linux-kernel - Re: i8k_smm_func() takes enormous of time to execute

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]

Message-ID: <20171124112543.3css4fwwmbiu36bm@pali>
Date:   Fri, 24 Nov 2017 12:25:43 +0100
From:   Pali Rohár <pali.rohar@...il.com>
To:     Oleksandr Natalenko <oleksandr@...alenko.name>
Cc:     Jean Delvare <jdelvare@...e.de>,
        Jonathan Buzzard <jonathan@...zard.org.uk>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mario Limonciello <mario.limonciello@...l.com>
Subject: Re: i8k_smm_func() takes enormous of time to execute

On Friday 24 November 2017 12:17:30 Oleksandr Natalenko wrote:
> > There are two patches waiting to be tested in
> > https://bugzilla.kernel.org/show_bug.cgi?id=195751
> 
> Tested and attached a couple of patches on top of those to the BZ. If 
> disabling fan control is the only approach here, I can confirm that this 
> works.

Hi! Please figure out which SMM call (they are identified by eax and ebx
registers) cause this freeze. So we would now what needs to be
blacklisted.

-- 
Pali Rohár
pali.rohar@...il.com