mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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6f340f8564
fixed two issues: 1) potential uninitiliazed usage of 'len' in hvlog_read_dev(); 2) NULL dereference of 'last' if 'calloc' failure. Signed-off-by: Yan, Like <like.yan@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com> |
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| .. | ||
| acrnlog.c | ||
| acrnlog.service | ||
| Makefile | ||
| README.rst | ||
ACRNLOG ####### DESCRIPTION ########### acrnlog is a userland tool to capture ACRN hypervisor log, it runs as an SOS service at boot. It captures two kinds of logs: - log of current running; - log of last running if crashed and logs remaining. The path to save log files is /tmp/acrnog/, so the log files would be lost after reset. USAGE ##### The acrnlog tool is launched as a service at boot, with 4 1MB log files limited. To change the log file limitation: - temporary change Stop the acrnlog service: # systemctl disable acrnlog Restart acrnlog running at backgroud with size and number of files. For example: # acrnlog -n 8 -s 4 & Use get_loglevel/set_loglevel to query and change the hypervisor loglevel. The mem_loglevel controls log to be saved using acrnlog, while console_loglevel controls log to output to console. For example: ACRN:\>get_loglevel console_loglevel: 2, mem_loglevel: 4 ACRN:\>set_loglevel 2 5 ACRN:\>get_loglevel console_loglevel: 2, mem_loglevel: 5 - permanent chagne Edit /usr/lib/systemd/system/acrnlog.service to attached the -n and -s options to the ExecStart cmd, and restart the service. For example: ExecStart=/usr/bin/acrnlog -n 8 -s 4 BUILD&INSTALLATION ################## # make copy acrnlog to /usr/bin/ and copy acrnlog.service to /usr/lib/systemd/system/