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Locked
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The iovisor-dev group has been locked.
This group is no longer maintained and has been locked at the request of moderator Alexei Starovoitov.
This group is no longer maintained and has been locked at the request of moderator Alexei Starovoitov.
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Kenny Paul
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Accessing parameters and arguments for C++ functions using uprobes
Hello All, Just came across this old message on accessing parameters and arguments for C++ functions: https://lists.iovisor.org/g/iovisor-dev/message/1934?p=%2C%2C%2C20%2C0%2C0%2C0%3A%3ACreated%2C%2Cp
Hello All, Just came across this old message on accessing parameters and arguments for C++ functions: https://lists.iovisor.org/g/iovisor-dev/message/1934?p=%2C%2C%2C20%2C0%2C0%2C0%3A%3ACreated%2C%2Cp
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By
Rob Scheepens
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Questions about samples/bpf/sockex3_user.c
Hello iovisor friends, I found that there seems to be a problem in the eBPF sample source code of the Linux kernel samples/bpf/sockex3_user.c. This program contains the following code: printf("%s.%05d
Hello iovisor friends, I found that there seems to be a problem in the eBPF sample source code of the Linux kernel samples/bpf/sockex3_user.c. This program contains the following code: printf("%s.%05d
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yaofighting
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one-shot BPF program in the context of a specific PID
5 messages
Hello iovisor friends, I'm curious what my options are for running a BPF program once, immediately, in the virtual memory context of a particular (user space) process. For example, say I want to read
Hello iovisor friends, I'm curious what my options are for running a BPF program once, immediately, in the virtual memory context of a particular (user space) process. For example, say I want to read
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Andrei Matei
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Print slow commit operations in nfsslower
3 messages
Hi, I was using nfsslower in bcc tools and noticed that it doesn't print out slow commit operations, which sometimes cause long delays in NFS writes. I tried adding code to trace slow commit operation
Hi, I was using nfsslower in bcc tools and noticed that it doesn't print out slow commit operations, which sometimes cause long delays in NFS writes. I tried adding code to trace slow commit operation
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By
TATSUKAWA KOSUKE(立川 江介)
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Tracing queries within DB transactions with dbslower
2 messages
Hello, as part of a university project I am analysing the dbslower tool to evaluate the performance cost of tracing the queries and to test what can be traced with it. As MySQL dropped support for Dtr
Hello, as part of a university project I am analysing the dbslower tool to evaluate the performance cost of tracing the queries and to test what can be traced with it. As MySQL dropped support for Dtr
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Kevin Maier
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Questions about cachetop.py tool
#bcc
I have some questions about cachetop.py tool. Why the total accesses is defined as the times of entering mark_page_accessed plus mark_buffer_dirty functions? Doesn't enter mark_buffer_dirty must also
I have some questions about cachetop.py tool. Why the total accesses is defined as the times of entering mark_page_accessed plus mark_buffer_dirty functions? Doesn't enter mark_buffer_dirty must also
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thesummernightcat@...
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Parsing Non linear packet payload in TC BPF programs
Hi all, We are parsing DHCP packets in TC egress program, In our case, the packet after the UDP header was not present in between skb->data and skb->data_end. On further investigation we found that it
Hi all, We are parsing DHCP packets in TC egress program, In our case, the packet after the UDP header was not present in between skb->data and skb->data_end. On further investigation we found that it
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deepankur.gupta.97@...
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Looking for some bcc issues for new bie
2 messages
Hi I am looking for some bcc issues for newbie. Any link ? Jules ..
Hi I am looking for some bcc issues for newbie. Any link ? Jules ..
