Commit Graph

1194 Commits

Author SHA1 Message Date
Dangyi Liu
3ec336c06c kdump.sysconfig: add KDUMP_COMMANDLINE_REMOVE
Use KDUMP_COMMANDLINE_REMOVE config instead of hardcode them in
kdumpctl, which makes it possible system admins decide what params to
remove such as "quiet" or other debug flags.

This patch also adds backward compatibility even if an old config is
used. It will behave the same as the old version.

Signed-off-by: Dangyi Liu <dliu@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2015-12-11 15:16:35 +08:00
dyoung@redhat.com
386c6411d2 Add missing prefixes in default sysconfig file
For arches we do not exlictly support, kdumpctl will fail with errors because
kernel can not be found. It is caused by there's no proper KDUMP_IMG prefix
so kernel image can not be found.

Kexec/kdump functionality may simply work, so let's add those prefix in
default sysconfig file thus one can test and use kexec/kdump in Fedora.

Signed-off-by: Dave Young <dyoung@redhat.com>
Reviewed-by: Pratyush Anand <panand@redhat.com>
2015-12-11 15:13:18 +08:00
Dave Young
49b222871a fix bogus date in changelog 2015-11-19 11:30:36 +08:00
Dave Young
d94d7f3ccc Release 2.0.11-2
Rebase makedumpfile 1.5.9

Signed-off-by: Dave Young <dyoung@redhat.com>
2015-11-19 11:23:05 +08:00
Dave Young
1b6121d5d3 Release 2.0.11-1 2015-11-09 10:37:30 +08:00
Dave Young
ee540e62a3 Release 2.0.10-9 2015-10-19 10:39:22 +08:00
Zhou Wenjian
cbe5943f9e kexec-kdump-howto:Add introduction of parallel dumping
Add descriptions of parallel dumping and how to use it.

Signed-off-by: Zhou Wenjian <zhouwj-fnst@cn.fujitsu.com>
Reviewed-by: Pratyush Anand <panand@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2015-10-19 10:37:08 +08:00
Minfei Huang
7f44d3ee37 Remove duplicate prefix path ${initdir}
dracut will place the config in the random path during generating the
initramfs. Remove the duplicate prefix path ${initdir}.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2015-10-19 10:36:37 +08:00
Dave Young
77951bf1d3 Release 2.0.10-8 2015-09-08 14:03:57 +08:00
Dave Young
f85fd280f3 Update kdump anaconda addon
Pulled below commit from Martin Kolman:

commit 0c68135bd14788bc6b3f7f901eb2d2cb8ba76f79
Author: Martin Kolman <martin.kolman@gmail.com>
Date:   Mon Sep 7 14:46:42 2015 +0200

    Don't put options after the %end of the %addon section

    Otherwise the installation describing kickstart will not be valid.
    This can resulting in various issues such, as Initial Setup refusing
    to run due to invalid kickstart file.
2015-09-08 14:02:19 +08:00
Dangyi Liu
088c2b2a14 kdumpctl: Remove slub_debug from cmdline
slub_debug parameter enables debug for slub, making each object take
more memory than normal. During a typical kdump, "slub_debug=FZPU" will
cost about 33MB additional memory. If users really want to enable this
parameter, they should specify it in KDUMP_COMMANDLINE_APPEND.

Signed-off-by: Dangyi Liu <dliu@redhat.com>
2015-08-24 10:04:52 +08:00
Dave Young
0c5372e80b Release 2.0.10-7 2015-08-19 14:18:57 +08:00
Dangyi Liu
37dc7c286c kdumpctl: Add man page for kdumpctl
kdumpctl is useful sometimes when users want to debug or setup ssh key
authentication. So add a man page for it.

Signed-off-by: Dangyi Liu <dliu@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Reviewed-by: Pratyush Anand <panand@redhat.com>
2015-08-19 14:15:34 +08:00
Baoquan He
54747162a3 Release 2.0.10-6 2015-08-13 15:55:08 +08:00
Dangyi Liu
97c5d890b2 mkdumprd: Remove ifcfg from dracut's modules
Ifcfg depends on network module, which is quite large and useless
when using a local dump target. Also we don't really need ifcfg to
setup network interfaces. So just remove it.

On fedora22, the uncompressed dumprd would decrease about 20MB when
using a local dump target. A regression testing is also conducted with
targets of nfs and ssh.

