[Pkg-samba-maint] Bug#579525: cifs-utils: Mounting samba share of aufs crashes kernel

Jon jon.mlist at gmail.com
Wed Apr 28 10:33:04 UTC 2010

Package: cifs-utils
Version: 2:4.1-1
Severity: important
Tags: sid squeeze

I've got a server with several disks and partitions. I want to group some of
them together, and I do that by using aufs, example being:
/mnt/disk1/Pictures/Holiday /mnt/disk1/Pictures/Buildings
/mnt/disk2/Pictures/Holiday /mnt/disk2/Pictures/Buildings  I then mount the two
disks with aufs: mount -t aufs -o
dirs=/mnt/disk1/Pictures/:/mnt/disk2/Pictures/ none  /share/Pictures  I export
the file system with samba as ro: [server_files]    comment = server_files
read only = yes    locking = no    path = /share    guest ok = no    follow
symlinks=yes  I mount that on my workstation which works out fine. As soon as I
try to access files in the mount my debian gets unstable, and locks up
eventually. I get this in my log: [  882.616497] BUG: soft lockup - CPU#1 stuck
for 61s! [bash:2715] [  882.616501] Modules linked in: nls_utf8 cifs nvidia(P)
agpgart sco bridge stp bnep l2cap bluetooth rfkill cpufreq_userspace
cpufreq_stats cpufreq_conservative cpufreq_powersave binfmt_misc fuse loop
firewire_sbp2 snd_wavefront snd_intel8x0 snd_ac97_codec snd_cs4236 ac97_bus
snd_wss_lib snd_opl3_lib snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_mpu401
snd_mpu401_uart snd_seq_midi rt2870sta snd_rawmidi snd_seq_midi_event snd_seq
snd_timer snd_seq_device ns558 gameport asus_atk0110 parport_pc evdev pcspkr
psmouse parport snd processor serio_raw i2c_nforce2 soundcore snd_page_alloc
i2c_core ext4 mbcache jbd2 crc16 ide_cd_mod usbhid hid cdrom sd_mod crc_t10dif
ata_generic ohci_hcd ide_pci_generic amd74xx sata_sil24 sata_nv ehci_hcd floppy
firewire_ohci firewire_core crc_itu_t button ide_core sky2 forcedeth libata
scsi_mod usbcore nls_base thermal fan thermal_sys [last unloaded:
scsi_wait_scan] [  882.616501]  [  882.616501] Pid: 2715, comm: bash Tainted: P
(2.6.32-trunk-686 #1) System Product Name [  882.616501] EIP: 0060:[<f7ca9f79>]
EFLAGS: 00000286 CPU: 1 [  882.616501] EIP is at
build_path_from_dentry+0xa2/0x198 [cifs] [  882.616501] EAX: f24d56e8 EBX:
f6b47aa0 ECX: f19f1f60 EDX: f6bc3990 [  882.616501] ESI: 83cac4f3 EDI: f0e4ff00
EBP: 00000000 ESP: f19f1eb8 [  882.616501]  DS: 007b ES: 007b FS: 00d8 GS: 00e0
SS: 0068 [  882.616501] CR0: 8005003b CR2: 09fe4808 CR3: 319ab000 CR4: 000006d0
[  882.616501] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [
882.616501] DR6: ffff0ff0 DR7: 00000400 [  882.616501] Call Trace: [
882.616501]  [<c10bb24d>] ? user_path_at+0x40/0x5f [  882.616501]  [<f7cb044b>]
? cifs_revalidate+0x6d/0x301 [cifs] [  882.616501]  [<f7cb06df>] ?
cifs_getattr+0x0/0x39 [cifs] [  882.616501]  [<f7cb06ed>] ?
cifs_getattr+0xe/0x39 [cifs] [  882.616501]  [<f7cb06df>] ?
cifs_getattr+0x0/0x39 [cifs] [  882.616501]  [<c10b4b82>] ?
vfs_getattr+0x36/0x4d [  882.616501]  [<c10b4bd8>] ? vfs_fstatat+0x3f/0x50 [
882.616501]  [<c10b4ca5>] ? vfs_stat+0x10/0x12 [  882.616501]  [<c10b4cb6>] ?
sys_stat64+0xf/0x23 [  882.616501]  [<c103bd92>] ? recalc_sigpending+0xf/0x2e [
882.616501]  [<c103c0aa>] ? sigprocmask+0x9d/0xbc [  882.616501]  [<c103c374>]
? sys_rt_sigprocmask+0x47/0xb5 [  882.616501]  [<c10030fb>] ?
sysenter_do_call+0x12/0x28 [  948.116496] BUG: soft lockup - CPU#1 stuck for
61s! [bash:2715]  ...

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-trunk-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages cifs-utils depends on:
ii  libc6                     2.10.2-6       Embedded GNU C Library: Shared lib
ii  libkeyutils1              1.4-1          Linux Key Management Utilities (li
ii  libkrb5-3                 1.8.1+dfsg-2   MIT Kerberos runtime libraries
ii  libtalloc2                2.0.1-1        hierarchical pool based memory all
ii  samba-common              2:3.4.7~dfsg-1 common files used by both the Samb

cifs-utils recommends no packages.

Versions of packages cifs-utils suggests:
pn  smbclient                     <none>     (no description available)

-- no debconf information
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