This adds the same list of drivers we use for arm platforms for
aarch64 too, also add the DMA drivers there too as they can add
sigficant performance for some storage/usb and often need to be
present when the storage drivers load.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Cherry-picked from: 917e1b6b5bResolves: #1459277
If a hisi_sas storage device is used as / during system install, the
resulting installation will not boot because the hisi_sas driver is not
included in the initramfs.
The Hisilicon storage driver needs to be added to the initramfs image for
aarch64 kernels.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: dzickus@redhat.com
Cc: dmarlin@redhat.com
Cc: wefu@redhat.com
Cc: harald@redhat.comResolves: #1459277
Bug related to this issue: https://bugzilla.redhat.com/show_bug.cgi?id=1360131
Now dracut only attempts to copy GlobalKnownHostsFile while generating kdump's
initramfs. This method will cause kdump's failure if users set customized
UserKnownHostsFile in /etc/ssh/ssh_config. This patch simply attempts to copy
those files too while going through /etc/ssh/ssh_config. Note that we need to
make sure ~/foo will be copied as /root/foo in kdump's initramfs.
Cherry-picked from: 32f5af2f5eResolves: #1360131
Commit cf376023e6 moved writing .resolv.conf and .override
after dhcp_do, because dhcp_do was overwriting .resolv.conf. But .override does not have
such problem and on the contrary dhcp_do reads .override file if it is present. So let\'s
move it back.
https://bugzilla.redhat.com/show_bug.cgi?id=1415004
Extend "rd.memdebug" to "4", and "make_trace_mem" to "4+:komem".
Add new "cleanup_trace_mem" to cleanup the trace if active.
Signed-off-by: Xunlei Pang <xlpang@redhat.com>
The current method for memory debug is to use "rd.memdebug=[0-3]",
it is not enough for debugging kernel modules. For example, when we
want to find out which kernel module consumes a large amount of memory,
"rd.memdebug=[0-3]" won't help too much.
A better way is needed to achieve this requirement, this is useful for
kdump OOM debugging.
The principle of this patch is to use kernel trace to track slab and
buddy allocation calls during kernel module loading(module_init), thus
we can analyze all the trace data and get the total memory consumption.
As for large slab allocation, it will probably fall into buddy allocation,
thus tracing "mm_page_alloc" alone should be enough for the purpose(this
saves quite some trace buffer memory, also large free is quite unlikey
during module loading, we neglect those memory free events).
The trace events include memory calls under "tracing/events/":
kmem/mm_page_alloc
We also inpect the following events to detect the module loading:
module/module_load
module/module_put
Since we use filters to trace events, the final trace data size won't
be too big. Users can adjust the trace buffer size via "trace_buf_size"
kernel boot command line as needed.
We can get the module name and task pid from "module_load" event which
also mark the beginning of the loading, and module_put called by the
same task pid implies the end of the loading. So the memory events
recorded in between by the same task pid are consumed by this module
during loading(i.e. modprobe or module_init()).
With these information, we can record the rough total memory(the larger,
the more precise the result will be) consumption involved by each kernel
module loading.
Thus we introduce this shell script to find out which kernel module
consumes a large amount of memory during loading. Use "rd.memdebug=4"
as the tigger.
After applying this patch and specifying "rd.memdebug=4", during booting
it will print out something extra like below:
0 pages consumed by "pata_acpi"
0 pages consumed by "ata_generic"
1 pages consumed by "drm"
0 pages consumed by "ttm"
0 pages consumed by "drm_kms_helper"
835 pages consumed by "qxl"
0 pages consumed by "mii"
6 pages consumed by "8139cp"
0 pages consumed by "virtio"
0 pages consumed by "virtio_ring"
9 pages consumed by "virtio_pci"
1 pages consumed by "8139too"
0 pages consumed by "serio_raw"
0 pages consumed by "crc32c_intel"
199 pages consumed by "virtio_console"
0 pages consumed by "libcrc32c"
9 pages consumed by "xfs"
From the print, we see clearly that "qxl" consumed the most memory.
This file will be installed as a separate executable named "tracekomem"
in the following patch.
Signed-off-by: Xunlei Pang <xlpang@redhat.com>
use inst() instead of inst_simple()
/etc/pki/tls/certs/ca-bundle.crt is a symlink to
../../ca-trust/extracted/pem/tls-ca-bundle.pem
with inst() we install the original file also.
https://bugzilla.redhat.com/show_bug.cgi?id=1341280
Lukas Nykryn