Lines Matching +full:boot +full:- +full:method
11 - Written for: 6.12
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21 $ sudo mount -t tracefs tracefs /sys/kernel/tracing
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77 buffers is broken up into sub-buffers that are by default PAGE_SIZE. The
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86 following boot. There's two ways to reserve memory for the use of the ring
92 advantage of using this method, is that the memory for the ring buffer will
107 at boot is with the "reserve_mem" option::
112 boot up, and align it by 4096 bytes. It will label this memory as "trace"
116 memory reserved by reserve_mem that was labeled as "trace". This method is
119 then the ring buffer will not be from the previous boot and will be reset.
128 On boot up, the memory reserved for the ring buffer is validated. It will go
139 Using trace_printk() in the boot instance
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145 destination from the kernel command line, or set it after boot up via the
148 After boot up::
157 disable tracing with the "traceoff" flag, and enable tracing after boot up.
158 Otherwise the trace from the most recent boot will be mixed with the trace
159 from the previous boot, and may make it confusing to read.