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Jules Irenge
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LPC 2022 Networking and BPF Track CFP (Final Reminder)
This is the final reminder for the Call for Proposals (CFP) for the Networking and BPF track at the 2022 edition of the Linux Plumbers Conference (LPC), which is planned to be held in Dublin, Ireland,
This is the final reminder for the Call for Proposals (CFP) for the Networking and BPF track at the 2022 edition of the Linux Plumbers Conference (LPC), which is planned to be held in Dublin, Ireland,
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By
Daniel Borkmann
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LPC 2022 Networking and BPF Track CFP (Reminder)
This is a reminder for the Call for Proposals (CFP) for the Networking and BPF track at the 2022 edition of the Linux Plumbers Conference (LPC), which is planned to be held in Dublin, Ireland, on Sept
This is a reminder for the Call for Proposals (CFP) for the Networking and BPF track at the 2022 edition of the Linux Plumbers Conference (LPC), which is planned to be held in Dublin, Ireland, on Sept
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By
Daniel Borkmann
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stackcount return *blank* stack.
https://github.com/iovisor/bcc/issues/3891 I have the same issue, anyone can help me to fix it?
https://github.com/iovisor/bcc/issues/3891 I have the same issue, anyone can help me to fix it?
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By
Ye ZhengMao
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LPC 2022 Networking and BPF Track CFP
We are pleased to announce the Call for Proposals (CFP) for the Networking and BPF track at the 2022 edition of the Linux Plumbers Conference (LPC), which is planned to be held in Dublin, Ireland, on
We are pleased to announce the Call for Proposals (CFP) for the Networking and BPF track at the 2022 edition of the Linux Plumbers Conference (LPC), which is planned to be held in Dublin, Ireland, on
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Daniel Borkmann
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RPI install with snapcraft
I installed on latest Raspbian (bullseye) with Snapcraft. However, when I tried to run hello_world.py with python3, I got modprobe: FATAL: Module kheaders not found in directory /lib/modules/5.10.63-v
I installed on latest Raspbian (bullseye) with Snapcraft. However, when I tried to run hello_world.py with python3, I got modprobe: FATAL: Module kheaders not found in directory /lib/modules/5.10.63-v
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theycallmevirgo@...
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#bcc Count map.ringbuf_reserve() failures
4 messages
#bcc
Thought I added the #bcc tag but I no longer see it :( So just in case, it's not clear, this is with BCC.
Thought I added the #bcc tag but I no longer see it :( So just in case, it's not clear, this is with BCC.
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By
Eelco Chaudron
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Count map.ringbuf_reserve() failures
Hi, Was wondering if there is a way to count the number of times map.ringbuf_reserve() fails for a BPF_RINGBUF_OUTPUT buffer? This way I can get notified in userspace that I have missed events, and mi
Hi, Was wondering if there is a way to count the number of times map.ringbuf_reserve() fails for a BPF_RINGBUF_OUTPUT buffer? This way I can get notified in userspace that I have missed events, and mi
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By
Eelco Chaudron
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Access packet payload in TC egress programs
5 messages
Dear all, how can I access the payload of the packet in a program attached to the TC egress hook (SCHED_CLS attached to clsact qdisc)? ctx->data_end points to the end of the L4 header, while on the in
Dear all, how can I access the payload of the packet in a program attached to the TC egress hook (SCHED_CLS attached to clsact qdisc)? ctx->data_end points to the end of the L4 header, while on the in
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Federico Parola
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Tracing CPU utilisation
2 messages
Hi, Can someone please let me know that there is any way to get a CPU profile for a specific function using eBPF? Thanks & Regards, Ragalahari
Hi, Can someone please let me know that there is any way to get a CPU profile for a specific function using eBPF? Thanks & Regards, Ragalahari
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By
Raga lahari
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LPC 2021 Networking and BPF Track CFP (2nd reminder)
This is a reminder for the Call for Proposals (CFP) for the Networking and BPF track at the 2021 edition of the Linux Plumbers Conference (LPC), which will be held virtually on the wider Internet, on
This is a reminder for the Call for Proposals (CFP) for the Networking and BPF track at the 2021 edition of the Linux Plumbers Conference (LPC), which will be held virtually on the wider Internet, on
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By
Daniel Borkmann
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LPC 2021 Networking and BPF Track CFP (Reminder)
This is a reminder for the Call for Proposals (CFP) for the Networking and BPF track at the 2021 edition of the Linux Plumbers Conference (LPC), which will be held virtually on the wider Internet, on
This is a reminder for the Call for Proposals (CFP) for the Networking and BPF track at the 2021 edition of the Linux Plumbers Conference (LPC), which will be held virtually on the wider Internet, on
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By
Daniel Borkmann
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