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[Bug bpf/23475] New: bpf backtrace tapset
- From: "me at serhei dot io" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Wed, 01 Aug 2018 13:19:09 +0000
- Subject: [Bug bpf/23475] New: bpf backtrace tapset
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=23475
Bug ID: 23475
Summary: bpf backtrace tapset
Product: systemtap
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: bpf
Assignee: systemtap at sourceware dot org
Reporter: me at serhei dot io
Target Milestone: ---
From the 'language features' brainstorm:
# Backtrace tapset
Backtraces can be recorded to eBPF's BPF_MAP_TYPE_STACK_TRACE. Backtrace
analysis+printing can be handled in userspace. This requires replacing the
trace_printk() functionality with a messaging protocol that offloads printing
to userspace (PR22330), then adding a new message type that requests a
backtrace to be printed.
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