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Bug#577640: marked as done (linux-image-2.6.33-2-amd64: Kernel warnings in netns thread)

Your message dated Mon, 26 Jul 2010 09:10:04 +0200
with message-id <20100726071003.GI19138@baikonur.stro.at>
and subject line Re: Bug#577640: Another oops + repost
has caused the Debian Bug report #577640,
regarding linux-image-2.6.33-2-amd64: Kernel warnings in netns thread
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
577640: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=577640
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-2.6
Version: 2.6.33-1~experimental.4
Severity: normal
Tags: experimental

Firstly, please note that I'm running this inside a Qemu, but I imagine that it should not change things much.

I installed 2.6.33 to try out the new improvements regarding network namespaces, and while creating and killing hundreds of them, I got many warnings from the kernel that might indicate a bug somewhere. Please see the log already included by reportbug.

-- Package-specific info:
** Version:
Linux version 2.6.33-2-amd64 (Debian 2.6.33-1~experimental.4) (maks@debian.org) (gcc version 4.3.4 (Debian 4.3.4-8) ) #1 SMP Wed Mar 17 18:41:49 UTC 2010

** Command line:
BOOT_IMAGE=/boot/vmlinuz-2.6.33-2-amd64 root=UUID=195c18a2-eda7-40b8-8748-381999d6c854 ro quiet

** Tainted: W (512)
 * Taint on warning.

** Kernel log:
[ 6696.034566] ---[ end trace ef7b93cb006e989d ]---
[ 6696.035331] ------------[ cut here ]------------
[ 6696.035334] WARNING: at /build/mattems-linux-2.6_2.6.33-1~experimental.4-amd64-ieqSsa/linux-2.6-2.6.33-1~experimental.4/debian/build/source_amd64_none/kernel/sysctl.c:1894 unregister_sysctl_table+0xa6/0xd1()
[ 6696.035336] Hardware name: 
[ 6696.035337] Modules linked in: veth loop parport_pc parport snd_pcm tpm_tis evdev snd_timer i2c_piix4 tpm tpm_bios button processor serio_raw i2c_core snd soundcore snd_page_alloc pcspkr psmouse ext3 jbd mbcache sg sr_mod cdrom sd_mod crc_t10dif ata_generic ata_piix libata floppy 8139cp thermal thermal_sys 8139too mii scsi_mod [last unloaded: veth]
[ 6696.035354] Pid: 9, comm: netns Tainted: G        W  2.6.33-2-amd64 #1
[ 6696.035355] Call Trace:
[ 6696.035357]  [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
[ 6696.035360]  [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
[ 6696.035362]  [<ffffffff81046b81>] ? warn_slowpath_common+0x77/0xa3
[ 6696.035364]  [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
[ 6696.035367]  [<ffffffff812b1205>] ? addrconf_ifdown+0x26f/0x2cc
[ 6696.035369]  [<ffffffff81247edc>] ? neigh_sysctl_unregister+0x1a/0x31
[ 6696.035371]  [<ffffffff812b1211>] ? addrconf_ifdown+0x27b/0x2cc
[ 6696.035374]  [<ffffffff812b2b0c>] ? addrconf_notify+0x714/0x7ea
[ 6696.035376]  [<ffffffff811eb2e7>] ? extract_entropy+0x6a/0x125
[ 6696.035379]  [<ffffffff81053aaf>] ? lock_timer_base+0x26/0x4b
[ 6696.035382]  [<ffffffff8123951c>] ? skb_dequeue+0x50/0x58
[ 6696.035384]  [<ffffffff812482c8>] ? pneigh_queue_purge+0x25/0x2f
[ 6696.035386]  [<ffffffff81249a91>] ? neigh_ifdown+0xba/0xc9
[ 6696.035389]  [<ffffffff81062f6d>] ? notifier_call_chain+0x29/0x4c
[ 6696.035392]  [<ffffffff81243662>] ? rollback_registered_many+0xed/0x19c
[ 6696.035394]  [<ffffffff8124371f>] ? unregister_netdevice_many+0xe/0x57
[ 6696.035397]  [<ffffffff812438a3>] ? default_device_exit_batch+0x92/0xa3
[ 6696.035399]  [<ffffffff8123e97a>] ? cleanup_net+0xfd/0x1af
[ 6696.035402]  [<ffffffff8105bd0d>] ? worker_thread+0x188/0x21d
[ 6696.035404]  [<ffffffff8123e87d>] ? cleanup_net+0x0/0x1af
[ 6696.035406]  [<ffffffff8105f2d2>] ? autoremove_wake_function+0x0/0x2e
[ 6696.035409]  [<ffffffff8105bb85>] ? worker_thread+0x0/0x21d
[ 6696.035411]  [<ffffffff8105ee99>] ? kthread+0x79/0x81
[ 6696.035414]  [<ffffffff810098e4>] ? kernel_thread_helper+0x4/0x10
[ 6696.035416]  [<ffffffff8105ee20>] ? kthread+0x0/0x81
[ 6696.035418]  [<ffffffff810098e0>] ? kernel_thread_helper+0x0/0x10
[ 6696.035419] ---[ end trace ef7b93cb006e989e ]---
[ 6696.037287] ------------[ cut here ]------------
[ 6696.037290] WARNING: at /build/mattems-linux-2.6_2.6.33-1~experimental.4-amd64-ieqSsa/linux-2.6-2.6.33-1~experimental.4/debian/build/source_amd64_none/kernel/sysctl.c:1894 unregister_sysctl_table+0xa6/0xd1()
[ 6696.037293] Hardware name: 
[ 6696.037294] Modules linked in: veth loop parport_pc parport snd_pcm tpm_tis evdev snd_timer i2c_piix4 tpm tpm_bios button processor serio_raw i2c_core snd soundcore snd_page_alloc pcspkr psmouse ext3 jbd mbcache sg sr_mod cdrom sd_mod crc_t10dif ata_generic ata_piix libata floppy 8139cp thermal thermal_sys 8139too mii scsi_mod [last unloaded: veth]