Signed-off-by: Dangyi Liu <dliu@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
2015-08-13 15:52:55 +08:00
Minfei Huang
b57fd97ba5 module-setup: Choose the first matched gateway in kdump_static_ip
The system may have multiple default route entry. Following is an
example to show the details.

 # ip -6 route list dev eth0
2620:52:0:1040::/64  proto kernel  metric 256  expires 2591978sec fe80::/64  proto kernel  metric 256
default via fe80:52:0:1040::1  proto ra  metric 1024  expires 1778sec hoplimit 64
default via fe80:52:0:1040::2  proto ra  metric 1024  expires 1778sec hoplimit 64

Choose the first matched entry.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
2015-08-13 15:51:30 +08:00
Minfei Huang
e8e5a6a2d1 module-setup: Add permanent option to detect static ip address or not
Dracut will die in the situation that dracut detects to use dhcp to
setup ip address, but kdump passes the ip address to it.

In commit 7ea50dc7a3, we start to use
option permanent to get the ip address in kdump_static_ip. If the
network is setuped by static, we will get the ip address, otherwise
getting none.

In commit c994a80698 which it used to
support ipv6 protocol, I miss the option permanent.

This patch is not a fixing patch, just pulls back something to make
kdump work as original.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2015-08-13 15:49:53 +08:00
Dave Young
4a505f62a9 Release 2.0.10-5 2015-08-04 13:32:53 +08:00
Dave Young
579e1725d0 Update kdump addon
Moving isys.total_memory() call to class method to avoid installation hangs.
It is possible because totoal_memory will call log.info which need log lock.
but some loging function need import gettext module which need import lock.
Thus deadlock could happen.

Moved isys.total_memory callback to class method instead.
2015-08-04 13:28:53 +08:00
Dave Young
87d25d54e5 Release 2.0.10-4 2015-07-28 12:47:50 +08:00
Minfei Huang
ea13e7ab98 dracut-module-setup: Enhance ISCSI to support ipv6 protocol
Due to the different format between ipv4 and ipv6 protocol, quote the
ipv6 address with bracket "[]" to make dracut notify.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2015-07-28 12:42:17 +08:00
Minfei Huang
2ba32c6ccf dracut-module-setup: Prefer ipv4 address as the hostname address
Kdump will parse the hostname to get the ip address, if hostname is
specfied in /etc/kdump.conf. We will get the ip address(ipv4 or ipv6,
according to the DNS server) by using "getent hosts".

For now, it is more reasonable that we shall get all of the ip
address(including ipv4 and ipv6 address) which point to the hostname by
using "getent ahosts". And we will prefer to use the ipv4 address, if
both ipv4 and ipv6 address work.

The reason why we choose the ipv4 as preferred address is to solve the
issue kdump will fail to connect the hostname machine(parsed as ipv6
address), due to the DNS server is ipv4 address in 2nd kernel.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2015-07-28 12:42:17 +08:00
Minfei Huang
c994a80698 dracut-module-setup: Support the network for ipv6 protocol
Previously, Kdump will save route to setup the network route in the 2nd
kernel for ipv4 protocol. To support ipv6 protocol, make Kdump fetch
correct nexthop, since the ruturning format is different.

In order to enhance kdump to support ipv6, support the static ip for
ipv6 protocol, which ipv4 has supported already.

Introduce a new lib function get_remote_host which is used to factor out
the ip address(ipv4 or ipv6) and hostname in /etc/kdump.conf.

Introduce a new lib function is_ipv6_address which is used to make sure
whether the passed ip address is ipv4 or ipv6.

Introduce a new lib function is_hostname which is used to confirm
whether the passed parameter is hostname, not the ip address.

Introduce a new function get_ip_route_field which is used to factor out
the specified string in ip route info.

Due to the different format between ipv4 and ipv6 protocol, quote the
ipv6 address with bracket "[]" to make dracut notify.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2015-07-28 12:42:17 +08:00
Minfei Huang
edec8a8266 dracut-kdump: Use the first filtered ip address as dump directory
For now, Kdump will use ipv4 address as dump directory, and it works, if
ipv4 is enabled.

Once Kdump start to support ipv6 protocol, we may only setup the ipv6
address exclusively. Modify the code to make Kdump work in either ipv4
and ipv6 protocol.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2015-07-28 12:42:17 +08:00
Minfei Huang
51cfe4f81c dracut-module-setup: Apply the manual DNS to the 2nd kernel
Now Kdump will ingore the DNS config in /etc/resolv.conf, when it
generates the initram. And most users do not concern about this issue,
because they never use deployment tools to configure machines
environment, like puppet.

