On Tue, 22 Nov 2011 at 13:17, Benjamin Herrenschmidt wrote: > Is your powerbook one of those who can actually use xmon ? (ie, keyboard > is working ? If it's usb it won't but if it's adb it will). Yes, with CONFIG_XMON=y the xmon> prompt appeared on the screen and the keyboard was working too. See the xmon* jpegs here: http://nerdbynature.de/bits/3.2.0-rc1/oops/ > What would be useful would be to see if you can reproduce with SLAB > and/or after backing out the cpu partial functionality. I'm currently running with SLUB again but with /sys/kernel/slab/*/cpu_partial all set to "0" (affecting ~250 files). The box is running for some hours now and pretty loaded with both CPU and disk i/o (load 6-7, which is pretty high for this machine) and it did not oops yet. Looks like setting cpu_partial to 0 does make a difference. Christian. # cat /proc/cpuinfo processor : 0 cpu : 7447A, altivec supported clock : 749.999000MHz revision : 1.2 (pvr 8003 0102) bogomips : 36.86 timebase : 18432000 platform : PowerMac model : PowerBook6,8 machine : PowerBook6,8 motherboard : PowerBook6,8 MacRISC3 Power Macintosh detected as : 287 (PowerBook G4 12") pmac flags : 0000001a L2 cache : 512K unified pmac-generation : NewWorld Memory : 1280 MB -- BOFH excuse #176: vapors from evaporating sticky-note adhesives -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>