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Editing: kernel.py
# This file is part of the sos project: https://github.com/sosreport/sos # # This copyrighted material is made available to anyone wishing to use, # modify, copy, or redistribute it subject to the terms and conditions of # version 2 of the GNU General Public License. # # See the LICENSE file in the source distribution for further information. import glob from sos.policies.distros.redhat import RedHatPolicy from sos.report.plugins import Plugin, IndependentPlugin, PluginOpt class Kernel(Plugin, IndependentPlugin): """The Kernel plugin is aimed at collecting general information about the locally running kernel. This information should be distribution-neutral using commands and filesystem collections that are ubiquitous across distributions. Debugging information from /sys/kernel/debug is collected by default, however care is taken so that these collections avoid areas like /sys/kernel/debug/tracing/trace_pipe which would otherwise cause the sos collection attempt to appear to 'hang'. The 'trace' option will enable the collection of the /sys/kernel/debug/tracing/trace file specfically, but will not change the behavior stated above otherwise. """ short_desc = 'Linux kernel' plugin_name = 'kernel' profiles = ('system', 'hardware', 'kernel') verify_packages = ('kernel$',) sys_module = '/sys/module' option_list = [ PluginOpt('with-timer', default=False, desc='gather /proc/timer* statistics'), PluginOpt('trace', default=False, desc='gather /sys/kernel/debug/tracing/trace file') ] def setup(self): # RedHat distributions can deliver kernel in RPM named either 'kernel' # or 'kernel-redhat', so we must verify both if isinstance(self.policy, RedHatPolicy): self.verify_packages = ('kernel$', 'kernel-redhat$') # compat self.add_cmd_output("uname -a", root_symlink="uname", tags="uname") self.add_cmd_output("lsmod", root_symlink="lsmod", tags="lsmod") self.add_dir_listing('/sys/kernel/slab') try: modules = self.listdir(self.sys_module) self.add_cmd_output("modinfo " + " ".join(modules), suggest_filename="modinfo_ALL_MODULES", tags='modinfo_all') except OSError: self._log_warn(f"could not list {self.sys_module}") # find /lib/modules/*/{extras,updates,weak-updates} -ls extra_mod_patterns = [ "/lib/modules/*/extra", "/lib/modules/*/updates", "/lib/modules/*/weak-updates", ] extra_mod_paths = [] for pattern in extra_mod_patterns: extra_mod_paths.extend(glob.glob(pattern)) if extra_mod_paths: self.add_cmd_output(f"find {' '.join(extra_mod_paths)} -ls") self.add_cmd_output([ "dmesg", "dmesg -T", "dkms status" ], cmd_as_tag=True) self.add_cmd_output("sysctl -a", tags="sysctl") clocksource_path = "/sys/devices/system/clocksource/clocksource0/" self.add_forbidden_path([ '/sys/kernel/debug/tracing/trace_pipe', '/sys/kernel/debug/tracing/README', '/sys/kernel/debug/tracing/trace_stat', '/sys/kernel/debug/tracing/per_cpu', '/sys/kernel/debug/tracing/events', '/sys/kernel/debug/tracing/free_buffer', '/sys/kernel/debug/tracing/trace_marker', '/sys/kernel/debug/tracing/trace_marker_raw', '/sys/kernel/debug/tracing/instances/*/per_cpu/*/snapshot_raw', '/sys/kernel/debug/tracing/instances/*/per_cpu/*/trace_pipe*', '/sys/kernel/debug/tracing/instances/*/trace_pipe' ]) self.add_copy_spec([ "/proc/modules", "/proc/sys/kernel/random/boot_id", "/sys/module/*/parameters", "/sys/module/*/initstate", "/sys/module/*/refcnt", "/sys/module/*/taint", "/sys/module/*/version", "/sys/firmware/acpi/*", "/sys/kernel/debug/tracing/*", "/sys/kernel/livepatch/*", "/proc/kallsyms", "/proc/buddyinfo", "/proc/slabinfo", "/proc/zoneinfo", f"/lib/modules/{self.policy.kernel_version()}/modules.dep", "/etc/conf.modules", "/etc/modules.conf", "/etc/modprobe.conf", "/etc/modprobe.d", "/lib/modprobe.d", "/run/modprobe.d", "/usr/local/lib/modprobe.d", "/etc/sysctl.conf", "/etc/sysctl.d", "/lib/sysctl.d", "/proc/cmdline", "/proc/driver", "/proc/sys/kernel/tainted", "/proc/softirqs", "/proc/lock*", "/proc/misc", "/var/log/dmesg", "/sys/fs/pstore", "/var/lib/systemd/pstore", "/sys/kernel/hardlockup_count", "/sys/kernel/softlockup_count", "/sys/kernel/warn_count", "/sys/kernel/oops_count", "/sys/kernel/debug/dynamic_debug/control", "/sys/kernel/debug/extfrag/unusable_index", "/sys/kernel/debug/extfrag/extfrag_index", "/sys/kernel/debug/hv-balloon", clocksource_path + "available_clocksource", clocksource_path + "current_clocksource", "/proc/pressure/", f"/boot/config-{self.policy.kernel_version()}" ]) if self.get_option("with-timer"): # This can be very slow, depending on the number of timers, # and may also cause softlockups self.add_copy_spec("/proc/timer*") if not self.get_option("trace"): self.add_forbidden_path("/sys/kernel/debug/tracing/trace") # vim: set et ts=4 sw=4 :
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