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-rw-r--r--meta/recipes-kernel/kexec/kexec-tools.inc5
-rwxr-xr-xmeta/recipes-kernel/kexec/kexec-tools/kdump163
-rw-r--r--meta/recipes-kernel/kexec/kexec-tools/kdump.conf18
-rw-r--r--meta/recipes-kernel/kexec/kexec-tools_2.0.10.bb8
4 files changed, 193 insertions, 1 deletions
diff --git a/meta/recipes-kernel/kexec/kexec-tools.inc b/meta/recipes-kernel/kexec/kexec-tools.inc
index 7797a25738..758a3a78b8 100644
--- a/meta/recipes-kernel/kexec/kexec-tools.inc
+++ b/meta/recipes-kernel/kexec/kexec-tools.inc
@@ -8,7 +8,10 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=ea5bed2f60d357618ca161ad539f7c0a \
8 file://kexec/kexec.c;beginline=1;endline=20;md5=af10f6ae4a8715965e648aa687ad3e09" 8 file://kexec/kexec.c;beginline=1;endline=20;md5=af10f6ae4a8715965e648aa687ad3e09"
9DEPENDS = "zlib xz" 9DEPENDS = "zlib xz"
10 10
11SRC_URI = "${KERNELORG_MIRROR}/linux/utils/kernel/kexec/kexec-tools-${PV}.tar.gz" 11SRC_URI = "${KERNELORG_MIRROR}/linux/utils/kernel/kexec/kexec-tools-${PV}.tar.gz \
12 file://kdump \
13 file://kdump.conf \
14"
12 15
13PR = "r1" 16PR = "r1"
14 17
diff --git a/meta/recipes-kernel/kexec/kexec-tools/kdump b/meta/recipes-kernel/kexec/kexec-tools/kdump
new file mode 100755
index 0000000000..3fb133fb35
--- /dev/null
+++ b/meta/recipes-kernel/kexec/kexec-tools/kdump
@@ -0,0 +1,163 @@
1#! /bin/sh
2#
3# kdump
4#
5# Description: The kdump script provides the support:
6# 1. Load a kdump kernel image into memory;
7# 2. Copy away vmcore when system panic.
8#
9
10#default
11KDUMP_KVER="`uname -r`"
12KDUMP_KIMAGE="/boot/bzImage-${KDUMP_KVER}"
13KDUMP_CMDLINE="`cat /proc/cmdline`"
14KDUMP_CMDLINE_APPEND="kdump_needed maxcpus=1 irqpoll reset_devices"
15KDUMP_VMCORE_PATH="/var/crash/`date +"%Y-%m-%d"`"
16
17#get right kernel image
18march="`uname -m`"
19case ${march} in
20 x86*|i?86)
21 ;;
22 *)
23 KDUMP_KIMAGE="/boot/uImage-${KDUMP_KVER}"
24 ;;
25esac
26
27KEXEC=usr/sbin/kexec
28KEXEC_ARGS="-p"
29
30MAKEDUMPFILE=/usr/bin/makedumpfile
31MAKEDUMPFILE_ARGS="-E -d 1"
32
33LOGGER="logger -p info -t kdump"
34
35if [ -f /etc/sysconfig/kdump.conf ]; then
36 . /etc/sysconfig/kdump.conf
37fi
38
39do_check()
40{
41 #check makedumpfile
42 if [ ! -e ${MAKEDUMPFILE} -o ! -x ${MAKEDUMPFILE} ] ;then
43 echo "No makedumpfile found."
44 return 1;
45 fi
46
47 #check kexec
48 if [ ! -e ${KEXEC} -o ! -x ${KEXEC} ] ;then
49 echo "No kexec found."
50 return 1;
51 fi
52
53 #check whether kdump kernel image exists on the system
54 if [ ! -f ${KDUMP_KIMAGE} ]; then
55 echo "No kdump kernel image found."
56 return 1
57 fi
58}
59
60do_save_vmcore()
61{
62 mkdir -p ${KDUMP_VMCORE_PATH}
63 echo "Saving a vmcore to ${KDUMP_VMCORE_PATH}."
64
65 ${MAKEDUMPFILE} ${MAKEDUMPFILE_ARGS} /proc/vmcore ${KDUMP_VMCORE_PATH}/vmcore-"`date +"%H:%M:%S"`"
66# cp --sparse=always /proc/vmcore ${KDUMP_VMCORE_PATH}/vmcore-"`date +"%H:%M:%S"`"
67 rc=$?
68 if [ ${rc} == 0 ]; then
69 ${LOGGER} "Saved a vmcore to ${KDUMP_VMCORE_PATH}."
70 else
71 ${LOGGER} "Failed to save vmcore!"
72 fi
73 return ${rc}
74}
75
76do_start()
77{
78 #check file
79 do_check
80
81 #check whether the running kernel supports kdump.
82 if [ ! -e /sys/kernel/kexec_crash_loaded ]; then
83 echo "Kdump isn't supported on the running kernel!!!"
84 ${LOGGER} "Kdump isn't supported on the running kernel!!!"
