We met a problem that the kdump emergency service failed to
start when the target dump timeout(we passed "rd.timeout=30"
to kdump), it reported "Transaction is destructive" messages:
[ TIME ] Timed out waiting for device dev-mapper-fedora\x2droot.device.
[DEPEND] Dependency failed for Initrd Root Device.
[ SKIP ] Ordering cycle found, skipping System Initialization
[DEPEND] Dependency failed for /sysroot.
[DEPEND] Dependency failed for Initrd Root File System.
[DEPEND] Dependency failed for Reload Configuration from the Real Root.
[ SKIP ] Ordering cycle found, skipping System Initialization
[ SKIP ] Ordering cycle found, skipping Initrd Default Target
[DEPEND] Dependency failed for File System Check on /dev/mapper/fedora-root.
[ OK ] Reached target Initrd File Systems.
[ OK ] Stopped dracut pre-udev hook.
[ OK ] Stopped dracut cmdline hook.
Starting Setup Virtual Console...
Starting Kdump Emergency...
[ OK ] Reached target Initrd Default Target.
[ OK ] Stopped dracut initqueue hook.
Failed to start kdump-error-handler.service: Transaction is destructive.
See system logs and 'systemctl status kdump-error-handler.service' for details.
[FAILED] Failed to start Kdump Emergency.
See 'systemctl status emergency.service' for details.
[DEPEND] Dependency failed for Emergency Mode.
This is because in case of root failure, initrd-root-fs.target
will trigger systemd emergency target which requires the systemd
emergency service actually is kdump-emergency.service, then our
kdump-emergency.service starts kdump-error-handler.service with
"systemctl isolate"(see 99kdumpbase/kdump-emergency.service, we
replace systemd's with this one under kdump).
This will lead to systemd two contradictable jobs queued as an
atomic transaction:
job 1) the emergency service gets started by initrd-root-fs.target
job 2) the emergency service gets stopped due to "systemctl isolate"
thereby throwing "Transaction is destructive".
In order to solve it, we can utilize "IgnoreOnIsolate=yes" for both
kdump-emergency.service and kdump-emergency.target. Unit with attribute
"IgnoreOnIsolate=yes" won't be stopped when isolating another unit,
they can keep going as expected in case be triggered by any failure.
We add kdump-emergency.target dedicated to kdump the similar way
as did for kdump-emergency.service(i.e. will replace systemd's
emergency.target with kdump-emergency.target under kdump), and
adds "IgnoreOnIsolate=yes" into both of them.
Signed-off-by: Xunlei Pang <xlpang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Acked-by: Pratyush Anand <panand@redhat.com>
[bhe: improve the patch log about IgnoreOnIsolate="]
Patches have been taken from kexec-tools and makedumpfile to fix issue
with `makedumpfile --mem-usage /proc/kcore`.
Two of the patches is from kexec-tools and rest are from makedumpfile.
All the patches have been acked upstream and applies without conflict.
Kexec-tools patches:
(kexec-tools-2.0.14-x86-x86_64-Fix-format-warning-with-die.patch), which
fixes koji build issue.
kexec-tools-2.0.14-build_mem_phdrs-check-if-p_paddr-is-invalid.patch fixes
the regresssion caused by kernel /proc/kcore fix to use -1 as default value
of p_paddr for pt_loads. Without his patch kexec -p will fail with latest
kernel.
Other makedumpfile patches are backported to support --mem-usage while
kernel kaslr being enabled. Details please see the patch log of the individual
patches.
All the patches are backport of upstream commits.
Patches has been tested with kernel 4.11.0-0.rc1.git0.1.fc26.x86_64.
# makedumpfile --mem-usage /proc/kcore -f
The kernel version is not supported.
The makedumpfile operation may be incomplete.
