From mboxrd@z Thu Jan 1 00:00:00 1970 From: bhat.srivatsa@gmail.com (Srivatsa Bhat) Date: Tue, 28 Feb 2012 16:01:37 +0530 Subject: How to debug system freeze? In-Reply-To: <4F469917.6050503@gmail.com> References: <4F469917.6050503@gmail.com> Message-ID: To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org On Fri, Feb 24, 2012 at 1:22 AM, ?ukasz Sowa wrote: > Hi, > > I'm experiencing strange bug when I close lid of my laptop - system > freezes (no reaction on keys, no response form ssh) hard and displays > some strange colour effects. The kernel log (after reboot) shows > nothing. My question is - how to debug it? Maybe there's a way to track > last called kernel function or something similar? > > Maybe you can try the pm_test framework (see Documentation/power/basic-pm- debugging.txt) to narrow down the problem. Regards, Srivatsa S. Bhat -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20120228/cea3beec/attachment-0001.html