Thread (25 messages) flat view 25 messages, 2 authors, 23h ago

Re: [PATCH v4 06/18] tracing/remotes: Add dmesg tracefs file

From: Steven Rostedt <rostedt@goodmis.org>
Date: 2026-08-11 13:48:54
Also in: lkml

On Tue, 11 Aug 2026 10:09:27 +0100
Vincent Donnefort [off-list ref] wrote:
quoted
quoted
This is a pre-existing issue, but if an oversized event causes
trace_remote_iter_print_event() to return -EOVERFLOW, will this break
the loop without calling trace_remote_iter_move()?

Since the event is left unconsumed in the buffer, could this lead to an
uninterruptible infinite loop (hard lockup) when reading the trace pipe?  
I'll let you answer the above.

-- Steve  
I don't believe this can realistically happen, trace_seq buffer is 8K and remote
events are really small. 
They are small until they are not ;-)

Is there anything that forces their size to be small?

-- Steve
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