Re: [Crash-utility] crash problems with linux-4.5

> Hi, > > Just forcing a crash dump via 'echo c > /proc/sysrq-trigger' results in a crash > dump that has no tasks saved. I see _lots_ of these errors when loading the > dump with the latest crash from the git repo: > > crash: page excluded: kernel virtual address: ffff88103c5a9000 type: "fill_task_struct" > WARNING: active task ffff881078a04340 on cpu 3 not found in PID hash > > Then nothing is in the dump: > > crash> ps > PID PPID CPU TASK ST %MEM VSZ RSS COMM > > 0 0 0 ffffffff81c0f4c0 RU 0.0 0 0 [swapper/0] > crash> > > Any ideas? > > I'm using top-o-tree from Dave's git repo > https://github.com/crash-utility/crash.git: > > commit 04ab5c560a58246e782509d99214afcaf8462b4c > Author: Dave Anderson <anderson(a)redhat.com&gt; > Date: Tue Mar 1 16:16:48 2016 -0500 > > Put 2016 copyright in initial banner. > > > Thanks, > > Steve. If you have configured kdump to use makedumpfile -d31, it is probably this: [Crash-utility] makedumpfile: 4.5 kernel commit breaks page filtering https://www.redhat.com/archives/crash-utility/2016-February/msg00009.html > PS: I'm not on the crash-utility list, so please include my email in any > replies. PS: if you're using crash on bleeding edge kernels, you might want to join the list, at least in digest mode.