85 return 1
86 fi
87
88 #check whether kdump kernel image has been loaded
89 rc=`cat /sys/kernel/kexec_crash_loaded`
90 if [ ${rc} != 0 ]; then
91 echo "Kdump is already running.";
92 ${LOGGER} "Kdump is already running."
93 return 0
94 fi
95
96 #check the running kernel cmdline option,insure "crashkenrel=" always set.
97 grep -q crashkernel= /proc/cmdline
98 if [ $? != 0 ]; then
99 echo "Kdump isn't supported on the running kernel,please check boot option!!!"
100 ${LOGGER} "Kdump isn't supported on the running kernel,please check boot option!!!"
101 return 1
102 fi
103
104 #handle kdump cmdline parameters, remove some useless options
105 kcmdline=""
106 for x in `cat /proc/cmdline`; do
107 case $x in
108 crashkernel*)
109 ;;
110 *)
111 kcmdline="${kcmdline} $x"
112 ;;
113 esac
114 done
115
116 KDUMP_CMDLINE="${kcmdline} ${KDUMP_CMDLINE_APPEND}"
117
118 #Load the kdump kernel image
119 ${KEXEC} ${KEXEC_ARGS} "${KDUMP_KIMAGE}" --append="${KDUMP_CMDLINE}"
120 if [ $? != 0 ]; then
121 echo "Failed to load kdump kernel!"
122 ${LOGGER} "Failed to load kdump kernel!"
123 return 1
124 fi
125
126 echo "Kdump started up."
127 ${LOGGER} "Kdump started up."
128}
129
130do_stop()
131{
132 ${KEXEC} -p -u 2>/dev/null
133 if [ $? == 0 ]; then
134 echo "Kdump has been stopped."
135 ${LOGGER} "Kdump has been stopped."
136 else
137 echo "Failed to stop kdump!"
138 ${LOGGER} "Failed to stop kdump!"
139 fi
140}
141
142case "$1" in
143 start)
144 if [ -s /proc/vmcore ]; then
145 do_save_vmcore
146 reboot
147 else
148 do_start
149 fi
150 ;;
151 restart)
152 do_stop
153 do_start
154 ;;
155 stop)
156 do_stop
157 ;;
158 *)
159 echo $"Usage: $0 {start|stop|restart}"
160 exit 1
161esac
162
163exit $?
diff --git a/meta/recipes-kernel/kexec/kexec-tools/kdump.conf b/meta/recipes-kernel/kexec/kexec-tools/kdump.conf
new file mode 100644
index 0000000000..42a2435b96
--- /dev/null
+++ b/meta/recipes-kernel/kexec/kexec-tools/kdump.conf
@@ -0,0 +1,18 @@
1#the kdump kernel version string.
2#KDUMP_KVER="`uname -r`"
3
4#this will be passed to the kdump kernel as kdump kernel command line, it
5#usually comes from /proc/cmdline
6#KDUMP_CMDLINE="`cat /proc/cmdline`"
7
8# append arguments to the kdump commandline
9#KDUMP_CMDLINE_APPEND="kdump_needed maxcpus=1 irqpoll reset_devices"
10
11#the kernel image for kdump
12#KDUMP_KIMAGE="/boot/bzImage-${KDUMP_KVER}"
13
14#Where to save the vmcore
15#KDUMP_VMCORE_PATH="/var/crash/`date +"%Y-%m-%d"`"
16
17#the arguments to makedumpfile
18MAKEDUMPFILE_ARGS="--dump-dmesg -x /boot/vmlinux-`uname -r`"
diff --git a/meta/recipes-kernel/kexec/kexec-tools_2.0.10.bb b/meta/recipes-kernel/kexec/kexec-tools_2.0.10.bb
index ffdb983a41..f21121733f 100644
--- a/meta/recipes-kernel/kexec/kexec-tools_2.0.10.bb
+++ b/meta/recipes-kernel/kexec/kexec-tools_2.0.10.bb
@@ -17,6 +17,14 @@ PACKAGES =+ "kexec kdump vmcore-dmesg"
17ALLOW_EMPTY_${PN} = "1" 17ALLOW_EMPTY_${PN} = "1"
18RRECOMMENDS_${PN} = "kexec kdump vmcore-dmesg" 18RRECOMMENDS_${PN} = "kexec kdump vmcore-dmesg"
19 19
20FILES_${PN} =+ "${sysconfig}/init.d/kdump ${sysconfig}/sysconfig/kdump.conf"
20FILES_kexec = "${sbindir}/kexec" 21FILES_kexec = "${sbindir}/kexec"
21FILES_kdump = "${sbindir}/kdump" 22FILES_kdump = "${sbindir}/kdump"
22FILES_vmcore-dmesg = "${sbindir}/vmcore-dmesg" 23FILES_vmcore-dmesg = "${sbindir}/vmcore-dmesg"
24
25do_install_append () {
26 install -d ${D}${sysconfdir}/init.d
27 install -m 0755 ${WORKDIR}/kdump ${D}${sysconfdir}/init.d/kdump
28 install -d ${D}${sysconfdir}/sysconfig
29 install -m 0644 ${WORKDIR}/kdump.conf ${D}${sysconfdir}/sysconfig
30}