It is more convenient to add the DNS config to /etc/resolv.conf for
people who use deployment tools to configure machines concurrently.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
2015-07-28 12:41:45 +08:00
Dave Young
a75b17ef91 watchdog: load iTCO_wdt early in cmdline hook
We have added *wdt in kdump initramfs, but to improve it more we can do below
(1) load wdt drivers as early as possible so that we can save time before wdt timeout
    some drivers like iTCO_wdt can stop the watchdog while driver initialization, so
    it can give more chance for kdump.
    It can save time especially in case some drivers take long time to init, like
    some storage and networking cards.
(2) add only used wdt drivers in kdump initrd instead of add *wdt
    wdt driver layer need a change so that we can get the proper driver name from
    /dev/watchdog. Question to this is are we sure 1st kernel use /dev/watchdog
    instead of /dev/watchdog1? It need more investigation.
(3) in case a driver can not stop (nowayout?) during module_init, we need load it
    as early as possible and kick the watchdog. Likely we can use systemd default
    watchdog functionality.

This patch is about to address (1), and specially for iTCO_wdt, we only tested
iTCO_wdt, thus in this patch only add this driver, need investigate on other drivers
later to see if other drivers works in this way.

Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Minfei Huang <mhuang@redhat.com>
2015-07-28 12:35:54 +08:00
Dave Young
970cb6124f Release 2.0.10-3 2015-07-23 10:56:36 +08:00
Dave Young
67b4f6ba91 Update kdump addon
Updated kdump addon icon again, Máirín Duffy designed a better icon,
it shows a little blip in a heart beat with a magnifying class examining
it, it uses components of the gnome-symbolic-theme so it would match the
other icons in the hub.
2015-07-23 10:51:47 +08:00
Dave Young
70a4c96523 Revert "save exact route to remote target"
This reverts commit a68bb200f8.

Conflicts:
	dracut-module-setup.sh

Manually remove get_route function
2015-07-13 17:17:32 +08:00
Dave Young
6b7df5b0b3 Revert "module-setup: Use proper ethernet device name in 2nd kernel"
This reverts commit 08809fb0c7.
2015-07-13 17:15:46 +08:00
Dave Young
5380af665d Release 2.0.10-2
Update kdump addon icon
2015-07-13 11:08:55 +08:00
Dave Young
35dd19e611 Release 2.0.10-1
Rebase kexec-tools to 2.0.10
Drop unused 2.0.7 patches in git tree
2015-07-09 09:38:30 +08:00
Dave Young
2b76613fc9 Rebase eppic library to upstream 050615
Upstream tree: https://code.google.com/p/eppic/
There's below changes vs previous version:
1) fix compile issues with gdb 7.6
2) fix compile warnings
3) Support for ARM64

Tested by Pratyush.

Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Pratyush Anand <panand@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
2015-07-09 09:29:10 +08:00
Qiao Zhao
daccbbe3af Enhance kdump.conf "default" parameters check.
According to man page, default option can only use reboot, halt, poweroff,
shell and dump_to_rootfs as parameter.
Currently, if configuration kdump.conf is:
------
path /var/crash
core_collector makedumpfile -nosuchfile
default no_such_option
------
kdump service still can be started.

Adding function "check_default_config" to kdumpctl file can solve
this problem.

I have tested this patch in my test machine(Fedora-21).

v1 --> v2
Baoquan He point "check_default_config" function should be call in
"check_config" function.
Wang Li point if kdump.conf donesn't configure the "default" option,
kdump serivce will fail.

Signed-off-by: Qiao Zhao <qzhao@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Acked-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2015-07-07 16:11:19 +08:00
Dave Young
e9ee834802 Release 2.0.9-2
Koji build add extra cflags automaticlly, this cause wrong kexec purgatory
Pre Peter Robinson's suggestion, add below in spec file:
%undefine _hardened_build

Also removes extra -FPIC ldflags since there's no such options in upstream makedumpfile.

Resolves: bz1236456

Signed-off-by: Dave Young <dyoung@redhat.com>
2015-07-02 10:27:48 +08:00
Dave Young
d74d13c425 Release 2.0.9-1
Rebase kexec-tools 2.0.9
2015-06-26 10:15:57 +08:00
Dave Young
8219fcf725 Rebase makedumpfile 1.5.8 2015-06-26 10:14:52 +08:00
Dave Young
977d20cd50 Revert commit 63476302
The ipv6 patchset is still under review, previously the commit was mistakenly
merged, thus let's revert it.