TYPE PAGES EXCLUDABLE DESCRIPTION
----------------------------------------------------------------------
ZERO 1960 yes Pages filled
with zero
NON_PRI_CACHE 22850 yes Cache pages
without private flag
PRI_CACHE 1517 yes Cache pages with
private flag
USER 32522 yes User process
pages
FREE 1898981 yes Free pages
KERN_DATA 78721 no Dumpable kernel
data
page size: 4096
Total pages on system: 2036551
Total size on system: 8341712896 Byte
We won't need to pass -f once fedora kernel is rebased with v4.12.
Signed-off-by: Pratyush Anand <panand@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Resolves: bz1399436
Since currently crashkernel= will be handled in kdump anaconda addon
we can safely remove rhcrashkernel-param callback.
Signed-off-by: Tong Li <tonli@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Backport upstream kexec-tools commit for correct kaslr page_offset value
commit 9f62cbddddfc93d78d9aafbddf3e1208cb242f7b
Author: Thomas Garnier <thgarnie@google.com>
Date: Tue Sep 13 15:10:05 2016 +0800
kexec/arch/i386: Add support for KASLR memory randomization
Multiple changes were made on KASLR (right now in linux-next). One of
them is randomizing the virtual address of the physical mapping, vmalloc
and vmemmap memory sections. It breaks kdump ability to read physical
memory.
This change identifies if KASLR memories randomization is used by
checking if the page_offset_base variable exists. It search for the
correct PAGE_OFFSET value by looking at the loaded memory section and
find the lowest aligned on PUD (the randomization level).
Related commits on linux-next:
- 0483e1fa6e09d4948272680f691dccb1edb9677f: Base for randomization
- 021182e52fe01c1f7b126f97fd6ba048dc4234fd: Enable for PAGE_OFFSET
Signed-off-by: Thomas Garnier <thgarnie@google.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
This is a short document about how to setup kdump on live images. All
steps were tested on Fedora 25 Alpha LiveCD and saved vmcore captured
by kdump to a USB stick successfully.
Signed-off-by: Tong Li <tonli@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
V1 of the KASLR patch which was backported in 2.0.13-6 had wrong
calculation for page_offset. This patch takes the correct difference.
Signed-off-by: Pratyush Anand <panand@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Fix Bug 925630 - kexec-tools: support for arm64
https://bugzilla.redhat.com/show_bug.cgi?id=925630
involves three things:
1. back porting upstream code to enable the function of kexec-tools on arm64
patchset backported from upstream:
commit abdfe97736f89d9bc73662b9134604b0229a599e
commit 522df5f7217fda01ece3f6ac3e9987b0320c2bb0
commit 217bcc00c9309416a6c6cd0584196559d28a9259
2. fix the arm related building issue by using autoreconf in spec file
3. patches to fix the issue of higher version gcc used by koji (not upstrem yet,
and the corresponding fix in kernel side is in other package)
kexec-tools-2.0.13-arm64-Add-support-for-additional-relocations-in-the-kexec-purgatory-code.patch
kexec-tools-2.0.13-arm64-Add-support-of-R_AARCH64_PREL32-relocation-in-.patch
[panand: apply patches in 3 of above paragraph]
Signed-off-by: Pingfan Liu <piliu@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Acked-by: Pratyush Anand <panand@redhat.com>
Since in Fedora 25 kernel kaslr is enabled (x86) but makedumpfile can not save
a correct vmcore, so it means kdump default setup will not work.
Pratyush posted a patch series to upstream which can fix the issue. Let's merge them in F25, will get the normal fixes after it being merged in upstream, we hopefully can rebase soon in rawhide.
This is an urgent fix for F25 since F25 freeze is this week.
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Pratyush Anand <panand@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Fedora dracut-network version >= 044-117 must be installed to work with
this set of kexec-tools patches. Therefore adding dependency for them.
Acked-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Xunlei Pang <xlpang@redhat.com>
Fedora dracut version >= 044-75 must be installed to work with this set of
kexec-tools patches. Therefore adding dependency for them.
