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Mathieu Desnoyers

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03/22/2018

05:36 PM LTTng-modules Bug #1149: Kernel soft lockup on trace start on Fedora 4.14.13-300
For the records, I also got the splat on my test machine on a 4.16-rc5 kernel. It was caused by the btrfs instrumenta...
05:33 PM LTTng-modules Revision d7921a5f (lttng-modules): Fix: btrfs instrumentation namespacing
Trips this warning:
[ 122.301894] WARNING: CPU: 6 PID: 1654 at /home/efficios/git/lttng-modules/lttng-probes.c:99 f...

02/28/2018

04:39 PM LTTng-modules Bug #1048 (Resolved): global_dirty_limit symbol lookup failed.
Fixed by commit:...
11:27 AM Userspace RCU Bug #1156: Redeclaration of rcu symbols when adding UST tracepoints to tools
This is unexpected:
In file included from ./syscall.h:22:0,
from /usr/local/include/urcu/syscall-compat.h:33,
...

02/27/2018

09:17 AM Userspace RCU Bug #1156: Redeclaration of rcu symbols when adding UST tracepoints to tools
It might work if you do not #define _LGPL_SOURCE at the top of the implementation. This will prevent inlining of urcu...

02/26/2018

03:13 PM Userspace RCU Bug #1156: Redeclaration of rcu symbols when adding UST tracepoints to tools
Now that I think about it a bit more, I now remember that it's not supported to include multiple liburcu flavors with...
03:08 PM Userspace RCU Bug #1156 (Confirmed): Redeclaration of rcu symbols when adding UST tracepoints to tools
03:01 PM Userspace RCU Bug #1156: Redeclaration of rcu symbols when adding UST tracepoints to tools
This is an issue in liburcu: this enum and its labels should have been namespaced with e.g. urcu_bp_... and URCU_BP_....
09:31 AM LTTng-modules Bug #1155 (Resolved): BUG: scheduling while atomic and BUG: sleeping function called from invalid context
Thanks for the feedback!

02/21/2018

11:28 AM LTTng-modules Bug #1155: BUG: scheduling while atomic and BUG: sleeping function called from invalid context
irc discussion about this:...

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