linux-kernel - Re: broken suspend [Was: 2.6.24-rc2-mm1]

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

Date:	Sun, 18 Nov 2007 23:27:59 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg KH <greg@...ah.com>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>
Subject: Re: broken suspend [Was: 2.6.24-rc2-mm1]

On Sunday, 18 of November 2007, Jiri Slaby wrote:
> On 11/18/2007 06:07 PM, Alan Stern wrote:
> > You'll get more useful results if you redo your changes to 
> > notifier_call_chain().  Have it print out the address of the routine 
> > _before_ making the call, and don't limit it to 20.  That way you'll 
> > know exactly which notifier routine ends up hanging.
> 
> The problem is, that notifier_call_chain is called again and again zillion times
> by somebody else...

You can use a global variable to switch the logging only before the CPU
hotunplug done by the suspend code.  You just need to hack
disable_nonboot_cpus() for that.
-
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/