Revert "dracut-kdump: Use proper the known hosts entry in the file known_hosts"

This reverts commit 63476302aa.

Conflicts:
	kdump-lib.sh

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Signed-off-by: Dave Young <dyoung@redhat.com>
2015-06-26 10:14:14 +08:00
Dennis Gilmore
3ac7dddb2b - Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild 2015-06-17 13:07:57 +00:00
Dave Young
f58228adba Release 2.0.8-13
Update kdump icon again, Xiaoxue created a new one with different color
so that we have similar color theme with other components.

Also add kdump.svg to rpm %files section

Otherwise rpmbuild will not package it in rpm
2015-06-11 14:19:36 +08:00
Dave Young
ed6b29ede9 Fix bogus date in last commit for 2.0.8-12 2015-06-10 10:56:01 +08:00
Dave Young
99f580dffd Release 2.0.8-12 2015-06-10 10:50:31 +08:00
Dave Young
507abc9e30 Update kdump addon
changes: update kdump spoke icon
several fixes from M4rtinK
2015-06-10 10:48:49 +08:00
Baoquan He
115092ef8e Release 2.0.8-11 2015-06-03 21:13:05 +08:00
Chao Fan
86b251765e make kdump work when kernel crash after shutdown
In RHEL6, vmcore file was created if panic occurred during shutdown. This was
very useful for analyzing problems during the shutdown sequence.

However, in RHEL7, vmcore will not be created after kdump service is stopped.
This will make it very difficult to solve problems during shutodwn.

The reason why kdump fails to dump vmcore is kdump is stopped too early during
the power is off.

If add "DefaultDependencies=no" to the [Unit] of kdump.service , kdump will
not be stopped by systemd after shutdown command.

The manpage of systemd.unit about the DefaultDependencies:
If true, (the default), a few default dependencies will implicitly be created
for the unit. The actual dependencies created depend on the unit type. For
example, for service units, these dependencies ensure that the service is
started only after basic system initialization is completed and is properly
terminated on system shutdown.

The manpage about basic.target:
A special target unit covering basic boot-up.
systemd automatically adds dependencies of the types Requires= and After= for
this target unit to all services (except for those with DefaultDependencies=no).
Usually this should pull-in all mount points, swap devices, sockets, timers,
and path units and other basic initialization necessary for general purpose
daemons.

So "DefaultDependencies=no" can keep kdump not stopped too early. But to make
it start when power on, add After=basic.target will be better.
The systemd-devel mailed to me:  using DefaultDependencies=no but also
After=basic.target will make sure the service isn't started too early (but kept
until systemd's final process killing spree).

Signed-off-by: Chao Fan <cfan@redhat.com>
Acked-by: Minfei Huang <mhuang@redhat.com>
2015-06-03 21:10:34 +08:00
Li Wang
0aada50b66 Disable transparent hugepages in second kernel
Transparent hugepages are on by default. Disable it in kdump kernel by
adding the parameter 'transparent_hugepage=never'. This might help us
with some of the memory issues we are facing.

From my test on two arch, not only there are no any bad effect on saving vmcore
after turn off THP, but also we can get more 'MemAvailable:' in the kdump kernel.

1)x86_64
without the parameter
=====================
kdump:/# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.10.0-229.el7.x86_64 root=/dev/mapper/rhel_ibm--x3250m4--01-root ro rd.lvm.lv=rhel_ibm-x3250m4-01/swap console=ttyS0,115200n8 rd.lvm.lv=rhel_ibm-x3250m4-01/root LANG=en_US.UTF-8 irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off numa=off udev.children-max=2 panic=10 rootflags=nofail acpi_no_memhotplug disable_cpu_apicid=0 elfcorehdr=869764K

kdump:/# cat /proc/meminfo
MemTotal:         145492 kB
MemFree:           68284 kB
MemAvailable:     111632 kB  <<------
Buffers:              36 kB
Cached:            48184 kB
...

added the parameter
=====================
kdump:/# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.10.0-229.el7.x86_64 root=/dev/mapper/rhel_ibm--x3250m4--01-root ro rd.lvm.lv=rhel_ibm-x3250m4-01/swap console=ttyS0,115200n8 rd.lvm.lv=rhel_ibm-x3250m4-01/root LANG=en_US.UTF-8 irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off numa=off udev.children-max=2 panic=10 rootflags=nofail acpi_no_memhotplug transparent_hugepage=never disable_cpu_apicid=0 elfcorehdr=869764K

kdump:/# cat /proc/meminfo
MemTotal:         145492 kB
MemFree:           68388 kB
MemAvailable:     111728 kB  <<-------
...
VmallocChunk:   34359659520 kB
HardwareCorrupted:     0 kB
AnonHugePages:         0 kB
...

