10-07-2015
Process remians in Running state causing other similar process to sleep and results to system hang
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here why it is getting stuck in the __init_begin API. I am using linux kernel version 2.6.17.
Also i am not facing such probelm in kernel version 2.6.39
i have seen they have given one fix inside __init_begin in the kernel version 2.6.37 . Below is the fix
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index e7a6cca..664f942 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -22,7 +22,7 @@ SECTIONS
_text = .;
_stext = .;
__init_begin = .;
- INIT_TEXT_SECTION(PAGE_SIZE)
+ INIT_TEXT_SECTION(0)
. = ALIGN(PAGE_SIZE);
.text :
Now , how this fix related to my problem . please help me to overcome this problem
Looking forward for your suggestions and comments.
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LEARN ABOUT DEBIAN
pbuilder-uml.conf
pbuilder-uml.conf(5) pbuilder pbuilder-uml.conf(5)
NAME
pbuilder-uml.conf - configuration file for user-mode-linux port of pbuilder
DESCRIPTION
/etc/pbuilder/pbuilder-uml.conf contains default values used in pbuilder-user-mode-linux program invocation.
FORMAT
MY_ETH0=tuntap,,,192.168.0.2
Configures ethernet setting used for booting linux. See how rootstrap boots your system, and copy that.
Specify --eth0=slirp,12345,/usr/bin/slirp-fullbolt to use the slirp connection.
UML_IP=192.168.0.3
IP address to use for guest OS.
This can be set to dhcp for obtaining IP address through DHCP.
UML_NETMASK=255.255.255.0
Guest OS netmask
UML_NETWORK=192.168.0.0
Guest OS network
UML_BROADCAST=255.255.255.255
Guest OS broadcast
UML_GATEWAY=192.168.0.1
Guest OS gateway
PBUILDER_UML_IMAGE=${HOME}/uml-image
Guest OS file system image.
UML_MOUNT_TMPFS=no
Whether to mount tmpfs inside the guest image. This is probably mostly useless.
BUILDPLACE=${HOME}/tmp/
The location which build will take place. pbuilder-user-mode-linux will place temporary COW files to there. The user running UML
needs to be able to access that directory.
UML_MEM=128
The amount of memory allowed for UML. Give more value to here.
UML_HOSTNAME=uml-host
The hostname for the UML.
The hostname should be available in /etc/hosts so that hostname -f will be able to return the FQDN.
UML_BUILDRESULT=/directory/of/build/result
The directory where build result of pbuilder-user-mode-linux is stored.
ROOTSTRAP_IMAGESIZE=size-in-megabytes
The size, in MB, of the disk iamge to create. Defaults to 1000.
NOTES
It is advised to set APTCACHEHARDLINK to no in ~/.pbuilderrc. see pbuilderrc(5) for details.
AUTHOR
Initial coding, and main maintenance is done by Junichi Uekawa <dancer@debian.org>.
The homepage is available at http://pbuilder.alioth.debian.org
FILES
/etc/pbuilder/pbuilder-uml.conf, ${HOME}/.pbuilderrc
SEE ALSO
/usr/share/doc/pbuilder/pbuilder-doc.html, pbuilder-user-mode-linux(1), pbuilder(8), pbuilderrc(5), pdebuild(1)
Debian 2003 Jan 8 pbuilder-uml.conf(5)