Signed-off-by: Pratyush Anand <panand@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Use our own code to get system total memory from /proc/meminfo because the
callback to pyanaconda sometimes cause installation hangs.
Signed-off-by: Dave Young <dyoung@redhat.com>
Fedora bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1310495
kexec kernel hangs in ppc64le test. It is caused by kexec does not support
abi v2 properly.
Backport upstream patches below fixes the issue:
There is no code conflicts.
commit 3debb8cf3272216119cb2e59a4963ce3c18fe8e3
Author: Alan Modra <amodra@gmail.com>
Date: Fri Feb 26 18:06:15 2016 +1100
Properly align powerpc64 .toc
gcc leaves .toc byte aligned, relying on the linker to align the section.
* kexec/arch/ppc64/kexec-elf-rel-ppc64.c (machine_verify_elf_rel):
Fudge alignment of .toc section.
Signed-off-by: Alan Modra <amodra@gmail.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Tested-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
commit 1e423dc297d10eb7ff25c829d2856ef12fc81d77
Author: Anton Blanchard <anton@samba.org>
Date: Fri Feb 26 18:04:16 2016 +1100
ppc64: purgatory: Handle local symbols in ELF ABIv2
The PowerPC64 ELF ABIv2 has the concept of global and local symbols
and information on this is encoded in sym->st_other. When doing a
R_PPC64_REL24 branch we want to hit the local entry point, so adjust
it as necessary.
Signed-off-by: Anton Blanchard <anton@samba.org>
Tested-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
commit 4a2ae3a39c64dc43e9d094be9541253234ff4822
Author: Anton Blanchard <anton@samba.org>
Date: Fri Feb 26 18:03:11 2016 +1100
Pass struct mem_sym into machine_apply_elf_rel()
On PowerPC64 ABIv2 we need to look at the symbol to determine
if it has a local entry point. Pass struct mem_sym into
machine_apply_elf_rel() so we can.
Signed-off-by: Anton Blanchard <anton@samba.org>
Tested-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Xunlei Pang <xlpang@redhat.com>
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.
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>
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.
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.
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>
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>
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
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>
I forgot to add kdump.sysconfig.ppc64le to "Source" directive to
kexec-tools.spec. And on ppc64le, the default kdump.sysconfig will be
installed to /etc/sysconfig/kdump. Now fix it.
Signed-off-by: WANG Chao <chaowang@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Remove this package and put eppic_makedumpfile.so and its sample
scripts in kexec-tools package.
makedumpfile does dlopen() on eppic_makedumpfile.so and that does not
enforce any choice. One could either ship it in kexec-tools package or
in a subpackage. Both will work.
The real reason was that code for eppic_makedumpfile.so
(extension_eppic.c) and some eppic scripts are in upstream makedumpfile
project. And that project is distributed as part of kexec-tools package.
Now breaking down that makedumpfile in two parts and shipping all
eppic specific bits in a separate subpackage was creating confusion
everytime we did some changes.
So to avoid that confusion and to keep all of the makedumpfile related
bits in a single package, this change is being done.
Signed-off-by: WANG Chao <chaowang@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
kexec-tools expects "powerpc64le" to pass to configure.ac, while we
passed ppc64le. Otherwise the build fails. Now fix it like we did for
ppc64.
Signed-off-by: WANG Chao <chaowang@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Upstream makedumpfile contains some sample eppic scripts for reference.
Now pull the whole scripts directory into kexec-tools-eppic package.
Signed-off-by: WANG Chao <chaowang@redhat.com>
Backport the following commit from kexec-tools upstream:
commit 45b33eb
Author: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Date: Fri Jul 25 17:07:49 2014 +0200
ppc64/kdump: Fix ELF header endianess
The ELF header created among the loading of the kdump kernel should be
flagged using the current endianess and not always as big endian.
Without this patch the data exposed in /proc/vmcore are not readable when
running in LE mode.
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
This is part of the work to enable ppc64le.
Signed-off-by: WANG Chao <chaowang@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
