10 12:27:52 Dell4550 kernel:  [<c017a1d2>] generic_delete_inode+0xb6/0x10f
May 10 12:27:52 Dell4550 kernel:  [<c0179c59>] iput+0x63/0x65
May 10 12:27:53 Dell4550 kernel:  [<c0178ea5>] prune_one_dentry+0x53/0x74
May 10 12:27:53 Dell4550 kernel:  [<c0178fac>] prune_dcache+0xe6/0x113
May 10 12:27:53 Dell4550 kernel:  [<c0178fef>] shrink_dcache_memory+0x16/0x2d
May 10 12:27:53 Dell4550 kernel:  [<c0151278>] shrink_slab+0xd5/0x13e
May 10 12:27:53 Dell4550 kernel:  [<c014e85c>] throttle_vm_writeout+0x18/0x62
May 10 12:27:53 Dell4550 kernel:  [<c0151b1e>] try_to_free_pages+0x151/0x217
May 10 12:27:53 Dell4550 kernel:  [<c014dd59>] __alloc_pages+0x18f/0x2c8
May 10 12:27:53 Dell4550 kernel:  [<c0154931>] __handle_mm_fault+0x132/0x871
May 10 12:27:53 Dell4550 kernel:  [<f22464ba>] nv_kern_isr_bh+0x1e/0x23 
[nvidia]
May 10 12:27:53 Dell4550 kernel:  [<c02a6eab>] do_page_fault+0x213/0x507
May 10 12:27:53 Dell4550 kernel:  [<c0164fa6>] vfs_read+0x11e/0x15d
May 10 12:27:53 Dell4550 kernel:  [<c02a6c98>] do_page_fault+0x0/0x507
May 10 12:27:53 Dell4550 kernel:  [<c0104fb9>] error_code+0x39/0x40
May 10 12:27:53 Dell4550 kernel: Code: 05 90 ff 02 30 c9 89 c8 c3 89 c2 90 81 
28 00 00 00 01 0f 94 c0 84 c0 b9 01 00 00 00 75 09 90 81 02 00 00 00 01 30 c9 
89 c8 c3 90 <fe> 08 79 09 f3 90 80 38 00 7e f9 eb f2 c3 90 81 28 00 00 00 01