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:   Mon, 30 Oct 2017 15:06:04 +0100
From:   Borislav Petkov <bp@...e.de>
To:     Tyler Baicar <tbaicar@...eaurora.org>
Cc:     Fengguang Wu <fengguang.wu@...el.com>,
        Huang Ying <ying.huang@...el.com>,
        Chen Gong <gong.chen@...ux.intel.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Will Deacon <will.deacon@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>
Subject: Re: [ghes_copy_tofrom_phys] BUG: sleeping function called from
 invalid context at mm/page_alloc.c:4150

On Mon, Oct 30, 2017 at 10:01:52AM -0400, Tyler Baicar wrote:
> This is not as important for polling sources as it is for the
> interrupt sources since polling sources are regularly checked and
> shouldn't be used for fatal error scenarios. For interrupt driven
> sources, there could already be a fatal error pending, so we should
> handle it immediately.

Whatever it is, you can't call it there as it could deadlock. You need
to think about doing that differently. If you can't come up with a
solution quickly, it should be reverted and then you can try again
later.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
-- 

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