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:	Thu, 3 Jan 2013 13:11:56 +0000
From:	Alan Cox <>
To:	Daniel J Blueman <>
Cc:	Peter Jones <>,,,
	Linux Kernel <>,
Subject: Re: 3.8-rc2: EFI framebuffer lock inversion...

On Thu, 3 Jan 2013 20:56:30 +0800
Daniel J Blueman <> wrote:

> On 3.8-rc2 with lockdep enabled and dual-GPU setup (Macbook Pro
> Retina), I see two releated lock inversion issues with the EFI
> framebuffer, leading to possible deadlock: when X takes over from the
> EFI framebuffer [1] and when nouveau releases the framebuffer when
> being vgaswitcherood [2].
> Let me know if you'd like any testing or analysis when I can get the time.

The fb layer locking was broken. I posted patches early December which
should have fixed the ones we know about. ('fb: Rework locking to fix
lock ordering on takeover').

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists