Resolves: bz1619122
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1619122
This patch fixes the "Unhandled rela relocation: R_X86_64_PLT32" error
that we are seeing with Fedora 29 (and newer kernels > 4.18) which
trying to run kexec/kdump on x86_64 machines.
The patch is being discussed upstream and has been ACK'ed by Baoquan and
myself (see <https://www.spinics.net/lists/kexec/msg21255.html>) and I
have also tested the same on Fedora 29/rawhide x86_64 machine as well:
Before the patch:
----------------
[root@hp-bl480c-01 ~]# kdumpctl restart
kexec: unloaded kdump kernel
Stopping kdump: [OK]
Unhandled rela relocation: R_X86_64_PLT32
kexec: failed to load kdump kernel
Starting kdump: [FAILED]
After the patch:
---------------
[root@hp-bl480c-01 ~]# kdumpctl restart
kexec: unloaded kdump kernel
Stopping kdump: [OK]
kexec: loaded kdump kernel
Starting kdump: [OK]
Suggested Upstream Fix:
In response to a change in binutils, commit b21ebf2fb4c
(x86: Treat R_X86_64_PLT32 as R_X86_64_PC32) was applied to
the linux kernel during the 4.16 development cycle and has
since been backported to earlier stable kernel series. The
change results in the failure message in $SUBJECT when
rebooting via kexec.
Fix this by replicating the change in kexec.
Signed-off-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Bhupesh Sharma <bhsharma@redhat.com>
Acked-by: Kairui Song <kasong@redhat.com>
Kdump anaconda has been included as a subpackage for a long time, which
is not a good practice, as the anaconda plugin should be built as
noarch and it does not belong to kexec-tools. We have created a new
package 'kdump-anaconda-addon', so remove it here.
The release version should be bumped later so that kdump-anaconda-addon
could mark previous versions as obsoleted.
Signed-off-by: Kairui Song <kasong@redhat.com>
armv7hl build failed because no makedumpfile* built but the latest commit
tries to install them.
Exclude armv7hl in the code chunk.
Signed-off-by: Dave Young <dyoung@redhat.com>
kexec_test seems to be no longer used upstream, so we had introduced
the 'kexec-tools-2.0.3-disable-kexec-test.patch' earlier to disable the
same from fedora kexec-tools as well.
However an earlier patch "Remove obsolete kdump tool" now explicitly
installs needed files via appropriate logic in .spec file, so we can
drop this patch now to reduce the maintenance burden.
Signed-off-by: Bhupesh Sharma <bhsharma@redhat.com>
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1441677
Testing: On x86_64 Fedora machine. After this patch kdump utility and related
man page cannot be found on this machine:
[root@tyan-gt24-09 ~]# which kdump
/usr/bin/which: no kdump in
(/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
[root@tyan-gt24-09 ~]# man kdump
No manual entry for kdump
Update the fedora 'kexec-tools.spec' to not install the obsolete
kdump tool.
I have submitted an upstream patch to obsolete the kdump tool from
upstream kexec-tools (which has been accepted), but after an internal
discussion we decided not to backport the upstream 'kexec-tools' patch
(which does the same) for fedora, as we would prefer to manage the
changes directly in the .spec file itself.
Signed-off-by: Bhupesh Sharma <bhsharma@redhat.com>
Kdump always use _proto=dhcp for both ipv4 and ipv6. But for ipv6
the dhcp address assignment is not like ipv4, there are different ways
for it, stateless and stateful, see below document:
https://fedoraproject.org/wiki/IPv6Guide
In case stateless, kernel can do the address assignment, dracut use
_proto=auto6; for stateful case, dracut use _proto=dhcp6.
But it is hard to decide whether stateless or stateful takes effect,
hence, dracut introduces ip=either6 option, which can try both of these
method automatically for us. For detail, refer to dracut:
commit 67354ee 40network: introduce ip=either6 option
We do not see bug reports before because for the most auto6 cases
kernel assign ip address before dhclient, kdump just happened to work.
Signed-off-by: Pingfan Liu <piliu@redhat.com>
Kdump service starts too late, so early crashes will have no chance
to get kdump kernel booting, this will cause crash information to be
lost. It is necessary to add a dracut module in order to load crash
kernel and initramfs as early as possible. You can provide "rd.early
kdump" in grub commandline to enable, then the early kdump will load
those files like the normal kdump, which is disabled by default.
For the normal kdump service, it can check whether the early kdump
has loaded the crash kernel and initramfs. It has no conflict with
the early kdump.
If you rebuild the new initramfs for early kdump, the new initramfs
size will become large, because it will put the vmlinuz and kdump
initramfs into the new initramfs.
In addition, early kdump doesn't support fadump.
Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
Reviewed-by: Kazuhito Hagio <khagio@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Dracut has "--hostonly-cmdline" which can generate cmdlines(if any)
regarding the dump target, it's an existing way for us to use to
simplify the code. E.g. We already removed generate_lvm_cmdlines(),
to use "--hostonly-cmdline".
But "--hostonly-cmdline" has other issues(e.g. BZ1451717), it adds
needless devices for kdump like root device.
Now dracut supports "--no-hostonly-default-device" which enables
us to only add the kdump target, which can avoid needless devices
being recognized under kdump. Thus "--hostonly-cmdline" side effects
can be avoided with the help of "--no-hostonly-default-device".
This patch applies dracut's "--hostonly-cmdline" together with
"--no-hostonly-default-device" to achieve above-mentioned purpose.
Signed-off-by: Xunlei Pang <xlpang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Added patch from panand which was accepted by upstream but not merged in upstream yet.
kexec-tools-2.0.15-makedumpfile-fix-SECTION_MAP_MASK-for-kernel-bigger-than-4.13.patch
https://bugzilla.redhat.com/show_bug.cgi?id=1474706
Makedumpfile failed with below error messages, which is caused by kernel changes 65ade2f872b474fa8a04c2d397783350326634e6:
Buffer size for the cyclic mode: 95992
vtop4_x86_64: Can't get the symbol of init_level4_pgt.
readmem: Can't convert a virtual address(ffffffff8fe18284) to physical address.
readmem: type_addr: 0, addr:ffffffff8fe18284, size:390
check_release: Can't get the address of system_utsname.
Pull in Pratyush's fix in upstream makedumpfile (not merged yet but acked by
maintainer)
Signed-off-by: Dave Young <dyoung@redhat.com>
This patch fixes the whitespace errors reported by
'rpmlint' or 'fedpkg lint' when they are run on kexec-tools srpm:
kexec-tools.spec:242: W: mixed-use-of-spaces-and-tabs (spaces: line 107,
tab: line 242)
Signed-off-by: Bhupesh Sharma <bhsharma@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
