Re: [mmots-2016-06-09-16-49] sleeping function called from slab_alloc()

From: mhocko
Date: Fri Jun 10 2016 - 05:56:03 EST


On 2016-06-10 11:50, Sergey Senozhatsky wrote:
Hello,

forked from http://marc.info/?l=linux-mm&m=146553910928716&w=2

new_slab()->BUG->die()->exit_signals() can be called from atomic
context: local IRQs disabled in slab_alloc().

I have sent a patch to drop the BUG() from that path today. It
is just too aggressive way to react to a non-critical bug.
See http://lkml.kernel.org/r/1465548200-11384-2-git-send-email-mhocko@xxxxxxxxxx
--
Michal Hocko