[ 6696.037311] Pid: 9, comm: netns Tainted: G        W  2.6.33-2-amd64 #1
[ 6696.037312] Call Trace:
[ 6696.037314]  [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
[ 6696.037317]  [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
[ 6696.037319]  [<ffffffff81046b81>] ? warn_slowpath_common+0x77/0xa3
[ 6696.037321]  [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
[ 6696.037324]  [<ffffffff812b1205>] ? addrconf_ifdown+0x26f/0x2cc
[ 6696.037326]  [<ffffffff81247edc>] ? neigh_sysctl_unregister+0x1a/0x31
[ 6696.037328]  [<ffffffff812b1211>] ? addrconf_ifdown+0x27b/0x2cc
[ 6696.037331]  [<ffffffff812b2b0c>] ? addrconf_notify+0x714/0x7ea
[ 6696.037333]  [<ffffffff811eb2e7>] ? extract_entropy+0x6a/0x125
[ 6696.037336]  [<ffffffff81053aaf>] ? lock_timer_base+0x26/0x4b
[ 6696.037339]  [<ffffffff8123951c>] ? skb_dequeue+0x50/0x58
[ 6696.037341]  [<ffffffff812482c8>] ? pneigh_queue_purge+0x25/0x2f
[ 6696.037343]  [<ffffffff81249a91>] ? neigh_ifdown+0xba/0xc9
[ 6696.037346]  [<ffffffff81062f6d>] ? notifier_call_chain+0x29/0x4c
[ 6696.037349]  [<ffffffff81243662>] ? rollback_registered_many+0xed/0x19c
[ 6696.037351]  [<ffffffff8124371f>] ? unregister_netdevice_many+0xe/0x57
[ 6696.037354]  [<ffffffff812438a3>] ? default_device_exit_batch+0x92/0xa3
[ 6696.037356]  [<ffffffff8123e97a>] ? cleanup_net+0xfd/0x1af
[ 6696.037359]  [<ffffffff8105bd0d>] ? worker_thread+0x188/0x21d
[ 6696.037361]  [<ffffffff8123e87d>] ? cleanup_net+0x0/0x1af
[ 6696.037363]  [<ffffffff8105f2d2>] ? autoremove_wake_function+0x0/0x2e
[ 6696.037366]  [<ffffffff8105bb85>] ? worker_thread+0x0/0x21d
[ 6696.037368]  [<ffffffff8105ee99>] ? kthread+0x79/0x81
[ 6696.037370]  [<ffffffff810098e4>] ? kernel_thread_helper+0x4/0x10
[ 6696.037373]  [<ffffffff8105ee20>] ? kthread+0x0/0x81
[ 6696.037375]  [<ffffffff810098e0>] ? kernel_thread_helper+0x0/0x10
[ 6696.037376] ---[ end trace ef7b93cb006e989f ]---
[ 6696.038136] ------------[ cut here ]------------
[ 6696.038139] WARNING: at /build/mattems-linux-2.6_2.6.33-1~experimental.4-amd64-ieqSsa/linux-2.6-2.6.33-1~experimental.4/debian/build/source_amd64_none/kernel/sysctl.c:1894 unregister_sysctl_table+0xa6/0xd1()
[ 6696.038141] Hardware name: 
[ 6696.038142] Modules linked in: veth loop parport_pc parport snd_pcm tpm_tis evdev snd_timer i2c_piix4 tpm tpm_bios button processor serio_raw i2c_core snd soundcore snd_page_alloc pcspkr psmouse ext3 jbd mbcache sg sr_mod cdrom sd_mod crc_t10dif ata_generic ata_piix libata floppy 8139cp thermal thermal_sys 8139too mii scsi_mod [last unloaded: veth]
[ 6696.038159] Pid: 9, comm: netns Tainted: G        W  2.6.33-2-amd64 #1
[ 6696.038161] Call Trace:
[ 6696.038163]  [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
[ 6696.038165]  [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
[ 6696.038167]  [<ffffffff81046b81>] ? warn_slowpath_common+0x77/0xa3
[ 6696.038170]  [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
[ 6696.038172]  [<ffffffff812b1205>] ? addrconf_ifdown+0x26f/0x2cc
[ 6696.038174]  [<ffffffff81247edc>] ? neigh_sysctl_unregister+0x1a/0x31
[ 6696.038177]  [<ffffffff812b1211>] ? addrconf_ifdown+0x27b/0x2cc
[ 6696.038179]  [<ffffffff812b2b0c>] ? addrconf_notify+0x714/0x7ea
[ 6696.038182]  [<ffffffff811eb2e7>] ? extract_entropy+0x6a/0x125
[ 6696.038184]  [<ffffffff81053aaf>] ? lock_timer_base+0x26/0x4b
[ 6696.038192]  [<ffffffff8123951c>] ? skb_dequeue+0x50/0x58
[ 6696.038195]  [<ffffffff812482c8>] ? pneigh_queue_purge+0x25/0x2f
[ 6696.038197]  [<ffffffff81249a91>] ? neigh_ifdown+0xba/0xc9
[ 6696.038200]  [<ffffffff81062f6d>] ? notifier_call_chain+0x29/0x4c
[ 6696.038203]  [<ffffffff81243662>] ? rollback_registered_many+0xed/0x19c
[ 6696.038205]  [<ffffffff8124371f>] ? unregister_netdevice_many+0xe/0x57
[ 6696.038208]  [<ffffffff812438a3>] ? default_device_exit_batch+0x92/0xa3
[ 6696.038210]  [<ffffffff8123e97a>] ? cleanup_net+0xfd/0x1af
[ 6696.038213]  [<ffffffff8105bd0d>] ? worker_thread+0x188/0x21d
[ 6696.038215]  [<ffffffff8123e87d>] ? cleanup_net+0x0/0x1af
[ 6696.038217]  [<ffffffff8105f2d2>] ? autoremove_wake_function+0x0/0x2e
[ 6696.038220]  [<ffffffff8105bb85>] ? worker_thread+0x0/0x21d
[ 6696.038222]  [<ffffffff8105ee99>] ? kthread+0x79/0x81
[ 6696.038224]  [<ffffffff810098e4>] ? kernel_thread_helper+0x4/0x10
[ 6696.038226]  [<ffffffff8105ee20>] ? kthread+0x0/0x81
[ 6696.038229]  [<ffffffff810098e0>] ? kernel_thread_helper+0x0/0x10
[ 6696.038230] ---[ end trace ef7b93cb006e98a0 ]---

