Re: [iovisor-dev] Kernel crash when running bcc's test_xlate

On 01/11/2018 07:05 AM, Sandipan Das via iovisor-dev wrote: [...] > Any ideas about why this is happening? Also, it would be really helpful > if someone can translate the Pyroute2 calls in the test script to the > corresponding tc commands. I can trigger it as well, so I should have something

Re: [iovisor-dev] Kernel crash when running bcc's test_xlate

On 01/15/2018 09:33 PM, Daniel Borkmann via iovisor-dev wrote: > On 01/15/2018 09:13 PM, David Miller wrote: >> From: Daniel Borkmann via iovisor-dev >> Date: Mon, 15 Jan 2018 21:11:06 +0100 >> >>> On 01/15/2018 06:24 PM, Daniel Borkmann via iovisor-dev wrote:

Re: [iovisor-dev] Kernel crash when running bcc's test_xlate

From: Daniel Borkmann via iovisor-dev Date: Mon, 15 Jan 2018 21:11:06 +0100 > On 01/15/2018 06:24 PM, Daniel Borkmann via iovisor-dev wrote: >> On 01/11/2018 07:05 AM, Sandipan Das via iovisor-dev wrote: >> [...] >>> Any ideas about why this is happening? Also, it

Re: [iovisor-dev] Kernel crash when running bcc's test_xlate

On 01/15/2018 06:24 PM, Daniel Borkmann via iovisor-dev wrote: > On 01/11/2018 07:05 AM, Sandipan Das via iovisor-dev wrote: > [...] >> Any ideas about why this is happening? Also, it would be really helpful >> if someone can translate the Pyroute2 calls in the test script to the >> corresponding

Re: [iovisor-dev] Kernel crash when running bcc's test_xlate

On 01/15/2018 09:13 PM, David Miller wrote: > From: Daniel Borkmann via iovisor-dev > Date: Mon, 15 Jan 2018 21:11:06 +0100 > >> On 01/15/2018 06:24 PM, Daniel Borkmann via iovisor-dev wrote: >>> On 01/11/2018 07:05 AM, Sandipan Das via iovisor-dev wrote: >>> [...]

Re: [iovisor-dev] How to use USDT probes without having to pass the pid of the traced program?

Please note that some USDT probes have an associated "semaphore", which is really just a memory location that the probed code checks before actually invoking the probe. You cannot enable USDT probes that have a semaphore system-wide, without a process ID, because the semaphore location has to be

Re: [iovisor-dev] How to use USDT probes without having to pass the pid of the traced program?

Kiran, Yes, tracing through USDT without PID should work. You can just remove "-p" parameter and give a try. Please try latest bcc as it fixed a few bugs. Let us know if you hit any issues. Yonghong On Mon, Jan 15, 2018 at 5:11 PM, Kiran T via iovisor-dev

[iovisor-dev] How to use USDT probes without having to pass the pid of the traced program?

Hi All the examples on tracing processes with USDT require the pid of the traced program: https://github.com/iovisor/bcc/tree/master/examples/tracing Can one not request to monitor binaries -- like with uprobes/uretprobes but with USDT? I am trying to trace php scripts running on a webserver,