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
| ||
|
Message-ID: <CAN_LGv1L3RLrwnzdN7oYM8ewjRoptGuK-4wQ9+oXWd+NK9CgNw@mail.gmail.com> Date: Sun, 6 Jan 2013 23:53:41 +0600 From: "Alexander E. Patrakov" <patrakov@...il.com> To: linux-kernel@...r.kernel.org Subject: Re: linux-3.7.1: disable and reenable NMI watchdog => panic Hi. As illustrated by the screen photo [1] (sorry for bad quality), disabling and then reenabling the NMI watchdog panics the kernel (3.7.1). This is reproducible in qemu-kvm as well, but I could not get the nice panic message to pop up there (most of the time, the real machine just locks up, too). This bug is rather important, as laptop-mode-tools, by default, try to reenable this NMI watchdog when AC power appears, and this is how I caught the bug the first time. [1] http://postimage.org/image/mjjifj1ip/ -- Alexander E. Patrakov -- 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/
Powered by blists - more mailing lists