** Model information
sys_vendor: 
product_name: 
product_version: 
chassis_vendor: 
chassis_version: 
bios_vendor: QEMU
bios_version: QEMU

** Loaded modules:
Module                  Size  Used by
veth                    3834  0 
loop                   11902  0 
parport_pc             18855  0 
parport                27314  1 parport_pc
snd_pcm                61078  0 
tpm_tis                 7336  0 
evdev                   7384  2 
snd_timer              15749  1 snd_pcm
i2c_piix4               8328  0 
tpm                     9933  1 tpm_tis
tpm_bios                4521  1 tpm
button                  4634  0 
processor              29489  0 
serio_raw               3960  0 
i2c_core               15385  1 i2c_piix4
snd                    47090  2 snd_pcm,snd_timer
soundcore               4822  1 snd
snd_page_alloc          6313  1 snd_pcm
pcspkr                  1699  0 
psmouse                45587  0 
ext3                  107181  1 
jbd                    37805  1 ext3
mbcache                 5050  1 ext3
sg                     18959  0 
sr_mod                 12602  0 
cdrom                  29358  1 sr_mod
sd_mod                 30459  2 
crc_t10dif              1276  1 sd_mod
ata_generic             3015  0 
ata_piix               20477  1 
libata                133993  2 ata_generic,ata_piix
floppy                 49462  0 
8139cp                 16085  0 
thermal                11889  0 
thermal_sys            11990  2 processor,thermal
8139too                18061  0 
mii                     3210  2 8139cp,8139too
scsi_mod              123365  4 sg,sr_mod,sd_mod,libata

