On Mon, 02 May 2011 10:37:22 -0400 Valdis.Kletnieks@xxxxxx wrote: > On Sun, 01 May 2011 20:26:54 EDT, Valdis.Kletnieks@xxxxxx said: > > On Fri, 29 Apr 2011 16:26:16 PDT, akpm@xxxxxxxxxxxxxxxxxxxx said: > > > The mm-of-the-moment snapshot 2011-04-29-16-25 has been uploaded to > > > > > > http://userweb.kernel.org/~akpm/mmotm/ > > > > Dell Latitude E6500 laptop, Core2 Due P8700, 4G RAM, 2G swap.Z86_64 kernel. > > > > I was running a backup of the system to an external USB hard drive. > > Is a red herring. Am seeing it again, after only 20 minutes of uptime, and so > far I've only gotten 1.2G or so into the 4G ram (2.5G still free), and never > touched swap yet. > > Aha! I have a reproducer (found while composing this note). /bin/su will > reliably trigger it (4 tries out of 4, launching from a bash shell that itself > has sane VmRSS and VmHWM values). So it's a specific code sequence doing it > (probably one syscall doing something quirky). > > Now if I could figure out how to make strace look at the VmRSS after each > syscall, or get gdb to do similar. Any suggestions? Am open to perf/other > solutions as well, if anybody has one handy... > hm, me too. After boot, hald has a get_mm_counter(mm, MM_ANONPAGES) of 0xffffffffffff3c27. Bisected to Pater's mm-extended-batches-for-generic-mmu_gather.patch, can't see how it did that. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>