http://bugzilla.novell.com/show_bug.cgi?id=465039
http://bugzilla.novell.com/show_bug.cgi?id=465039#c44
--- Comment #44 from Michal Veselenyi 2009-11-23 21:16:24 UTC ---
So here I am back. New 2.6.31.5 suse kernel does hand also in ksoftirqd. I
downloaded vanilla kernel and took the .config from
/usr/src/linux-2.6.31.5-0.1-obj/i386/desktop/.config
Recompiled and booted. The result is very good: After 20 days not a single
ksoftirqd problem.
I looked at the 2 .config files and there are some few differences.
Here is roughly what is activated in opensuse kernel (comparing to vanilla):
CONFIG_SUSE_KERNEL=y
CONFIG_SPLIT_PACKAGE=y
CONFIG_NF_CONNTRACK_SLP=m
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_CIPHER_TWOFISH=m
CONFIG_DM_RAID=m
CONFIG_DM_RAID45=m
CONFIG_TOUCHSCREEN_ELOUSB=m
CONFIG_CRASHER=m
CONFIG_BOOTSPLASH=y
CONFIG_SND_HDA_PATCH_LOADER=y
CONFIG_SND_HDA_CODEC_CIRRUS=y
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_EXT3_DEFAULTS_TO_BARRIERS_ENABLED=y
CONFIG_EXT3_FS_NFS4ACL=y
CONFIG_REISERFS_DEFAULTS_TO_BARRIERS_ENABLED=y
CONFIG_FS_NFS4ACL=y
CONFIG_XFS_DMAPI=m
CONFIG_DMAPI=m
CONFIG_NOVFS=m
CONFIG_UNWIND_INFO=y
CONFIG_STACK_UNWIND=y
CONFIG_KDB=y
CONFIG_KDB_MODULES=m
CONFIG_KDB_OFF=y
CONFIG_KDB_CONTINUE_CATASTROPHIC=0
CONFIG_KDB_USB=y
CONFIG_KDB_KDUMP=y
CONFIG_SECURITY_DEFAULT="apparmor"
CONFIG_SECURITY_APPARMOR=y
CONFIG_SECURITY_APPARMOR_NETWORK=y
CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE=1
CONFIG_SECURITY_APPARMOR_DISABLE=y
CONFIG_KVM_KMP=y
What I found in my config:
CONFIG_SCHED_OMIT_FRAME_POINTER=y
No XEN is present in any config.
I just copied .config file to vanilla kernel, started menuconfig and exited.
Could it be some suse patches could cause the ksoftirqd problems?
I'm a bit concerned about lots of new FS options and anything that contains DMA
in the name. Also I see there is something new about SND_HDA (intel hda? -
which I have).
I think I'll try do compile directly suse kernel with the i386/desktop/.config
and eventually try to disable all listed options above - and see what happens.
regards.
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