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02)
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master])
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
	Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
	Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
	Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
	Region 4: I/O ports at c000 [size=16]
	Kernel driver in use: ata_piix

00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03)
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 9
	Kernel driver in use: piix4_smbus

00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller])
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Region 0: Memory at f0000000 (32-bit, prefetchable) [size=32M]
	Region 1: Memory at f2000000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at <unassigned> [disabled]

00:03.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ [10ec:8139] (rev 20)
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 11
	Region 0: I/O ports at c100 [size=256]
	Region 1: Memory at f2001000 (32-bit, non-prefetchable) [size=256]
	Kernel driver in use: 8139cp

00:04.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ [10ec:8139] (rev 20)
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 10
	Region 0: I/O ports at c200 [size=256]
	Region 1: Memory at f2001100 (32-bit, non-prefetchable) [size=256]
	Kernel driver in use: 8139cp


** USB devices:
not available


-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.33-2-amd64 (SMP w/1 CPU core)
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 linux-image-2.6.33-2-amd64 depends on:
ii  debconf [debconf 1.5.31                  Debian configuration management sy
ii  initramfs-tools  0.94.4                  tools for generating an initramfs
ii  linux-base       2.6.33-1~experimental.4 Linux image base package
ii  module-init-tool 3.12~pre2-2             tools for managing Linux kernel mo

Versions of packages linux-image-2.6.33-2-amd64 recommends:
ii  firmware-linux-f 2.6.33-1~experimental.4 Binary firmware for various driver

Versions of packages linux-image-2.6.33-2-amd64 suggests:
ii  grub                          0.97-60    GRand Unified Bootloader (dummy pa
pn  linux-doc-2.6.33              <none>     (no description available)

Versions of packages linux-image-2.6.33-2-amd64 is related to:
pn  firmware-bnx2                 <none>     (no description available)
pn  firmware-bnx2x                <none>     (no description available)
pn  firmware-ipw2x00              <none>     (no description available)
pn  firmware-ivtv                 <none>     (no description available)
pn  firmware-iwlwifi              <none>     (no description available)
pn  firmware-linux                <none>     (no description available)
pn  firmware-linux-nonfree        <none>     (no description available)
pn  firmware-qlogic               <none>     (no description available)
pn  firmware-ralink               <none>     (no description available)

-- debconf information:
  shared/kernel-image/really-run-bootloader: true
  linux-image-2.6.33-2-amd64/prerm/removing-running-kernel-2.6.33-2-amd64: true
  linux-image-2.6.33-2-amd64/postinst/depmod-error-initrd-2.6.33-2-amd64: false
  linux-image-2.6.33-2-amd64/postinst/bootloader-error-2.6.33-2-amd64:
  linux-image-2.6.33-2-amd64/prerm/would-invalidate-boot-loader-2.6.33-2-amd64: true
  linux-image-2.6.33-2-amd64/postinst/bootloader-test-error-2.6.33-2-amd64:
  linux-image-2.6.33-2-amd64/postinst/missing-firmware-2.6.33-2-amd64:

--- End Message ---
--- Begin Message --- 
Version: 2.6.35-rc6

On Mon, Jul 26, 2010 at 05:21:45AM +0200, Martín Ferrari wrote:
> 
> On Thu, Jul 22, 2010 at 18:43, Eric W. Biederman <ebiederm@xmission.com> wrote:
> 
> >> First of all, I would like to know if anybody was able to fix this
> >> problem  that got kinda lost in the thread:
> >
> > I can't reproduce this on 2.6.35-rc1+
> >
> > Can you please test a 2.6.35-rc version?  If you can still reproduce
> > it there can you send me your .config?  Otherwise I expect my last
> > round of changes to sysfs fixed whatever was the underlying problem.
> 
> I just download and compiled rc6, and all of these problems seem to be
> solved. Thanks a lot!

aboves version is sitting in NEW should hit archive soon, thus closing.
thanks for report.

--- End Message ---
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