Bug#730434: same problem

[Vincas Dargis <vindrg@gmail.com>]

Up-to-date Debian 7.6 here,

I've noticed that after coming back to work after lunch break hour (no suspend, just screen lock), Dolphin freezes. Even new Dolphin instances locks up.

 I am not sure how it fixes up, some times I just restart system.

I've tried to run:

$stat /media/public

And kernel.log printed this (after some time):

Sep  4 13:31:50 acer kernel: [78120.680627] INFO: task stat:26929 blocked for more than 120 seconds.
Sep  4 13:31:50 acer kernel: [78120.680632] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep  4 13:31:50 acer kernel: [78120.680636] stat            D ffff88013fd13780     0 26929  26928 0x00000003
Sep  4 13:31:50 acer kernel: [78120.680645]  ffff88008131b8c0 0000000000000082 00007f9f00000000 ffff88013aeee180
Sep  4 13:31:50 acer kernel: [78120.680655]  0000000000013780 ffff88007441ffd8 ffff88007441ffd8 ffff88008131b8c0
Sep  4 13:31:50 acer kernel: [78120.680664]  ffff88013fd165c0 000000013fd165c0 0000000000000246 ffff8801205e1220
Sep  4 13:31:50 acer kernel: [78120.680673] Call Trace:
Sep  4 13:31:50 acer kernel: [78120.680681]  [<ffffffff8134fa44>] ? __mutex_lock_common.isra.5+0xff/0x164
Sep  4 13:31:50 acer kernel: [78120.680689]  [<ffffffff8134f932>] ? mutex_lock+0x1a/0x2d
Sep  4 13:31:50 acer kernel: [78120.680695]  [<ffffffff8115534a>] ? load_nls_default+0xe/0x1f
Sep  4 13:31:50 acer kernel: [78120.680706]  [<ffffffffa10880d2>] ? cifs_reconnect_tcon+0x197/0x2b0 [cifs]
Sep  4 13:31:50 acer kernel: [78120.680714]  [<ffffffff81103a33>] ? walk_component+0x3bf/0x406
Sep  4 13:31:50 acer kernel: [78120.680726]  [<ffffffffa1088af6>] ? smb_init+0x24/0x69 [cifs]
Sep  4 13:31:50 acer kernel: [78120.680739]  [<ffffffffa108d7fb>] ? CIFSSMBQPathInfo+0x63/0x21c [cifs]
Sep  4 13:31:50 acer kernel: [78120.680746]  [<ffffffff810ece5f>] ? kmem_cache_alloc_trace+0xbe/0xce
Sep  4 13:31:50 acer kernel: [78120.680762]  [<ffffffffa109e518>] ? cifs_get_inode_info+0x108/0x417 [cifs]
Sep  4 13:31:50 acer kernel: [78120.680776]  [<ffffffffa1097260>] ? build_path_from_dentry+0xc1/0x1ea [cifs]
Sep  4 13:31:50 acer kernel: [78120.680783]  [<ffffffff810ecd8f>] ? __kmalloc+0x100/0x112
Sep  4 13:31:50 acer kernel: [78120.680797]  [<ffffffffa10972c0>] ? build_path_from_dentry+0x121/0x1ea [cifs]
Sep  4 13:31:50 acer kernel: [78120.680813]  [<ffffffffa109fac3>] ? cifs_revalidate_dentry_attr+0x11e/0x16a [cifs]
Sep  4 13:31:50 acer kernel: [78120.680828]  [<ffffffffa109fbb9>] ? cifs_getattr+0x68/0xeb [cifs]
Sep  4 13:31:50 acer kernel: [78120.680835]  [<ffffffff810fe3e2>] ? vfs_getattr+0x1c/0x62
Sep  4 13:31:50 acer kernel: [78120.680841]  [<ffffffff810fe470>] ? vfs_fstatat+0x48/0x60
Sep  4 13:31:50 acer kernel: [78120.680847]  [<ffffffff810fe5bb>] ? sys_newlstat+0x12/0x2b
Sep  4 13:31:50 acer kernel: [78120.680856]  [<ffffffff81016b91>] ? ptrace_report_syscall.isra.11+0x27/0x4f
Sep  4 13:31:50 acer kernel: [78120.680865]  [<ffffffff810178c6>] ? syscall_trace_enter+0xb3/0x158
Sep  4 13:31:50 acer kernel: [78120.680871]  [<ffffffff81355608>] ? tracesys+0x7a/0xde
Sep  4 13:31:50 acer kernel: [78120.680878]  [<ffffffff81355667>] ? tracesys+0xd9/0xde

I'm using Wireless interface.

