Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace.c Create Date:2022-07-28 11:59:19
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:trace_printk_init_buffers

Proto:void trace_printk_init_buffers(void)

Type:void

Parameter:Nothing

3125  If buffers_allocated Then Return
3128  If alloc_percpu_trace_buffer() Then Return
3133  pr_warn("\n")
3134  pr_warn("**********************************************************\n")
3135  pr_warn("** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **\n")
3136  pr_warn("** **\n")
3137  pr_warn("** trace_printk() being used. Allocating extra memory. **\n")
3138  pr_warn("** **\n")
3139  pr_warn("** This means that this is a DEBUG kernel and it is **\n")
3140  pr_warn("** unsafe for production use. **\n")
3141  pr_warn("** **\n")
3142  pr_warn("** If you see this message and you are not debugging **\n")
3143  pr_warn("** the kernel, report this immediately to your vendor! **\n")
3144  pr_warn("** **\n")
3145  pr_warn("** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **\n")
3146  pr_warn("**********************************************************\n")
3149  racing_update_buffers - used by tracing facility to expand ring buffers* To save on memory when the tracing is never used on a system with it* configured in
3151  buffers_allocated = 1
3159  If buffer Then tracing_start_cmdline_record()
Caller
NameDescribe
tracer_alloc_buffers
hold_module_trace_bprintk_format
bpf_get_trace_printk_proto