linux-kernel - Re: + freezer-check-oom-kill-while-being-frozen.patch added to -mm tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 16 Oct 2014 22:39:54 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Cong Wang <xiyou.wangcong@...il.com>,
	Michal Hocko <mhocko@...e.cz>,
	David Rientjes <rientjes@...gle.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>, Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: + freezer-check-oom-kill-while-being-frozen.patch added to -mm
	tree

> Fix the issue by checking for TIF_MEMDIE thread flag and get away from the
> fridge if it is set.  oom_scan_process_thread doesn't have to check for
> the frozen task anymore because do_send_sig_info will wake up the thread
> and TIF_MEMDIE is already set by that time.

I must have missed something... but __refrigerator() sleeps in
TASK_UNINTERRUPTIBLE and do_send_sig_info() won't wake it up?

Oleg.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/