From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Thu, 8 Aug 2019 20:39:56 +0000 (-0400)
Subject: Fix: initialize kernel stream max subbuffer size on creation
X-Git-Tag: v2.12.0-rc1~512
X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=d05185faf74eddb5d0425822efc877c6c0ce5f0a;hp=d05185faf74eddb5d0425822efc877c6c0ce5f0a

Fix: initialize kernel stream max subbuffer size on creation

A consumer stream's maximal subbuffer size is only initialized while
taking a snapshot. This unexpectedly leaves the max_sb_size at 0
causing the rotation target sequence number computation to crash with
a SIGFPE.

This fix initializes the value as soon as possible to provide a
behaviour in line with that of the ust-consumer.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
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