Thread (18 messages) 18 messages, 3 authors, 2016-03-01

Re: [PATCH RT 07/12] dump stack: dont disable preemption during trace

From: Steven Rostedt <rostedt@goodmis.org>
Date: 2016-03-01 18:25:51
Also in: lkml

On Tue, 1 Mar 2016 09:45:05 -0500
Steven Rostedt [off-list ref] wrote:
On Sat, 27 Feb 2016 11:32:06 +0100
Sebastian Andrzej Siewior [off-list ref] wrote:
quoted
On 2016-02-26 16:32:42 [-0500], Steven Rostedt wrote:  
quoted
3.18.27-rt26-rc1 stable review patch.
If anyone has any objections, please let me know.    
Please merge this one along with "kernel: migrate_disable() do fastpath
in atomic & irqs-off". Otherwise we might get recursive with lockdep and
CPU-hotplug (if we go after hp->lock in pin_current_cpu()).  
Interesting. When I pulled this patch into 4.1-rt, it caused the system
to lock up. I'm looking into it now.
And that's because this commit also needs:

"kernel: softirq: unlock with irqs on"

And due to the WARN_ON_ONCE() issue (that I just posted a patch to fix
mainline), it caused my system to reboot.

http://lkml.kernel.org/r/20160301110939.1b786f49@gandalf.local.home

-- Steve
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help