On Sat, Oct 04, 2014 at 10:05:20AM -0700, Sarah A Sharp wrote: > Please excuse the non-wrapped email. My personal system is currently > b0rked, so I'm sending this in frustration from my phone. > > My laptop is currently completely hosed. Disk light on full solid > Mouse movement sluggish to the point of moving a couple cms per second. > Firefox window greyed out but not OOM killed yet. When this behavior > occurred in the past, if I ran top, I would see kswapd taking up 100% of > one of my two CPUs. > > If I can catch the system in time before mouse movement becomes too > sluggish, closing the browser window will cause kswapd usage to drop, and > the system goes back to a normal state. If I don't catch it in time, I > can't even ssh into the box to kill Firefox because the login times out. > Occasionally Firefox gets OOM killed, but most of the time I have to use > sysreq keys to reboot the system. > > This can be reproduced by using either Chrome or Firefox. Chrome fails > faster. I'm not sure whether it's related to loading tabs with a bunch of > images, maybe flash, but it takes around 10-15 tabs being open before it > starts to fail. I can try to characterize it further. > > System: Lenovo x220 Intel Sandy Bridge graphics > Ubuntu 14.04 with edgers PPA for Mesa > 3.16.3 kernel > > Since around the 3.8 kernel time frame, I've been able to reproduce this > behavior. I'm pretty sure it was a kernel change. Hm, doesn't ring any bell for i915 bugs, but to make sure can you please sample debugfs/dri/0/i915_gem_objects while things go south? Thanks, Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>