6c307f8ff2
Linux kernel v4.15 introduces better diagnostics for Intel RDT operation errors. If any error returns when making new directories or writing to any of the control file in resctrl filesystem, reading file /sys/fs/resctrl/info/last_cmd_status could provide more information that can be conveyed in the error returns from file operations. Some examples: echo "L3:0=f3;1=ff" > /sys/fs/resctrl/container_id/schemata -bash: echo: write error: Invalid argument cat /sys/fs/resctrl/info/last_cmd_status mask f3 has non-consecutive 1-bits echo "MB:0=0;1=110" > /sys/fs/resctrl/container_id/schemata -bash: echo: write error: Invalid argument cat /sys/fs/resctrl/info/last_cmd_status MB value 0 out of range [10,100] cd /sys/fs/resctrl mkdir 1 2 3 4 5 6 7 8 mkdir: cannot create directory '8': No space left on device cat /sys/fs/resctrl/info/last_cmd_status out of CLOSIDs See 'last_cmd_status' for more details in kernel documentation: https://www.kernel.org/doc/Documentation/x86/intel_rdt_ui.txt In runc, we could append the diagnostics information to the error message of Intel RDT operation errors to provide more user-friendly information. Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com> |
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| .. | ||
| intelrdt.go | ||
| intelrdt_test.go | ||
| stats.go | ||
| util_test.go | ||