On 06/07/2012 04:05 PM, Andrew Morton wrote: > On Thu, 7 Jun 2012 13:53:20 +1000 > Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > >> Hi Andrew, >> >> My boot of next-20120607 in PowerPC produces lots of these warnings: >> >> BUG: Bad rss-counter state mm:c000000278508000 idx:0 val:-27 >> BUG: Bad rss-counter state mm:c000000278284000 idx:0 val:-27 >> BUG: Bad rss-counter state mm:c000000279e13000 idx:0 val:-27 >> BUG: Bad rss-counter state mm:c000000278285400 idx:0 val:-27 >> >> And so on (with different mm, idx and val numbers). Searching showed me >> commit "mm: correctly synchronize rss-counters at exit/exec" which seems >> to be there to fix this exact problem? > > Well that's a worry. Are you really sure > mm-correctly-synchronize-rss-counters-at-exit-exec.patch was applied at > the time? > > There's been an extended amount of inconclusive waffling on that patch, > but I thought it concerned the best way to fix it, rather than > *whether* it fixes it. I see those same errors on my ARM system. I found that reverting that patch (105d42c mm: correctly synchronize rss-counters at exit/exec) made them go away, although I didn't investigate whether that just removed some debug print or actually solved a problem. -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