2)ppc64
without the parameter
====================
kdump:/# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.10.0-229.el7.ppc64 root=/dev/mapper/rhel_ibm--p8--05--lp6-root ro rd.lvm.lv=rhel_ibm-p8-05-lp6/root rd.lvm.lv=rhel_ibm-p8-05-lp6/swap LANG=en_US.UTF-8 irqpoll maxcpus=1 noirqdistrib reset_devices cgroup_disable=memory numa=off udev.children-max=2 ehea.use_mcs=0 panic=10 rootflags=nofail kvm_cma_resv_ratio=0 elfcorehdr=154880K

kdump:/# cat /proc/meminfo
MemTotal:         480832 kB
MemFree:          293952 kB
MemAvailable:     427840 kB  <<--------
mallocUsed:       23680 kB
VmallocChunk:   8589901824 kB
HardwareCorrupted:     0 kB
AnonHugePages:         0 kB
...

added the parameter
===================
kdump:/# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.10.0-229.el7.ppc64 root=/dev/mapper/rhel_ibm--p8--05--lp6-root ro rd.lvm.lv=rhel_ibm-p8-05-lp6/root rd.lvm.lv=rhel_ibm-p8-05-lp6/swap LANG=en_US.UTF-8 irqpoll maxcpus=1 noirqdistrib reset_devices cgroup_disable=memory numa=off udev.children-max=2 ehea.use_mcs=0 panic=10 rootflags=nofail kvm_cma_resv_ratio=0 transparent_hugepage=never elfcorehdr=154880K

kdump:/# cat /proc/meminfo
MemTotal:         480832 kB
MemFree:          294592 kB
MemAvailable:     428480 kB  <<-------
...
HugePages_Total:       0

Signed-off-by: Li Wang <liwang@redhat.com>
Acked-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Baoquan He <bhe@redaht.com>
2015-06-03 21:07:22 +08:00
Qiao Zhao
e4a99f7523 Filtered out "noauto" options in 2nd kernel fstab
Customer found when specify "noauto" option in fstab for nfs mount,
dump failed.

The reason is if "noauto" option is specified in fstab, the mount entry
in fstab related to dump target will passed to dracut and stored in
kdump initrd. Then during kdump kernel boots this entry containing
"noauto" will be ignored by mount service. This cause dump failing.
In fact with "noauto" not only nfs dump will fail, non-root disk dump
will fail too. root disk dump can dump successfully since root disk can
always be mounted by systemd.

So now "noauto" need be filtered out when the fstab entry corresponding
to dump target contains "noauto".

Changelog:
v4 -> v5
code comment is not clear enough. supplement it.

Signed-off-by: Qiao Zhao <qzhao@redhat.com>
Acked-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
2015-06-03 21:05:56 +08:00
Baoquan He
0a9851e2fc Release 2.0.8-10 2015-04-21 11:15:50 +08:00
Baoquan He
eb8034e067 add fPIC to makefumpfile CFLAGS to support hardening
Beginning from f23 program hardening become the defaults for all packages.
Details can be checked from below link:
https://fedoraproject.org/wiki/Changes/Harden_All_Packages

Adding this to makedumpfile CFLAGS, otherwise makedumpfile building will
fail on koji.

Signed-off-by: Baoquan He <bhe@redhat.com>
2015-04-21 11:13:33 +08:00
Minfei Huang
25afa6ee5f dracut-module-setup: Enhance kdump to support the bind mounted feature in Atomic
Kdump will dump the vmcore in incorrect target directory, if the target
is bind mounted.

As commented in the previous patch, we can construct the real path in
Atomic, which contains two part, one bind mounted path, the other
specified dump path. Then replace the path as the real path in
/etc/kdump.conf.

findmnt can find the real path for nfs, although the path is in bind
mode. So nfs can work well with the path in bind mode.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
2015-04-21 10:58:30 +08:00