Messages in this thread | | | Date | Sun, 29 Jan 2006 17:56:43 -0700 | From | Ken MacFerrin <> | Subject | Re: PROBLEM: kernel BUG at mm/rmap.c:486 - kernel 2.6.15-r1 |
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Ken MacFerrin wrote: > Jesper Juhl wrote: > >> On 1/28/06, Ken MacFerrin <lists@macferrin.com> wrote: >> >>> I started getting hard lockups on my desktop PC with the error "kernel >>> BUG at mm/rmap.c:487" starting with kernel 2.6.13 and continuing through >>> 2.6.14. After switching to 2.6.15 the lockups have continued with the >>> message "kernel BUG at mm/rmap.c:486". >>> >>> The frequency and circumstance are completely random which originally >>> had me suspecting bad memory but after running Memtest86+ for over 12 >>> hours without error I'm at a loss. >>> >>> I'm running the binary Nvidia driver so I'll understand if I can't get >>> help here but in searching through the list archives it would seem I'm >>> not alone and I am willing to try any patches that may help diagnose the >>> issue. The crash happens at least daily and I've seen no difference in >>> running kernels with or without PREEMPT enabled. >>> >> >> If you don't actually *need* accelerated 3D (or if you could do >> without it for a while), switching to the "nv" driver for a few >> days/weeks would be interresting. If the crashes go away that would >> point towards the nvidia driver, if they don't go away we'll get a >> nice untainted crash report. >> > > Thanks to all for the response. In hopes of helping to isolate this I > will move back over to the "nv" driver to see if I can recreate the > problem and get a clean bug report before applying Hugh's patch. > > This crash currently happens daily for me so I should be able to test > this relatively quickly. > -Ken
Unfortunately it seems that the "nv" driver in Xorg does not currently support multiple displays on a single video card with dual heads. Not being able to at least run xinerama is a deal breaker for me so I'm back to the binary nvidia driver using twinview. At this point I will apply Hugh's patch and post any further "Bad page state" and "Bad rmap" messages as instructed.
Thanks, Ken
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