This patch refines the process of log space check.
Check a folder's size need to traverse all nodes of files and subdirs,
in the case of extreme memory strain, accessing these log file nodes
frequently will increase the IO pressure on the eMMC.
Previously, all log files will be accessed and counted in each space
check, this patch refines it by only calculating the increment of new logs.
Tracked-On: #1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Liu, Xiaojing <xiaojing.liu@intel.com>
Acked-by: Chen, Gang <gang.c.chen@intel.com>
Dispatch the new event id and log directory in one place.
Tracked-On: #1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Liu, Xiaojing <xiaojing.liu@intel.com>
Acked-by: Chen, Gang <gang.c.chen@intel.com>
This patch unifies the event analyzing process in the
crashlog_sender functions:
a. analyze android events in android_events.c.
b. unify the analyzing output form of vm events and crash events.
c. concentrate the event analyzing process to the same function.
Tracked-On: #1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Liu, Xiaojing <xiaojing.liu@intel.com>
Acked-by: Chen, Gang <gang.c.chen@intel.com>
Push the recorded vm events to event_queue, and let senders do the
collecting job in the event_handler thread.
Tracked-On: #1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Liu, Xiaojing <xiaojing.liu@intel.com>
Acked-by: Chen, Gang <gang.c.chen@intel.com>
This patch provides some new functions to operate file
/var/log/crashlog/VM_eventsID.log.
Adding a mutex to protect this file as it will be accessed in multiple
threads in the coming patches.
Tracked-On: #1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Liu, Xiaojing <xiaojing.liu@intel.com>
Acked-by: Chen, Gang <gang.c.chen@intel.com>
Function sender_id need to traverse all senders and then find the
matched id. This patch adds property "id" for each configuration object
and removes function sender_id.
Tracked-On: #1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Liu, Xiaojing <xiaojing.liu@intel.com>
Acked-by: Chen, Gang <gang.c.chen@intel.com>
Crashlog would drop all events after the storaged log size exceeds the
configured parameter "foldersize" previously, that basically means all
activities are stopped.
This patch brings other activities back (e.g. the records in the file
"history_event" will be updated continually), and restricts the "foldersize" by
stopping log collection.
Tracked-On: #1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhi Jin <zhi.jin@intel.com>
Acked-by: Chen, Gang <gang.c.chen@intel.com>
Dmesg collects too much log when kernel meets log storm.
This patch reads kernel log from "/dev/kmsg" intead of dmesg and limits
the generated log size.
Tracked-On: #1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhi Jin <zhi.jin@intel.com>
Acked-by: Chen, Gang <gang.c.chen@intel.com>
1. remove watching TOMBSTONE in AaaG.
2. add a configurable parameter "foldersize" in MB, sender will drop
all events when the storaged log size exceeds this parameter.
Tracked-On:#1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Chen Gang <gang.c.chen@intel.com>
Acked-by: Zhang Di <di.zhang@intel.com>
Remove strlen in common apis, and change their caller if necessary.
Tracked-On: #1254
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
Remove unsafe api strlen except the parameter is a static string.
Tracked-On: #1254
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
Acrnprobe is using SHA to generate ids for events. These ids are only used
to index events, not for cryptographic purpose.
This patch unify the generating algorithm of short and long ids to
SHA256.
Tracked-On: #1024
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhi Jin <zhi.jin@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
This patch is to fix the build warning with gcc8.1.1. Most of them are
warnings for buffer overflow from snprintf and strncpy.
Signed-off-by: CHEN Gang <gang.c.chen@intel.com>
Reviewed-by: Zhi Jin <zhi.jin@intel.com>
Reviewed-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: xiaojin2 <xiaojing.liu@intel.com>
Replace debugfs with api in loop.c.
There is no functional change.
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
This patch impletement apis with libext2fs, which are for dumping and
reading files or dirs in extfs.
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
Since ACRN has the capability to reboot and reboot reason is available
in SOS, acrnprobe could detect the crash of acrn and SOS kernel.
List of added crash types:
1. ACRNCRASH - crashed in hypervisor, this detection depends on
files in /tmp/acrnlog_last(provided by acrnlog).
2. IPANIC - crashed in SOS kernel, this detection depends on
pstore.
3. SWWDT_IPANIC - crashed in SOS kernel and reboot reason is wdt.
4. HWWDT_UNHANDLE - only recognize reboot reason is global, there is no
further clues that it's a SOS kernel crash or a
hypervisor crash.
5. SWWDT_UNHANDLE - only recognize reboot reason is wdt, there is no
further clues that it's a SOS kernel crash or a
hypervisor crash.
6. UNKNOWN - only recognize reboot reason is warm, there is no
further clues that it's a SOS kernel crash or a
hypervisor crash.
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
1. Reload the trigger file(s) of subcrash while doing crash reclassify.
2. Support simple format for trigger file.
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
In the original design, acrnprobe marked all handled VMs'events as "synced"
in file vmrecordid(this patch changes the name to VM_eventsID.log).
Currently, the Android log events are not logged if the first attempt at
reading collecting them from the VM fails. This patch changes the logic
so that the acrn-crashlog tool will retry continuously.
This patch defines different tags for handled VMs'events, and only marks
VMs'events "synced" after it returns successfully.
Signed-off-by: Liu, Xinwu <xinwu.liu@intel.com>
Reviewed-by: xiaojin2 <xiaojing.liu@intel.com>
Reviewed-by: Jin Zhi <zhi.jin@intel.com>
Acked-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Chen gang <gang.c.chen@intel.com>
This patch is to fix potential issues, which are reported by static
analysis tool, for acrnprobe.
Changes:
1. Check the return value of sender_id() and get_sender_by_name(),
since it could be -1 or NULL.
2. Remove the parameter len from create_event, take parameter path
as a NULL-terminated string as default.
3. Modify for_each_* functions to avoid overflow.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhi Jin <zhi.jin@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
This patch is to fix potential issues, which are reported by static
analysis tool, for load_conf module of acrnprobe.
Changes:
1. Check the range of id while loading configuration, to avoid
memory corruption.
2. Use strncpy instead of strcpy to avoid buf overflow.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhi Jin <zhi.jin@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
Sync events detected by android crashlog.
In android system, android crashlog is a log collection mechanism,
it will generate a history_event file to record android system events.
Acrnprobe will detect these events by scanning android history_event file.
This module mainly contains two functions:
1. setup loop device for android.img.
2. detect new event occursing in android.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
"history_event" is the file to manage all evebts collected by
acrnprobe. This patch provides the operation APIs for this file in a
fixed format.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
The channel represents a way of detecting the system's events.
So far, there are 3 channels:
1. oneshot, detect once while acrnprobe startup.
2. polling, run a detecting job with fixed time interval.
3. inotify, watch the change of file or dir.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
This patch provides some utils for acrnprobe.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
Acrnprobe needs to know some HW/SW properties, such as board version,
build version. These properties APIs are provided in this file.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
This file provides the functions to get system reboot reason from
kernel command line.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
There is a global queue to receive all events detected. Genarally,
events are enqueued in channel, and dequeued in event handler.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
To show the relationship between configuration items more clearly,
acrnprobe chose xml as its configuration file format.
This file provides functions to parse configuration and load them
into global variable conf.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
This patch implements the main thread of acrnprobe.
As a log collection mechanism to record critical events on the
platform, acrnprobe provides the following features:
1. detect event.
2. analyze event and determine the event type.
3. collect information for the detected events.
4. archive these information as logs, and generate records.
Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
Liu, Xinwu