TechQA.

Question

modpost: "__tracepoint_sched_switch" was exported without definition

score 57 · Answer 1 · 2024-01-10T11:36:32.493000

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modpost: "__tracepoint_sched_switch" was exported without definition

57 views Asked by Liyuu At 10 January 2024 at 11:36

score 168 · Answer 2 · 2023-12-06T14:08:55.130000

How to bpf_probe_read_str all ctx->argv elements in kernel space and forward it to the userspace?

168 views Asked by Sathi At 06 December 2023 at 14:08

score 178 · Answer 3 · 2023-10-30T14:34:43.413000

Tracing with eBPF tracepoint "netif_receive_skb" for multiple NICs

178 views Asked by hundredmiles At 30 October 2023 at 14:34

score 328 · Answer 4 · 2023-10-30T09:46:00.553000

Extracting UDP packet payload with eBPF tracepoints using libbpf

328 views Asked by hundredmiles At 30 October 2023 at 09:46

score 155 · Answer 5 · 2023-07-31T12:27:38.623000

Incorrect address displayed by bpf_printk

155 views Asked by WU ZHENWEI At 31 July 2023 at 12:27

score 446 · Answer 6 · 2023-06-09T08:15:56.090000

tracepoint/syscalls/sys_enter_execve missing args

446 views Asked by HIHIA At 09 June 2023 at 08:15

score 964 · Answer 7 · 2023-03-22T06:20:02.753000

error mounting "/sys/kernel/debug/tracing" to rootfs

964 views Asked by 54vault At 22 March 2023 at 06:20

score 1428 · Answer 8 · 2023-02-26T10:15:58.770000

How to get bpftool to attach a program to a tracepoint?

1.4k views Asked by metaphysicalmarty At 26 February 2023 at 10:15

score 1080 · Answer 9 · 2023-02-07T08:43:28.123000

eBPF vs non-eBPF tracepoint/kprobes

1k views Asked by Mario At 07 February 2023 at 08:43

score 189 · Answer 10 · 2023-01-31T16:24:08.167000

eBPF verifier: R1 is not a scalar

189 views Asked by Mario At 31 January 2023 at 16:24

score 355 · Answer 11 · 2022-09-27T08:33:16.093000

perf_event_open tracepoint with bpf for a specific cpu

355 views Asked by zephyr0110 At 27 September 2022 at 08:33

score 271 · Answer 12 · 2022-09-11T12:28:07.420000

How to have linux kernel trace printed to console

271 views Asked by ksrikanth At 11 September 2022 at 12:28

score 556 · Answer 13 · 2022-08-03T15:52:00.740000

Get HTTP Request and response pairs with eBPF tracepoints

556 views Asked by Odess4 At 03 August 2022 at 15:52

score 176 · Answer 14 · 2022-06-03T08:11:56.440000

How to redirect tracepoint output to a file in Ruby?

176 views Asked by CSMan At 03 June 2022 at 08:11

score 337 · Answer 15 · 2022-03-02T08:06:40.107000

What is the correct way for reading kernel tracepoint arguments?

337 views Asked by Nimrodshn At 02 March 2022 at 08:06

score 434 · Answer 16 · 2022-02-17T09:03:54.333000

Why `events/syscalls/sys_enter` does not support string format as output?

434 views Asked by m-bat At 17 February 2022 at 09:03

score 2048 · Answer 17 · 2022-01-31T08:19:12.897000

Is there a way to increase the size of ebpf stack getting "error looks like the bpf stack limit of 512 bytes is exeeded",

2k views Asked by user786 At 31 January 2022 at 08:19

score 214 · Answer 18 · 2021-02-22T19:32:44.907000

Using printk in tracepoint causes the system to freeze

214 views Asked by noryeral At 22 February 2021 at 19:32

score 751 · Answer 19 · 2021-01-23T12:23:41.307000

In a Linux system call, are system call parameters preserved in registers after the syscall finished (at the sys_exit tracepoint)?

751 views Asked by user2828102 At 23 January 2021 at 12:23

score 585 · Answer 20 · 2020-12-03T13:07:34.957000

How to print Java object's current value to console, instead of suspend thread while debug in the Eclipse?

585 views Asked by foal At 03 December 2020 at 13:07

TechQA.

List Question

modpost: "__tracepoint_sched_switch" was exported without definition

How to bpf_probe_read_str all ctx->argv elements in kernel space and forward it to the userspace?

Tracing with eBPF tracepoint "netif_receive_skb" for multiple NICs

Extracting UDP packet payload with eBPF tracepoints using libbpf

Incorrect address displayed by bpf_printk

tracepoint/syscalls/sys_enter_execve missing args

error mounting "/sys/kernel/debug/tracing" to rootfs

How to get bpftool to attach a program to a tracepoint?

eBPF vs non-eBPF tracepoint/kprobes

eBPF verifier: R1 is not a scalar

perf_event_open tracepoint with bpf for a specific cpu

How to have linux kernel trace printed to console

Get HTTP Request and response pairs with eBPF tracepoints

How to redirect tracepoint output to a file in Ruby?

What is the correct way for reading kernel tracepoint arguments?

Why `events/syscalls/sys_enter` does not support string format as output?

Is there a way to increase the size of ebpf stack getting "error looks like the bpf stack limit of 512 bytes is exeeded",

Using printk in tracepoint causes the system to freeze

In a Linux system call, are system call parameters preserved in registers after the syscall finished (at the sys_exit tracepoint)?

How to print Java object's current value to console, instead of suspend thread while debug in the Eclipse?

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