Public bug reported:
Since I upgraded from maverick to natty, I observe hangs of truecrypt
when copying a number of large files (6 files, ~6 GB) to a truecrypt
NTFS partition on an external eSATA drive. I can also reproduce the
problem with dd. In the logs I see stuff like this:
Jul 19 22:14:05 carbon kernel: [16293.933122] SLUB: Unable to allocate memory
on node -1 (gfp=0x20)
Jul 19 22:14:05 carbon kernel: [16293.933125] cache: kmalloc-8192, object
size: 8192, buffer size: 8192, default order: 3, min order: 1
Jul 19 22:14:05 carbon kernel: [16293.933128] node 0: slabs: 144, objs: 576,
free: 0
Jul 19 22:14:05 carbon kernel: [16293.933146] skbuff alloc of size 3904 failed
Jul 19 22:14:05 carbon kernel: [16294.022193] tail: page allocation failure.
order:1, mode:0x4020
(more in the attached logs)
Also, a truecrypt hang is reported:
Jul 19 23:05:37 carbon kernel: [ 1320.651644] INFO: task truecrypt:3186 blocked
for more than 120 seconds.
Jul 19 23:05:37 carbon kernel: [ 1320.651652] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 19 23:05:37 carbon kernel: [ 1320.651657] truecrypt D
0000000000000000 0 3186 1 0x00000000
Jul 19 23:05:37 carbon kernel: [ 1320.651667] ffff8800609c7920
0000000000000086 ffff8800609c7fd8 ffff8800609c6000
Jul 19 23:05:37 carbon kernel: [ 1320.651675] 0000000000013d00
ffff88010012df38 ffff8800609c7fd8 0000000000013d00
Jul 19 23:05:37 carbon kernel: [ 1320.651683] ffffffff81a0b020
ffff88010012db80 ffff8800badceeb8 ffff8800baa13d00
Jul 19 23:05:37 carbon kernel: [ 1320.651691] Call Trace:
Jul 19 23:05:37 carbon kernel: [ 1320.651707] [<ffffffff8110c110>] ?
sync_page+0x0/0x50
(more in the attached logs)
I found a workaround for this problem. It seems the system is running
out of memory (4GB laptop), so I found the suggestion to raise the
parameter vm.min_free_kbytes. This was set to ~7 MB initially, raising
it to 131072 prevents the problem from happening. It also seems to raise
the IO throughput to the truecrypt device slightly (between 10-20%), the
copy process stops less often.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-10-generic 2.6.38-10.46
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ziggy 2053 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xeb000000 irq 54'
Mixer name : 'Intel IbexPeak HDMI'
Components : 'HDA:10ec0269,104312d3,00100004
HDA:80862804,80860101,00100000'
Controls : 15
Simple ctrls : 8
Date: Wed Jul 20 21:12:33 2011
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=fdc319bf-2369-407b-ac3b-5480bb23a9f8
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100406)
MachineType: ASUSTeK Computer INC. N61Jv
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-10-generic
root=UUID=492a9e89-17ba-42ee-b053-4fc5382d33ed ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-10-generic N/A
linux-backports-modules-2.6.38-10-generic N/A
linux-firmware 1.52
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-07-01 (18 days ago)
dmi.bios.date: 12/10/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 222
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: N61Jv
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr222:bd12/10/2010:svnASUSTeKComputerINC.:pnN61Jv:pvr1.0:rvnASUSTeKComputerINC.:rnN61Jv:rvr1.0:cvnASUSTeKComputerINC.:ct10:cvr1.0:
dmi.product.name: N61Jv
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer INC.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug natty
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https://bugs.launchpad.net/bugs/813745
Title:
page allocation failure, truecrypt hangs when copying large files
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