linux-stable/scripts/gdb/linux
John Ogness deaee2704a scripts/gdb: lx-dmesg: read records individually
For the gdb command lx-dmesg, the entire descriptor, info, and text
data regions are read into memory before printing any records. For
large kernel log buffers, this not only causes a huge delay before
seeing any records, but it may also lead to python errors of too
much memory allocation.

Rather than reading in all these regions in advance, read them as
needed and only read the regions for the particular record that is
being printed.

The gdb macro "dmesg" in Documentation/admin-guide/kdump/gdbmacros.txt
already prints out the kernel log buffer like this.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/874k79c3a9.fsf@jogness.linutronix.de
2021-12-16 15:52:38 +01:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
__init__.py scripts/gdb: add empty package initialization script 2015-02-28 09:57:51 -08:00
clk.py scripts/gdb: print cached rate in lx-clk-summary 2019-05-14 19:52:52 -07:00
config.py scripts/gdb: add kernel config dumping command 2019-05-14 19:52:51 -07:00
constants.py.in scripts/gdb: fix invocation when CONFIG_COMMON_CLK is not set 2019-06-01 15:51:31 -07:00
cpus.py scripts/gdb: add lx_current support for arm64 2021-05-07 00:26:33 -07:00
device.py scripts/gdb: add helpers to find and list devices 2019-07-16 19:23:24 -07:00
dmesg.py scripts/gdb: lx-dmesg: read records individually 2021-12-16 15:52:38 +01:00
genpd.py PM: domains: Fix up terminology with parent/child 2020-07-09 14:24:00 +02:00
lists.py scripts/gdb: fix list_for_each 2021-02-26 09:41:05 -08:00
Makefile kbuild: use always-y instead of extra-y 2021-02-16 12:01:45 +09:00
modules.py scripts/gdb: support !CONFIG_MODULES gracefully 2016-05-23 17:04:14 -07:00
proc.py scripts/gdb/proc: add struct mount & struct super_block addr in lx-mounts command 2020-10-16 11:11:22 -07:00
rbtree.py scripts/gdb: fix python 3.8 SyntaxWarning 2020-08-12 10:58:02 -07:00
symbols.py scripts/gdb: handle split debug for vmlinux 2021-11-09 10:02:52 -08:00
tasks.py scripts/gdb/tasks: add headers and improve spacing format 2020-10-16 11:11:22 -07:00
timerlist.py scripts/gdb: add a timer list command 2019-05-14 19:52:52 -07:00
utils.py scripts/gdb: add utils.read_ulong() 2020-09-08 09:33:15 +02:00