Some more info:

$ sudo ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
    link/ether 00:1b:24:41:7d:0f brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether 00:1b:77:08:20:29 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.10/24 brd 192.168.1.255 scope global wlan0
    inet6 fe80::21b:77ff:fe08:2029/64 scope link
       valid_lft forever preferred_lft forever


$ sudo lspci
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 03)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 03)
00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03)
00:1c.5 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 6 (rev 03)
00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HM (ICH8M) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) SATA Controller [AHCI mode] (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: NVIDIA Corporation G84 [GeForce 8600M GT] (rev a1)
06:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
08:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02)
0a:09.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
0a:09.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
0a:09.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12)
0a:09.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)

$ uname -a
Linux acer 3.2.0-4-amd64 #1 SMP Debian 3.2.60-1+deb7u3 x86_64 GNU/Linux

$ lsmod
Module                  Size  Used by
nfnetlink_log          17212  0
nfnetlink              12906  1 nfnetlink_log
des_generic            20851  0
ecb                    12737  0
md4                    12529  0
hmac                   12835  1
nls_utf8               12456  1
cifs                  243028  2
cryptd                 14517  0
aes_x86_64             16843  3
aes_generic            33026  1 aes_x86_64
pci_stub               12429  1
vboxpci                19096  0
vboxnetadp             25443  0
vboxnetflt             23657  0
vboxdrv               304503  3 vboxpci,vboxnetadp,vboxnetflt
parport_pc             22364  0
ppdev                  12763  0
lp                     17149  0
parport                31858  3 lp,ppdev,parport_pc
bnep                   17567  2
rfcomm                 33700  0
bluetooth             119455  10 rfcomm,bnep
binfmt_misc            12957  1
uinput                 17440  1
nfsd                  216167  2
nfs                   308353  0
nfs_acl                12511  2 nfs,nfsd
auth_rpcgss            37143  2 nfs,nfsd
fscache                36739  2 nfs,cifs
lockd                  67306  2 nfs,nfsd
sunrpc                173730  6 lockd,auth_rpcgss,nfs_acl,nfs,nfsd
loop                   22641  0
usbhid                 36418  0
uvcvideo               57744  0
videodev               70889  1 uvcvideo
v4l2_compat_ioctl32    16655  1 videodev
media                  18148  2 videodev,uvcvideo
hid                    81372  1 usbhid
nvidia              11264793  70
snd_hda_codec_realtek   188851  1
arc4                   12458  2
iwl3945                51683  0
snd_hda_intel          26259  4
iwl_legacy             48206  1 iwl3945
snd_hda_codec          78031  2 snd_hda_intel,snd_hda_codec_realtek
mac80211              192806  2 iwl_legacy,iwl3945
snd_hwdep              13186  1 snd_hda_codec
acer_wmi               26081  0
snd_pcm                68083  3 snd_hda_codec,snd_hda_intel
cfg80211              137243  3 mac80211,iwl_legacy,iwl3945
sparse_keymap          12760  1 acer_wmi
rfkill                 19012  5 cfg80211,acer_wmi,bluetooth
joydev                 17266  0
r592                   17835  0
snd_page_alloc         13003  2 snd_pcm,snd_hda_intel
r852                   17846  0
sm_common              16541  1 r852
nand                   44280  2 sm_common,r852
nand_ecc               12487  1 nand
nand_ids               12313  1 nand
snd_seq                45126  0
snd_seq_device         13176  1 snd_seq
snd_timer              22917  2 snd_seq,snd_pcm
i2c_i801               16870  0
i2c_core               23876  3 i2c_i801,nvidia,videodev
mtd                    24193  2 nand,sm_common
iTCO_wdt               17081  0
iTCO_vendor_support    12704  1 iTCO_wdt
memstick               13698  1 r592
ac                     12624  0
acpi_cpufreq           12935  1
video                  17683  0
battery                13146  0
mperf                  12453  1 acpi_cpufreq
wmi                    13243  1 acer_wmi
evdev                  17562  19
processor              28149  3 acpi_cpufreq
power_supply           13475  2 battery,ac
button                 12937  0
snd                    52893  15 snd_timer,snd_seq_device,snd_seq,snd_pcm,snd_hwdep,snd_hda_codec,snd_hda_intel,snd_hda_codec_realtek
psmouse                69265  0
serio_raw              12931  0
pcspkr                 12579  0
coretemp               12898  0
soundcore              13065  1 snd
ext4                  350763  1
crc16                  12343  2 ext4,bluetooth
jbd2                   62115  1 ext4
mbcache                13114  1 ext4
sg                     25874  0
sr_mod                 21899  0
cdrom                  35401  1 sr_mod
sd_mod                 36136  2
crc_t10dif             12348  1 sd_mod
ata_generic            12479  0
ata_piix               29535  0
ahci                   24997  1
libahci                22941  1 ahci
libata                140630  4 libahci,ahci,ata_piix,ata_generic
firewire_ohci          35772  0
thermal                17383  0
thermal_sys            18040  3 thermal,processor,video
uhci_hcd               26865  0
scsi_mod              162269  4 libata,sd_mod,sr_mod,sg
firewire_core          48449  1 firewire_ohci
crc_itu_t              12347  1 firewire_core
sdhci_pci              17976  0
ehci_hcd               40249  0
sdhci                  27053  1 sdhci_pci
mmc_core               68400  2 sdhci,sdhci_pci
tg3                   119064  0
libphy                 19057  1 tg3
usbcore               128741  6 ehci_hcd,uhci_hcd,uvcvideo,usbhid
usb_common             12354  1 usbcore