On Thu 04-04-13 08:27:18, Simon Jeons wrote: > On 04/03/2013 08:12 PM, Michal Hocko wrote: > >On Mon 01-04-13 21:14:40, Ivan Danov wrote: > >>The system freezes when RAM gets completely full. By using MATLAB, I > >>can get all 8GB RAM of my laptop full and it immediately freezes, > >>needing restart using the hardware button. > >Do you use swap (file/partition)? How big? Could you collect > >/proc/meminfo and /proc/vmstat (every few seconds)[1]? > >What does it mean when you say the system freezes? No new processes can > >be started or desktop environment doesn't react on your input? Do you > >see anything in the kernel log? OOM killer e.g. > >In case no new processes could be started what does sysrq+m say when the > >system is frozen? > > > >What is your kernel config? > > > >>Other people have > >>reported the bug at since 2007. It seems that only the 64-bit > >>version is affected and people have reported that enabling DMA in > >>BIOS settings solve the problem. However, my laptop lacks such an > >>option in the BIOS settings, so I am unable to test it. More > >>information about the bug could be found at: > >>https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1162073 and > >>https://bugs.launchpad.net/ubuntu/+source/linux/+bug/159356. > >> > >>Best Regards, > >>Ivan > >> > >--- > >[1] E.g. by > >while true > >do > > STAMP=`date +%s` > > cat /proc/meminfo > meminfo.$STAMP > > cat /proc/vmscan > meminfo.$STAMP > > s/vmscan/vmstat Right. Sorry about the typo and thanks for pointing out Simon. > > > sleep 2s > >done > -- Michal Hocko SUSE Labs -- 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>