[lttng-dev] [EXTERNAL] Re: Problem with application changing UID

[Kramer, Zach]

Hi Jonathan,

Thanks for the extra info. We do indeed fork without a following exec call and I experimented with this preloading recently. When I experimented, I noticed no difference in the tracing when I preload liblttng-ust-fork.so. What exactly is the consequence of not doing this?

Thanks!


-----Original Message-----
From: Jonathan Rajotte-Julien <jonathan.rajotte-julien at efficios.com> 
Sent: Tuesday, September 24, 2019 6:06 PM
To: Kramer, Zach <Zach.Kramer at cognex.com>
Cc: lttng-dev at lists.lttng.org
Subject: Re: [EXTERNAL] Re: [lttng-dev] Problem with application changing UID

Hi Zach,

Forgot to add that you might want to look at available UST wrappers depending on the nature of your daemon application.

https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flttng.org%2Fdocs%2Fv2.10%2F%23doc-using-lttng-ust-with-daemons&data=02%7C01%7CZach.Kramer%40cognex.com%7C5bd45c30c5bd4c48ad4c08d741091b32%7Cc12007a4882b4381b05ab783431570c7%7C1%7C0%7C637049379681260582&sdata=R8O%2Be9j9O4O7pUAX5TAmLGQLGoIRKgg5k9vOixhTDHg%3D&reserved=0
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flttng.org%2Fdocs%2Fv2.10%2F%23doc-liblttng-ust-fd&data=02%7C01%7CZach.Kramer%40cognex.com%7C5bd45c30c5bd4c48ad4c08d741091b32%7Cc12007a4882b4381b05ab783431570c7%7C1%7C0%7C637049379681270586&sdata=iNJnFMPDqCUzZS6a2hUrN4tGfpoInT5MgQYnANk6Y4g%3D&reserved=0

Cheers
--
Jonathan Rajotte-Julien
EfficiOS